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diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/LICENSE b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/LICENSE
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+
+ Apache License
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--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/META-INF/MANIFEST.MF
@@ -0,0 +1,46 @@
+Manifest-Version: 1.0
+Export-Package: org.apache.tuscany.sca.contribution.scanner;uses:="org
+ .apache.tuscany.sca.contribution.processor,org.apache.tuscany.sca.ext
+ ensibility";version="2.0.0",org.apache.tuscany.sca.contribution.resolve
+ r;uses:="org.apache.tuscany.sca.assembly,org.apache.tuscany.sca.core,
+ org.apache.tuscany.sca.contribution,org.apache.tuscany.sca.extensibil
+ ity";version="2.0.0",org.apache.tuscany.sca.contribution.processor;uses
+ :="org.apache.tuscany.sca.assembly,org.apache.tuscany.sca.core,org.ap
+ ache.tuscany.sca.policy,org.apache.tuscany.sca.monitor,org.apache.tus
+ cany.sca.extensibility,org.xml.sax,javax.xml.namespace,javax.xml.stre
+ am,javax.xml.stream.util,javax.xml.transform,org.apache.tuscany.sca.c
+ ontribution.resolver,javax.xml.transform.stream,javax.xml.validation,
+ org.xml.sax.helpers";version="2.0.0",org.apache.tuscany.sca.contributio
+ n;uses:="org.apache.tuscany.sca.assembly,org.apache.tuscany.sca.contr
+ ibution.resolver";version="2.0.0"
+Private-Package: org.apache.tuscany.sca.contribution.impl;version="1.4
+ "
+Tool: Bnd-0.0.255
+Bundle-Name: Apache Tuscany SCA Contribution Model
+Created-By: 1.6.0_07 (Sun Microsystems Inc.)
+Bundle-Vendor: The Apache Software Foundation
+Bundle-Version: 2.0.0
+Bnd-LastModified: 1225397102546
+Bundle-ManifestVersion: 2
+Bundle-License: http://www.apache.org/licenses/LICENSE-2.0.txt
+Bundle-Description: Apache Tuscany SCA Contribution Model
+Import-Package: javax.xml.namespace,
+ javax.xml.stream,
+ javax.xml.stream.util,
+ javax.xml.transform,
+ javax.xml.transform.stream,
+ javax.xml.validation,
+ org.apache.tuscany.sca.assembly;version="2.0.0",
+ org.apache.tuscany.sca.contribution;version="2.0.0",
+ org.apache.tuscany.sca.contribution.processor;version="2.0.0",
+ org.apache.tuscany.sca.contribution.resolver;version="2.0.0",
+ org.apache.tuscany.sca.contribution.scanner;version="2.0.0",
+ org.apache.tuscany.sca.core;version="2.0.0",
+ org.apache.tuscany.sca.extensibility;version="2.0.0",
+ org.apache.tuscany.sca.monitor;version="2.0.0",
+ org.apache.tuscany.sca.policy;version="2.0.0",
+ org.xml.sax,
+ org.xml.sax.helpers
+Bundle-SymbolicName: org.apache.tuscany.sca.contribution
+Bundle-DocURL: http://www.apache.org/
+
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/NOTICE b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/NOTICE
new file mode 100644
index 0000000000..25bb89c9b2
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/NOTICE
@@ -0,0 +1,6 @@
+${pom.name}
+Copyright (c) 2005 - 2009 The Apache Software Foundation
+
+This product includes software developed by
+The Apache Software Foundation (http://www.apache.org/).
+
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/pom.xml b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/pom.xml
new file mode 100644
index 0000000000..4bf8068f1d
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/pom.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+ <parent>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-modules</artifactId>
+ <version>2.0-M2-SNAPSHOT</version>
+ <relativePath>../pom.xml</relativePath>
+ </parent>
+ <artifactId>tuscany-contribution</artifactId>
+ <name>Apache Tuscany SCA Contribution Model</name>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-assembly</artifactId>
+ <version>2.0-M2-SNAPSHOT</version>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-extensibility</artifactId>
+ <version>2.0-M2-SNAPSHOT</version>
+ </dependency>
+
+ <!--
+ <dependency>
+ <groupId>javax.xml.stream</groupId>
+ <artifactId>stax-api</artifactId>
+ <version>1.0-2</version>
+ </dependency>
+ -->
+
+ <dependency>
+ <groupId>org.apache.geronimo.specs</groupId>
+ <artifactId>geronimo-stax-api_1.0_spec</artifactId>
+ <version>1.0.1</version>
+ </dependency>
+ </dependencies>
+
+</project>
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/Artifact.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/Artifact.java
new file mode 100644
index 0000000000..7400501d85
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/Artifact.java
@@ -0,0 +1,86 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution;
+
+import org.apache.tuscany.sca.assembly.Base;
+
+
+/**
+ * Represents an artifact in an SCA contribution.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface Artifact extends Base {
+
+ /**
+ * Returns the URI that unique identifies the artifact inside the contribution.
+ *
+ * @return The artifact URI
+ */
+ String getURI();
+
+ /**
+ * Sets the URI that uniquely identifies the artifact inside the contribution.
+ *
+ * @param uri The artifact URI
+ */
+ void setURI(String uri);
+
+ /**
+ * Returns the location of the artifact.
+ *
+ * @return The artifact location
+ */
+ String getLocation();
+
+ /**
+ * Set the location of the artifact.
+ *
+ * @param location The artifact location
+ */
+ void setLocation(String location);
+
+
+ /**
+ * Returns the in-memory model representing the artifact.
+ *
+ * @return The model object
+ */
+ Object getModel();
+
+ /**
+ * Sets the in-memory model representing the artifact.
+ *
+ * @param model The model object
+ */
+ void setModel(Object model);
+
+ /**
+ * Returns the contents of the artifact cached here.
+ * @return the contents of the artifact
+ */
+ byte[] getContents();
+
+ /**
+ * Sets the contents of the artifact.
+ * @param contents the contents of the artifact
+ */
+ void setContents(byte[] contents);
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/Constants.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/Constants.java
new file mode 100644
index 0000000000..5fb021b523
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/Constants.java
@@ -0,0 +1,32 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution;
+
+/**
+ * Constants used in SCA contribution.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface Constants {
+ String XMLSCHEMA_NS = "http://www.w3.org/2001/XMLSchema";
+
+ String SCA11_NS = "http://docs.oasis-open.org/ns/opencsa/sca/200903";
+ String SCA11_TUSCANY_NS = "http://tuscany.apache.org/xmlns/sca/1.1";
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/ContentType.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/ContentType.java
new file mode 100644
index 0000000000..81b0b08b9d
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/ContentType.java
@@ -0,0 +1,40 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution;
+
+/**
+ * Constants for the main supported contribution package type.
+ *
+ * @version $Rev$ $Date$
+ */
+@Deprecated
+public interface ContentType {
+
+ /**
+ * Java compressed contribution package
+ */
+ String JAR = "application/x-compressed";
+
+ /**
+ * Filesystem folder contribution package
+ */
+ String FOLDER = "application/vnd.tuscany.folder";
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/Contribution.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/Contribution.java
new file mode 100644
index 0000000000..cdf397a500
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/Contribution.java
@@ -0,0 +1,117 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+
+/**
+ * The representation of an SCA contribution.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface Contribution extends Artifact {
+
+ /**
+ * Default location of contribution metadata in an SCA contribution.
+ */
+ String SCA_CONTRIBUTION_META = "META-INF/sca-contribution.xml";
+
+ /**
+ * Default location of a generated contribution metadata in an SCA contribution.
+ */
+ String SCA_CONTRIBUTION_GENERATED_META = "META-INF/sca-contribution-generated.xml";
+
+ /**
+ * Returns a list of exports based on the contribution metadata.
+ *
+ * @return The list of exports in this contribution
+ */
+ List<Export> getExports();
+
+ /**
+ * Returns a list of imports based on the contribution metadata.
+ *
+ * @return The list of imports in this contribution
+ */
+ List<Import> getImports();
+
+ /**
+ * Returns the list of deployable composites in the contribution.
+ *
+ * @return The list of deployable composites
+ */
+ List<Composite> getDeployables();
+
+ /**
+ * Returns the list of artifacts in the contribution.
+ *
+ * @return The list of artifacts in the contribution
+ */
+ List<Artifact> getArtifacts();
+
+ /**
+ * Returns the model resolver for the models representing the artifacts
+ * visible in the scope of this contribution.
+ *
+ * @return The model resolver
+ */
+ ModelResolver getModelResolver();
+
+ /**
+ * Sets the model resolver for the models representing the artifacts
+ * visible in the scope of this contribution.
+ *
+ * @param modelResolver The model resolver
+ */
+ void setModelResolver(ModelResolver modelResolver);
+
+ /**
+ * Returns the list of contributions that this contribution depends on.
+ *
+ * @return
+ */
+ List<Contribution> getDependencies();
+
+ /**
+ * Returns the ClassLoader used to load classes and resources from
+ * this contribution
+ *
+ * FIXME Remove this, the base contribution model should not depend
+ * on Java ClassLoaders.
+ *
+ * @return The contribution ClassLoader
+ */
+ ClassLoader getClassLoader();
+
+ /**
+ * Sets the ClassLoader used to load classes and resources from
+ * this contribution
+ *
+ * FIXME Remove this, the base contribution model should not depend
+ * on Java ClassLoaders.
+ *
+ * @param classLoader the contribution class loader
+ */
+ void setClassLoader(ClassLoader classLoader);
+
+} \ No newline at end of file
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/ContributionFactory.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/ContributionFactory.java
new file mode 100644
index 0000000000..67c9a05a0b
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/ContributionFactory.java
@@ -0,0 +1,73 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution;
+
+
+/**
+ * A factory for the contribution model.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ContributionFactory {
+
+ /**
+ * Create a contribution model object
+ *
+ * @return The new contribution model object
+ */
+ Contribution createContribution();
+
+ /**
+ * Create a contribution metadata model object
+ *
+ * @return The new contribution metadata model object
+ */
+ ContributionMetadata createContributionMetadata();
+
+ /**
+ * Create a deployedArtifact model object
+ *
+ * @return The new deployedArtifact model object
+ */
+ @Deprecated
+ DeployedArtifact createDeployedArtifact();
+
+ /**
+ * Create an artifact model object
+ *
+ * @return The new artifact model object
+ */
+ Artifact createArtifact();
+
+ /**
+ * Create a default import model object.
+ *
+ * @return the new default import model object
+ */
+ DefaultImport createDefaultImport();
+
+ /**
+ * Create a default export model object.
+ *
+ * @return the new default export model object
+ */
+ DefaultExport createDefaultExport();
+
+} \ No newline at end of file
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/ContributionMetadata.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/ContributionMetadata.java
new file mode 100644
index 0000000000..4043fb9eda
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/ContributionMetadata.java
@@ -0,0 +1,55 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Base;
+import org.apache.tuscany.sca.assembly.Composite;
+
+/**
+ * The representation of SCA contribution metadata.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ContributionMetadata extends Base {
+
+ /**
+ * Returns a list of exports based on the contribution metadata.
+ *
+ * @return The list of exports
+ */
+ List<Export> getExports();
+
+ /**
+ * Returns a list of imports based on the contribution metadata.
+ *
+ * @return The list of imports
+ */
+ List<Import> getImports();
+
+ /**
+ * Returns the list of deployable based on the contribution metadata.
+ *
+ * @return The list of deployable composites
+ */
+ List<Composite> getDeployables();
+
+} \ No newline at end of file
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/DefaultContributionFactory.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/DefaultContributionFactory.java
new file mode 100644
index 0000000000..98954c288a
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/DefaultContributionFactory.java
@@ -0,0 +1,32 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution;
+
+import org.apache.tuscany.sca.contribution.impl.ContributionFactoryImpl;
+
+
+/**
+ * Default implementation of a contribution model factory.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultContributionFactory extends ContributionFactoryImpl {
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/DefaultExport.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/DefaultExport.java
new file mode 100644
index 0000000000..b2eddb8336
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/DefaultExport.java
@@ -0,0 +1,30 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution;
+
+
+/**
+ * The representation of an export that exports all artifacts in
+ * a contribution.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface DefaultExport extends Export {
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/DefaultImport.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/DefaultImport.java
new file mode 100644
index 0000000000..20798dcd17
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/DefaultImport.java
@@ -0,0 +1,30 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution;
+
+
+/**
+ * The representation of a default import that imports artifacts from
+ * all contributions.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface DefaultImport extends Import {
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/DeployedArtifact.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/DeployedArtifact.java
new file mode 100644
index 0000000000..ffe190132c
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/DeployedArtifact.java
@@ -0,0 +1,29 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution;
+
+/**
+ * Representation of a deployed artifact
+ *
+ * @version $Rev$ $Date$
+ */
+@Deprecated
+public interface DeployedArtifact extends Artifact {
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/Export.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/Export.java
new file mode 100644
index 0000000000..bfa16b1ce3
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/Export.java
@@ -0,0 +1,47 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution;
+
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+
+/**
+ * The representation of an export.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface Export {
+
+ /**
+ * Returns the model resolver for the models representing artifacts
+ * made available by this export.
+ *
+ * @return The model resolver
+ */
+ ModelResolver getModelResolver();
+
+ /**
+ * Sets the model resolver for the models representing artifacts
+ * made available by this export.
+ *
+ * @param modelResolver
+ */
+ void setModelResolver(ModelResolver modelResolver);
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/Import.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/Import.java
new file mode 100644
index 0000000000..35076f55a7
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/Import.java
@@ -0,0 +1,56 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution;
+
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+
+
+/**
+ * The representation of an import.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface Import {
+
+ /**
+ * Returns the model resolver for the models representing artifacts
+ * made available by this import.
+ *
+ * @return The model resolver
+ */
+ ModelResolver getModelResolver();
+
+ /**
+ * Sets the model resolver for the models representing artifacts
+ * made available by this import.
+ *
+ * @param modelResolver The model resolver
+ */
+ void setModelResolver(ModelResolver modelResolver);
+
+ /**
+ * Verify that a specific export actually exports what is being imported.
+ *
+ * @param export The Exported being verified
+ * @return true/false
+ */
+ boolean match(Export export);
+
+} \ No newline at end of file
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/PackageType.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/PackageType.java
new file mode 100644
index 0000000000..26833bb4c0
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/PackageType.java
@@ -0,0 +1,57 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution;
+
+/**
+ * Constants for the main supported contribution package types.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface PackageType {
+
+ /**
+ * Java compressed contribution package
+ */
+ String JAR = "application/x-compressed";
+
+ /**
+ * Zip archive contribution package
+ */
+ String ZIP = "application/x-compressed";
+
+ /**
+ * Filesystem folder contribution package
+ */
+ String FOLDER = "application/vnd.tuscany.folder";
+
+
+ String BUNDLE = "application/osgi.bundle";
+
+ /**
+ * Java EE Web Application Archive
+ */
+ String WAR = "application/war";
+
+ /**
+ * Java EE Enterprise Application Archive
+ */
+ String EAR = "application/ear";
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/ArtifactImpl.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/ArtifactImpl.java
new file mode 100644
index 0000000000..881987f622
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/ArtifactImpl.java
@@ -0,0 +1,103 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.impl;
+
+import org.apache.tuscany.sca.contribution.Artifact;
+
+
+/**
+ * The model representing an artifact in a contribution.
+ *
+ * @version $Rev$ $Date$
+ */
+class ArtifactImpl implements Artifact {
+ private String uri;
+ private String location;
+ private Object model;
+ private boolean unresolved;
+ private byte[] contents;
+
+ ArtifactImpl() {
+ }
+
+ public String getLocation() {
+ return location;
+ }
+
+ public void setLocation(String location) {
+ this.location = location;
+ }
+
+ public String getURI() {
+ return uri;
+ }
+
+ public void setURI(String uri) {
+ this.uri = uri;
+ }
+
+ public Object getModel() {
+ return model;
+ }
+
+ public void setModel(Object model) {
+ this.model = model;
+ }
+
+ public byte[] getContents() {
+ return contents;
+ }
+
+ public void setContents(byte[] contents) {
+ this.contents = contents;
+ }
+
+ public boolean isUnresolved() {
+ return unresolved;
+ }
+
+ public void setUnresolved(boolean unresolved) {
+ this.unresolved = unresolved;
+ }
+
+ @Override
+ public int hashCode() {
+ return uri.hashCode();
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (obj == this) {
+ return true;
+ } else {
+ if (obj instanceof Artifact) {
+ return uri.equals(((Artifact)obj).getURI());
+ } else {
+ return false;
+ }
+ }
+ }
+
+ @Override
+ public String toString() {
+ return "Artifact:" + uri + "\n" +
+ "at: " + location;
+ }
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/ContributionFactoryImpl.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/ContributionFactoryImpl.java
new file mode 100644
index 0000000000..c678c2eaef
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/ContributionFactoryImpl.java
@@ -0,0 +1,67 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.impl;
+
+import org.apache.tuscany.sca.contribution.Artifact;
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.ContributionFactory;
+import org.apache.tuscany.sca.contribution.ContributionMetadata;
+import org.apache.tuscany.sca.contribution.DefaultExport;
+import org.apache.tuscany.sca.contribution.DefaultImport;
+import org.apache.tuscany.sca.contribution.DeployedArtifact;
+
+
+/**
+ * Default implementation of a contribution model factory.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ContributionFactoryImpl implements ContributionFactory {
+
+ protected ContributionFactoryImpl() {
+ }
+
+ public Contribution createContribution() {
+ return new ContributionImpl();
+ }
+
+ public ContributionMetadata createContributionMetadata() {
+ return new ContributionMetadataImpl();
+ }
+
+ public Artifact createArtifact() {
+ return new ArtifactImpl();
+ }
+
+ public DefaultExport createDefaultExport() {
+ return new DefaultExportImpl();
+ }
+
+ public DefaultImport createDefaultImport() {
+ return new DefaultImportImpl();
+ }
+
+ @Deprecated
+ public DeployedArtifact createDeployedArtifact() {
+ class DeployedArtifactImpl extends ArtifactImpl implements DeployedArtifact {
+ }
+ return new DeployedArtifactImpl();
+ }
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/ContributionImpl.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/ContributionImpl.java
new file mode 100644
index 0000000000..0b41016caa
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/ContributionImpl.java
@@ -0,0 +1,159 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.contribution.Artifact;
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.Export;
+import org.apache.tuscany.sca.contribution.Import;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+
+/**
+ * The representation of a deployed contribution
+ *
+ * @version $Rev$ $Date$
+ */
+class ContributionImpl implements Contribution {
+ private String uri;
+ private String location;
+ private Object model;
+ private byte[] contents;
+ private boolean unresolved;
+ private List<Export> exports = new ArrayList<Export>();
+ private List<Import> imports = new ArrayList<Import>();
+ private List<Composite> deployables = new ArrayList<Composite>();
+ private List<Artifact> artifacts = new ArrayList<Artifact>();
+ private List<Contribution> dependencies = new ArrayList<Contribution>();
+ private ModelResolver modelResolver;
+
+ // FIXME remove this dependency on Java ClassLoaders
+ private ClassLoader classLoader;
+
+ ContributionImpl() {
+ }
+
+ public String getLocation() {
+ return this.location;
+ }
+
+ public void setLocation(String location) {
+ this.location = location;
+ }
+
+ //FIXME Remove dependency on Java ClassLoaders
+ public ClassLoader getClassLoader() {
+ return classLoader;
+ }
+
+ //FIXME Remove dependency on Java ClassLoaders
+ public void setClassLoader(ClassLoader classLoader) {
+ this.classLoader = classLoader;
+ }
+
+
+ public String getURI() {
+ return this.uri;
+ }
+
+ public void setURI(String uri) {
+ this.uri = uri;
+ }
+
+ public Object getModel() {
+ return model;
+ }
+
+ public void setModel(Object model) {
+ this.model = model;
+ }
+
+ public byte[] getContents() {
+ return contents;
+ }
+
+ public void setContents(byte[] contents) {
+ this.contents = contents;
+ }
+
+ public boolean isUnresolved() {
+ return unresolved;
+ }
+
+ public void setUnresolved(boolean unresolved) {
+ this.unresolved = unresolved;
+ }
+
+ public ModelResolver getModelResolver() {
+ return modelResolver;
+ }
+
+ public void setModelResolver(ModelResolver modelResolver) {
+ this.modelResolver = modelResolver;
+ }
+
+ public List<Contribution> getDependencies() {
+ return dependencies;
+ }
+
+ public List<Export> getExports() {
+ return exports;
+ }
+
+ public List<Import> getImports() {
+ return imports;
+ }
+
+ public List<Composite> getDeployables() {
+ return deployables;
+ }
+
+ public List<Artifact> getArtifacts() {
+ return artifacts;
+ }
+
+ @Override
+ public int hashCode() {
+ return uri.hashCode();
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (obj == this) {
+ return true;
+ } else {
+ if (obj instanceof Artifact) {
+ return uri.equals(((Artifact)obj).getURI());
+ } else {
+ return false;
+ }
+ }
+ }
+
+ @Override
+ public String toString() {
+ return "Contribution : " + uri + " \n" +
+ "from: " + location;
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/ContributionMetadataImpl.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/ContributionMetadataImpl.java
new file mode 100644
index 0000000000..75b12b1260
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/ContributionMetadataImpl.java
@@ -0,0 +1,64 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.contribution.ContributionMetadata;
+import org.apache.tuscany.sca.contribution.Export;
+import org.apache.tuscany.sca.contribution.Import;
+
+/**
+ * The representation of a deployed contribution
+ *
+ * @version $Rev$ $Date$
+ */
+class ContributionMetadataImpl implements ContributionMetadata {
+ private boolean unresolved;
+ private List<Export> exports = new ArrayList<Export>();
+ private List<Import> imports = new ArrayList<Import>();
+ private List<Composite> deployables = new ArrayList<Composite>();
+
+ ContributionMetadataImpl() {
+ }
+
+ public boolean isUnresolved() {
+ return unresolved;
+ }
+
+ public void setUnresolved(boolean unresolved) {
+ this.unresolved = unresolved;
+ }
+
+ public List<Export> getExports() {
+ return exports;
+ }
+
+ public List<Import> getImports() {
+ return imports;
+ }
+
+ public List<Composite> getDeployables() {
+ return deployables;
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/DefaultExportImpl.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/DefaultExportImpl.java
new file mode 100644
index 0000000000..e67395337a
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/DefaultExportImpl.java
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.impl;
+
+import org.apache.tuscany.sca.contribution.DefaultExport;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+
+/**
+ * The representation of an export for the contribution
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultExportImpl implements DefaultExport {
+ private ModelResolver modelResolver;
+
+ protected DefaultExportImpl() {
+ super();
+ }
+
+ public ModelResolver getModelResolver() {
+ return modelResolver;
+ }
+
+ public void setModelResolver(ModelResolver modelResolver) {
+ this.modelResolver = modelResolver;
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/DefaultImportImpl.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/DefaultImportImpl.java
new file mode 100644
index 0000000000..17c09f2cbc
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/impl/DefaultImportImpl.java
@@ -0,0 +1,55 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.impl;
+
+import org.apache.tuscany.sca.contribution.DefaultExport;
+import org.apache.tuscany.sca.contribution.DefaultImport;
+import org.apache.tuscany.sca.contribution.Export;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+
+/**
+ * The representation of an import for the contribution
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultImportImpl implements DefaultImport {
+ private ModelResolver modelResolver;
+
+ protected DefaultImportImpl() {
+ super();
+ }
+
+ public ModelResolver getModelResolver() {
+ return modelResolver;
+ }
+
+ public void setModelResolver(ModelResolver modelResolver) {
+ this.modelResolver = modelResolver;
+ }
+
+
+ public boolean match(Export export) {
+ if (export instanceof DefaultExport) {
+ return true;
+ }
+ return false;
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ArtifactProcessor.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ArtifactProcessor.java
new file mode 100644
index 0000000000..5be0b188f4
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ArtifactProcessor.java
@@ -0,0 +1,47 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+
+/**
+ * Base interface for artifact processors.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ArtifactProcessor<M> {
+
+ /**
+ * Resolve references from this model to other models. For example references
+ * from a composite to another one, or references from a composite to a WSDL
+ * model.
+ *
+ * @param model The model to resolve
+ * @param resolver The resolver to use to resolve referenced models
+ */
+ void resolve(M model, ModelResolver resolver) throws ContributionResolveException;
+
+ /**
+ * Returns the type of model handled by this artifact processor.
+ *
+ * @return The type of model handled by this artifact processor
+ */
+ Class<M> getModelType();
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ArtifactProcessorExtensionPoint.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ArtifactProcessorExtensionPoint.java
new file mode 100644
index 0000000000..029df61f0f
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ArtifactProcessorExtensionPoint.java
@@ -0,0 +1,58 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+/**
+ * An extension point for artifact processors.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ArtifactProcessorExtensionPoint<P extends ArtifactProcessor> {
+
+ /**
+ * Add an artifact processor.
+ *
+ * @param artifactProcessor The artifact processor to add
+ */
+ void addArtifactProcessor(P artifactProcessor);
+
+ /**
+ * Remove an artifact processor.
+ *
+ * @param artifactProcessor The artifact processor to remove
+ */
+ void removeArtifactProcessor(P artifactProcessor);
+
+ /**
+ * Returns the processor associated with the given artifact type.
+ *
+ * @param artifactType An artifact type
+ * @return The processor associated with the given artifact type
+ */
+ P getProcessor(Object artifactType);
+
+ /**
+ * Returns the processor associated with the given model type.
+ *
+ * @param modelType A model type
+ * @return The processor associated with the given model type
+ */
+ P getProcessor(Class<?> modelType);
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/BaseStAXArtifactProcessor.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/BaseStAXArtifactProcessor.java
new file mode 100644
index 0000000000..158b3d7e64
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/BaseStAXArtifactProcessor.java
@@ -0,0 +1,539 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.processor;
+
+import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
+import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.StringTokenizer;
+
+import javax.xml.XMLConstants;
+import javax.xml.namespace.NamespaceContext;
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamConstants;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+
+/**
+ * A base class with utility methods for the other artifact processors in this module.
+ *
+ * @version $Rev$ $Date$
+ */
+public abstract class BaseStAXArtifactProcessor {
+
+ /**
+ * Returns a QName from a string.
+ * @param reader
+ * @param value
+ * @return
+ */
+ protected QName getQNameValue(XMLStreamReader reader, String value) {
+ if (value != null) {
+ int index = value.indexOf(':');
+ String prefix = index == -1 ? "" : value.substring(0, index);
+ String localName = index == -1 ? value : value.substring(index + 1);
+ String ns = reader.getNamespaceContext().getNamespaceURI(prefix);
+ if (ns == null) {
+ ns = "";
+ }
+ return new QName(ns, localName, prefix);
+ } else {
+ return null;
+ }
+ }
+
+ /**
+ * Returns the boolean value of an attribute.
+ * @param reader
+ * @param name
+ * @return
+ */
+ protected boolean getBoolean(XMLStreamReader reader, String name) {
+ String value = reader.getAttributeValue(null, name);
+ if (value == null) {
+ return false;
+ }
+ return Boolean.valueOf(value);
+ }
+
+ /**
+ * Returns the QName value of an attribute.
+ * @param reader
+ * @param name
+ * @return
+ */
+ protected QName getQName(XMLStreamReader reader, String name) {
+ String qname = reader.getAttributeValue(null, name);
+ return getQNameValue(reader, qname);
+ }
+
+ /**
+ * Returns the value of an attribute as a list of QNames.
+ * @param reader
+ * @param name
+ * @return
+ */
+ protected List<QName> getQNames(XMLStreamReader reader, String name) {
+ String value = reader.getAttributeValue(null, name);
+ if (value != null) {
+ List<QName> qnames = new ArrayList<QName>();
+ for (StringTokenizer tokens = new StringTokenizer(value); tokens.hasMoreTokens();) {
+ qnames.add(getQName(reader, tokens.nextToken()));
+ }
+ return qnames;
+ } else {
+ return Collections.emptyList();
+ }
+ }
+
+ /**
+ * Returns the string value of an attribute.
+ * @param reader
+ * @param name
+ * @return
+ */
+ protected String getString(XMLStreamReader reader, String name) {
+ return reader.getAttributeValue(null, name);
+ }
+
+ /**
+ * Test if an attribute is explicitly set
+ * @param reader
+ * @param name
+ * @return
+ */
+ protected boolean isSet(XMLStreamReader reader, String name) {
+ return reader.getAttributeValue(null, name) != null;
+ }
+
+ /**
+ * Returns the value of xsi:type attribute
+ * @param reader The XML stream reader
+ * @return The QName of the type, if the attribute is not present, null is
+ * returned.
+ */
+ protected QName getXSIType(XMLStreamReader reader) {
+ String qname = reader.getAttributeValue(XMLConstants.W3C_XML_SCHEMA_INSTANCE_NS_URI, "type");
+ return getQNameValue(reader, qname);
+ }
+
+ /**
+ * Parse the next child element.
+ * @param reader
+ * @return
+ * @throws XMLStreamException
+ */
+ protected boolean nextChildElement(XMLStreamReader reader) throws XMLStreamException {
+ while (reader.hasNext()) {
+ int event = reader.next();
+ if (event == END_ELEMENT) {
+ return false;
+ }
+ if (event == START_ELEMENT) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Advance the stream to the next END_ELEMENT event skipping any nested
+ * content.
+ * @param reader the reader to advance
+ * @throws XMLStreamException if there was a problem reading the stream
+ */
+ protected void skipToEndElement(XMLStreamReader reader) throws XMLStreamException {
+ int depth = 0;
+ while (reader.hasNext()) {
+ int event = reader.next();
+ if (event == XMLStreamConstants.START_ELEMENT) {
+ depth++;
+ } else if (event == XMLStreamConstants.END_ELEMENT) {
+ if (depth == 0) {
+ return;
+ }
+ depth--;
+ }
+ }
+ }
+
+ /**
+ *
+ * @param writer
+ * @param uri
+ * @throws XMLStreamException
+ */
+ private String writeElementPrefix(XMLStreamWriter writer, String uri) throws XMLStreamException {
+ if (uri == null) {
+ return null;
+ }
+ String prefix = writer.getPrefix(uri);
+ if (prefix != null) {
+ return null;
+ } else {
+
+ // Find an available prefix and bind it to the given URI
+ NamespaceContext nsc = writer.getNamespaceContext();
+ for (int i=1; ; i++) {
+ prefix = "ns" + i;
+ if (nsc.getNamespaceURI(prefix) == null) {
+ break;
+ }
+ }
+ writer.setPrefix(prefix, uri);
+ return prefix;
+ }
+
+ }
+
+ /**
+ * Start an element.
+ * @param uri
+ * @param name
+ * @param attrs
+ * @throws XMLStreamException
+ */
+ protected void writeStart(XMLStreamWriter writer, String uri, String name, XAttr... attrs) throws XMLStreamException {
+ String prefix = writeElementPrefix(writer, uri);
+ writer.writeStartElement(uri, name);
+ if (prefix != null){
+ writer.writeNamespace(prefix,uri);
+ }
+ writeAttributePrefixes(writer, attrs);
+ writeAttributes(writer, attrs);
+ }
+
+ /**
+ * Start an element.
+ * @param qname
+ * @param attrs
+ * @throws XMLStreamException
+ */
+ protected void writeStart(XMLStreamWriter writer, QName qname, XAttr... attrs) throws XMLStreamException {
+ writeStart(writer, qname.getNamespaceURI(), qname.getLocalPart(), attrs);
+ }
+
+ /**
+ * End an element.
+ * @param writer
+ * @throws XMLStreamException
+ */
+ protected void writeEnd(XMLStreamWriter writer) throws XMLStreamException {
+ writer.writeEndElement();
+ }
+
+ /**
+ * Start a document.
+ * @param writer
+ * @throws XMLStreamException
+ */
+ protected void writeStartDocument(XMLStreamWriter writer, String uri, String name, XAttr... attrs) throws XMLStreamException {
+ writer.writeStartDocument();
+ writer.setDefaultNamespace(uri);
+ writeStart(writer, uri, name, attrs);
+ writer.writeDefaultNamespace(uri);
+ }
+
+ /**
+ * Start a document.
+ * @param writer
+ * @param qname
+ * @param attrs
+ * @throws XMLStreamException
+ */
+ protected void writeStartDocument(XMLStreamWriter writer, QName qname, XAttr... attrs) throws XMLStreamException {
+ writeStartDocument(writer, qname.getNamespaceURI(), qname.getLocalPart(), attrs);
+ }
+
+ /**
+ * End a document.
+ * @param writer
+ * @throws XMLStreamException
+ */
+ protected void writeEndDocument(XMLStreamWriter writer) throws XMLStreamException {
+ writer.writeEndDocument();
+ }
+
+ /**
+ * Write attributes to the current element.
+ * @param writer
+ * @param attrs
+ * @throws XMLStreamException
+ */
+ protected void writeAttributes(XMLStreamWriter writer, XAttr... attrs) throws XMLStreamException {
+ for (XAttr attr : attrs) {
+ if (attr != null)
+ attr.write(writer);
+ }
+ }
+
+ /**
+ * Write attribute prefixes to the current element.
+ * @param writer
+ * @param attrs
+ * @throws XMLStreamException
+ */
+ protected void writeAttributePrefixes(XMLStreamWriter writer, XAttr... attrs) throws XMLStreamException {
+ for (XAttr attr : attrs) {
+ if (attr != null)
+ attr.writePrefix(writer);
+ }
+ }
+
+ /**
+ * Represents an XML attribute that needs to be written to a document.
+ */
+ public static class XAttr {
+
+ private static final String SCA11_NS = "http://docs.oasis-open.org/ns/opencsa/sca/200903";
+
+ private String uri = SCA11_NS;
+ private String name;
+ private Object value;
+
+ public XAttr(String uri, String name, String value) {
+ this.uri = uri;
+ this.name = name;
+ this.value = value;
+ }
+
+ public XAttr(String name, String value) {
+ this(null, name, value);
+ }
+
+ public XAttr(String uri, String name, List<?> values) {
+ this.uri = uri;
+ this.name = name;
+ this.value = values;
+ }
+
+ public XAttr(String name, List<?> values) {
+ this(null, name, values);
+ }
+
+ public XAttr(String uri, String name, Boolean value) {
+ this.uri = uri;
+ this.name = name;
+ this.value = value;
+ }
+
+ public XAttr(String name, Boolean value) {
+ this(null, name, value);
+ }
+
+ public XAttr(String uri, String name, Integer value) {
+ this.uri = uri;
+ this.name = name;
+ this.value = value;
+ }
+
+ public XAttr(String name, Integer value) {
+ this(null, name, value);
+ }
+
+ public XAttr(String uri, String name, Double value) {
+ this.uri = uri;
+ this.name = name;
+ this.value = value;
+ }
+
+ public XAttr(String name, Double value) {
+ this(null, name, value);
+ }
+
+ public XAttr(String uri, String name, QName value) {
+ this.uri = uri;
+ this.name = name;
+ this.value = value;
+ }
+
+ public XAttr(String name, QName value) {
+ this(null, name, value);
+ }
+
+ /**
+ * Writes a string from a QName and registers a prefix for its namespace.
+ * @param reader
+ * @param value
+ * @return
+ */
+ private String writeQNameValue(XMLStreamWriter writer, QName qname) throws XMLStreamException {
+ if (qname != null) {
+ String prefix = qname.getPrefix();
+ String uri = qname.getNamespaceURI();
+ prefix = writer.getPrefix(uri);
+ if (prefix != null) {
+
+ // Use the prefix already bound to the given URI
+ if (prefix.length() > 0) {
+ return prefix + ":" + qname.getLocalPart();
+ } else {
+
+ // Empty prefix, just return the local part of the given qname
+ return qname.getLocalPart();
+ }
+
+ } else {
+
+ // Find an available prefix and bind it to the given URI
+ NamespaceContext nsc = writer.getNamespaceContext();
+ for (int i=1; ; i++) {
+ prefix = "ns" + i;
+ if (nsc.getNamespaceURI(prefix) == null) {
+ break;
+ }
+ }
+ writer.setPrefix(prefix, uri);
+ writer.writeNamespace(prefix, uri);
+ return prefix + ":" + qname.getLocalPart();
+ }
+ } else {
+ return null;
+ }
+ }
+
+ /**
+ * Registers a prefix for the namespace of a QName.
+ * @param reader
+ * @param value
+ * @return
+ */
+ private void writeQNamePrefix(XMLStreamWriter writer, QName qname) throws XMLStreamException {
+ if (qname != null) {
+ String prefix = qname.getPrefix();
+ String uri = qname.getNamespaceURI();
+ prefix = writer.getPrefix(uri);
+ if (prefix != null) {
+ return;
+ } else {
+
+ // Find an available prefix and bind it to the given URI
+ NamespaceContext nsc = writer.getNamespaceContext();
+ for (int i=1; ; i++) {
+ prefix = "ns" + i;
+ if (nsc.getNamespaceURI(prefix) == null) {
+ break;
+ }
+ }
+ writer.setPrefix(prefix, uri);
+ writer.writeNamespace(prefix, uri);
+ }
+ }
+ }
+
+ /**
+ * Write to document
+ * @param writer
+ * @throws XMLStreamException
+ */
+ public void write(XMLStreamWriter writer) throws XMLStreamException {
+ String str;
+ if (value instanceof QName) {
+
+ // Write a QName
+ str = writeQNameValue(writer, (QName)value);
+
+ } else if (value instanceof List) {
+
+ // Write a list of values
+ List<?> values = (List<?>)value;
+ if (values.isEmpty()) {
+ return;
+ }
+ StringBuffer buffer = new StringBuffer();
+ for (Object v: values) {
+ if (v == null) {
+ // Skip null values
+ continue;
+ }
+
+ if (v instanceof XAttr) {
+ // Write an XAttr value
+ ((XAttr)v).write(writer);
+ continue;
+ }
+
+ if (buffer.length() != 0) {
+ buffer.append(' ');
+ }
+ if (v instanceof QName) {
+ // Write a QName value
+ buffer.append(writeQNameValue(writer, (QName)v));
+ } else {
+ // Write value as a string
+ buffer.append(String.valueOf(v));
+ }
+ }
+ str = buffer.toString();
+
+ } else {
+
+ // Write a string
+ if (value == null) {
+ return;
+ }
+ str = String.valueOf(value);
+ }
+ if (str.length() == 0) {
+ return;
+ }
+
+ // Write the attribute
+ if (uri != null && !uri.equals(SCA11_NS)) {
+ writer.writeAttribute(uri, name, str);
+ } else {
+ writer.writeAttribute(name,str);
+ }
+ }
+
+ /**
+ * Registers a prefix for the namespace of a QName or list of QNames
+ * @param writer
+ * @throws XMLStreamException
+ */
+ public void writePrefix(XMLStreamWriter writer) throws XMLStreamException {
+ if (value instanceof QName) {
+
+ // Write prefix for a single QName value
+ writeQNamePrefix(writer, (QName)value);
+
+ } else if (value instanceof List) {
+
+ // Write prefixes for a list of values
+ for (Object v: (List<?>)value) {
+ if (v instanceof QName) {
+ // Write prefix for a QName value
+ writeQNamePrefix(writer, (QName)v);
+
+ } else if (v instanceof XAttr) {
+ // Write prefix for an XAttr value
+ ((XAttr)v).writePrefix(writer);
+ }
+ }
+ }
+ }
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionException.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionException.java
new file mode 100644
index 0000000000..3b99eba586
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionException.java
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+/**
+ * Base class for exceptions raised by contribution services.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ContributionException extends Exception {
+
+ private static final long serialVersionUID = 4432880414927652578L;
+
+ protected ContributionException() {
+ super();
+ }
+
+ protected ContributionException(String message) {
+ super(message);
+ }
+
+ protected ContributionException(String message, Throwable cause) {
+ super(message, cause);
+ }
+
+ public ContributionException(Throwable cause) {
+ super(cause);
+ }
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionReadException.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionReadException.java
new file mode 100644
index 0000000000..6fd7d0c91e
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionReadException.java
@@ -0,0 +1,95 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+
+/**
+ * Denotes an exception while reading artifacts inside an SCA contribution.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ContributionReadException extends ContributionException {
+ public static final int UNDEFINED = -1;
+ private static final long serialVersionUID = -7459051598906813461L;
+ private String resourceURI;
+ private int line = UNDEFINED;
+ private int column = UNDEFINED;
+
+ public ContributionReadException(String message) {
+ super(message);
+ }
+
+ public ContributionReadException(String message, Throwable cause) {
+ super(message, cause);
+ }
+
+ public ContributionReadException(Throwable cause) {
+ super(cause);
+ }
+
+ /**
+ * Returns the location of the resource that was being read.
+ *
+ * @return the location of the resource that was being read
+ */
+ public String getResourceURI() {
+ return resourceURI;
+ }
+
+ /**
+ * Sets the location of the resource that was being read.
+ *
+ * @param resourceURI the location of the resource that was being read
+ */
+ public void setResourceURI(String resourceURI) {
+ this.resourceURI = resourceURI;
+ }
+
+ /**
+ * Returns the line inside the resource that was being read.
+ * @return the line inside the resource that was being read
+ */
+ public int getLine() {
+ return line;
+ }
+
+ /**
+ * Sets the line inside the resource that was being read.
+ * @param line the line inside the resource that was being read
+ */
+ public void setLine(int line) {
+ this.line = line;
+ }
+
+ /**
+ * Returns the column inside the resource that was being read.
+ * @return the column inside the resource that was being read
+ */
+ public int getColumn() {
+ return column;
+ }
+
+ /**
+ * Sets the column inside the resource that was being read.
+ * @param column the column inside the resource that was being read
+ */
+ public void setColumn(int column) {
+ this.column = column;
+ }
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionResolveException.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionResolveException.java
new file mode 100644
index 0000000000..fe1a09d398
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionResolveException.java
@@ -0,0 +1,42 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+
+/**
+ * Denotes a problem while resolving models inside an SCA contribution.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ContributionResolveException extends ContributionException {
+ private static final long serialVersionUID = -7459051598906813461L;
+
+ public ContributionResolveException(String message) {
+ super(message);
+ }
+
+ public ContributionResolveException(String message, Throwable cause) {
+ super(message, cause);
+ }
+
+ public ContributionResolveException(Throwable cause) {
+ super(cause);
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionRuntimeException.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionRuntimeException.java
new file mode 100644
index 0000000000..0039dd9f8b
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionRuntimeException.java
@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+/**
+ * Base class for runtime exceptions raised by contribution services.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ContributionRuntimeException extends RuntimeException {
+ private static final long serialVersionUID = 7711215366287498896L;
+
+ protected ContributionRuntimeException() {
+ super();
+ }
+
+ protected ContributionRuntimeException(String message) {
+ super(message);
+ }
+
+ protected ContributionRuntimeException(String message, Throwable cause) {
+ super(message, cause);
+ }
+
+ public ContributionRuntimeException(Throwable cause) {
+ super(cause);
+ }
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionWriteException.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionWriteException.java
new file mode 100644
index 0000000000..286c9dc791
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionWriteException.java
@@ -0,0 +1,62 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+
+
+/**
+ * Denotes an exception while writing artifacts inside an SCA contribution.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ContributionWriteException extends ContributionException {
+ private static final long serialVersionUID = -7459051598906813461L;
+ private String resourceURI;
+
+ public ContributionWriteException(String message) {
+ super(message);
+ }
+
+ public ContributionWriteException(String message, Throwable cause) {
+ super(message, cause);
+ }
+
+ public ContributionWriteException(Throwable cause) {
+ super(cause);
+ }
+
+ /**
+ * Returns the location of the resource that was being written.
+ *
+ * @return the location of the resource that was being written
+ */
+ public String getResourceURI() {
+ return resourceURI;
+ }
+
+ /**
+ * Sets the location of the resource that was being written.
+ *
+ * @param resourceURI the location of the resource that was being written
+ */
+ public void setResourceURI(String resourceURI) {
+ this.resourceURI = resourceURI;
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultArtifactProcessorExtensionPoint.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultArtifactProcessorExtensionPoint.java
new file mode 100644
index 0000000000..3c67a8c550
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultArtifactProcessorExtensionPoint.java
@@ -0,0 +1,66 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * The default implementation of an artifact processor extension point.
+ *
+ * @version $Rev$ $Date$
+ */
+abstract class DefaultArtifactProcessorExtensionPoint<P> {
+ protected final Map<Object, P> processorsByArtifactType = new HashMap<Object, P>();
+ protected final Map<Class<?>, P> processorsByModelType = new HashMap<Class<?>, P>();
+
+ /**
+ * Constructs a new loader registry.
+ */
+ DefaultArtifactProcessorExtensionPoint() {
+ }
+
+ /**
+ * Returns the processor associated with the given artifact type.
+ *
+ * @param artifactType An artifact type
+ * @return The processor associated with the given artifact type
+ */
+ public P getProcessor(Object artifactType) {
+ return processorsByArtifactType.get(artifactType);
+ }
+
+ /**
+ * Returns the processor associated with the given model type.
+ *
+ * @param modelType A model type
+ * @return The processor associated with the given model type
+ */
+ public P getProcessor(Class<?> modelType) {
+ Class<?>[] classes = modelType.getInterfaces();
+ for (Class<?> c : classes) {
+ P processor = processorsByModelType.get(c);
+ if (processor != null) {
+ return processor;
+ }
+ }
+ return processorsByModelType.get(modelType);
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultStAXArtifactProcessorExtensionPoint.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultStAXArtifactProcessorExtensionPoint.java
new file mode 100644
index 0000000000..a531eb9ddd
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultStAXArtifactProcessorExtensionPoint.java
@@ -0,0 +1,378 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+import java.io.IOException;
+import java.lang.reflect.Constructor;
+import java.util.Map;
+import java.util.Set;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLOutputFactory;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.extensibility.ServiceDeclaration;
+import org.apache.tuscany.sca.extensibility.ServiceDiscovery;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.MonitorFactory;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+
+/**
+ * The default implementation of an extension point for StAX artifact processors.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultStAXArtifactProcessorExtensionPoint extends
+ DefaultArtifactProcessorExtensionPoint<StAXArtifactProcessor> implements StAXArtifactProcessorExtensionPoint {
+
+ private ExtensionPointRegistry extensionPoints;
+ private FactoryExtensionPoint modelFactories;
+ private MonitorFactory monitorFactory;
+ private boolean loaded;
+ private StAXArtifactProcessor<Object> extensibleStAXProcessor;
+ private StAXAttributeProcessor<Object> extensibleStAXAttributeProcessor;
+ private Monitor monitor = null;
+
+ /**
+ * Constructs a new extension point.
+ */
+ public DefaultStAXArtifactProcessorExtensionPoint(ExtensionPointRegistry extensionPoints) {
+ this.extensionPoints = extensionPoints;
+ this.modelFactories = extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
+ XMLInputFactory inputFactory = modelFactories.getFactory(XMLInputFactory.class);
+ XMLOutputFactory outputFactory = modelFactories.getFactory(XMLOutputFactory.class);
+ UtilityExtensionPoint utilities = this.extensionPoints.getExtensionPoint(UtilityExtensionPoint.class);
+ MonitorFactory monitorFactory = utilities.getUtility(MonitorFactory.class);
+ if (monitorFactory != null)
+ this.monitor = monitorFactory.createMonitor();
+ this.extensibleStAXProcessor = new ExtensibleStAXArtifactProcessor(this, inputFactory, outputFactory, this.monitor);
+
+ StAXAttributeProcessorExtensionPoint attributeExtensionPoint = extensionPoints.getExtensionPoint(StAXAttributeProcessorExtensionPoint.class);
+ this.extensibleStAXAttributeProcessor = new ExtensibleStAXAttributeProcessor(attributeExtensionPoint ,inputFactory, outputFactory, this.monitor);
+ }
+
+ /**
+ * Report a exception.
+ *
+ * @param problems
+ * @param message
+ * @param model
+ */
+ private void error(String message, Object model, Exception ex) {
+ if (monitor != null) {
+ Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-validation-messages", Severity.ERROR, model, message, ex);
+ monitor.problem(problem);
+ }
+ }
+
+ public void addArtifactProcessor(StAXArtifactProcessor artifactProcessor) {
+ if (artifactProcessor.getArtifactType() != null) {
+ processorsByArtifactType.put((Object)artifactProcessor.getArtifactType(), artifactProcessor);
+ }
+ if (artifactProcessor.getModelType() != null) {
+ processorsByModelType.put(artifactProcessor.getModelType(), artifactProcessor);
+ }
+ }
+
+ public void removeArtifactProcessor(StAXArtifactProcessor artifactProcessor) {
+ if (artifactProcessor.getArtifactType() != null) {
+ processorsByArtifactType.remove((Object)artifactProcessor.getArtifactType());
+ }
+ if (artifactProcessor.getModelType() != null) {
+ processorsByModelType.remove(artifactProcessor.getModelType());
+ }
+ }
+
+ @Override
+ public StAXArtifactProcessor getProcessor(Class<?> modelType) {
+ loadArtifactProcessors();
+ return super.getProcessor(modelType);
+ }
+
+ @Override
+ public StAXArtifactProcessor getProcessor(Object artifactType) {
+ loadArtifactProcessors();
+ return super.getProcessor(artifactType);
+ }
+
+ /**
+ * Returns a QName object from a QName expressed as {ns}name
+ * or ns#name.
+ *
+ * @param qname
+ * @return
+ */
+ private static QName getQName(String qname) {
+ if (qname == null) {
+ return null;
+ }
+ qname = qname.trim();
+ if (qname.startsWith("{")) {
+ int h = qname.indexOf('}');
+ if (h != -1) {
+ return new QName(qname.substring(1, h), qname.substring(h + 1));
+ }
+ } else {
+ int h = qname.indexOf('#');
+ if (h != -1) {
+ return new QName(qname.substring(0, h), qname.substring(h + 1));
+ }
+ }
+ throw new IllegalArgumentException("Invalid qname: "+qname);
+ }
+
+ /**
+ * Lazily load artifact processors registered in the extension point.
+ */
+ private synchronized void loadArtifactProcessors() {
+ if (loaded)
+ return;
+
+ // Get the processor service declarations
+ Set<ServiceDeclaration> processorDeclarations;
+ try {
+ processorDeclarations = ServiceDiscovery.getInstance().getServiceDeclarations(StAXArtifactProcessor.class.getName());
+ } catch (IOException e) {
+ IllegalStateException ie = new IllegalStateException(e);
+ error("IllegalStateException", extensibleStAXProcessor, ie);
+ throw ie;
+ }
+
+ for (ServiceDeclaration processorDeclaration : processorDeclarations) {
+ Map<String, String> attributes = processorDeclaration.getAttributes();
+
+ // Load a StAX artifact processor
+
+ // Get the model QName
+ QName artifactType = getQName(attributes.get("qname"));
+
+ // Get the model class name
+ String modelTypeName = attributes.get("model");
+
+ // Get the model factory class name
+ String factoryName = attributes.get("factory");
+
+ // Create a processor wrapper and register it
+ StAXArtifactProcessor processor =
+ new LazyStAXArtifactProcessor(artifactType, modelTypeName, factoryName,
+ processorDeclaration, extensionPoints, modelFactories,
+ extensibleStAXProcessor,extensibleStAXAttributeProcessor, monitor);
+ addArtifactProcessor(processor);
+ }
+
+ loaded = true;
+ }
+
+ /**
+ * A wrapper around an Artifact processor class allowing lazy loading and
+ * initialization of artifact processors.
+ */
+ private static class LazyStAXArtifactProcessor implements StAXArtifactProcessor {
+
+ private ExtensionPointRegistry extensionPoints;
+ private QName artifactType;
+ private String modelTypeName;
+ private String factoryName;
+ private ServiceDeclaration processorDeclaration;
+ private StAXArtifactProcessor processor;
+ private Class<?> modelType;
+ private StAXArtifactProcessor<Object> extensionProcessor;
+ private StAXAttributeProcessor<Object> extensionAttributeProcessor;
+ private Monitor monitor;
+
+ LazyStAXArtifactProcessor(QName artifactType,
+ String modelTypeName,
+ String factoryName,
+ ServiceDeclaration processorDeclaration,
+ ExtensionPointRegistry extensionPoints,
+ FactoryExtensionPoint modelFactories,
+ StAXArtifactProcessor<Object> extensionProcessor,
+ StAXAttributeProcessor<Object> extensionAttributeProcessor,
+ Monitor monitor) {
+
+ this.extensionPoints = extensionPoints;
+ this.artifactType = artifactType;
+ this.modelTypeName = modelTypeName;
+ this.factoryName = factoryName;
+ this.processorDeclaration = processorDeclaration;
+ this.extensionProcessor = extensionProcessor;
+ this.extensionAttributeProcessor = extensionAttributeProcessor;
+ this.monitor = monitor;
+ }
+
+ public QName getArtifactType() {
+ return artifactType;
+ }
+
+ private void error(String message, Object model, Exception ex) {
+ if (monitor != null) {
+ Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-validation-messages", Severity.ERROR, model, message, ex);
+ monitor.problem(problem);
+ }
+ }
+
+ @SuppressWarnings("unchecked")
+ private StAXArtifactProcessor getProcessor() {
+ if (processor == null) {
+
+ if (processorDeclaration.getClassName()
+ .equals("org.apache.tuscany.sca.assembly.xml.DefaultBeanModelProcessor")) {
+
+ // Specific initialization for the DefaultBeanModelProcessor
+ FactoryExtensionPoint modelFactories = extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
+ try {
+ Class<StAXArtifactProcessor> processorClass =
+ (Class<StAXArtifactProcessor>)processorDeclaration.loadClass();
+ Object modelFactory;
+ if (factoryName != null) {
+ Class<?> factoryClass = (Class<?>)processorDeclaration.loadClass(factoryName);
+ modelFactory = modelFactories.getFactory(factoryClass);
+ } else {
+ modelFactory = null;
+ }
+ Constructor<StAXArtifactProcessor> constructor =
+ processorClass.getConstructor(FactoryExtensionPoint.class,
+ QName.class,
+ Class.class,
+ Object.class,
+ Monitor.class);
+ processor =
+ constructor.newInstance(modelFactories,
+ artifactType,
+ getModelType(),
+ modelFactory,
+ monitor);
+ } catch (Exception e) {
+ IllegalStateException ie = new IllegalStateException(e);
+ error("IllegalStateException", processor, ie);
+ throw ie;
+ }
+ } else {
+ FactoryExtensionPoint modelFactories = extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
+
+ // Load and instantiate the processor class
+ try {
+ Class<StAXArtifactProcessor> processorClass =
+ (Class<StAXArtifactProcessor>)processorDeclaration.loadClass();
+ try {
+ Constructor<StAXArtifactProcessor> constructor =
+ processorClass.getConstructor(FactoryExtensionPoint.class, Monitor.class);
+ processor = constructor.newInstance(modelFactories, monitor);
+ } catch (NoSuchMethodException e) {
+ try {
+ Constructor<StAXArtifactProcessor> constructor =
+ processorClass.getConstructor(ExtensionPointRegistry.class, Monitor.class);
+ processor = constructor.newInstance(extensionPoints, monitor);
+ } catch (NoSuchMethodException e1) {
+ try {
+ Constructor<StAXArtifactProcessor> constructor =
+ processorClass.getConstructor(FactoryExtensionPoint.class, StAXArtifactProcessor.class, Monitor.class);
+ processor = constructor.newInstance(modelFactories, extensionProcessor, monitor);
+ } catch (NoSuchMethodException e2) {
+ try {
+ Constructor<StAXArtifactProcessor> constructor =
+ processorClass.getConstructor(FactoryExtensionPoint.class, StAXArtifactProcessor.class, StAXAttributeProcessor.class, Monitor.class);
+ processor = constructor.newInstance(modelFactories, extensionProcessor, extensionAttributeProcessor, monitor);
+ } catch (NoSuchMethodException e2a) {
+ try {
+ Constructor<StAXArtifactProcessor> constructor =
+ processorClass.getConstructor(ExtensionPointRegistry.class, StAXArtifactProcessor.class, Monitor.class);
+ processor = constructor.newInstance(extensionPoints, extensionProcessor, monitor);
+ } catch (NoSuchMethodException e3) {
+ try {
+ Constructor<StAXArtifactProcessor> constructor =
+ processorClass.getConstructor(ExtensionPointRegistry.class, StAXArtifactProcessor.class, StAXAttributeProcessor.class, Monitor.class);
+ processor = constructor.newInstance(extensionPoints, extensionProcessor, extensionAttributeProcessor, monitor);
+ } catch (NoSuchMethodException e3a) {
+
+ try {
+ Constructor<StAXArtifactProcessor> constructor =
+ processorClass.getConstructor(FactoryExtensionPoint.class);
+ processor = constructor.newInstance(modelFactories);
+ } catch (NoSuchMethodException e4) {
+ try {
+ Constructor<StAXArtifactProcessor> constructor =
+ processorClass.getConstructor(ExtensionPointRegistry.class);
+ processor = constructor.newInstance(extensionPoints);
+ } catch (NoSuchMethodException e4a) {
+ try {
+ Constructor<StAXArtifactProcessor> constructor =
+ processorClass.getConstructor(FactoryExtensionPoint.class, StAXArtifactProcessor.class);
+ processor = constructor.newInstance(modelFactories, extensionProcessor);
+ } catch (NoSuchMethodException e5) {
+ Constructor<StAXArtifactProcessor> constructor =
+ processorClass.getConstructor(ExtensionPointRegistry.class, StAXArtifactProcessor.class);
+ processor = constructor.newInstance(extensionPoints, extensionProcessor);
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ } catch (Exception e) {
+ IllegalStateException ie = new IllegalStateException(e);
+ error("IllegalStateException", processor, ie);
+ throw ie;
+ }
+ }
+ }
+ return processor;
+ }
+
+ public Object read(XMLStreamReader inputSource) throws ContributionReadException, XMLStreamException {
+ return getProcessor().read(inputSource);
+ }
+
+ @SuppressWarnings("unchecked")
+ public void write(Object model, XMLStreamWriter outputSource) throws ContributionWriteException,
+ XMLStreamException {
+ getProcessor().write(model, outputSource);
+ }
+
+ public Class<?> getModelType() {
+ if (modelTypeName != null && modelType == null) {
+ try {
+ modelType = processorDeclaration.loadClass(modelTypeName);
+ } catch (Exception e) {
+ IllegalStateException ie = new IllegalStateException(e);
+ error("IllegalStateException", processorDeclaration, ie);
+ throw ie;
+ }
+ }
+ return modelType;
+ }
+
+ @SuppressWarnings("unchecked")
+ public void resolve(Object model, ModelResolver resolver) throws ContributionResolveException {
+ getProcessor().resolve(model, resolver);
+ }
+
+ }
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultStAXAttributeProcessorExtensionPoint.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultStAXAttributeProcessorExtensionPoint.java
new file mode 100644
index 0000000000..3cdcddc976
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultStAXAttributeProcessorExtensionPoint.java
@@ -0,0 +1,323 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+import java.io.IOException;
+import java.lang.reflect.Constructor;
+import java.util.Map;
+import java.util.Set;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLOutputFactory;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.extensibility.ServiceDeclaration;
+import org.apache.tuscany.sca.extensibility.ServiceDiscovery;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.MonitorFactory;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+
+/**
+ * The default implementation of an extension point for StAX artifact processors.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultStAXAttributeProcessorExtensionPoint extends
+ DefaultArtifactProcessorExtensionPoint<StAXAttributeProcessor> implements StAXAttributeProcessorExtensionPoint {
+
+ private ExtensionPointRegistry extensionPoints;
+ private FactoryExtensionPoint modelFactories;
+ private StAXAttributeProcessor<Object> extensibleStAXAttributeProcessor;
+ private boolean loaded;
+ private Monitor monitor = null;
+
+ /**
+ * Constructs a new extension point.
+ */
+ public DefaultStAXAttributeProcessorExtensionPoint(ExtensionPointRegistry extensionPoints) {
+ this.extensionPoints = extensionPoints;
+ this.modelFactories = extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
+ XMLInputFactory inputFactory = modelFactories.getFactory(XMLInputFactory.class);
+ XMLOutputFactory outputFactory = modelFactories.getFactory(XMLOutputFactory.class);
+ UtilityExtensionPoint utilities = this.extensionPoints.getExtensionPoint(UtilityExtensionPoint.class);
+ MonitorFactory monitorFactory = utilities.getUtility(MonitorFactory.class);
+ if (monitorFactory != null) {
+ this.monitor = monitorFactory.createMonitor();
+ }
+ this.extensibleStAXAttributeProcessor = new ExtensibleStAXAttributeProcessor(this, inputFactory, outputFactory, this.monitor);
+ }
+
+ /**
+ * Report a exception.
+ *
+ * @param problems
+ * @param message
+ * @param model
+ */
+ private void error(String message, Object model, Exception ex) {
+ if (monitor != null) {
+ Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-validation-messages", Severity.ERROR, model, message, ex);
+ monitor.problem(problem);
+ }
+ }
+
+ public void addArtifactProcessor(StAXAttributeProcessor artifactProcessor) {
+ if (artifactProcessor.getArtifactType() != null) {
+ processorsByArtifactType.put((Object)artifactProcessor.getArtifactType(), artifactProcessor);
+ }
+ if (artifactProcessor.getModelType() != null) {
+ processorsByModelType.put(artifactProcessor.getModelType(), artifactProcessor);
+ }
+ }
+
+ public void removeArtifactProcessor(StAXAttributeProcessor artifactProcessor) {
+ if (artifactProcessor.getArtifactType() != null) {
+ processorsByArtifactType.remove((Object)artifactProcessor.getArtifactType());
+ }
+ if (artifactProcessor.getModelType() != null) {
+ processorsByModelType.remove(artifactProcessor.getModelType());
+ }
+ }
+
+ @Override
+ public StAXAttributeProcessor getProcessor(Class<?> modelType) {
+ loadArtifactProcessors();
+ return super.getProcessor(modelType);
+ }
+
+ @Override
+ public StAXAttributeProcessor getProcessor(Object artifactType) {
+ loadArtifactProcessors();
+ return super.getProcessor(artifactType);
+ }
+
+ /**
+ * Returns a QName object from a QName expressed as {ns}name
+ * or ns#name.
+ *
+ * @param qname
+ * @return
+ */
+ private static QName getQName(String qname) {
+ if (qname == null) {
+ return null;
+ }
+ qname = qname.trim();
+ if (qname.startsWith("{")) {
+ int h = qname.indexOf('}');
+ if (h != -1) {
+ return new QName(qname.substring(1, h), qname.substring(h + 1));
+ }
+ } else {
+ int h = qname.indexOf('#');
+ if (h != -1) {
+ return new QName(qname.substring(0, h), qname.substring(h + 1));
+ }
+ }
+ throw new IllegalArgumentException("Invalid qname: "+qname);
+ }
+
+ /**
+ * Lazily load artifact processors registered in the extension point.
+ */
+ private synchronized void loadArtifactProcessors() {
+ if (loaded)
+ return;
+
+ // Get the processor service declarations
+ Set<ServiceDeclaration> processorDeclarations;
+ try {
+ processorDeclarations = ServiceDiscovery.getInstance().getServiceDeclarations(StAXAttributeProcessor.class.getName());
+ } catch (IOException e) {
+ IllegalStateException ie = new IllegalStateException(e);
+ error("IllegalStateException", extensibleStAXAttributeProcessor, ie);
+ throw ie;
+ }
+
+ for (ServiceDeclaration processorDeclaration : processorDeclarations) {
+ Map<String, String> attributes = processorDeclaration.getAttributes();
+
+ // Load a StAX artifact processor
+
+ // Get the model QName
+ QName artifactType = getQName(attributes.get("qname"));
+
+ // Get the model class name
+ String modelTypeName = attributes.get("model");
+
+ // Get the model factory class name
+ String factoryName = attributes.get("factory");
+
+ // Create a processor wrapper and register it
+ StAXAttributeProcessor processor =
+ new LazyStAXAttributeProcessor(artifactType, modelTypeName, factoryName,
+ processorDeclaration, extensionPoints, modelFactories,
+ extensibleStAXAttributeProcessor, monitor);
+ addArtifactProcessor(processor);
+ }
+
+ loaded = true;
+ }
+
+ /**
+ * A wrapper around an Artifact processor class allowing lazy loading and
+ * initialization of artifact processors.
+ */
+ private static class LazyStAXAttributeProcessor implements StAXAttributeProcessor {
+
+ private ExtensionPointRegistry extensionPoints;
+ private QName artifactType;
+ private String modelTypeName;
+ private String factoryName;
+ private ServiceDeclaration processorDeclaration;
+ private StAXAttributeProcessor processor;
+ private Class<?> modelType;
+ private StAXAttributeProcessor<Object> extensionProcessor;
+ private Monitor monitor;
+
+ LazyStAXAttributeProcessor(QName artifactType,
+ String modelTypeName,
+ String factoryName,
+ ServiceDeclaration processorDeclaration,
+ ExtensionPointRegistry extensionPoints,
+ FactoryExtensionPoint modelFactories,
+ StAXAttributeProcessor<Object> extensionProcessor,
+ Monitor monitor) {
+
+ this.extensionPoints = extensionPoints;
+ this.artifactType = artifactType;
+ this.modelTypeName = modelTypeName;
+ this.factoryName = factoryName;
+ this.processorDeclaration = processorDeclaration;
+ this.extensionProcessor = extensionProcessor;
+ this.monitor = monitor;
+ }
+
+ public QName getArtifactType() {
+ return artifactType;
+ }
+
+ private void error(String message, Object model, Exception ex) {
+ if (monitor != null) {
+ Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-validation-messages", Severity.ERROR, model, message, ex);
+ monitor.problem(problem);
+ }
+ }
+
+ @SuppressWarnings("unchecked")
+ private StAXAttributeProcessor getProcessor() {
+ if (processor == null) {
+ FactoryExtensionPoint modelFactories = extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
+
+ // Load and instantiate the processor class
+ try {
+ Class<StAXAttributeProcessor> processorClass =
+ (Class<StAXAttributeProcessor>)processorDeclaration.loadClass();
+ try {
+ Constructor<StAXAttributeProcessor> constructor =
+ processorClass.getConstructor(FactoryExtensionPoint.class, Monitor.class);
+ processor = constructor.newInstance(modelFactories, monitor);
+ } catch (NoSuchMethodException e) {
+ try {
+ Constructor<StAXAttributeProcessor> constructor =
+ processorClass.getConstructor(ExtensionPointRegistry.class, Monitor.class);
+ processor = constructor.newInstance(extensionPoints, monitor);
+ } catch (NoSuchMethodException e1) {
+ try {
+ Constructor<StAXAttributeProcessor> constructor =
+ processorClass.getConstructor(FactoryExtensionPoint.class, StAXArtifactProcessor.class, Monitor.class);
+ processor = constructor.newInstance(modelFactories, extensionProcessor, monitor);
+ } catch (NoSuchMethodException e2) {
+ try {
+ Constructor<StAXAttributeProcessor> constructor =
+ processorClass.getConstructor(ExtensionPointRegistry.class, StAXArtifactProcessor.class, Monitor.class);
+ processor = constructor.newInstance(extensionPoints, extensionProcessor, monitor);
+ } catch (NoSuchMethodException e3) {
+ try {
+ Constructor<StAXAttributeProcessor> constructor =
+ processorClass.getConstructor(FactoryExtensionPoint.class);
+ processor = constructor.newInstance(modelFactories);
+ } catch (NoSuchMethodException e4) {
+ try {
+ Constructor<StAXAttributeProcessor> constructor =
+ processorClass.getConstructor(ExtensionPointRegistry.class);
+ processor = constructor.newInstance(extensionPoints);
+ } catch (NoSuchMethodException e4a) {
+ try {
+ Constructor<StAXAttributeProcessor> constructor =
+ processorClass.getConstructor(FactoryExtensionPoint.class, StAXArtifactProcessor.class);
+ processor = constructor.newInstance(modelFactories, extensionProcessor);
+ } catch (NoSuchMethodException e5) {
+ Constructor<StAXAttributeProcessor> constructor =
+ processorClass.getConstructor(ExtensionPointRegistry.class, StAXArtifactProcessor.class);
+ processor = constructor.newInstance(extensionPoints, extensionProcessor);
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ } catch (Exception e) {
+ IllegalStateException ie = new IllegalStateException(e);
+ error("IllegalStateException", processor, ie);
+ throw ie;
+ }
+
+ }
+ return processor;
+ }
+
+ public Object read(QName attributeName, XMLStreamReader inputSource) throws ContributionReadException, XMLStreamException {
+ return getProcessor().read(attributeName, inputSource);
+ }
+
+ @SuppressWarnings("unchecked")
+ public void write(Object model, XMLStreamWriter outputSource) throws ContributionWriteException, XMLStreamException {
+ getProcessor().write(model, outputSource);
+ }
+
+ public Class<?> getModelType() {
+ if (modelTypeName != null && modelType == null) {
+ try {
+ modelType = processorDeclaration.loadClass(modelTypeName);
+ } catch (Exception e) {
+ IllegalStateException ie = new IllegalStateException(e);
+ error("IllegalStateException", processorDeclaration, ie);
+ throw ie;
+ }
+ }
+ return modelType;
+ }
+
+ @SuppressWarnings("unchecked")
+ public void resolve(Object model, ModelResolver resolver) throws ContributionResolveException {
+ getProcessor().resolve(model, resolver);
+ }
+
+ }
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultURLArtifactProcessorExtensionPoint.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultURLArtifactProcessorExtensionPoint.java
new file mode 100644
index 0000000000..86206d4ab2
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultURLArtifactProcessorExtensionPoint.java
@@ -0,0 +1,239 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+import java.io.IOException;
+import java.lang.reflect.Constructor;
+import java.net.URI;
+import java.net.URL;
+import java.util.Map;
+import java.util.Set;
+
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLOutputFactory;
+
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.extensibility.ServiceDeclaration;
+import org.apache.tuscany.sca.extensibility.ServiceDiscovery;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.MonitorFactory;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+
+
+/**
+ * The default implementation of a URL artifact processor extension point.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultURLArtifactProcessorExtensionPoint
+ extends DefaultArtifactProcessorExtensionPoint<URLArtifactProcessor>
+ implements URLArtifactProcessorExtensionPoint {
+
+ private ExtensionPointRegistry extensionPoints;
+ private StAXArtifactProcessor<?> staxProcessor;
+ private boolean loaded;
+ private Monitor monitor = null;
+
+ /**
+ * Constructs a new extension point.
+ */
+ public DefaultURLArtifactProcessorExtensionPoint(ExtensionPointRegistry extensionPoints) {
+ this.extensionPoints = extensionPoints;
+ FactoryExtensionPoint modelFactories = this.extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
+ XMLInputFactory inputFactory = modelFactories.getFactory(XMLInputFactory.class);
+ XMLOutputFactory outputFactory = modelFactories.getFactory(XMLOutputFactory.class);
+ UtilityExtensionPoint utilities = this.extensionPoints.getExtensionPoint(UtilityExtensionPoint.class);
+ MonitorFactory monitorFactory = utilities.getUtility(MonitorFactory.class);
+ if (monitorFactory != null)
+ this.monitor = monitorFactory.createMonitor();
+ StAXArtifactProcessorExtensionPoint staxProcessors = extensionPoints.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
+ staxProcessor = new ExtensibleStAXArtifactProcessor(staxProcessors, inputFactory, outputFactory, this.monitor);
+ }
+
+ /**
+ * Report a exception.
+ *
+ * @param problems
+ * @param message
+ * @param model
+ */
+ private void error(String message, Object model, Exception ex) {
+ if (monitor != null) {
+ Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-validation-messages", Severity.ERROR, model, message, ex);
+ monitor.problem(problem);
+ }
+ }
+
+ public void addArtifactProcessor(URLArtifactProcessor artifactProcessor) {
+ if (artifactProcessor.getArtifactType() != null) {
+ processorsByArtifactType.put((Object)artifactProcessor.getArtifactType(), artifactProcessor);
+ }
+ if (artifactProcessor.getModelType() != null) {
+ processorsByModelType.put(artifactProcessor.getModelType(), artifactProcessor);
+ }
+ }
+
+ public void removeArtifactProcessor(URLArtifactProcessor artifactProcessor) {
+ if (artifactProcessor.getArtifactType() != null) {
+ processorsByArtifactType.remove((Object)artifactProcessor.getArtifactType());
+ }
+ if (artifactProcessor.getModelType() != null) {
+ processorsByModelType.remove(artifactProcessor.getModelType());
+ }
+ }
+
+ @Override
+ public URLArtifactProcessor getProcessor(Class<?> modelType) {
+ loadProcessors();
+ return super.getProcessor(modelType);
+ }
+
+ @Override
+ public URLArtifactProcessor getProcessor(Object artifactType) {
+ loadProcessors();
+ return super.getProcessor(artifactType);
+ }
+
+ /**
+ * Lazily load artifact processors registered in the extension point.
+ */
+ private synchronized void loadProcessors() {
+ if (loaded)
+ return;
+
+ // Get the processor service declarations
+ Set<ServiceDeclaration> processorDeclarations;
+ try {
+ processorDeclarations = ServiceDiscovery.getInstance().getServiceDeclarations(URLArtifactProcessor.class.getName());
+ } catch (IOException e) {
+ IllegalStateException ie = new IllegalStateException(e);
+ error("IllegalStateException", staxProcessor, ie);
+ throw ie;
+ }
+
+ for (ServiceDeclaration processorDeclaration: processorDeclarations) {
+ Map<String, String> attributes = processorDeclaration.getAttributes();
+ // Load a URL artifact processor
+ String artifactType = attributes.get("type");
+ String modelTypeName = attributes.get("model");
+
+ // Create a processor wrapper and register it
+ URLArtifactProcessor processor = new LazyURLArtifactProcessor(artifactType, modelTypeName,
+ processorDeclaration, extensionPoints, staxProcessor, monitor);
+ addArtifactProcessor(processor);
+ }
+
+ loaded = true;
+ }
+
+ /**
+ * A wrapper around an Artifact processor class allowing lazy loading and
+ * initialization of artifact processors.
+ */
+ private static class LazyURLArtifactProcessor implements URLArtifactProcessor {
+
+ private ExtensionPointRegistry extensionPoints;
+ private String artifactType;
+ private String modelTypeName;
+ private ServiceDeclaration processorDeclaration;
+ private URLArtifactProcessor processor;
+ private Class<?> modelType;
+ private StAXArtifactProcessor<?> staxProcessor;
+ private Monitor monitor;
+
+ LazyURLArtifactProcessor(String artifactType,
+ String modelTypeName,
+ ServiceDeclaration processorDeclaration,
+ ExtensionPointRegistry extensionPoints,
+ StAXArtifactProcessor<?> staxProcessor,
+ Monitor monitor) {
+ this.artifactType = artifactType;
+ this.modelTypeName = modelTypeName;
+ this.processorDeclaration = processorDeclaration;
+ this.extensionPoints = extensionPoints;
+ this.staxProcessor = staxProcessor;
+ this.monitor = monitor;
+ }
+
+ public String getArtifactType() {
+ return artifactType;
+ }
+
+ private void error(String message, Object model, Exception ex) {
+ if (monitor != null) {
+ Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-validation-messages", Severity.ERROR, model, message, ex);
+ monitor.problem(problem);
+ }
+ }
+
+ @SuppressWarnings("unchecked")
+ private URLArtifactProcessor getProcessor() {
+ if (processor == null) {
+ try {
+ FactoryExtensionPoint modelFactories = extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
+ Class<URLArtifactProcessor> processorClass = (Class<URLArtifactProcessor>)processorDeclaration.loadClass();
+ try {
+ Constructor<URLArtifactProcessor> constructor = processorClass.getConstructor(FactoryExtensionPoint.class, Monitor.class);
+ processor = constructor.newInstance(modelFactories, monitor);
+ } catch (NoSuchMethodException e) {
+ try {
+ Constructor<URLArtifactProcessor> constructor = processorClass.getConstructor(FactoryExtensionPoint.class, StAXArtifactProcessor.class, Monitor.class);
+ processor = constructor.newInstance(modelFactories, staxProcessor, monitor);
+ } catch (NoSuchMethodException e2) {
+ Constructor<URLArtifactProcessor> constructor = processorClass.getConstructor(ExtensionPointRegistry.class, StAXArtifactProcessor.class, Monitor.class);
+ processor = constructor.newInstance(extensionPoints, staxProcessor, monitor);
+ }
+ }
+ } catch (Exception e) {
+ IllegalStateException ie = new IllegalStateException(e);
+ error("IllegalStateException", processor, ie);
+ throw ie;
+ }
+ }
+ return processor;
+ }
+
+ public Object read(URL contributionURL, URI artifactURI, URL artifactURL) throws ContributionReadException {
+ return getProcessor().read(contributionURL, artifactURI, artifactURL);
+ }
+
+ public Class<?> getModelType() {
+ if (modelTypeName != null && modelType == null) {
+ try {
+ modelType = processorDeclaration.loadClass(modelTypeName);
+ } catch (ClassNotFoundException e) {
+ IllegalStateException ie = new IllegalStateException(e);
+ error("IllegalStateException", processorDeclaration, ie);
+ throw ie;
+ }
+ }
+ return modelType;
+ }
+
+ @SuppressWarnings("unchecked")
+ public void resolve(Object model, ModelResolver resolver) throws ContributionResolveException {
+ getProcessor().resolve(model, resolver);
+ }
+
+ }
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultValidatingXMLInputFactory.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultValidatingXMLInputFactory.java
new file mode 100644
index 0000000000..9258a837d8
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultValidatingXMLInputFactory.java
@@ -0,0 +1,325 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.processor;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.Reader;
+import java.net.URL;
+import java.net.URLConnection;
+import java.security.AccessController;
+import java.security.PrivilegedActionException;
+import java.security.PrivilegedExceptionAction;
+import java.util.List;
+
+import javax.xml.XMLConstants;
+import javax.xml.stream.EventFilter;
+import javax.xml.stream.StreamFilter;
+import javax.xml.stream.XMLEventReader;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLReporter;
+import javax.xml.stream.XMLResolver;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.util.XMLEventAllocator;
+import javax.xml.transform.Source;
+import javax.xml.transform.stream.StreamSource;
+import javax.xml.validation.Schema;
+import javax.xml.validation.SchemaFactory;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.MonitorFactory;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+import org.xml.sax.SAXException;
+import org.xml.sax.SAXParseException;
+
+/**
+ * Default implementation of an XMLInputFactory that creates validating
+ * XMLStreamReaders.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultValidatingXMLInputFactory extends ValidatingXMLInputFactory {
+
+ private XMLInputFactory inputFactory;
+ private ValidationSchemaExtensionPoint schemas;
+ private Monitor monitor;
+ private boolean initialized;
+ private boolean hasSchemas;
+ private Schema aggregatedSchema;
+
+ public DefaultValidatingXMLInputFactory(ExtensionPointRegistry registry) {
+ FactoryExtensionPoint factoryExtensionPoint = registry.getExtensionPoint(FactoryExtensionPoint.class);
+ XMLInputFactory factory = factoryExtensionPoint.getFactory(XMLInputFactory.class);
+ this.inputFactory = factory;
+ this.schemas = registry.getExtensionPoint(ValidationSchemaExtensionPoint.class);
+ this.monitor =
+ registry.getExtensionPoint(UtilityExtensionPoint.class).getUtility(MonitorFactory.class).createMonitor();
+ }
+
+ /**
+ * Constructs a new XMLInputFactory.
+ *
+ * @param inputFactory
+ * @param schemas
+ */
+ public DefaultValidatingXMLInputFactory(XMLInputFactory inputFactory, ValidationSchemaExtensionPoint schemas, Monitor monitor) {
+ this.inputFactory = inputFactory;
+ this.schemas = schemas;
+ this.monitor = monitor;
+ }
+
+ /**
+ * Report a exception.
+ *
+ * @param problems
+ * @param message
+ * @param model
+ */
+ private void error(String message, Object model, Exception ex) {
+ if (monitor != null) {
+ Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-validation-messages", Severity.ERROR, model, message, ex);
+ monitor.problem(problem);
+ }
+ }
+
+ /**
+ * Initialize the registered schemas and create an aggregated schema for
+ * validation.
+ */
+ private void initializeSchemas() {
+ if (initialized) {
+ return;
+ }
+ initialized = true;
+
+ // Load the XSDs registered in the validation schema extension point
+ try {
+ List<String> uris = schemas.getSchemas();
+ int n = uris.size();
+ if (n ==0) {
+ return;
+ } else {
+ hasSchemas = true;
+ }
+ final Source[] sources = new Source[n];
+ for (int i =0; i < n; i++) {
+ final String uri = uris.get(i);
+ // Allow privileged access to open URL stream. Requires FilePermission in security policy.
+ final URL url = new URL( uri );
+ InputStream urlStream;
+ try {
+ urlStream = AccessController.doPrivileged(new PrivilegedExceptionAction<InputStream>() {
+ public InputStream run() throws IOException {
+ URLConnection connection = url.openConnection();
+ connection.setUseCaches(false);
+ return connection.getInputStream();
+ }
+ });
+ } catch (PrivilegedActionException e) {
+ error("PrivilegedActionException", url, (IOException)e.getException());
+ throw (IOException)e.getException();
+ }
+ sources[i] = new StreamSource(urlStream, uri);
+ }
+
+ // Create an aggregated validation schemas from all the XSDs
+ final SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
+ // Allow privileged access to check files. Requires FilePermission
+ // in security policy.
+ try {
+ aggregatedSchema = AccessController.doPrivileged(new PrivilegedExceptionAction<Schema>() {
+ public Schema run() throws SAXException {
+ return schemaFactory.newSchema(sources);
+ }
+ });
+ } catch (PrivilegedActionException e) {
+ error("PrivilegedActionException", schemaFactory, (SAXException)e.getException());
+ throw (SAXException)e.getException();
+ }
+
+ } catch (Error e) {
+ // FIXME Log this, some old JDKs don't support XMLSchema validation
+ //e.printStackTrace();
+ } catch (SAXParseException e) {
+ IllegalStateException ie = new IllegalStateException(e);
+ error("IllegalStateException", schemas, ie);
+ throw ie;
+ } catch (Exception e) {
+ //FIXME Log this, some old JDKs don't support XMLSchema validation
+ e.printStackTrace();
+ }
+ }
+
+ @Override
+ public XMLEventReader createFilteredReader(XMLEventReader arg0, EventFilter arg1) throws XMLStreamException {
+ return inputFactory.createFilteredReader(arg0, arg1);
+ }
+
+ @Override
+ public XMLStreamReader createFilteredReader(XMLStreamReader arg0, StreamFilter arg1) throws XMLStreamException {
+ return inputFactory.createFilteredReader(arg0, arg1);
+ }
+
+ @Override
+ public XMLEventReader createXMLEventReader(InputStream arg0, String arg1) throws XMLStreamException {
+ return inputFactory.createXMLEventReader(arg0, arg1);
+ }
+
+ @Override
+ public XMLEventReader createXMLEventReader(InputStream arg0) throws XMLStreamException {
+ return inputFactory.createXMLEventReader(arg0);
+ }
+
+ @Override
+ public XMLEventReader createXMLEventReader(Reader arg0) throws XMLStreamException {
+ return inputFactory.createXMLEventReader(arg0);
+ }
+
+ @Override
+ public XMLEventReader createXMLEventReader(Source arg0) throws XMLStreamException {
+ return inputFactory.createXMLEventReader(arg0);
+ }
+
+ @Override
+ public XMLEventReader createXMLEventReader(String arg0, InputStream arg1) throws XMLStreamException {
+ return inputFactory.createXMLEventReader(arg0, arg1);
+ }
+
+ @Override
+ public XMLEventReader createXMLEventReader(String arg0, Reader arg1) throws XMLStreamException {
+ return inputFactory.createXMLEventReader(arg0, arg1);
+ }
+
+ @Override
+ public XMLEventReader createXMLEventReader(XMLStreamReader arg0) throws XMLStreamException {
+ return inputFactory.createXMLEventReader(arg0);
+ }
+
+ @Override
+ public XMLStreamReader createXMLStreamReader(InputStream arg0, String arg1) throws XMLStreamException {
+ initializeSchemas();
+ if (hasSchemas) {
+ return new ValidatingXMLStreamReader(inputFactory.createXMLStreamReader(arg0, arg1), aggregatedSchema, monitor);
+ }else {
+ return inputFactory.createXMLStreamReader(arg0, arg1);
+ }
+ }
+
+ @Override
+ public XMLStreamReader createXMLStreamReader(InputStream arg0) throws XMLStreamException {
+ initializeSchemas();
+ if (hasSchemas) {
+ return new ValidatingXMLStreamReader(inputFactory.createXMLStreamReader(arg0), aggregatedSchema, monitor);
+ } else {
+ return inputFactory.createXMLStreamReader(arg0);
+ }
+ }
+
+ @Override
+ public XMLStreamReader createXMLStreamReader(Reader arg0) throws XMLStreamException {
+ initializeSchemas();
+ if (hasSchemas) {
+ return new ValidatingXMLStreamReader(inputFactory.createXMLStreamReader(arg0), aggregatedSchema, monitor);
+ } else {
+ return inputFactory.createXMLStreamReader(arg0);
+ }
+ }
+
+ @Override
+ public XMLStreamReader createXMLStreamReader(Source arg0) throws XMLStreamException {
+ initializeSchemas();
+ if (hasSchemas) {
+ return new ValidatingXMLStreamReader(inputFactory.createXMLStreamReader(arg0), aggregatedSchema, monitor);
+ } else {
+ return inputFactory.createXMLStreamReader(arg0);
+ }
+ }
+
+ @Override
+ public XMLStreamReader createXMLStreamReader(String arg0, InputStream arg1) throws XMLStreamException {
+ initializeSchemas();
+ if (hasSchemas) {
+ return new ValidatingXMLStreamReader(inputFactory.createXMLStreamReader(arg0, arg1), aggregatedSchema, monitor);
+ } else {
+ return inputFactory.createXMLStreamReader(arg0, arg1);
+ }
+ }
+
+ @Override
+ public XMLStreamReader createXMLStreamReader(String arg0, Reader arg1) throws XMLStreamException {
+ initializeSchemas();
+ if (hasSchemas) {
+ return new ValidatingXMLStreamReader(inputFactory.createXMLStreamReader(arg0, arg1), aggregatedSchema, monitor);
+ } else {
+ return inputFactory.createXMLStreamReader(arg0, arg1);
+ }
+ }
+
+ @Override
+ public XMLEventAllocator getEventAllocator() {
+ return inputFactory.getEventAllocator();
+ }
+
+ @Override
+ public Object getProperty(String arg0) throws IllegalArgumentException {
+ return inputFactory.getProperty(arg0);
+ }
+
+ @Override
+ public XMLReporter getXMLReporter() {
+ return inputFactory.getXMLReporter();
+ }
+
+ @Override
+ public XMLResolver getXMLResolver() {
+ return inputFactory.getXMLResolver();
+ }
+
+ @Override
+ public boolean isPropertySupported(String arg0) {
+ return inputFactory.isPropertySupported(arg0);
+ }
+
+ @Override
+ public void setEventAllocator(XMLEventAllocator arg0) {
+ inputFactory.setEventAllocator(arg0);
+ }
+
+ @Override
+ public void setProperty(String arg0, Object arg1) throws IllegalArgumentException {
+ inputFactory.setProperty(arg0, arg1);
+ }
+
+ @Override
+ public void setXMLReporter(XMLReporter arg0) {
+ inputFactory.setXMLReporter(arg0);
+ }
+
+ @Override
+ public void setXMLResolver(XMLResolver arg0) {
+ inputFactory.setXMLResolver(arg0);
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultValidationSchemaExtensionPoint.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultValidationSchemaExtensionPoint.java
new file mode 100644
index 0000000000..9f4094aa12
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultValidationSchemaExtensionPoint.java
@@ -0,0 +1,95 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.processor;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+
+import org.apache.tuscany.sca.extensibility.ServiceDeclaration;
+import org.apache.tuscany.sca.extensibility.ServiceDiscovery;
+
+/**
+ * Default implementation of an extension point for XML schemas.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultValidationSchemaExtensionPoint implements ValidationSchemaExtensionPoint {
+
+ private List<String> schemas = new ArrayList<String>();
+ private boolean loaded;
+
+ public void addSchema(String uri) {
+ schemas.add(uri);
+ }
+
+ public void removeSchema(String uri) {
+ schemas.remove(uri);
+ }
+
+ /**
+ * Load schema declarations from META-INF/services/
+ * org.apache.tuscany.sca.contribution.processor.ValidationSchema files
+ */
+ private synchronized void loadSchemas() {
+ if (loaded)
+ return;
+
+ // Get the schema declarations
+ Set<ServiceDeclaration> schemaDeclarations;
+ try {
+ schemaDeclarations = ServiceDiscovery.getInstance().getServiceDeclarations("org.apache.tuscany.sca.contribution.processor.ValidationSchema");
+ } catch (IOException e) {
+ throw new IllegalStateException(e);
+ }
+
+ // TODO - temp fix to ensure that the schema tuscany-sca.xsd always comes first
+ String tuscanyScaXsd = null;
+
+ // Find each schema
+ for (ServiceDeclaration schemaDeclaration: schemaDeclarations) {
+ URL url = schemaDeclaration.getResource(schemaDeclaration.getClassName());
+ if (url == null) {
+ throw new IllegalArgumentException(new FileNotFoundException(schemaDeclaration.getClassName()));
+ }
+
+ if (url.toString().contains("tuscany-sca.xsd")){
+ tuscanyScaXsd = url.toString();
+ } else {
+ schemas.add(url.toString());
+ }
+ }
+
+ if (tuscanyScaXsd != null){
+ schemas.add(0, tuscanyScaXsd);
+ }
+
+ loaded = true;
+ }
+
+ public List<String> getSchemas() {
+ loadSchemas();
+ return schemas;
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ExtensibleStAXArtifactProcessor.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ExtensibleStAXArtifactProcessor.java
new file mode 100644
index 0000000000..7578a24ea8
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ExtensibleStAXArtifactProcessor.java
@@ -0,0 +1,258 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.Location;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLOutputFactory;
+import javax.xml.stream.XMLStreamConstants;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.contribution.Constants;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+
+/**
+ * Implementation of an extensible StAX artifact processor.
+ *
+ * Takes a StAXArtifactProcessorExtensionPoint and delegates to the proper
+ * StAXArtifactProcessor by element QName
+ *
+ * @version $Rev$ $Date$
+ */
+public class ExtensibleStAXArtifactProcessor implements StAXArtifactProcessor<Object> {
+ private static final Logger logger = Logger.getLogger(ExtensibleStAXArtifactProcessor.class.getName());
+
+ private static final QName ANY_ELEMENT = new QName(Constants.XMLSCHEMA_NS, "anyElement");
+
+ private XMLInputFactory inputFactory;
+ private XMLOutputFactory outputFactory;
+ private StAXArtifactProcessorExtensionPoint processors;
+ private Monitor monitor;
+
+ /**
+ * Constructs a new ExtensibleStAXArtifactProcessor.
+ * @param processors
+ * @param inputFactory
+ * @param outputFactory
+ */
+ public ExtensibleStAXArtifactProcessor(StAXArtifactProcessorExtensionPoint processors,
+ XMLInputFactory inputFactory,
+ XMLOutputFactory outputFactory,
+ Monitor monitor) {
+ super();
+ this.processors = processors;
+ this.inputFactory = inputFactory;
+ this.outputFactory = outputFactory;
+ if (this.outputFactory != null) {
+ this.outputFactory.setProperty("javax.xml.stream.isRepairingNamespaces", Boolean.TRUE);
+ }
+ this.monitor = monitor;
+ }
+
+ /**
+ * Report a warning.
+ *
+ * @param problems
+ * @param message
+ * @param model
+ */
+ private void warning(String message, Object model, Object... messageParameters) {
+ if (monitor != null) {
+ Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-validation-messages", Severity.WARNING, model, message, (Object[])messageParameters);
+ monitor.problem(problem);
+ }
+ }
+
+ /**
+ * Report a error.
+ *
+ * @param problems
+ * @param message
+ * @param model
+ */
+ private void error(String message, Object model, Object... messageParameters) {
+ if (monitor != null) {
+ Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters);
+ monitor.problem(problem);
+ }
+ }
+
+ /**
+ * Report a exception.
+ *
+ * @param problems
+ * @param message
+ * @param model
+ */
+ private void error(String message, Object model, Exception ex) {
+ if (monitor != null) {
+ Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-validation-messages", Severity.ERROR, model, message, ex);
+ monitor.problem(problem);
+ }
+ }
+
+
+ public Object read(XMLStreamReader source) throws ContributionReadException, XMLStreamException {
+
+ // Delegate to the processor associated with the element QName
+ int event = source.getEventType();
+ if (event == XMLStreamConstants.START_DOCUMENT) {
+ source.nextTag();
+ }
+ QName name = source.getName();
+ StAXArtifactProcessor<?> processor = (StAXArtifactProcessor<?>)processors.getProcessor(name);
+ if (processor == null) {
+ Location location = source.getLocation();
+ if (logger.isLoggable(Level.WARNING)) {
+ logger.warning("Element " + name + " cannot be processed. (" + location + ")");
+ }
+ warning("ElementCannotBeProcessed", processors, name, location);
+
+ StAXArtifactProcessor anyElementProcessor = processors.getProcessor(ANY_ELEMENT);
+ if(anyElementProcessor != null) {
+ return anyElementProcessor.read(source);
+ } else {
+ return null;
+ }
+ }
+ return processor.read(source);
+ }
+
+ @SuppressWarnings("unchecked")
+ public void write(Object model, XMLStreamWriter outputSource) throws ContributionWriteException, XMLStreamException {
+
+ // Delegate to the processor associated with the model type
+ if (model != null) {
+ StAXArtifactProcessor processor = processors.getProcessor(model.getClass());
+ if (processor != null) {
+ processor.write(model, outputSource);
+ } else {
+ if (logger.isLoggable(Level.WARNING)) {
+ logger.warning("No StAX processor is configured to handle " + model.getClass());
+ }
+ warning("NoStaxProcessor", processors, model.getClass());
+ StAXArtifactProcessor anyElementProcessor = processors.getProcessor(ANY_ELEMENT);
+ if(anyElementProcessor != null) {
+ anyElementProcessor.write(model, outputSource);
+ }
+ }
+ }
+ }
+
+ @SuppressWarnings("unchecked")
+ public void resolve(Object model, ModelResolver resolver) throws ContributionResolveException {
+
+ // Delegate to the processor associated with the model type
+ if (model != null) {
+ StAXArtifactProcessor processor = processors.getProcessor(model.getClass());
+ if (processor != null) {
+ processor.resolve(model, resolver);
+ }
+ }
+ }
+
+ /**
+ * Read a model from an InputStream.
+ * @param is The artifact InputStream
+ * @param type Model type
+ * @return The model
+ * @throws ContributionReadException
+ */
+ public <M> M read(InputStream is, Class<M> type) throws ContributionReadException {
+ try {
+ XMLStreamReader reader;
+ try {
+ reader = inputFactory.createXMLStreamReader(is);
+ try {
+ reader.nextTag();
+ QName name = reader.getName();
+ Object mo = read(reader);
+ if (type.isInstance(mo)) {
+ return type.cast(mo);
+ } else {
+ error("UnrecognizedElementException", reader, name);
+ UnrecognizedElementException e = new UnrecognizedElementException(name);
+ throw e;
+ }
+ } catch (ContributionReadException e) {
+ Location location = reader.getLocation();
+ e.setLine(location.getLineNumber());
+ e.setColumn(location.getColumnNumber());
+ error("ContributionReadException", reader, e);
+ throw e;
+ } finally {
+ try {
+ reader.close();
+ } catch (XMLStreamException e) {
+ // ignore
+ }
+ }
+ } finally {
+ try {
+ is.close();
+ } catch (IOException e) {
+ // ignore
+ }
+ }
+ } catch (XMLStreamException e) {
+ ContributionReadException ce = new ContributionReadException(e);
+ error("ContributionReadException", inputFactory, ce);
+ throw ce;
+ }
+ }
+
+ /**
+ * Write a model to an OutputStream.
+ * @param model
+ * @param os
+ * @throws ContributionWriteException
+ */
+ public void write(Object model, OutputStream os) throws ContributionWriteException {
+ try {
+ XMLStreamWriter writer = outputFactory.createXMLStreamWriter(os);
+ write(model, writer);
+ writer.flush();
+ writer.close();
+ } catch (XMLStreamException e) {
+ ContributionWriteException cw = new ContributionWriteException(e);
+ error("ContributionWriteException", outputFactory, cw);
+ throw cw;
+ }
+ }
+
+ public QName getArtifactType() {
+ return null;
+ }
+
+ public Class<Object> getModelType() {
+ return null;
+ }
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ExtensibleStAXAttributeProcessor.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ExtensibleStAXAttributeProcessor.java
new file mode 100644
index 0000000000..c336cb3431
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ExtensibleStAXAttributeProcessor.java
@@ -0,0 +1,242 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.Location;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLOutputFactory;
+import javax.xml.stream.XMLStreamConstants;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.contribution.Constants;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+
+/**
+ * Implementation of an extensible StAX attribute processor.
+ *
+ * Takes a StAXAttributeProcessorExtensionPoint and delegates to the proper
+ * StAXAttributeProcessor by attribute QName
+ *
+ * @version $Rev$ $Date$
+ */
+public class ExtensibleStAXAttributeProcessor
+ implements StAXAttributeProcessor<Object> {
+
+ private static final Logger logger = Logger.getLogger(ExtensibleStAXAttributeProcessor.class.getName());
+
+ private static final QName ANY_ATTRIBUTE = new QName(Constants.XMLSCHEMA_NS, "anyAttribute");
+
+ private XMLInputFactory inputFactory;
+ private XMLOutputFactory outputFactory;
+ private StAXAttributeProcessorExtensionPoint processors;
+ private Monitor monitor;
+
+ /**
+ * Constructs a new ExtensibleStAXArtifactProcessor.
+ * @param processors
+ * @param inputFactory
+ * @param outputFactory
+ */
+ public ExtensibleStAXAttributeProcessor(StAXAttributeProcessorExtensionPoint processors,
+ XMLInputFactory inputFactory,
+ XMLOutputFactory outputFactory,
+ Monitor monitor) {
+ super();
+ this.processors = processors;
+ this.inputFactory = inputFactory;
+ this.outputFactory = outputFactory;
+ if (this.outputFactory != null) {
+ this.outputFactory.setProperty("javax.xml.stream.isRepairingNamespaces", Boolean.TRUE);
+ }
+ this.monitor = monitor;
+ }
+
+ /**
+ * Report a warning.
+ *
+ * @param problems
+ * @param message
+ * @param model
+ */
+ private void warning(String message, Object model, Object... messageParameters) {
+ if (monitor != null) {
+ Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-validation-messages", Severity.WARNING, model, message, (Object[])messageParameters);
+ monitor.problem(problem);
+ }
+ }
+
+ /**
+ * Report a error.
+ *
+ * @param problems
+ * @param message
+ * @param model
+ */
+ private void error(String message, Object model, Object... messageParameters) {
+ if (monitor != null) {
+ Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters);
+ monitor.problem(problem);
+ }
+ }
+
+ /**
+ * Report a exception.
+ *
+ * @param problems
+ * @param message
+ * @param model
+ */
+ private void error(String message, Object model, Exception ex) {
+ if (monitor != null) {
+ Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-validation-messages", Severity.ERROR, model, message, ex);
+ monitor.problem(problem);
+ }
+ }
+
+
+ public Object read(QName attributeName, XMLStreamReader source) throws ContributionReadException, XMLStreamException {
+ // Delegate to the processor associated with the attribute QName
+ int event = source.getEventType();
+ if (event == XMLStreamConstants.START_DOCUMENT) {
+ source.nextTag();
+ }
+
+ StAXAttributeProcessor<?> processor = null;
+
+ //lookup for registered attribute processors
+ processor = (StAXAttributeProcessor<?>)processors.getProcessor(attributeName);
+ if (processor == null) {
+ Location location = source.getLocation();
+ if (logger.isLoggable(Level.WARNING)) {
+ logger.warning("Attribute " + attributeName + " cannot be processed. (" + location + ")");
+ }
+ warning("AttributeCannotBeProcessed", processors, attributeName, location);
+ } else {
+ return processor.read(attributeName, source);
+ }
+
+
+ //handle extension attributes without processors
+ processor = (StAXAttributeProcessor<?>)processors.getProcessor(ANY_ATTRIBUTE);
+ if (processor == null) {
+ Location location = source.getLocation();
+ if (logger.isLoggable(Level.WARNING)) {
+ logger.warning("Could not find Default Attribute processor !");
+ }
+ warning("DefaultAttributeProcessorNotAvailable", processors, ANY_ATTRIBUTE, location);
+ }
+
+ return processor == null ? null : processor.read(attributeName, source);
+ }
+
+ @SuppressWarnings("unchecked")
+ public void write(Object model, XMLStreamWriter outputSource) throws ContributionWriteException, XMLStreamException {
+
+ if(model == null) {
+ return;
+ }
+
+ // Delegate to the processor associated with the model type
+ StAXAttributeProcessor processor = processors.getProcessor(model.getClass());
+ if(processor == null) {
+ if (logger.isLoggable(Level.WARNING)) {
+ logger.warning("No StAX processor is configured to handle " + model.getClass());
+ }
+ warning("NoStaxProcessor", processors, model.getClass());
+ } else {
+ processor.write(model, outputSource);
+ return;
+ }
+
+ //handle extension attributes without processors
+ processor = (StAXAttributeProcessor<?>)processors.getProcessor(ANY_ATTRIBUTE);
+ if(processor == null) {
+ if (logger.isLoggable(Level.WARNING)) {
+ logger.warning("No Default StAX processor is configured to handle " + model.getClass());
+ }
+ warning("NoDefaultStaxProcessor", processors, model.getClass());
+ } else {
+ processor.write(model, outputSource);
+ return;
+ }
+ }
+
+
+
+ @SuppressWarnings("unchecked")
+ public void resolve(Object model, ModelResolver resolver) throws ContributionResolveException {
+
+ // Delegate to the processor associated with the model type
+ if (model != null) {
+ StAXAttributeProcessor processor = processors.getProcessor(model.getClass());
+ if (processor != null) {
+ processor.resolve(model, resolver);
+ }
+ }
+ }
+
+ /**
+ * Read a model from an InputStream.
+ * @param is The artifact InputStream
+ * @param type Model type
+ * @return The model
+ * @throws ContributionReadException
+ */
+ public <M> M read(InputStream is, Class<M> type) throws ContributionReadException {
+ return null;
+ }
+
+ /**
+ * Write a model to an OutputStream.
+ * @param model
+ * @param os
+ * @throws ContributionWriteException
+ */
+ public void write(Object model, OutputStream os) throws ContributionWriteException {
+ try {
+ XMLStreamWriter writer = outputFactory.createXMLStreamWriter(os);
+ write(model, writer);
+ writer.flush();
+ writer.close();
+ } catch (XMLStreamException e) {
+ ContributionWriteException cw = new ContributionWriteException(e);
+ error("ContributionWriteException", outputFactory, cw);
+ throw cw;
+ }
+ }
+
+ public QName getArtifactType() {
+ return null;
+ }
+
+ public Class<Object> getModelType() {
+ return null;
+ }
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ExtensibleURLArtifactProcessor.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ExtensibleURLArtifactProcessor.java
new file mode 100644
index 0000000000..d867667eae
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ExtensibleURLArtifactProcessor.java
@@ -0,0 +1,155 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+import java.net.URI;
+import java.net.URL;
+
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+
+/**
+ * Implementation of an extensible URL artifact processor.
+ *
+ * Takes a URLArtifactProcessorExtensionPoint and delegates to the proper URLArtifactProcessor
+ * by either fileName or fileExtention
+ *
+ * @version $Rev$ $Date$
+ */
+public class ExtensibleURLArtifactProcessor implements URLArtifactProcessor<Object> {
+
+ private URLArtifactProcessorExtensionPoint processors;
+ private Monitor monitor;
+
+ /**
+ * Constructs a new ExtensibleURLArtifactProcessor.
+ *
+ * @param processors
+ */
+ public ExtensibleURLArtifactProcessor(URLArtifactProcessorExtensionPoint processors, Monitor monitor) {
+ this.processors = processors;
+ this.monitor = monitor;
+ }
+
+ /**
+ * Report a error.
+ *
+ * @param problems
+ * @param message
+ * @param model
+ */
+ private void error(String message, Object model, Object... messageParameters) {
+ if (monitor != null) {
+ Problem problem =
+ monitor.createProblem(this.getClass().getName(),
+ "contribution-validation-messages",
+ Severity.ERROR,
+ model,
+ message,
+ (Object[])messageParameters);
+ monitor.problem(problem);
+ }
+ }
+
+ @SuppressWarnings("unchecked")
+ public Object read(URL contributionURL, URI sourceURI, URL sourceURL) throws ContributionReadException {
+ URLArtifactProcessor<Object> processor = null;
+ if (sourceURI != null) {
+ //try to retrieve a processor for the specific URI
+ String uri = sourceURI.toString();
+ if (!uri.startsWith("/")) {
+ uri = "/" + uri;
+ }
+ // Register the URI as the artifact type starts with /
+ processor = (URLArtifactProcessor<Object>)processors.getProcessor(uri);
+ }
+ if (processor == null) {
+ // Delegate to the processor associated with file extension
+ String fileName = getFileName(sourceURL);
+
+ //try to retrieve a processor for the specific filename
+ processor = (URLArtifactProcessor<Object>)processors.getProcessor(fileName);
+ }
+
+ if (processor == null) {
+ //try to find my file type (extension)
+ String extension = sourceURL.getPath();
+
+ int extensionStart = extension.lastIndexOf('.');
+ //handle files without extension (e.g NOTICE)
+ if (extensionStart > 0) {
+ // File extensions are registered as .<extension>
+ extension = extension.substring(extensionStart);
+ processor = (URLArtifactProcessor<Object>)processors.getProcessor(extension);
+ }
+ }
+
+ if (processor == null) {
+ return null;
+ }
+ return processor.read(contributionURL, sourceURI, sourceURL);
+ }
+
+ @SuppressWarnings("unchecked")
+ public void resolve(Object model, ModelResolver resolver) throws ContributionResolveException {
+
+ // Delegate to the processor associated with the model type
+ if (model != null) {
+ URLArtifactProcessor processor = processors.getProcessor(model.getClass());
+ if (processor != null) {
+ processor.resolve(model, resolver);
+ }
+ }
+ }
+
+ public <M> M read(URL contributionURL, URI artifactURI, URL artifactUrl, Class<M> type)
+ throws ContributionReadException {
+ Object mo = read(contributionURL, artifactURI, artifactUrl);
+ if (type.isInstance(mo)) {
+ return type.cast(mo);
+ } else {
+ UnrecognizedElementException e = new UnrecognizedElementException(null);
+ e.setResourceURI(artifactURI.toString());
+ error("UnrecognizedElementException", processors, artifactURI.toString());
+ throw e;
+ }
+ }
+
+ public String getArtifactType() {
+ return null;
+ }
+
+ public Class<Object> getModelType() {
+ return null;
+ }
+
+ /**
+ * Returns the file name from a URL.
+ * @param url
+ * @return
+ */
+ private static String getFileName(URL url) {
+ String fileName = url.getPath();
+ int pos = fileName.lastIndexOf("/");
+
+ return fileName.substring(pos + 1);
+ }
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/StAXArtifactProcessor.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/StAXArtifactProcessor.java
new file mode 100644
index 0000000000..1bf9b4d494
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/StAXArtifactProcessor.java
@@ -0,0 +1,59 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.processor;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+
+/**
+ * An artifact processor that can read models from a StAX XMLStreamReader.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface StAXArtifactProcessor<M> extends ArtifactProcessor<M> {
+
+ /**
+ * Reads a model from an XMLStreamReader.
+ *
+ * @param reader The XMLStreamReader
+ * @return A model representation of the input.
+ */
+ M read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException;
+
+ /**
+ * Writes a model to an XMLStreamWriter.
+ *
+ * @param model A model representing the source
+ * @param writer The XML stream writer
+ * @throws ContributionWriteException
+ * @throws XMLStreamException
+ */
+ void write(M model, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException;
+
+ /**
+ * Returns the type of artifact handled by this artifact processor.
+ *
+ * @return The type of artifact handled by this artifact processor
+ */
+ QName getArtifactType();
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/StAXArtifactProcessorExtensionPoint.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/StAXArtifactProcessorExtensionPoint.java
new file mode 100644
index 0000000000..9700e2bc60
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/StAXArtifactProcessorExtensionPoint.java
@@ -0,0 +1,29 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+/**
+ * An extension point for StAX artifact processors.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface StAXArtifactProcessorExtensionPoint extends
+ ArtifactProcessorExtensionPoint<StAXArtifactProcessor> {
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/StAXAttributeProcessor.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/StAXAttributeProcessor.java
new file mode 100644
index 0000000000..b25bf0d669
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/StAXAttributeProcessor.java
@@ -0,0 +1,61 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.processor;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+
+
+/**
+ * An artifact processor that can read attributes from a StAX XMLStreamReader.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface StAXAttributeProcessor<M> extends ArtifactProcessor<M>{
+
+ /**
+ * Reads a model from an XMLStreamReader.
+ *
+ * @param reader The XMLStreamReader
+ * @return A model representation of the input.
+ */
+ M read(QName attributeName, XMLStreamReader reader) throws ContributionReadException, XMLStreamException;
+
+ /**
+ * Writes a model to an XMLStreamWriter.
+ *
+ * @param model A model representing the source
+ * @param writer The XML stream writer
+ * @throws ContributionWriteException
+ * @throws XMLStreamException
+ */
+ void write(M model, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException;
+
+ /**
+ * Returns the type of artifact handled by this artifact processor.
+ *
+ * @return The type of artifact handled by this artifact processor
+ */
+ QName getArtifactType();
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/StAXAttributeProcessorExtensionPoint.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/StAXAttributeProcessorExtensionPoint.java
new file mode 100644
index 0000000000..ebad243c1c
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/StAXAttributeProcessorExtensionPoint.java
@@ -0,0 +1,29 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+/**
+ * An extension point for StAX artifact processors.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface StAXAttributeProcessorExtensionPoint extends
+ ArtifactProcessorExtensionPoint<StAXAttributeProcessor> {
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/TuscanyNamespaceContext.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/TuscanyNamespaceContext.java
new file mode 100644
index 0000000000..2ddba7527e
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/TuscanyNamespaceContext.java
@@ -0,0 +1,114 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Stack;
+
+import javax.xml.namespace.NamespaceContext;
+
+/**
+ * Tuscany specialized class to handle NamespaceContext
+ *
+ */
+public class TuscanyNamespaceContext implements NamespaceContext {
+
+ private Stack<List<String>[]> context = null;
+
+ public TuscanyNamespaceContext(Stack<List<String>[]> context) {
+ this.context = context;
+ }
+
+ public String getNamespaceURI(String prefix) {
+ if (prefix == null) {
+ throw new IllegalArgumentException();
+ }
+ return (String)getResult("getNSUri", prefix);
+ }
+
+ public String getPrefix(String namespaceURI) {
+ if (namespaceURI == null) {
+ throw new IllegalArgumentException();
+ }
+ return (String)getResult("getPrefix", namespaceURI);
+ }
+
+ @SuppressWarnings("unchecked")
+ public Iterator<String> getPrefixes(String namespaceURI) {
+ if (namespaceURI == null) {
+ throw new IllegalArgumentException();
+ }
+
+ Iterator<String> iterator = (Iterator<String>)getResult("getPrefixes", namespaceURI);
+ return iterator;
+ }
+
+ /*
+ * Generic method to Iterate through the Stack and return required result(s)
+ */
+ private Object getResult(String operation, String arg) {
+
+ List<String>[] contextList = null;
+ Iterator<String> prefItr = null;
+ Iterator<String> uriItr = null;
+
+ List<String> list = new ArrayList<String>();
+
+ String toCompare = null;
+
+ String tempPrefix = null;
+ String tempUri = null;
+
+ for (int i = context.size() - 1; i >= 0; i--) {
+ contextList = context.get(i);
+ prefItr = contextList[0].iterator();
+ uriItr = contextList[1].iterator();
+ while (uriItr.hasNext()) {
+ tempPrefix = prefItr.next();
+ tempUri = uriItr.next();
+ if (operation.equalsIgnoreCase("getNSUri")) {
+ toCompare = tempPrefix;
+ } else if (operation.equalsIgnoreCase("getPrefix")) {
+ toCompare = tempUri;
+ } else if (operation.equalsIgnoreCase("getPrefixes")) {
+ toCompare = tempUri;
+ }
+ if (toCompare != null && arg.equalsIgnoreCase(toCompare)) {
+ if (operation.equalsIgnoreCase("getNSUri")) {
+ return tempUri;
+ } else if (operation.equalsIgnoreCase("getPrefix")) {
+ return tempPrefix;
+ } else if (operation.equalsIgnoreCase("getPrefixes")) {
+ list.add(tempPrefix);
+ }
+
+ }
+ }
+ }
+
+ if (operation.equalsIgnoreCase("getPrefixes")) {
+ return Collections.unmodifiableList(list).iterator();
+ }
+
+ return null;
+ }
+} \ No newline at end of file
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/TuscanyXMLStreamReader.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/TuscanyXMLStreamReader.java
new file mode 100644
index 0000000000..3352e76a0d
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/TuscanyXMLStreamReader.java
@@ -0,0 +1,110 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.processor;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Stack;
+
+import javax.xml.XMLConstants;
+import javax.xml.namespace.NamespaceContext;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.util.StreamReaderDelegate;
+
+/*
+ * Custom implementaion of the XMLStreamReader to keep track of the namespace context for each element
+ */
+public class TuscanyXMLStreamReader extends StreamReaderDelegate implements XMLStreamReader {
+
+ Stack<List<String>[]> context = new Stack<List<String>[]>();
+
+ List<String>[] contextList;
+ List<String> prefixList;
+ List<String> uriList;
+
+ public TuscanyXMLStreamReader(XMLStreamReader reader) {
+ super(reader);
+ }
+
+ public void pushContext() throws XMLStreamException {
+ contextList = new List[2];
+ prefixList = new ArrayList<String>();
+ uriList = new ArrayList<String>();
+ int namespaceCount = this.getNamespaceCount();
+ for (int i = 0; i < namespaceCount; i++) {
+ prefixList.add(checkString(this.getNamespacePrefix(i)));
+ uriList.add(this.getNamespaceURI(i));
+ }
+ contextList[0] = prefixList;
+ contextList[1] = uriList;
+ context.push(contextList);
+ }
+
+ private String checkString(String namespacePrefix) {
+ if (namespacePrefix == null) {
+ return XMLConstants.DEFAULT_NS_PREFIX;
+ } else {
+ return namespacePrefix;
+ }
+ }
+
+ public void popContext() throws XMLStreamException {
+ context.pop();
+ }
+
+ /*
+ * Overriding the next() method to perform PUSH and POP operations
+ * for the NamespaceContext for the current element
+ */
+
+ @Override
+ public int next() throws XMLStreamException {
+ // POP the context if the element ends
+ if (this.getEventType() == END_ELEMENT) {
+ popContext();
+ }
+
+ //get the next event
+ int nextEvent = super.next();
+ //PUSH the events info onto the Stack
+ if (nextEvent == START_ELEMENT) {
+ pushContext();
+ }
+ return nextEvent;
+ }
+
+ @Override
+ public int nextTag() throws XMLStreamException {
+ int event = super.nextTag();
+ if (event == START_ELEMENT) {
+ pushContext();
+ }
+ if (event == END_ELEMENT) {
+ popContext();
+ }
+ return event;
+ }
+
+ @Override
+ public NamespaceContext getNamespaceContext() {
+ return new TuscanyNamespaceContext((Stack<List<String>[]>)context.clone());
+ }
+} \ No newline at end of file
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/URLArtifactProcessor.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/URLArtifactProcessor.java
new file mode 100644
index 0000000000..c44ca0c66a
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/URLArtifactProcessor.java
@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.processor;
+
+import java.net.URI;
+import java.net.URL;
+
+
+/**
+ * An artifact processor that can read models from a URL.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface URLArtifactProcessor<M> extends ArtifactProcessor<M> {
+
+ /**
+ * Reads a model from a URL.
+ *
+ * @param contributionURL Contribution location URL
+ * @param artifactURI Artifact URI
+ * @param artifactURL Artifact location URL
+ * @return A model representation of the input.
+ */
+ M read(URL contributionURL, URI artifactURI, URL artifactURL) throws ContributionReadException;
+
+ /**
+ * Returns the type of artifact handled by this artifact processor.
+ *
+ * @return The type of artifact handled by this artifact processor
+ */
+ String getArtifactType();
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/URLArtifactProcessorExtensionPoint.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/URLArtifactProcessorExtensionPoint.java
new file mode 100644
index 0000000000..7714586951
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/URLArtifactProcessorExtensionPoint.java
@@ -0,0 +1,29 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+/**
+ * An extension point for URL artifact processors.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface URLArtifactProcessorExtensionPoint extends
+ ArtifactProcessorExtensionPoint<URLArtifactProcessor> {
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/UnrecognizedElementException.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/UnrecognizedElementException.java
new file mode 100644
index 0000000000..4c6f0b7282
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/UnrecognizedElementException.java
@@ -0,0 +1,48 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+import javax.xml.namespace.QName;
+
+/**
+ * Exception that indicates an element was encountered that could not be handled.
+ *
+ * @version $Rev$ $Date$
+ */
+public class UnrecognizedElementException extends ContributionReadException {
+ private static final long serialVersionUID = 2549543622209829032L;
+ private final QName element;
+
+ /**
+ * Constructor that indicates which element could not be handled.
+ * @param element the element that could not be handled
+ */
+ public UnrecognizedElementException(QName element) {
+ super("Unrecognized element: " + element);
+ this.element = element;
+ }
+
+ /**
+ * Returns the element that could not be handled.
+ * @return the element that could not be handled.
+ */
+ public QName getElement() {
+ return element;
+ }
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/UnsupportedContentTypeException.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/UnsupportedContentTypeException.java
new file mode 100644
index 0000000000..8a166e42f0
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/UnsupportedContentTypeException.java
@@ -0,0 +1,43 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+
+/**
+ * Exception thrown to indicate that a Content-Type is not supported by this SCA Domain.
+ * The Content-Type value supplied will be returned as the message text for this exception.
+ *
+ * FIXME Don't use as it's deprecated and replaced by UnsupportedPackageTypeException.
+ *
+ * @version $Rev$ $Date$
+ */
+@Deprecated
+public class UnsupportedContentTypeException extends ContributionException {
+ private static final long serialVersionUID = -1831797280021355672L;
+
+ /**
+ * Constructs a new UnsupportedContentTypeException.
+ *
+ * @param message
+ */
+ public UnsupportedContentTypeException(String message) {
+ super(message);
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/UnsupportedPackageTypeException.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/UnsupportedPackageTypeException.java
new file mode 100644
index 0000000000..ce94cef6a0
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/UnsupportedPackageTypeException.java
@@ -0,0 +1,40 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.processor;
+
+
+/**
+ * Exception thrown to indicate that a Content-Type is not supported by this SCA Domain.
+ * The Content-Type value supplied will be returned as the message text for this exception.
+ *
+ * @version $Rev$ $Date$
+ */
+public class UnsupportedPackageTypeException extends ContributionException {
+ private static final long serialVersionUID = -1831797280021355672L;
+
+ /**
+ * Constructs a new UnsupportedPackageTypeException.
+ *
+ * @param message
+ */
+ public UnsupportedPackageTypeException(String message) {
+ super(message);
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidatingXMLInputFactory.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidatingXMLInputFactory.java
new file mode 100644
index 0000000000..c0eef5a7a8
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidatingXMLInputFactory.java
@@ -0,0 +1,30 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.processor;
+
+import javax.xml.stream.XMLInputFactory;
+
+/**
+ * Base marker class for validating XML input factories.
+ *
+ * @version $Rev$ $Date$
+ */
+public abstract class ValidatingXMLInputFactory extends XMLInputFactory {
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidatingXMLStreamReader.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidatingXMLStreamReader.java
new file mode 100644
index 0000000000..3f5582d4e7
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidatingXMLStreamReader.java
@@ -0,0 +1,395 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.processor;
+
+import java.util.logging.Logger;
+
+import javax.xml.namespace.NamespaceContext;
+import javax.xml.namespace.QName;
+import javax.xml.stream.Location;
+import javax.xml.stream.XMLStreamConstants;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.validation.Schema;
+import javax.xml.validation.ValidatorHandler;
+
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+import org.xml.sax.Attributes;
+import org.xml.sax.ErrorHandler;
+import org.xml.sax.Locator;
+import org.xml.sax.SAXException;
+import org.xml.sax.SAXParseException;
+import org.xml.sax.helpers.AttributesImpl;
+
+/**
+ *
+ * A validating XMLStreamReader that reports XMLSchema validation errors.
+ *
+ * @version $Rev$ $Date$
+ */
+class ValidatingXMLStreamReader extends TuscanyXMLStreamReader implements XMLStreamReader {
+
+ private static final Logger logger = Logger.getLogger(ValidatingXMLStreamReader.class.getName());
+
+ private int level;
+ private ValidatorHandler handler;
+ private final Monitor monitor;
+
+ /**
+ * Constructs a new ValidatingXMLStreamReader.
+ *
+ * @param reader
+ * @param schema
+ * @throws XMLStreamException
+ */
+ ValidatingXMLStreamReader(XMLStreamReader reader, Schema schema, Monitor monitor) throws XMLStreamException {
+ super(reader);
+ this.monitor = monitor;
+ if (schema == null) {
+ return;
+ }
+
+ handler = schema.newValidatorHandler();
+ handler.setDocumentLocator(new LocatorAdapter());
+ try {
+ handler.setFeature("http://xml.org/sax/features/namespace-prefixes", true);
+ } catch (SAXException e) {
+ XMLStreamException xse = new XMLStreamException(e);
+ error("XMLStreamException", handler, xse);
+ throw xse;
+ }
+
+ // These validation errors are just warnings for us as we want to support
+ // running from an XML document with XSD validation errors, as long as we can
+ // get the metadata we need from the document
+ handler.setErrorHandler(new ErrorHandler() {
+ private String getMessage(SAXParseException e) {
+ return "XMLSchema validation problem in: " + e.getSystemId() + ", line: " + e.getLineNumber() + ", column: " + e.getColumnNumber() + "\n" + e.getMessage();
+ }
+
+ public void error(SAXParseException exception) throws SAXException {
+ if (ValidatingXMLStreamReader.this.monitor == null)
+ logger.warning(getMessage(exception));
+ else
+ ValidatingXMLStreamReader.this.error("SchemaError", ValidatingXMLStreamReader.this.getClass(), exception.getSystemId(),
+ exception.getLineNumber(), exception.getColumnNumber(), exception.getMessage());
+ }
+
+ public void fatalError(SAXParseException exception) throws SAXException {
+ if (ValidatingXMLStreamReader.this.monitor == null)
+ logger.warning(getMessage(exception));
+ else
+ ValidatingXMLStreamReader.this.error("SchemaFatalError", ValidatingXMLStreamReader.this.getClass(), exception.getSystemId(),
+ exception.getLineNumber(), exception.getColumnNumber(), exception.getMessage());
+ }
+
+ public void warning(SAXParseException exception) throws SAXException {
+ if (ValidatingXMLStreamReader.this.monitor == null)
+ logger.warning(getMessage(exception));
+ else
+ ValidatingXMLStreamReader.this.warning("SchemaWarning", ValidatingXMLStreamReader.this.getClass(), exception.getSystemId(),
+ exception.getLineNumber(), exception.getColumnNumber(), exception.getMessage());
+ }
+ });
+ }
+
+ /**
+ * Report a warning.
+ *
+ * @param problems
+ * @param message
+ * @param model
+ */
+ private void warning(String message, Object model, Object... messageParameters) {
+ if (monitor != null) {
+ Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-validation-messages", Severity.WARNING, model, message, (Object[])messageParameters);
+ monitor.problem(problem);
+ }
+ }
+
+ /**
+ * Report a error.
+ *
+ * @param problems
+ * @param message
+ * @param model
+ */
+ private void error(String message, Object model, Object... messageParameters) {
+ if (monitor != null) {
+ Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters);
+ monitor.problem(problem);
+ }
+ }
+
+ @Override
+ public int next() throws XMLStreamException {
+ if (handler == null) {
+ return super.next();
+ }
+
+ int event = super.next();
+ try {
+ switch (event) {
+ case XMLStreamConstants.START_DOCUMENT:
+ level++;
+ handler.startDocument();
+ break;
+ case XMLStreamConstants.START_ELEMENT:
+ level++;
+ handleStartElement();
+ break;
+ case XMLStreamConstants.PROCESSING_INSTRUCTION:
+ handler.processingInstruction(super.getPITarget(), super.getPIData());
+ break;
+ case XMLStreamConstants.CHARACTERS:
+ case XMLStreamConstants.CDATA:
+ case XMLStreamConstants.SPACE:
+ case XMLStreamConstants.ENTITY_REFERENCE:
+ handler.characters(super.getTextCharacters(), super.getTextStart(), super.getTextLength());
+ break;
+ case XMLStreamConstants.END_ELEMENT:
+ handleEndElement();
+ level--;
+ break;
+ case XMLStreamConstants.END_DOCUMENT:
+ handler.endDocument();
+ break;
+ }
+ } catch (SAXException e) {
+ XMLStreamException xse = new XMLStreamException(e.getMessage(), e);
+ error("XMLStreamException", handler, xse);
+ throw xse;
+ }
+ return event;
+ }
+
+ @Override
+ public int nextTag() throws XMLStreamException {
+ if (handler == null) {
+ return super.nextTag();
+ }
+
+ for (;;) {
+ int event = super.getEventType();
+ try {
+ switch (event) {
+ case XMLStreamConstants.START_DOCUMENT:
+ level++;
+ handler.startDocument();
+ break;
+ case XMLStreamConstants.START_ELEMENT:
+ level++;
+ handleStartElement();
+ pushContext();
+ return event;
+ case XMLStreamConstants.PROCESSING_INSTRUCTION:
+ handler.processingInstruction(super.getPITarget(), super.getPIData());
+ break;
+ case XMLStreamConstants.CHARACTERS:
+ case XMLStreamConstants.CDATA:
+ case XMLStreamConstants.SPACE:
+ case XMLStreamConstants.ENTITY_REFERENCE:
+ handler.characters(super.getTextCharacters(), super.getTextStart(), super.getTextLength());
+ break;
+ case XMLStreamConstants.END_ELEMENT:
+ handleEndElement();
+ level--;
+ popContext();
+ return event;
+ case XMLStreamConstants.END_DOCUMENT:
+ handler.endDocument();
+ return event;
+ }
+ } catch (SAXException e) {
+ XMLStreamException xse = new XMLStreamException(e);
+ error("XMLStreamException", handler, xse);
+ throw xse;
+ }
+ super.next();
+ }
+ }
+
+ @Override
+ public String getElementText() throws XMLStreamException {
+ if (handler == null) {
+ return super.getElementText();
+ }
+
+ if (getEventType() != XMLStreamConstants.START_ELEMENT) {
+ return super.getElementText();
+ }
+ StringBuffer text = new StringBuffer();
+
+ for (;;) {
+ int event = next();
+ switch (event) {
+ case XMLStreamConstants.END_ELEMENT:
+ return text.toString();
+
+ case XMLStreamConstants.COMMENT:
+ case XMLStreamConstants.PROCESSING_INSTRUCTION:
+ continue;
+
+ case CHARACTERS:
+ case CDATA:
+ case SPACE:
+ case ENTITY_REFERENCE:
+ text.append(getText());
+ break;
+
+ default:
+ break;
+ }
+ }
+ }
+
+ @Override
+ public NamespaceContext getNamespaceContext(){
+ return super.getNamespaceContext();
+ }
+
+ /**
+ * Handle a start element event.
+ *
+ * @throws SAXException
+ */
+ private void handleStartElement() throws SAXException {
+
+ // send startPrefixMapping events immediately before startElement event
+ int nsCount = super.getNamespaceCount();
+ for (int i = 0; i < nsCount; i++) {
+ String prefix = super.getNamespacePrefix(i);
+ if (prefix == null) { // true for default namespace
+ prefix = "";
+ }
+ handler.startPrefixMapping(prefix, super.getNamespaceURI(i));
+ }
+
+ // fire startElement
+ QName qname = super.getName();
+ String prefix = qname.getPrefix();
+ String rawname;
+ if (prefix == null || prefix.length() == 0) {
+ rawname = qname.getLocalPart();
+ } else {
+ rawname = prefix + ':' + qname.getLocalPart();
+ }
+ Attributes attrs = getAttributes();
+ handler.startElement(qname.getNamespaceURI(), qname.getLocalPart(), rawname, attrs);
+ }
+
+ /**
+ * Handle an endElement event.
+ *
+ * @throws SAXException
+ */
+ private void handleEndElement() throws SAXException {
+
+ // fire endElement
+ QName qname = super.getName();
+ handler.endElement(qname.getNamespaceURI(), qname.getLocalPart(), qname.toString());
+
+ // send endPrefixMapping events immediately after endElement event
+ // we send them in the opposite order to that returned but this is not
+ // actually required by SAX
+ int nsCount = super.getNamespaceCount();
+ for (int i = nsCount - 1; i >= 0; i--) {
+ String prefix = super.getNamespacePrefix(i);
+ if (prefix == null) { // true for default namespace
+ prefix = "";
+ }
+ handler.endPrefixMapping(prefix);
+ }
+ }
+
+ /**
+ * Get the attributes associated with the current START_ELEMENT event.
+ *
+ * @return the StAX attributes converted to org.xml.sax.Attributes
+ */
+ private Attributes getAttributes() {
+ AttributesImpl attrs = new AttributesImpl();
+
+ // add namespace declarations
+ for (int i = 0; i < super.getNamespaceCount(); i++) {
+ String prefix = super.getNamespacePrefix(i);
+ String uri = super.getNamespaceURI(i);
+ if (prefix == null) {
+ attrs.addAttribute("", "", "xmlns", "CDATA", uri);
+ } else {
+ attrs.addAttribute("", "", "xmlns:" + prefix, "CDATA", uri);
+ }
+ }
+
+ // Regular attributes
+ for (int i = 0; i < super.getAttributeCount(); i++) {
+ String uri = super.getAttributeNamespace(i);
+ if (uri == null) {
+ uri = "";
+ }
+ String localName = super.getAttributeLocalName(i);
+ String prefix = super.getAttributePrefix(i);
+ String qname;
+ if (prefix == null || prefix.length() == 0) {
+ qname = localName;
+ } else {
+ qname = prefix + ':' + localName;
+ }
+ String type = super.getAttributeType(i);
+ String value = super.getAttributeValue(i);
+
+ attrs.addAttribute(uri, localName, qname, type, value);
+ }
+
+ return attrs;
+ }
+
+ /**
+ * Adapter for mapping Locator information.
+ */
+ private final class LocatorAdapter implements Locator {
+
+ private LocatorAdapter() {
+ }
+
+ public int getColumnNumber() {
+ Location location = getLocation();
+ return location == null ? 0 : location.getColumnNumber();
+ }
+
+ public int getLineNumber() {
+ Location location = getLocation();
+ return location == null ? 0 : location.getLineNumber();
+ }
+
+ public String getPublicId() {
+ Location location = getLocation();
+ return location == null ? "" : location.getPublicId();
+ }
+
+ public String getSystemId() {
+ Location location = getLocation();
+ return location == null ? "" : location.getSystemId();
+ }
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidationSchemaExtensionPoint.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidationSchemaExtensionPoint.java
new file mode 100644
index 0000000000..cc3bb59a5b
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidationSchemaExtensionPoint.java
@@ -0,0 +1,52 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.processor;
+
+import java.util.List;
+
+
+/**
+ * An extension point for XML schemas used for validation.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ValidationSchemaExtensionPoint {
+
+ /**
+ * Add a schema.
+ *
+ * @param uri the URI of the schema
+ */
+ void addSchema(String uri);
+
+ /**
+ * Remove a schema.
+ *
+ * @param uri the URI of the schema
+ */
+ void removeSchema(String uri);
+
+ /**
+ * Returns the list of schemas registered in the extension point.
+ * @return the list of schemas
+ */
+ List<String> getSchemas();
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ClassReference.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ClassReference.java
new file mode 100644
index 0000000000..f3555ee71e
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ClassReference.java
@@ -0,0 +1,107 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.resolver;
+
+import java.lang.ref.WeakReference;
+
+import org.apache.tuscany.sca.assembly.Base;
+
+/**
+ * A weak reference to a class, which should be used to register classes
+ * with an ArtifactResolver and resolve these classes later.
+ *
+ * FIXME The core contribution model should not have dependencies on classes
+ * and ClassLoaders. This should move to the Java import support module.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ClassReference implements Base {
+
+ private WeakReference<Class<?>> clazz;
+ private String className;
+
+ /**
+ * Constructs a new ClassReference.
+ *
+ * @param clazz The class reference
+ */
+ public ClassReference(Class<?> clazz) {
+ this.clazz = new WeakReference<Class<?>>(clazz);
+ this.className = clazz.getName();
+ }
+
+ /**
+ * Constructs a new ClassReference.
+ *
+ * @param className The class name
+ */
+ public ClassReference(String className) {
+ this.className = className;
+ }
+
+ /**
+ * Get the referenced class.
+ *
+ * @return The referenced class
+ */
+ public Class<?> getJavaClass() {
+ if (clazz != null) {
+ return clazz.get();
+ } else {
+ return null;
+ }
+ }
+
+ /**
+ * Get the referenced class name.
+ *
+ * @return The class name
+ */
+ public String getClassName() {
+ return className;
+ }
+
+ public boolean isUnresolved() {
+ return clazz == null;
+ }
+
+ public void setUnresolved(boolean unresolved) {
+ throw new IllegalStateException();
+ }
+
+ @Override
+ public int hashCode() {
+ return className.hashCode();
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (obj == this) {
+ return true;
+ } else {
+ if (obj instanceof ClassReference) {
+ return className.equals(((ClassReference)obj).className);
+ } else {
+ return false;
+ }
+ }
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/DefaultDelegatingModelResolver.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/DefaultDelegatingModelResolver.java
new file mode 100644
index 0000000000..13c622adf0
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/DefaultDelegatingModelResolver.java
@@ -0,0 +1,68 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.resolver;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Base;
+
+/**
+ * A model resolver implementation that delegates to a list of model resolvers.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultDelegatingModelResolver implements ModelResolver {
+
+ private List<ModelResolver> resolvers;
+
+ public DefaultDelegatingModelResolver(List<ModelResolver> resolvers) {
+ this.resolvers = resolvers;
+ }
+
+ public void addModel(Object resolved) {
+ throw new IllegalStateException();
+ }
+
+ public Object removeModel(Object resolved) {
+ throw new IllegalStateException();
+ }
+
+ public <T> T resolveModel(Class<T> modelClass, T unresolved) {
+
+ //TODO optimize and cache results of the resolution later
+
+ // Go over all resolvers
+ for (ModelResolver resolver: resolvers) {
+
+ Object resolved = resolver.resolveModel(modelClass, unresolved);
+
+ // Return the resolved model object
+ if (resolved instanceof Base) {
+ if (!((Base)resolved).isUnresolved()) {
+ return modelClass.cast(resolved);
+ }
+ }
+ }
+
+ // Model object was not resolved
+ return unresolved;
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/DefaultImportAllModelResolver.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/DefaultImportAllModelResolver.java
new file mode 100644
index 0000000000..c6facd2b02
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/DefaultImportAllModelResolver.java
@@ -0,0 +1,80 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.resolver;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Base;
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.Export;
+import org.apache.tuscany.sca.contribution.Import;
+
+/**
+ * A model resolver implementation that considers Exports in a list of contributions.
+ *
+ * @version $Rev: 560435 $ $Date: 2007-07-27 18:26:55 -0700 (Fri, 27 Jul 2007) $
+ */
+public class DefaultImportAllModelResolver implements ModelResolver {
+
+ private Import import_;
+ private List<Contribution> contributions;
+
+ public DefaultImportAllModelResolver(Import import_, List<Contribution> contributions) {
+ this.import_ = import_;
+ this.contributions = contributions;
+ }
+
+ public void addModel(Object resolved) {
+ throw new IllegalStateException();
+ }
+
+ public Object removeModel(Object resolved) {
+ throw new IllegalStateException();
+ }
+
+ public <T> T resolveModel(Class<T> modelClass, T unresolved) {
+
+ //TODO optimize and cache results of the resolution later
+
+ // Go over all available contributions
+ for (Contribution contribution : contributions) {
+
+ // Go over all exports in the contribution
+ for (Export export : contribution.getExports()) {
+
+ // If the export matches the export, try to resolve the model object
+ if (import_.match(export)) {
+ Object resolved = export.getModelResolver().resolveModel(modelClass, unresolved);
+
+ // Return the resolved model object
+ if (resolved instanceof Base) {
+ if (!((Base)resolved).isUnresolved()) {
+ return modelClass.cast(resolved);
+ }
+ }
+ }
+ }
+ }
+
+ // Model object was not resolved
+ return unresolved;
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/DefaultImportModelResolver.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/DefaultImportModelResolver.java
new file mode 100644
index 0000000000..9ae57c41d0
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/DefaultImportModelResolver.java
@@ -0,0 +1,69 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.resolver;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Base;
+import org.apache.tuscany.sca.contribution.Export;
+
+/**
+ * A model resolver implementation that delegates to a list of exports.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultImportModelResolver implements ModelResolver {
+
+ private List<Export> exports;
+
+ public DefaultImportModelResolver(List<Export> exports) {
+ this.exports = exports;
+ }
+
+ public void addModel(Object resolved) {
+ throw new IllegalStateException();
+ }
+
+ public Object removeModel(Object resolved) {
+ throw new IllegalStateException();
+ }
+
+ public <T> T resolveModel(Class<T> modelClass, T unresolved) {
+
+ //TODO optimize and cache results of the resolution later
+
+ // Go over all exports
+ for (Export export: exports) {
+
+ Object resolved = export.getModelResolver().resolveModel(modelClass, unresolved);
+
+ // Return the resolved model object
+ if (resolved instanceof Base) {
+ if (!((Base)resolved).isUnresolved()) {
+ return modelClass.cast(resolved);
+ }
+ }
+ }
+
+ // Model object was not resolved
+ return unresolved;
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/DefaultModelResolver.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/DefaultModelResolver.java
new file mode 100644
index 0000000000..1803315e2e
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/DefaultModelResolver.java
@@ -0,0 +1,88 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.resolver;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.DefaultImport;
+import org.apache.tuscany.sca.contribution.Import;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+
+/**
+ * A default implementation of a model resolver based on a map.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultModelResolver implements ModelResolver {
+
+ private Contribution contribution;
+ private Map<Object, Object> map = new HashMap<Object, Object>();
+
+ public DefaultModelResolver() {
+ }
+
+ public DefaultModelResolver(Contribution contribution, FactoryExtensionPoint modelFactories) {
+ this.contribution = contribution;
+ }
+
+ public <T> T resolveModel(Class<T> modelClass, T unresolved) {
+ Object resolved = map.get(unresolved);
+ if (resolved != null) {
+
+ // Return the resolved object
+ return modelClass.cast(resolved);
+
+ } else {
+
+ // by default try and resolve through a default import
+ // if there is one.
+ if (contribution != null){
+ for (Import _import : contribution.getImports()){
+ if (_import instanceof DefaultImport){
+ resolved = _import.getModelResolver().resolveModel(modelClass, unresolved);
+ if (resolved != unresolved){
+ return modelClass.cast(resolved);
+ }
+ }
+ }
+ }
+
+ // Return the unresolved object
+ return unresolved;
+ }
+ }
+
+ public void addModel(Object resolved) {
+ map.put(resolved, resolved);
+ }
+
+ public Object removeModel(Object resolved) {
+ return map.remove(resolved);
+ }
+
+ // FIXME: TUSCANY-2499: temporarily give access to the models to get the jms binding
+ // use of definitions.xml working while the definitions.xml processing is being refactored
+ public Map<Object, Object> getModels() {
+ return map;
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/DefaultModelResolverExtensionPoint.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/DefaultModelResolverExtensionPoint.java
new file mode 100644
index 0000000000..33e252830a
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/DefaultModelResolverExtensionPoint.java
@@ -0,0 +1,114 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.resolver;
+
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+
+import org.apache.tuscany.sca.extensibility.ServiceDeclaration;
+import org.apache.tuscany.sca.extensibility.ServiceDiscovery;
+
+
+/**
+ * The default implementation of a model resolver extension point.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultModelResolverExtensionPoint implements ModelResolverExtensionPoint {
+
+ private final Map<Class<?>, Class<? extends ModelResolver>> resolvers = new HashMap<Class<?>, Class<? extends ModelResolver>>();
+ private Map<String, ServiceDeclaration> loadedResolvers;
+
+ /**
+ * Constructs a new DefaultModelResolverExtensionPoint.
+ */
+ public DefaultModelResolverExtensionPoint() {
+ }
+
+ public void addResolver(Class<?> modelType, Class<? extends ModelResolver> resolver) {
+ resolvers.put(modelType, resolver);
+ }
+
+ public void removeResolver(Class<?> modelType) {
+ resolvers.remove(modelType);
+ }
+
+ @SuppressWarnings("unchecked")
+ public Class<? extends ModelResolver> getResolver(Class<?> modelType) {
+ loadModelResolvers();
+
+ Class<?>[] classes = modelType.getInterfaces();
+ for (Class<?> c : classes) {
+ Class<? extends ModelResolver> resolver = resolvers.get(c);
+ if (resolver == null) {
+ ServiceDeclaration resolverClass = loadedResolvers.get(c.getName());
+ if (resolverClass != null) {
+ try {
+ return (Class<? extends ModelResolver>)resolverClass.loadClass();
+ } catch (ClassNotFoundException e) {
+ throw new IllegalArgumentException(e);
+ }
+ }
+ } else {
+ return resolver;
+ }
+ }
+
+ Class<? extends ModelResolver > resolver = resolvers.get(modelType);
+ if (resolver == null) {
+ ServiceDeclaration resolverClass = loadedResolvers.get(modelType.getName());
+ if (resolverClass != null) {
+ try {
+ return (Class<? extends ModelResolver>)resolverClass.loadClass();
+ } catch (ClassNotFoundException e) {
+ throw new IllegalArgumentException(e);
+ }
+ }
+ }
+ return resolver;
+ }
+
+ /**
+ * Dynamically load model resolvers declared under META-INF/services
+ */
+ private synchronized void loadModelResolvers() {
+ if (loadedResolvers != null)
+ return;
+ loadedResolvers = new HashMap<String, ServiceDeclaration>();
+
+ // Get the model resolver service declarations
+ Set<ServiceDeclaration> modelResolverDeclarations;
+ try {
+ modelResolverDeclarations = ServiceDiscovery.getInstance().getServiceDeclarations(ModelResolver.class.getName());
+ } catch (IOException e) {
+ throw new IllegalStateException(e);
+ }
+
+ // Load model resolvers
+ for (ServiceDeclaration modelResolverDeclaration: modelResolverDeclarations) {
+ Map<String, String> attributes = modelResolverDeclaration.getAttributes();
+ String model = attributes.get("model");
+
+ loadedResolvers.put(model, modelResolverDeclaration);
+ }
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ExtensibleModelResolver.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ExtensibleModelResolver.java
new file mode 100644
index 0000000000..b48742bcae
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ExtensibleModelResolver.java
@@ -0,0 +1,200 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.resolver;
+
+import java.lang.reflect.Constructor;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+
+/**
+ * An implementation of an extensible model resolver which delegates to the
+ * proper resolver extension based on the class of the model to resolve.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ExtensibleModelResolver implements ModelResolver {
+ private final ModelResolverExtensionPoint resolverExtensions;
+ private final FactoryExtensionPoint modelFactories;
+ private final Contribution contribution;
+ private ModelResolver defaultResolver;
+ private final Map<Class<?>, ModelResolver> resolversByModelType = new HashMap<Class<?>, ModelResolver>();
+ private final Map<Class<?>, ModelResolver> resolversByImplementationClass = new HashMap<Class<?>, ModelResolver>();
+ private Map<Object, Object> map = new HashMap<Object, Object>();
+ private Object lastUnresolved;
+
+ /**
+ * Constructs an extensible model resolver
+ *
+ * @param contribution
+ * @param resolverExtensions
+ * @param modelFactories
+ * @param defaultResolver
+ */
+ @Deprecated
+ public ExtensibleModelResolver(Contribution contribution,
+ ModelResolverExtensionPoint resolverExtensions,
+ FactoryExtensionPoint modelFactories,
+ ModelResolver defaultResolver) {
+ this.contribution = contribution;
+ this.resolverExtensions = resolverExtensions;
+ this.modelFactories = modelFactories;
+ //FIXME Remove this default resolver, this is currently used to resolve policy declarations
+ // but they should be handled by the contribution import/export mechanism instead of this
+ // defaultResolver hack.
+ this.defaultResolver = defaultResolver;
+ }
+
+ /**
+ * Constructs an extensible model resolver
+ *
+ * @param resolverExtensions
+ * @param contribution
+ * @param modelFactories
+ */
+ public ExtensibleModelResolver(Contribution contribution,
+ ModelResolverExtensionPoint resolverExtensions,
+ FactoryExtensionPoint modelFactories) {
+ this.contribution = contribution;
+ this.resolverExtensions = resolverExtensions;
+ this.modelFactories = modelFactories;
+ }
+
+ /**
+ * Returns the proper resolver instance based on the interfaces of the model
+ * If one is not available on the registry, instantiate on demand
+ *
+ * @param modelType
+ * @return
+ */
+ private ModelResolver getModelResolverInstance(Class<?> modelType) {
+ // Look up a model resolver instance for the model class or
+ // each implemented interface
+ Class<?>[] interfaces = modelType.getInterfaces();
+ Class<?>[] classes = new Class<?>[interfaces.length + 1];
+ classes[0] = modelType;
+ if (interfaces.length != 0) {
+ System.arraycopy(interfaces, 0, classes, 1, interfaces.length);
+ }
+ for (Class<?> c : classes) {
+
+ // Look up an existing model resolver instance
+ ModelResolver resolverInstance = resolversByModelType.get(c);
+ if (resolverInstance != null) {
+ return resolverInstance;
+ }
+
+ // We don't have an instance, lookup a model resolver class
+ // and instantiate it
+ Class<? extends ModelResolver> resolverClass = resolverExtensions.getResolver(c);
+ if (resolverClass != null) {
+
+ // Construct the model resolver instance and cache it
+ resolverInstance = resolversByImplementationClass.get(resolverClass);
+ if (resolverInstance != null) {
+ resolversByModelType.put(c, resolverInstance);
+ return resolverInstance;
+ }
+ try {
+ Constructor<? extends ModelResolver> constructor =
+ resolverClass
+ .getConstructor(new Class[] {Contribution.class, FactoryExtensionPoint.class});
+ if (constructor != null) {
+
+ resolverInstance = constructor.newInstance(contribution, modelFactories);
+ resolversByImplementationClass.put(resolverClass, resolverInstance);
+ resolversByModelType.put(c, resolverInstance);
+ return resolverInstance;
+ }
+ } catch (Exception e) {
+ throw new IllegalStateException(e);
+ }
+ }
+ }
+
+ return null;
+ }
+
+ public void addModel(Object resolved) {
+ ModelResolver resolver = getModelResolverInstance(resolved.getClass());
+ if (resolver != null) {
+ resolver.addModel(resolved);
+ } else {
+ map.put(resolved, resolved);
+ }
+ }
+
+ public Object removeModel(Object resolved) {
+ ModelResolver resolver = getModelResolverInstance(resolved.getClass());
+ if (resolver != null) {
+ return resolver.removeModel(resolved);
+ } else {
+ return map.remove(resolved);
+ }
+ }
+
+ public <T> T resolveModel(Class<T> modelClass, T unresolved) {
+ // Protect against dependency cycles causing infinite recursion
+ // Save the current unresolved object and check later if we are trying
+ // to resolve the same object again
+ if (unresolved == lastUnresolved) {
+ return unresolved;
+ }
+ lastUnresolved = unresolved;
+
+ ModelResolver resolver = getModelResolverInstance(unresolved.getClass());
+ if (resolver != null) {
+ Object resolved = resolver.resolveModel(modelClass, unresolved);
+ if (resolved != null && resolved != unresolved) {
+ lastUnresolved = null;
+ return modelClass.cast(resolved);
+ }
+ } else {
+ //FIXME Remove this default resolver, this is currently used to resolve policy declarations
+ // but they should be handled by the contribution import/export mechanism instead of this
+ // defaultResolver hack.
+ if (defaultResolver != null) {
+ Object resolved = defaultResolver.resolveModel(modelClass, unresolved);
+ if (resolved != null && resolved != unresolved) {
+ lastUnresolved = null;
+ return modelClass.cast(resolved);
+ }
+ }
+
+ Object resolved = map.get(unresolved);
+ if (resolved != null) {
+ // Return the resolved object
+ lastUnresolved = null;
+ return modelClass.cast(resolved);
+ }
+ }
+
+ return unresolved;
+ }
+
+ // FIXME: TUSCANY-2499: temporarily give access to the defaultResolver to get the jms binding
+ // use of definitions.xml working while the definitions.xml processing is being refactored
+ public ModelResolver getDefaultModelResolver() {
+ return defaultResolver;
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ModelResolver.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ModelResolver.java
new file mode 100644
index 0000000000..2831bebbc4
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ModelResolver.java
@@ -0,0 +1,69 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.resolver;
+
+/**
+ * A model resolver, responsible for resolving models in the scope of an
+ * SCA contribution.
+ *
+ * SCA Assemblies reference artifacts of a wide variety of types. These
+ * include:
+ * <ul>
+ * <li> Reference from one SCA composite to another SCA composite
+ * <li> Reference to PolicySet files
+ * <li> Reference to interface definition files, either WSDL or Java interfaces
+ * <li> Reference to XSD files
+ * <li> Reference to any of a wide variety of implementation artifact files,
+ * including Java classes, BPEL scripts, C++ DLLs and classes, PHP scripts
+ * </ul>
+ *
+ * In the SCA assemblies, these various artifacts are referenced using either
+ * QNames or logical URIs. Model resolvers are used to resolve these references
+ * and get the in-memory models representing the referenced artifacts.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ModelResolver {
+
+ /**
+ * Resolve the model representing an artifact.
+ *
+ * @param modelClass the type of artifact
+ * @param unresolved the unresolved model
+ * @return the resolved model
+ */
+ <T> T resolveModel(Class<T> modelClass, T unresolved);
+
+ /**
+ * Add a resolved model.
+ *
+ * @param resolved The model
+ */
+ void addModel(Object resolved);
+
+ /**
+ * Remove a resolved model.
+ *
+ * @param resolved
+ * @return The removed model, or null if the model was not removed
+ */
+ Object removeModel(Object resolved);
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ModelResolverExtensionPoint.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ModelResolverExtensionPoint.java
new file mode 100644
index 0000000000..4a25059792
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ModelResolverExtensionPoint.java
@@ -0,0 +1,52 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.resolver;
+
+
+/**
+ * An extension point for model resolvers
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ModelResolverExtensionPoint {
+
+ /**
+ * Register a model resolver class using the model type as the key
+ *
+ * @param modelType The model type
+ * @param resolver The model resolver Class
+ */
+ void addResolver(Class<?> modelType, Class <? extends ModelResolver> resolver);
+
+ /**
+ * Remove the model resolver class for a specific model type
+ *
+ * @param modelType The model type
+ */
+ void removeResolver(Class<?> modelType);
+
+ /**
+ * Retrieve a model resolver class for a specific model type
+ *
+ * @param modelType The model artifact type
+ * @return The model resolver Class
+ */
+ Class <? extends ModelResolver> getResolver(Class<?> modelType);
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ResolverExtension.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ResolverExtension.java
new file mode 100644
index 0000000000..74f0f2d71d
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ResolverExtension.java
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.resolver;
+
+/**
+ * Extension to assembly model implementations to provide a model resolver.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ResolverExtension {
+
+ /**
+ * Returns the model resolver for the models representing the artifacts
+ * visible in the scope of this contribution.
+ *
+ * @return The model resolver
+ */
+ ModelResolver getModelResolver();
+
+ /**
+ * Sets the model resolver for the models representing the artifacts
+ * visible in the scope of this contribution.
+ *
+ * @param modelResolver The model resolver
+ */
+ void setModelResolver(ModelResolver modelResolver);
+
+} \ No newline at end of file
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ResourceReference.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ResourceReference.java
new file mode 100644
index 0000000000..2394f4510b
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ResourceReference.java
@@ -0,0 +1,103 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.resolver;
+
+import java.net.URL;
+
+/**
+ * A resource URL, which should be used to register resources
+ * with an ArtifactResolver and resolve these resources later.
+ *
+ * FIXME Don't use as its deprecated, use Artifact instead.
+ *
+ * @version $Rev$ $Date$
+ */
+@Deprecated
+public class ResourceReference {
+
+ private URL resourceURL;
+ private String resourceName;
+
+ /**
+ * Constructs a new ResourceReference.
+ *
+ * @param resourceName Name of resource
+ * @param resourceURL The resource URL
+ */
+ public ResourceReference(String resourceName, URL resourceURL) {
+ this.resourceURL = resourceURL;
+ this.resourceName = resourceName;
+ }
+
+ /**
+ * Constructs a new ResourceReference.
+ *
+ * @param resourceName Name of resource
+ */
+ public ResourceReference(String resourceName) {
+ this.resourceName = resourceName;
+ }
+
+ /**
+ * Get the resource URL.
+ *
+ * @return The resource URL
+ */
+ public URL getResource() {
+ return resourceURL;
+ }
+
+ /**
+ * Get the resource name.
+ *
+ * @return The resource name
+ */
+ public String getResourceName() {
+ return resourceName;
+ }
+
+ /**
+ * Returns true if the resource reference is unresolved.
+ *
+ * @return Whether or not the resource has been resolved
+ */
+ public boolean isUnresolved() {
+ return resourceURL == null;
+ }
+
+ @Override
+ public int hashCode() {
+ return resourceName.hashCode();
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (obj == this) {
+ return true;
+ } else {
+ if (obj instanceof ResourceReference) {
+ return resourceName.equals(((ResourceReference)obj).resourceName);
+ } else {
+ return false;
+ }
+ }
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/scanner/ContributionScanner.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/scanner/ContributionScanner.java
new file mode 100644
index 0000000000..f84e336e6d
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/scanner/ContributionScanner.java
@@ -0,0 +1,67 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.scanner;
+
+import java.io.IOException;
+import java.net.URL;
+import java.util.List;
+
+import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
+
+/**
+ * Interface for contribution package scanners
+ *
+ * Contribution scanners understand the format of the contribution and how to get the
+ * artifacts in the contribution.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ContributionScanner {
+
+ /**
+ * Returns the type of package supported by this package scanner.
+ *
+ * @return the package type
+ */
+ String getContributionType();
+
+ /**
+ * Returns a list of artifacts in the contribution.
+ *
+ * @param contributionURL Contribution URL
+ * @return List of artifact URIs
+ * @throws ContributionReadException
+ * @throws IOException
+ */
+ List<String> getArtifacts(URL contributionURL) throws ContributionReadException;
+
+ /**
+ * Return the URL for an artifact in the contribution.
+ *
+ * This is needed for archives such as jar files that have specific URL schemes
+ * for the artifacts they contain.
+ *
+ * @param contributionURL Contribution URL
+ * @param artifact The relative URI for the artifact
+ * @throws ContributionReadException
+ * @return The artifact URL
+ */
+ URL getArtifactURL(URL contributionURL, String artifact) throws ContributionReadException;
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/scanner/ContributionScannerExtensionPoint.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/scanner/ContributionScannerExtensionPoint.java
new file mode 100644
index 0000000000..1ca9def4ea
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/scanner/ContributionScannerExtensionPoint.java
@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.contribution.scanner;
+
+/**
+ * An extension point for contribution scanners
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ContributionScannerExtensionPoint {
+
+ /**
+ * Add a ContributionScanner using the contribution type as the key.
+ *
+ * @param scanner The contribution scanner
+ */
+ void addContributionScanner(ContributionScanner scanner);
+
+ /**
+ * Remove a ContributionScanner.
+ *
+ * @param scanner The contribution scanner
+ */
+ void removeContributionScanner(ContributionScanner scanner);
+
+ /**
+ * Returns the ContributionScanner for the given contribution type.
+ *
+ * @param contributionType The contribution type
+ * @return The contribution scanner
+ */
+ ContributionScanner getContributionScanner(String contributionType);
+
+} \ No newline at end of file
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/scanner/DefaultContributionScannerExtensionPoint.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/scanner/DefaultContributionScannerExtensionPoint.java
new file mode 100644
index 0000000000..163f887bbc
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/scanner/DefaultContributionScannerExtensionPoint.java
@@ -0,0 +1,125 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.scanner;
+
+import java.io.IOException;
+import java.lang.reflect.Constructor;
+import java.net.URL;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
+import org.apache.tuscany.sca.extensibility.ServiceDeclaration;
+import org.apache.tuscany.sca.extensibility.ServiceDiscovery;
+
+/**
+ * Default implementation of a contribution scanner extension point.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultContributionScannerExtensionPoint implements ContributionScannerExtensionPoint {
+
+ private Map<String, ContributionScanner> scanners = new HashMap<String, ContributionScanner>();
+ private boolean loaded;
+
+ public DefaultContributionScannerExtensionPoint() {
+ }
+
+ public void addContributionScanner(ContributionScanner scanner) {
+ scanners.put(scanner.getContributionType(), scanner);
+ }
+
+ public void removeContributionScanner(ContributionScanner scanner) {
+ scanners.remove(scanner.getContributionType());
+ }
+
+ public ContributionScanner getContributionScanner(String contentType) {
+ loadScanners();
+ return scanners.get(contentType);
+ }
+
+ private synchronized void loadScanners() {
+ if (loaded)
+ return;
+
+ // Get the scanner service declarations
+ Set<ServiceDeclaration> scannerDeclarations;
+ try {
+ scannerDeclarations = ServiceDiscovery.getInstance().getServiceDeclarations(ContributionScanner.class.getName());
+ } catch (IOException e) {
+ throw new IllegalStateException(e);
+ }
+
+ for (ServiceDeclaration scannerDeclaration: scannerDeclarations) {
+ Map<String, String> attributes = scannerDeclaration.getAttributes();
+
+ // Load a URL artifact scanner
+ String contributionType = attributes.get("type");
+
+ // Create a scanner wrapper and register it
+ ContributionScanner scanner = new LazyContributionScanner(contributionType, scannerDeclaration);
+ addContributionScanner(scanner);
+ }
+
+ loaded = true;
+ }
+
+ /**
+ * A facade for contribution scanners.
+ */
+ private static class LazyContributionScanner implements ContributionScanner {
+
+ private ServiceDeclaration scannerDeclaration;
+ private String contributionType;
+ private ContributionScanner scanner;
+
+ private LazyContributionScanner(String contributionType, ServiceDeclaration scannerDeclaration) {
+ this.scannerDeclaration = scannerDeclaration;
+ this.contributionType = contributionType;
+ }
+
+ public URL getArtifactURL(URL contributionSourceURL, String artifact) throws ContributionReadException {
+ return getScanner().getArtifactURL(contributionSourceURL, artifact);
+ }
+
+ public List<String> getArtifacts(URL contributionSourceURL) throws ContributionReadException {
+ return getScanner().getArtifacts(contributionSourceURL);
+ }
+
+ public String getContributionType() {
+ return contributionType;
+ }
+
+ private ContributionScanner getScanner() {
+ if (scanner == null) {
+ try {
+ Class<ContributionScanner> scannerClass = (Class<ContributionScanner>)scannerDeclaration.loadClass();
+ Constructor<ContributionScanner> constructor = scannerClass.getConstructor();
+ scanner = constructor.newInstance();
+ } catch (Exception e) {
+ throw new IllegalStateException(e);
+ }
+ }
+ return scanner;
+ }
+ }
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.ContributionFactory b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.ContributionFactory
new file mode 100644
index 0000000000..bcc346d9f8
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.ContributionFactory
@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+org.apache.tuscany.sca.contribution.DefaultContributionFactory \ No newline at end of file
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.ContributionPostProcessorExtensionPoint b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.ContributionPostProcessorExtensionPoint
new file mode 100644
index 0000000000..9e6433ba6c
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.ContributionPostProcessorExtensionPoint
@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+org.apache.tuscany.sca.contribution.processor.DefaultContributionPostProcessorExtensionPoint
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint
new file mode 100644
index 0000000000..8ea5fc0a7e
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint
@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+org.apache.tuscany.sca.contribution.processor.DefaultStAXArtifactProcessorExtensionPoint
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXAttributeProcessorExtensionPoint b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXAttributeProcessorExtensionPoint
new file mode 100644
index 0000000000..607725bcfe
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXAttributeProcessorExtensionPoint
@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+org.apache.tuscany.sca.contribution.processor.DefaultStAXAttributeProcessorExtensionPoint
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.URLArtifactProcessorExtensionPoint b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.URLArtifactProcessorExtensionPoint
new file mode 100644
index 0000000000..9d78ca93d0
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.URLArtifactProcessorExtensionPoint
@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+org.apache.tuscany.sca.contribution.processor.DefaultURLArtifactProcessorExtensionPoint
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.ValidatingXMLInputFactory b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.ValidatingXMLInputFactory
new file mode 100644
index 0000000000..f2856cb259
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.ValidatingXMLInputFactory
@@ -0,0 +1,17 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+org.apache.tuscany.sca.contribution.processor.DefaultValidatingXMLInputFactory \ No newline at end of file
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.ValidationSchemaExtensionPoint b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.ValidationSchemaExtensionPoint
new file mode 100644
index 0000000000..ae6e876df6
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.ValidationSchemaExtensionPoint
@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+org.apache.tuscany.sca.contribution.processor.DefaultValidationSchemaExtensionPoint
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.resolver.ModelResolverExtensionPoint b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.resolver.ModelResolverExtensionPoint
new file mode 100644
index 0000000000..4bb65e55e7
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.resolver.ModelResolverExtensionPoint
@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+org.apache.tuscany.sca.contribution.resolver.DefaultModelResolverExtensionPoint
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.scanner.ContributionScannerExtensionPoint b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.scanner.ContributionScannerExtensionPoint
new file mode 100644
index 0000000000..727f8f6ce7
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.scanner.ContributionScannerExtensionPoint
@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+org.apache.tuscany.sca.contribution.scanner.DefaultContributionScannerExtensionPoint
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/contribution-validation-messages.properties b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/contribution-validation-messages.properties
new file mode 100644
index 0000000000..4f9f85048e
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/main/resources/contribution-validation-messages.properties
@@ -0,0 +1,34 @@
+#
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+#
+SchemaError = XMLSchema validation error occured in: {0} ,line = {1}, column = {2}, Message = {3}
+SchemaFatalError = XMLSchema validation fatal error occured in: {0} ,line = {1}, column = {2}, Message = {3}
+SchemaWarning = XMLSchema validation warning occured in: {0} ,line = {1}, column = {2}, Message = {3}
+UnsupportedPackageTypeException = Unsupported contribution package type: {0}
+ElementCannotBeProcessed = Element {0} cannot be processed. ({1})
+AttributeCannotBeProcessed = Attribute {0} cannot be processed. ({1})
+NoStaxProcessor = No StAX processor is configured to handle {0}
+ContributionWriteException = ContributionWriteException occured due to :
+ContributionReadException = ContributionReadException occured due to :
+UnrecognizedElementException = Unrecognized Element : {0}
+IllegalArgumentException = Invalid qname: {0}
+PrivilegedActionException = PrivilegedActionException occured due to :
+AttributeCannotBeProcessed = Attribute {0} cannot be processed. ({1})
+
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/java/org/apache/tuscany/sca/contribution/processor/URLartifactProcessorExtensionPointTestCase.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/java/org/apache/tuscany/sca/contribution/processor/URLartifactProcessorExtensionPointTestCase.java
new file mode 100644
index 0000000000..3b99cc0312
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/java/org/apache/tuscany/sca/contribution/processor/URLartifactProcessorExtensionPointTestCase.java
@@ -0,0 +1,113 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.processor;
+
+import static org.junit.Assert.assertNotNull;
+
+import java.net.URI;
+import java.net.URL;
+
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.core.DefaultExtensionPointRegistry;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+/**
+ * URL Artifact Processor Extension Point test case
+ * Verifies the right registration and lookup for processors that handle filename and file types
+ *
+ * @version $Rev$ $Date$
+ */
+public class URLartifactProcessorExtensionPointTestCase {
+
+ private static URLArtifactProcessorExtensionPoint artifactProcessors;
+
+ @BeforeClass
+ public static void setUp() throws Exception {
+ ExtensionPointRegistry extensionPoints = new DefaultExtensionPointRegistry();
+ artifactProcessors = new DefaultURLArtifactProcessorExtensionPoint(extensionPoints);
+ artifactProcessors.addArtifactProcessor(new FileTypeArtifactProcessor());
+ artifactProcessors.addArtifactProcessor(new FileNameArtifactProcessor());
+ }
+
+ @Test
+ public final void testFileTypeProcessor() {
+ assertNotNull(artifactProcessors.getProcessor(".m1"));
+ }
+
+ @Test
+ public final void testFileNameProcessor() {
+ assertNotNull(artifactProcessors.getProcessor("file.m2"));
+
+ }
+
+ /**
+ * Internal mock classes
+ *
+ */
+
+ private class M1 {
+ }
+
+ private class M2 {
+ }
+
+ private static class FileTypeArtifactProcessor implements URLArtifactProcessor<M1> {
+ public FileTypeArtifactProcessor() {
+ }
+
+ public M1 read(URL contributionURL, URI uri, URL url) throws ContributionReadException {
+ return null;
+ }
+
+ public void resolve(M1 m1, ModelResolver resolver) throws ContributionResolveException {
+ }
+
+ public String getArtifactType() {
+ return ".m1";
+ }
+
+ public Class<M1> getModelType() {
+ return M1.class;
+ }
+ }
+
+ private static class FileNameArtifactProcessor implements URLArtifactProcessor<M2> {
+ public FileNameArtifactProcessor() {
+ }
+
+ public M2 read(URL contributionURL, URI uri, URL url) throws ContributionReadException {
+ return null;
+ }
+
+ public void resolve(M2 m2, ModelResolver resolver) throws ContributionResolveException {
+ }
+
+ public String getArtifactType() {
+ return "file.m2";
+ }
+
+ public Class<M2> getModelType() {
+ return M2.class;
+ }
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/java/org/apache/tuscany/sca/contribution/resolver/DefaultModelResolverTestCase.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/java/org/apache/tuscany/sca/contribution/resolver/DefaultModelResolverTestCase.java
new file mode 100644
index 0000000000..b778167217
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/java/org/apache/tuscany/sca/contribution/resolver/DefaultModelResolverTestCase.java
@@ -0,0 +1,91 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.resolver;
+
+import static org.junit.Assert.assertTrue;
+
+import org.apache.tuscany.sca.contribution.Artifact;
+import org.apache.tuscany.sca.contribution.ContributionFactory;
+import org.apache.tuscany.sca.contribution.DefaultContributionFactory;
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * Test the default model resolver implementation.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultModelResolverTestCase {
+
+ private ModelResolver resolver;
+ private ContributionFactory factory;
+
+ @Before
+ public void setUp() throws Exception {
+ resolver = new DefaultModelResolver();
+ factory = new DefaultContributionFactory();
+ }
+
+ @Test
+ public void testResolved() {
+ Model a = new Model("a");
+ resolver.addModel(a);
+ Model x = new Model("a");
+ x = resolver.resolveModel(Model.class, x);
+ assertTrue(x == a);
+ }
+
+ @Test
+ public void testUnresolved() {
+ Model x = new Model("a");
+ Model y = resolver.resolveModel(Model.class, x);
+ assertTrue(x == y);
+ }
+
+ @Test
+ public void testResolvedArtifact() {
+ Artifact artifact = factory.createArtifact();
+ artifact.setURI("foo/bar");
+ resolver.addModel(artifact);
+ Artifact x = factory.createArtifact();
+ x.setURI("foo/bar");
+ x = resolver.resolveModel(Artifact.class, x);
+ assertTrue(x == artifact);
+ }
+
+ class Model {
+ private String name;
+
+ Model(String name) {
+ this.name = name;
+ }
+
+ @Override
+ public int hashCode() {
+ return name.hashCode();
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ return name.equals(((Model)obj).name);
+ }
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/java/org/apache/tuscany/sca/contribution/resolver/ExtensibleModelResolverTestCase.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/java/org/apache/tuscany/sca/contribution/resolver/ExtensibleModelResolverTestCase.java
new file mode 100644
index 0000000000..2422c8fb94
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/java/org/apache/tuscany/sca/contribution/resolver/ExtensibleModelResolverTestCase.java
@@ -0,0 +1,134 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements. See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership. The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License. You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied. See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+package org.apache.tuscany.sca.contribution.resolver;
+
+import static org.junit.Assert.assertTrue;
+
+import org.apache.tuscany.sca.contribution.Artifact;
+import org.apache.tuscany.sca.contribution.ContributionFactory;
+import org.apache.tuscany.sca.contribution.DefaultContributionFactory;
+import org.apache.tuscany.sca.core.DefaultExtensionPointRegistry;
+import org.apache.tuscany.sca.core.DefaultFactoryExtensionPoint;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * Test DefaultArtifactResolver.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ExtensibleModelResolverTestCase {
+ private ExtensibleModelResolver resolver;
+
+ private ContributionFactory factory;
+
+ @Before
+ public void setUp() throws Exception {
+
+ ModelResolverExtensionPoint resolvers = new DefaultModelResolverExtensionPoint();
+ resolvers.addResolver(Model.class, TestModelResolver.class);
+
+ FactoryExtensionPoint factories = new DefaultFactoryExtensionPoint(new DefaultExtensionPointRegistry());
+
+ resolver = new ExtensibleModelResolver(null, resolvers, factories, null);
+
+ factory = new DefaultContributionFactory();
+ }
+
+ @Test
+ public void testResolvedDefault() {
+ OtherModel a = new OtherModel("a");
+ resolver.addModel(a);
+ OtherModel x = new OtherModel("a");
+ x = resolver.resolveModel(OtherModel.class, x);
+ assertTrue(x == a);
+ }
+
+ @Test
+ public void testResolvedRegisteredClass() {
+ Model a = new Model("a");
+ resolver.addModel(a);
+ Model x = new Model("a");
+ x = resolver.resolveModel(Model.class, x);
+ assertTrue(x == a);
+ }
+
+ @Test
+ public void testUnresolvedDefault() {
+ OtherModel x = new OtherModel("a");
+ OtherModel y = resolver.resolveModel(OtherModel.class, x);
+ assertTrue(x == y);
+ }
+
+ @Test
+ public void testUnresolved() {
+ Model x = new Model("a");
+ Model y = resolver.resolveModel(Model.class, x);
+ assertTrue(x == y);
+ }
+
+ @Test
+ public void testResolvedArtifact() {
+ Artifact artifact = factory.createArtifact();
+ artifact.setURI("foo/bar");
+ resolver.addModel(artifact);
+ Artifact x = factory.createArtifact();
+ x.setURI("foo/bar");
+ x = resolver.resolveModel(Artifact.class, x);
+ assertTrue(x == artifact);
+ }
+
+ private class Model {
+ private String name;
+
+ Model(String name) {
+ this.name = name;
+ }
+
+ @Override
+ public int hashCode() {
+ return name.hashCode();
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ return name.equals(((Model)obj).name);
+ }
+ }
+
+ private class OtherModel {
+ private String name;
+
+ OtherModel(String name) {
+ this.name = name;
+ }
+
+ @Override
+ public int hashCode() {
+ return name.hashCode();
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ return name.equals(((OtherModel)obj).name);
+ }
+ }
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/java/org/apache/tuscany/sca/contribution/resolver/TestModelResolver.java b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/java/org/apache/tuscany/sca/contribution/resolver/TestModelResolver.java
new file mode 100644
index 0000000000..cd586d3b2c
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/java/org/apache/tuscany/sca/contribution/resolver/TestModelResolver.java
@@ -0,0 +1,58 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.contribution.resolver;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+
+/**
+ * A test implementation of a model resolver, based on a map.
+ *
+ * @version $Rev$ $Date$
+ */
+public class TestModelResolver implements ModelResolver {
+
+ private Map<Object, Object> map = new HashMap<Object, Object>();
+
+ public TestModelResolver(Contribution contribution, FactoryExtensionPoint modelFactories) {
+ }
+
+ public <T> T resolveModel(Class<T> modelClass, T unresolved) {
+ Object resolved = map.get(unresolved);
+ if (resolved != null) {
+ // Return the resolved object
+ return modelClass.cast(resolved);
+ }
+ // Return the unresolved object
+ return unresolved;
+ }
+
+ public void addModel(Object resolved) {
+ map.put(resolved, resolved);
+ }
+
+ public Object removeModel(Object resolved) {
+ return map.remove(resolved);
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/resources/deployables/sample-calculator.jar b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/resources/deployables/sample-calculator.jar
new file mode 100644
index 0000000000..0ca3a1b781
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/resources/deployables/sample-calculator.jar
Binary files differ
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/resources/repository/sample-calculator.jar b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/resources/repository/sample-calculator.jar
new file mode 100644
index 0000000000..9c46c679d2
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/resources/repository/sample-calculator.jar
Binary files differ
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/resources/test.composite b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/resources/test.composite
new file mode 100644
index 0000000000..1e09549194
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/resources/test.composite
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+-->
+<composite>
+ This file just needs to exist
+</composite> \ No newline at end of file
diff --git a/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/resources/test.ext b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/resources/test.ext
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/sandbox/ant/sca/branches/2.0-M2/modules/contribution/src/test/resources/test.ext