Create M2 relese branch

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@759448 13f79535-47bb-0310-9956-ffa450edef68

21 files changed, 2390 insertions, 0 deletions

diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/BPELFactory.java b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/BPELFactory.java
new file mode 100644
index 0000000000..9f8f9c0e9a
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/BPELFactory.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.implementation.bpel;
+
+/**
+ * A factory for the BPEL implementation model.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface BPELFactory {
+    
+    /**
+     * Creates a new BPEL implementation.
+     * 
+     * @return
+     */
+    BPELImplementation createBPELImplementation();
+
+    /**
+     * Creates a new BPEL Process Definition
+     * 
+     * @return
+     */
+    BPELProcessDefinition createBPELProcessDefinition();
+}
diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/BPELImplementation.java b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/BPELImplementation.java
new file mode 100644
index 0000000000..d54add5391
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/BPELImplementation.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.implementation.bpel;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.ComponentType;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+
+/**
+ * The model representing the BPEL implementation in an SCA assembly model.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface BPELImplementation extends Implementation {
+
+    /**
+     * Get the BPEL process Name
+     * 
+     * @return
+     */
+    QName getProcess();
+    
+    /**
+     * Set the BPEL process Name
+     * 
+     * @param processName process QName
+     */
+    void setProcess(QName processName);
+    
+    /**
+     * Get the BPEL process definition
+     * 
+     * @return
+     */
+    BPELProcessDefinition getProcessDefinition();
+    
+    /**
+     * Set the BPEL process definition
+     * 
+     * @param processDefinition
+     */
+    void setProcessDefinition(BPELProcessDefinition processDefinition);
+    
+    /** 
+     * Returns the componentType for this implementation.
+     * 
+     *  @return
+     */
+    public ComponentType getComponentType(); 
+
+    /**
+     * Sets the componentType for this implementation
+     * 
+     * @param componentType the component type to set
+     */
+    public void setComponentType(ComponentType componentType); 
+
+    /**
+     * Returns the model resolver that can be used to resolve WSDLs and XSDs
+     * referenced by the BPEL process.
+     * 
+     * @return
+     */
+    ModelResolver getModelResolver();
+
+    /**
+     * Sets the model resolver that can be used to resolve WSDLs and XSDs referenced
+     * by the BPEL process.
+     * 
+     * @param modelResolver
+     */
+    void setModelResolver(ModelResolver modelResolver);
+}
diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/BPELProcessDefinition.java b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/BPELProcessDefinition.java
new file mode 100644
index 0000000000..1f927f4648
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/BPELProcessDefinition.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.implementation.bpel;
+
+import java.util.List;
+
+import javax.wsdl.PortType;
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.Base;
+import org.apache.tuscany.sca.implementation.bpel.xml.BPELImportElement;
+import org.apache.tuscany.sca.implementation.bpel.xml.BPELPartnerLinkElement;
+import org.apache.tuscany.sca.interfacedef.wsdl.WSDLInterface;
+
+/**
+ * The model representing a BPEL process definition.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface BPELProcessDefinition extends Base {
+
+    /**
+     * Get the BPEL process Name
+     * 
+     * @return
+     */
+    QName getName();
+
+    /**
+     * Set the BPEL process Name
+     * 
+     * @param processName process QName
+     */
+    void setName(QName name);
+
+    /**
+     * Get BPEL process URI
+     * 
+     * @return URI for the process
+     */
+    String getURI();
+
+    /**
+     * Set the BPEL process URI
+     * 
+     * @param uri for the process
+     */
+    void setURI(String uri);
+
+    /**
+     * Get the URL for the process location
+     * 
+     * @return
+     */
+    String getLocation();
+
+    /**
+     * Set the URL for the process location
+     * 
+     * @param url
+     */
+    void setLocation(String location);
+    
+    /**
+     * Return the list of PartnerLinks for this process
+     * 
+     * @return
+     */
+    List<BPELPartnerLinkElement> getPartnerLinks();
+    
+    /**
+     * Return the list of imports for this process
+     * 
+     * @return
+     */
+    List<BPELImportElement> getImports();
+    
+    /**
+     * Return the collection of associated port types
+     * 
+     * @return
+     */
+    public List<PortType> getPortTypes() ;
+    
+    /**
+     * Return the collection of associated WSDL interfaces
+     * @return
+     */
+    public List<WSDLInterface> getInterfaces() ;
+}
diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/impl/BPELFactoryImpl.java b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/impl/BPELFactoryImpl.java
new file mode 100644
index 0000000000..f9b95c7da8
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/impl/BPELFactoryImpl.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.implementation.bpel.impl;
+
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.implementation.bpel.BPELFactory;
+import org.apache.tuscany.sca.implementation.bpel.BPELImplementation;
+import org.apache.tuscany.sca.implementation.bpel.BPELProcessDefinition;
+
+/**
+ * A factory for the BPEL implementation model.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class BPELFactoryImpl implements BPELFactory {
+    
+    public BPELFactoryImpl(FactoryExtensionPoint modelFactories) {
+    }
+
+    public BPELImplementation createBPELImplementation() {
+        return new BPELImplementationImpl();
+    }
+
+    public BPELProcessDefinition createBPELProcessDefinition() {
+        return new BPELProcessDefinitionImpl();
+    }
+
+}
diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/impl/BPELImplementationImpl.java b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/impl/BPELImplementationImpl.java
new file mode 100644
index 0000000000..f1c943e49c
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/impl/BPELImplementationImpl.java
@@ -0,0 +1,132 @@
+/*
+ * 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.implementation.bpel.impl;
+
+import java.util.Collections;
+import java.util.List;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.ComponentType;
+import org.apache.tuscany.sca.assembly.ConstrainingType;
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.impl.ImplementationImpl;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.implementation.bpel.BPELImplementation;
+import org.apache.tuscany.sca.implementation.bpel.BPELProcessDefinition;
+
+/**
+ * The model representing a BPEL implementation in an SCA assembly model.
+ * 
+ * @version $Rev$ $Date$
+ */
+class BPELImplementationImpl extends ImplementationImpl implements BPELImplementation {
+
+    private QName processName;
+    private BPELProcessDefinition processDefinition;
+    private ComponentType componentType;
+    private ModelResolver modelResolver;
+
+    public QName getProcess() {
+        return processName;
+    }
+    
+    public void setProcess(QName processName) {
+        this.processName = processName;
+    }
+
+    public BPELProcessDefinition getProcessDefinition() {
+        return this.processDefinition;
+    }
+
+    public void setProcessDefinition(BPELProcessDefinition processDefinition) {
+        this.processDefinition = processDefinition;
+    }
+
+    @Override
+    public String getURI() {
+        // The BPEL implementation does not have a URI
+        return null;
+    }
+
+    @Override
+    public void setURI(String uri) {
+        // The BPEL implementation does not have a URI
+    }
+
+    @Override
+    public ConstrainingType getConstrainingType() {
+        // The BPEL implementation does not support constrainingTypes
+        return null;
+    }
+
+    @Override
+    public List<Property> getProperties() {
+        // The BPEL implementation does not support properties
+        return Collections.emptyList();
+    }
+    
+    public ComponentType getComponentType() {
+        return componentType;
+    }
+
+    public void setComponentType(ComponentType componentType) {
+        this.componentType = componentType;
+    }
+    
+    public ModelResolver getModelResolver() {
+        return modelResolver;
+    }
+    
+    public void setModelResolver(ModelResolver modelResolver) {
+        this.modelResolver = modelResolver;
+    }
+    
+    @Override
+    public List<Service> getServices() {
+        return componentType.getServices();
+    }
+
+    @Override
+    public List<Reference> getReferences() {
+        return componentType.getReferences();
+    }
+    
+    @Override
+    public int hashCode() {
+        return String.valueOf(this.getProcess()).hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == this) {
+            return true;
+        } else if (obj instanceof BPELImplementation) {
+            if (getProcess() != null) {
+                return getProcess().equals(((BPELImplementation)obj).getProcess());
+            } else {
+                return ((BPELImplementation)obj).getProcess() == null;
+            }
+        } else {
+            return false;
+        }
+    }
+}
diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/impl/BPELProcessDefinitionImpl.java b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/impl/BPELProcessDefinitionImpl.java
new file mode 100644
index 0000000000..dcd0f71ea7
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/impl/BPELProcessDefinitionImpl.java
@@ -0,0 +1,115 @@
+/*
+ * 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.implementation.bpel.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.wsdl.PortType;
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.implementation.bpel.BPELProcessDefinition;
+import org.apache.tuscany.sca.implementation.bpel.xml.BPELImportElement;
+import org.apache.tuscany.sca.implementation.bpel.xml.BPELPartnerLinkElement;
+import org.apache.tuscany.sca.interfacedef.wsdl.WSDLInterface;
+
+/**
+ * The BPEL process definition implementation.
+ * 
+ * @version $Rev$ $Date$
+ */
+class BPELProcessDefinitionImpl implements BPELProcessDefinition {
+    private QName name;
+    private String uri;
+    private String location;
+    private boolean unresolved;
+    private List<BPELPartnerLinkElement> partnerLinks = new ArrayList<BPELPartnerLinkElement>();
+    private List<BPELImportElement> imports = new ArrayList<BPELImportElement>();
+    private List<PortType> thePortTypes = new ArrayList<PortType>();
+    private List<WSDLInterface> theInterfaces = new ArrayList<WSDLInterface>();
+    
+    public QName getName() {
+        return name;
+    }
+
+    public void setName(QName name) {
+        this.name = name;
+    }
+
+    public String getURI() {
+        return uri;
+    }
+    
+    public void setURI(String uri) {
+        this.uri = uri;
+    }
+    
+    public String getLocation() {
+        return location;
+    }
+
+    public void setLocation(String location) {
+        this.location = location; 
+    }
+
+    public boolean isUnresolved() {
+        return unresolved;
+    }
+
+    public void setUnresolved(boolean undefined) {
+        this.unresolved = undefined;
+    }  
+    
+    public List<BPELPartnerLinkElement> getPartnerLinks() {
+    	return partnerLinks;
+    }
+    
+    public List<BPELImportElement> getImports() {
+    	return imports;
+    }
+    
+    public List<PortType> getPortTypes() {
+    	return thePortTypes;
+    }
+    
+    public List<WSDLInterface> getInterfaces() {
+    	return theInterfaces;
+    }
+    
+    @Override
+    public int hashCode() {
+        return String.valueOf(getName()).hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == this) {
+            return true;
+        } else if (obj instanceof BPELProcessDefinition) {
+            if (getName() != null) {
+                return getName().equals(((BPELProcessDefinition)obj).getName());
+            } else {
+                return ((BPELProcessDefinition)obj).getName() == null;
+            }
+        } else {
+            return false;
+        }
+    }
+}
diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELDocumentModelResolver.java b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELDocumentModelResolver.java
new file mode 100644
index 0000000000..9e586e1f4f
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELDocumentModelResolver.java
@@ -0,0 +1,83 @@
+/*
+ * 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.implementation.bpel.xml;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.Import;
+import org.apache.tuscany.sca.contribution.namespace.NamespaceImport;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.implementation.bpel.BPELProcessDefinition;
+
+/**
+ * A Model Resolver for BPEL process models.
+ *
+ * @version $Rev$ $Date$
+ */
+public class BPELDocumentModelResolver implements ModelResolver {
+
+    private Contribution contribution;
+    private Map<QName, BPELProcessDefinition> map = new HashMap<QName, BPELProcessDefinition>();
+    
+    public BPELDocumentModelResolver(Contribution contribution, FactoryExtensionPoint modelFactories) {
+        this.contribution = contribution;
+    }
+
+    public void addModel(Object resolved) {
+        BPELProcessDefinition process = (BPELProcessDefinition)resolved;
+        map.put(process.getName(), process);
+    }
+    
+    public Object removeModel(Object resolved) {
+        return map.remove(((BPELProcessDefinition)resolved).getName());
+    }
+    
+    public <T> T resolveModel(Class<T> modelClass, T unresolved) {
+        
+        // Lookup a definition for the given namespace
+        QName qname = ((BPELProcessDefinition)unresolved).getName();
+        BPELProcessDefinition resolved = (BPELProcessDefinition) map.get(qname);
+        if (resolved != null) {
+            return modelClass.cast(resolved);
+        }
+        
+        // No definition found, delegate the resolution to the imports
+        for (Import import_ : this.contribution.getImports()) {
+            if (import_ instanceof NamespaceImport) {
+                NamespaceImport namespaceImport = (NamespaceImport)import_;
+                if (namespaceImport.getNamespace().equals(qname.getNamespaceURI())) {
+                    
+                    // Delegate the resolution to the import resolver
+                    resolved = namespaceImport.getModelResolver().resolveModel(BPELProcessDefinition.class, (BPELProcessDefinition)unresolved);
+                    if (!resolved.isUnresolved()) {
+                        return modelClass.cast(resolved);
+                    }
+                }
+            }
+        }
+        return (T)unresolved;
+    }
+    
+}
diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELDocumentProcessor.java b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELDocumentProcessor.java
new file mode 100644
index 0000000000..43606cb216
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELDocumentProcessor.java
@@ -0,0 +1,532 @@
+/*
+ * 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.implementation.bpel.xml;
+
+import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
+import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
+
+import java.io.InputStream;
+import java.net.URI;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.List;
+
+import javax.wsdl.Definition;
+import javax.wsdl.PortType;
+import javax.wsdl.extensions.ExtensibilityElement;
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.tuscany.sca.contribution.processor.BaseStAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
+import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
+import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.implementation.bpel.BPELFactory;
+import org.apache.tuscany.sca.implementation.bpel.BPELProcessDefinition;
+import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
+import org.apache.tuscany.sca.interfacedef.wsdl.BPELPartnerLinkTypeExt;
+import org.apache.tuscany.sca.interfacedef.wsdl.WSDLDefinition;
+import org.apache.tuscany.sca.interfacedef.wsdl.WSDLFactory;
+import org.apache.tuscany.sca.interfacedef.wsdl.WSDLInterface;
+import org.apache.tuscany.sca.interfacedef.wsdl.WSDLObject;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+
+/**
+ * BPEL document processor responsible for reading a BPEL file and producing necessary model info about it
+ * 
+ * TODO: The namespaces for WS-BPEL include 2 versions - only the earlier BPEL 1.1 versions are
+ * supported at present - the BPEL 2.0 namespaces also need support.  This will require inspection
+ * of both BPEL process files and of WSDL files for their BPEL namespaces
+ * @version $Rev$ $Date$
+ */
+public class BPELDocumentProcessor extends BaseStAXArtifactProcessor implements URLArtifactProcessor<BPELProcessDefinition> {
+    public final static QName BPEL_PROCESS_DEFINITION = new QName("http://schemas.xmlsoap.org/ws/2004/03/business-process/", "process");
+    public final static QName BPEL_EXECUTABLE_DEFINITION = new QName("http://docs.oasis-open.org/wsbpel/2.0/process/executable", "process");
+    private static final String SCA_BPEL_NS = "http://docs.oasis-open.org/ns/opencsa/sca-bpel/200801";
+    private static final String BPEL_NS = "http://schemas.xmlsoap.org/ws/2004/03/business-process/";
+    private static final String BPEL_PLINK_NS = "http://schemas.xmlsoap.org/ws/2004/03/partner-link/";
+    private static final String WSDL_NS = "http://schemas.xmlsoap.org/wsdl/";
+    private static final QName PROCESS_ELEMENT = new QName(BPEL_NS, "process");
+    private static final QName PARTNERLINK_ELEMENT = new QName(BPEL_NS, "partnerLink");
+    private static final QName ONEVENT_ELEMENT = new QName(BPEL_NS, "onEvent");
+    private static final QName RECEIVE_ELEMENT = new QName(BPEL_NS, "receive");
+    private static final QName ONMESSAGE_ELEMENT = new QName(BPEL_NS, "onMessage");
+    private static final QName INVOKE_ELEMENT = new QName(BPEL_NS, "invoke");
+    private static final QName IMPORT_ELEMENT = new QName(BPEL_NS, "import");
+    private static final String LINKTYPE_NAME = "partnerLinkType";
+    private static final QName LINKTYPE_ELEMENT = new QName(BPEL_PLINK_NS, LINKTYPE_NAME);
+    private final static String NAME_ELEMENT = "name";
+    private final static String TARGET_NAMESPACE = "targetNamespace";
+    
+    private final static XMLInputFactory inputFactory = XMLInputFactory.newInstance();
+    
+    private final BPELFactory factory;
+    private WSDLFactory WSDLfactory;
+    private Monitor monitor;
+
+    public BPELDocumentProcessor(FactoryExtensionPoint modelFactories, Monitor monitor) {
+        this.factory     = modelFactories.getFactory(BPELFactory.class);
+        this.WSDLfactory = modelFactories.getFactory(WSDLFactory.class);
+        this.monitor = monitor;
+    }
+    
+    public String getArtifactType() {
+        return "*.bpel";
+    }    
+
+    public Class<BPELProcessDefinition> getModelType() {
+        return BPELProcessDefinition.class;
+    }
+
+    public BPELProcessDefinition read(URL contributionURL, URI artifactURI, URL artifactURL) throws ContributionReadException {
+        BPELProcessDefinition processDefinition = null;
+        try {
+            // for now we are just using process name
+            // and relying on componentType file for service definition
+            // so it's OK to set resolved for now
+            processDefinition = readProcessDefinition(artifactURL);
+            processDefinition.setURI(artifactURI.toString());
+            processDefinition.setUnresolved(false);
+        } catch (Exception e) {
+            ContributionReadException ce = new ContributionReadException(e);
+            error("ContributionReadException", artifactURL, ce);
+        }
+
+        return processDefinition;
+    }
+
+    public void resolve(BPELProcessDefinition model, ModelResolver resolver) throws ContributionResolveException {
+        // FIXME - serious resolving needs to happen here
+    	
+    	// Step 1 is to resolve the WSDL files referenced from this BPEL process
+    	// - one complexity here is that the WSDL definitions hold BPEL extension elements for
+    	// the partnerLinkType declarations - and these must be used in later steps
+    	//
+    	// Step 2 is to take all the partnerLink definitions and establish the PortType being
+    	// used, by tracing through the related partnerLinkType declarations - the PortType is
+    	// effectively a definition of the interface used by the partnerLink.
+    	// - another consideration here is that each partnerLink can involve 2 interfaces, one
+    	// for the forward calls to the process, the other for calls from the process - depending
+    	// on whether the partnerLink is a reference or a service, one of these interfaces is a
+    	// callback interface.
+    	
+    	List<BPELImportElement> theImports = model.getImports();
+        for (BPELImportElement theImport : theImports) {
+
+            // Deal with WSDL imports
+            if (theImport.getImportType().equals(WSDL_NS)) {
+                String wsdlLocation = theImport.getLocation();
+                String wsdlNamespace = theImport.getNamespace();
+
+                // Resolve the WSDL definition
+                WSDLDefinition proxy = WSDLfactory.createWSDLDefinition();
+                proxy.setUnresolved(true);
+                proxy.setNamespace(wsdlNamespace);
+                if (wsdlLocation != null) {
+                    proxy.setLocation(URI.create(wsdlLocation));
+                }
+                WSDLDefinition resolved = resolver.resolveModel(WSDLDefinition.class, proxy);
+                if (resolved != null && !resolved.isUnresolved()) {
+                    theImport.setWSDLDefinition(resolved);
+                } else {
+                    error("CannotResolveWSDLReference", resolver, wsdlLocation, wsdlNamespace);
+                    return;
+                } // end if
+            } // end if
+        } // end for
+    	
+    	// Fetch the sets of partner links, port types and interfaces
+    	List<BPELPartnerLinkTypeElement> thePLinkTypes = getPartnerLinkTypes( theImports );
+    	Collection<WSDLInterface> theInterfaces = (Collection<WSDLInterface>)new ArrayList<WSDLInterface>();
+    	Collection<PortType> thePortTypes = getAllPortTypes( theImports, theInterfaces, resolver );
+    	
+    	// Store the Port Types and the Interfaces for later calculation of the component type...
+    	model.getPortTypes().addAll(thePortTypes);
+    	model.getInterfaces().addAll(theInterfaces);
+    	
+    	// Now, for each partnerLink in the BPEL process, find the related partnerLinkType
+    	// element 
+        List<BPELPartnerLinkElement> thePartnerLinks = model.getPartnerLinks();
+        for (BPELPartnerLinkElement thePartnerLink : thePartnerLinks) {
+            QName partnerLinkType = thePartnerLink.getPartnerLinkType();
+            BPELPartnerLinkTypeElement pLinkType = findPartnerLinkType(partnerLinkType, thePLinkTypes);
+            if (pLinkType == null) {
+                error("PartnerLinkNoMatchingType", thePartnerLink, thePartnerLink.getName());
+            } else
+                thePartnerLink.setPartnerLinkType(pLinkType);
+        } // end for
+    	
+    } // end resolve
+    
+    /**
+     * Retrieve all the Partner Link types defined in the imported WSDL files
+     * 
+     * @param theImports
+     */
+    private List<BPELPartnerLinkTypeElement> getPartnerLinkTypes( List<BPELImportElement> theImports) throws ContributionResolveException {
+    	
+    	List<BPELPartnerLinkTypeElement> thePLinks = new ArrayList<BPELPartnerLinkTypeElement>();
+
+        // We must find the partner link type elements from amongst the imported
+        // WSDLs
+        for (BPELImportElement theImport : theImports) {
+            if (theImport.getImportType().equals(WSDL_NS)) {
+
+                // Find all the WSDL definitions matching the imported namespace
+                List<Definition> wsdlDefinitions = new ArrayList<Definition>();
+                WSDLDefinition theWSDL = theImport.getWSDLDefinition();
+                wsdlDefinitions.add(theWSDL.getDefinition());
+                for (WSDLDefinition importedWSDL: theWSDL.getImportedDefinitions()) {
+                    wsdlDefinitions.add(importedWSDL.getDefinition());
+                }
+
+                // The BPEL partnerLinkType elements are extension elements within
+                // the WSDL definitions
+                for (Definition wsdlDefinition: wsdlDefinitions) {
+                    for (ExtensibilityElement theElement : (List<ExtensibilityElement>)wsdlDefinition.getExtensibilityElements()) {
+                        QName elementType = theElement.getElementType();
+                        if (elementType.equals(LINKTYPE_ELEMENT)) {
+                            BPELPartnerLinkTypeExt pLinkExt = (BPELPartnerLinkTypeExt)theElement;
+                            
+                            // Fetch the name of the partnerLinkType
+                            String name = pLinkExt.getName();
+                            QName qName = new QName(wsdlDefinition.getTargetNamespace(), name);
+                            BPELPartnerLinkTypeElement pLinkElement = new BPELPartnerLinkTypeElement(qName);
+
+                            // The partnerLinkType must have one and may have 2 role
+                            // child elements
+                            int count = 0;
+                            for (int i = 0; i < 2; i++) {
+                                if (pLinkExt.getRoleName(i) == null)
+                                    continue;
+                                PortType pType = wsdlDefinition.getPortType(pLinkExt.getRolePortType(i));
+                                if (count == 0) {
+                                    pLinkElement.setRole1(pLinkExt.getRoleName(i), pLinkExt.getRolePortType(i), pType);
+                                    count++;
+                                } else if (count == 1) {
+                                    pLinkElement.setRole2(pLinkExt.getRoleName(i), pLinkExt.getRolePortType(i), pType);
+                                    count++;
+                                } else {
+                                    break;
+                                } // end if
+                            } // end for
+
+                            if (count == 0) {
+                                error("PartnerLinkTypeNoRoles", theElement, pLinkElement.getName());
+                                throw new ContributionResolveException("partnerLinkType " + pLinkElement.getName() + " has no Roles defined");
+                            } else
+                                thePLinks.add(pLinkElement);
+                        } // end if
+
+                    } // end for
+                }
+            }
+        } // end for
+        return thePLinks;
+    } // end getPartnerLinkTypes
+
+    /**
+     * Returns all the portTypes referenced by the process.
+     * 
+     * @param theImports
+     * @param theInterfaces
+     * @param resolver
+     * @return
+     * @throws ContributionResolveException
+     */
+    private Collection<PortType> getAllPortTypes(List<BPELImportElement> theImports,
+                                                 Collection<WSDLInterface> theInterfaces, ModelResolver resolver) throws ContributionResolveException {
+
+        Collection<PortType> thePortTypes = (Collection<PortType>)new ArrayList<PortType>();
+        for (BPELImportElement theImport : theImports) {
+            if (theImport.getImportType().equals(WSDL_NS)) {
+                
+                // Find all the WSDL definitions matching the imported namespace
+                List<Definition> wsdlDefinitions = new ArrayList<Definition>();
+                WSDLDefinition theWSDL = theImport.getWSDLDefinition();
+                wsdlDefinitions.add(theWSDL.getDefinition());
+                for (WSDLDefinition importedWSDL: theWSDL.getImportedDefinitions()) {
+                    wsdlDefinitions.add(importedWSDL.getDefinition());
+                }
+                for (Definition wsdlDefinition: wsdlDefinitions) {
+
+                    Collection<PortType> portTypes = (Collection<PortType>)wsdlDefinition.getPortTypes().values();
+                    thePortTypes.addAll(portTypes);
+
+                    // Create WSDLInterface elements for each PortType found
+                    for (PortType portType : portTypes) {
+                        WSDLObject<PortType> wsdlPortType = theWSDL.getWSDLObject(PortType.class, portType.getQName());
+                        WSDLInterface wsdlInterface;
+                        if (wsdlPortType != null) {
+                            // Introspect the WSDL portType and add the resulting
+                            // WSDLInterface to the resolver
+                            try {
+                                theWSDL.setDefinition(wsdlPortType.getDefinition());
+                                wsdlInterface = WSDLfactory.createWSDLInterface(wsdlPortType.getElement(), theWSDL, resolver);
+                                wsdlInterface.setWsdlDefinition(theWSDL);
+                            } catch (InvalidInterfaceException e) {
+                                ContributionResolveException ce = new ContributionResolveException(e);
+                                error("ContributionResolveException", resolver, ce);
+                                throw ce;
+                            } // end try
+                            resolver.addModel(wsdlInterface);
+                            theInterfaces.add(wsdlInterface);
+                        } // end if
+                    } // end for
+                }
+            }
+        } // end for
+
+        return thePortTypes;
+    } // end getAllPortTypes
+    
+    /**
+     * Finds a partnerLinkType definition within the WSDLs imported by the BPEL
+     * process.
+     * 
+     * @param partnerLinkTypeName - the name of the partnerLinkType
+     * @param theImports a list of the WSDL import declarations
+     * @return a BPELPartnerLinkTypeElement for the partnerLinkType or null if it cannot be
+     * found
+     */
+    private BPELPartnerLinkTypeElement findPartnerLinkType( QName partnerLinkTypeName, 
+                                                            List<BPELPartnerLinkTypeElement> thePLinkTypes) {
+    	// We must find the partner link type element from amongst the imported WSDLs
+    	for ( BPELPartnerLinkTypeElement thePLinkType : thePLinkTypes ){
+    		if( thePLinkType.getName().equals(partnerLinkTypeName) ) return thePLinkType;
+     	} // end for
+    	return null;
+    } // end findPartnerLinkType
+    
+
+    /**
+     * Read a process definition.
+     * 
+     * @param doc
+     * @return
+     * @throws Exception
+     */
+    private BPELProcessDefinition readProcessDefinition(URL doc) throws Exception {
+        BPELProcessDefinition processDefinition = factory.createBPELProcessDefinition();
+        processDefinition.setUnresolved(true);
+        processDefinition.setLocation(doc.toString());
+
+        InputStream is = doc.openStream();
+        XMLStreamReader reader = null;
+        try {
+            reader = inputFactory.createXMLStreamReader(is);
+
+            /*
+             * The principle here is to look for partnerLink elements, which
+             * form either services or references. A partnerLink can be EITHER -
+             * the algorithm for deciding is: 1) Explicit marking with
+             * sca:reference or sca:service attribute 2) "first use" of the
+             * partnerLink by specific BPEL activity elements: <onEvent../>,
+             * <receive../> or <pick../> elements imply a service <invoke../>
+             * implies a reference
+             */
+
+            // TODO - need to handle <scope../> elements as kind of "nested" processes
+            // - and scopes introduce the possibility of partnerLinks with the
+            // same name at different levels of scope.... (yuk!!)
+            boolean completed = false;
+            while (!completed) {
+                switch (reader.next()) {
+                    case START_ELEMENT:
+                        QName qname = reader.getName();
+                        if (BPEL_PROCESS_DEFINITION.equals(qname) || BPEL_EXECUTABLE_DEFINITION.equals(qname)) {
+                            QName processName = new QName(getString(reader, TARGET_NAMESPACE), getString(reader, NAME_ELEMENT));
+                            processDefinition.setName(processName);
+                        } else if (PARTNERLINK_ELEMENT.equals(qname)) {
+                            processDefinition.getPartnerLinks().add(processPartnerLinkElement(reader));
+                        } else if (ONEVENT_ELEMENT.equals(qname) || RECEIVE_ELEMENT.equals(qname) || ONMESSAGE_ELEMENT.equals(qname)) {
+                            processPartnerLinkAsService(reader.getAttributeValue(null, "partnerLink"), processDefinition.getPartnerLinks());
+                        } else if (INVOKE_ELEMENT.equals(qname)) {
+                            processPartnerLinkAsReference(reader.getAttributeValue(null, "partnerLink"), processDefinition.getPartnerLinks());
+                        } else if (IMPORT_ELEMENT.equals(qname)) {
+                            processDefinition.getImports().add(processImportElement(reader));
+                        } // end if
+                        break;
+                    case END_ELEMENT:
+                        if (PROCESS_ELEMENT.equals(reader.getName())) {
+                            completed = true;
+                            break;
+                        } // end if
+                } // end switch
+            } // end while
+        } finally {
+            if (reader != null)
+                reader.close();
+            is.close();
+        } // end try
+
+        return processDefinition;
+    } // end readProcessDefinition
+
+    /**
+     * Processes a partnerLink element from the BPEL process and creates a
+     * BPELPartnerLink object
+     * 
+     * @param reader
+     */
+    private BPELPartnerLinkElement processPartnerLinkElement(XMLStreamReader reader) throws ContributionReadException {
+        BPELPartnerLinkElement partnerLink = new BPELPartnerLinkElement(
+                                                                        reader.getAttributeValue(null, "name"),
+                                                                        getQNameValue(reader, reader.getAttributeValue(null, "partnerLinkType")),
+                                                                        reader.getAttributeValue(null, "myRole"),
+                                                                        reader.getAttributeValue(null, "partnerRole"));
+        
+        // See if there are any SCA extension attributes
+        String scaService = reader.getAttributeValue(SCA_BPEL_NS, "service");
+        String scaReference = reader.getAttributeValue(SCA_BPEL_NS, "reference");
+        if ((scaService != null) && (scaReference != null)) {
+            // It is incorrect to set both service & reference attributes
+            error("PartnerLinkHasBothAttr", partnerLink, reader.getAttributeValue(null, "name"));
+            throw new ContributionReadException("BPEL PartnerLink " + reader.getAttributeValue(null, "name") + " has both sca:reference and sca:service attributes set");
+        }
+        
+        // Set the SCA type and the related name, if present
+        if (scaService != null)
+            partnerLink.setAsService(scaService);
+        else if (scaReference != null)
+            partnerLink.setAsReference(scaReference);
+        return partnerLink;
+        
+    } // end processPartnerLinkElement
+
+    /**
+     * Processes an <import../> element from the BPEL process and creates a
+     * BPELImportElement object
+     * 
+     * @param reader
+     */
+    private BPELImportElement processImportElement(XMLStreamReader reader) {
+        return (new BPELImportElement(reader.getAttributeValue(null, "location"),
+                                      reader.getAttributeValue(null, "importType"),
+                                      reader.getAttributeValue(null, "namespace")));
+        
+    } // end processImportElement
+
+    /**
+     * Mark a named partnerLink as a Service, unless it is already marked as a
+     * Reference
+     * 
+     * @param partnerLinkName
+     * @param partnerLinks
+     */
+    private void processPartnerLinkAsService(String partnerLinkName, List<BPELPartnerLinkElement> partnerLinks) {
+        BPELPartnerLinkElement partnerLink = findPartnerLinkByName(partnerLinks, partnerLinkName);
+        if (partnerLink == null) {
+            warning("ReferencePartnerLinkNotInList", partnerLinkName, partnerLinkName);
+        } else {
+            // Set the type of the partnerLink to "service" if not already
+            // set...
+            if (!partnerLink.isSCATyped())
+                partnerLink.setAsService(partnerLinkName);
+        } // endif
+    } // end processPartnerLinkAsReference
+
+    /**
+     * Mark a named partnerLink as a Reference, unless it is already marked as a
+     * Service
+     * 
+     * @param partnerLinkName
+     * @param partnerLinks
+     */
+    private void processPartnerLinkAsReference(String partnerLinkName, List<BPELPartnerLinkElement> partnerLinks) {
+        BPELPartnerLinkElement partnerLink = findPartnerLinkByName(partnerLinks, partnerLinkName);
+        if (partnerLink == null) {
+            warning("ReferencePartnerLinkNotInList", partnerLinkName, partnerLinkName);
+        } else {
+            // Set the type of the partnerLink to "service" if not already
+            // set...
+            if (!partnerLink.isSCATyped())
+                partnerLink.setAsReference(partnerLinkName);
+        } // endif
+    } // end processPartnerLinkAsReference
+
+    /**
+     * Finds a PartnerLink by name from a List of PartnerLinks returns null if
+     * there is no partnerLink with a matching name - returns the PartnerLink
+     * with a matching name
+     * 
+     * @param partnerLinks
+     * @param partnerLinkName
+     */
+    private BPELPartnerLinkElement findPartnerLinkByName(List<BPELPartnerLinkElement> partnerLinks, String partnerLinkName) {
+        // Scan the list looking for a partner link with the supplied name
+        Iterator<BPELPartnerLinkElement> it = partnerLinks.iterator();
+        while (it.hasNext()) {
+            BPELPartnerLinkElement thePartnerLink = it.next();
+            if (thePartnerLink.getName().equals(partnerLinkName))
+                return thePartnerLink;
+        }
+        return null;
+    } // end method findPartnerLinkByName
+
+    /**
+     * 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(), "impl-bpel-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(), "impl-bpel-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(), "impl-bpel-validation-messages", Severity.ERROR, model, message, ex);
+            monitor.problem(problem);
+        }
+    }
+}
diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELImplementationProcessor.java b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELImplementationProcessor.java
new file mode 100644
index 0000000000..57e7a0b6fa
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELImplementationProcessor.java
@@ -0,0 +1,516 @@
+/*
+ * 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.implementation.bpel.xml;
+
+import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.wsdl.PortType;
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.ComponentType;
+import org.apache.tuscany.sca.assembly.Multiplicity;
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.contribution.processor.BaseStAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
+import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
+import org.apache.tuscany.sca.contribution.processor.ContributionWriteException;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.implementation.bpel.BPELFactory;
+import org.apache.tuscany.sca.implementation.bpel.BPELImplementation;
+import org.apache.tuscany.sca.implementation.bpel.BPELProcessDefinition;
+import org.apache.tuscany.sca.interfacedef.wsdl.WSDLFactory;
+import org.apache.tuscany.sca.interfacedef.wsdl.WSDLInterface;
+import org.apache.tuscany.sca.interfacedef.wsdl.WSDLInterfaceContract;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+
+/**
+ * Implements a StAX artifact processor for BPEL implementations.
+ * 
+ * The artifact processor is responsible for processing <implementation.bpel>
+ * elements in SCA assembly XML composite files and populating the BPEL
+ * implementation model, resolving its references to other artifacts in the SCA
+ * contribution, and optionally write the model back to SCA assembly XML.
+ * 
+ *  @version $Rev$ $Date$
+ */
+public class BPELImplementationProcessor extends BaseStAXArtifactProcessor implements StAXArtifactProcessor<BPELImplementation> {
+    private static final String SCA11_NS = "http://docs.oasis-open.org/ns/opencsa/sca/200903";
+    private static final String PROCESS = "process";
+    private static final String IMPLEMENTATION_BPEL = "implementation.bpel";
+    private static final QName IMPLEMENTATION_BPEL_QNAME = new QName(SCA11_NS, IMPLEMENTATION_BPEL);
+    
+    private AssemblyFactory assemblyFactory;
+    private BPELFactory bpelFactory;
+    private WSDLFactory wsdlFactory;
+    private Monitor monitor;
+    
+    public BPELImplementationProcessor(FactoryExtensionPoint modelFactories, Monitor monitor) {
+        this.assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
+        this.wsdlFactory = modelFactories.getFactory(WSDLFactory.class);
+        this.bpelFactory = modelFactories.getFactory(BPELFactory.class);
+        this.monitor = monitor;
+    }
+
+    public QName getArtifactType() {
+        // Returns the QName of the XML element processed by this processor
+        return IMPLEMENTATION_BPEL_QNAME;
+    }
+
+    public Class<BPELImplementation> getModelType() {
+        // Returns the type of model processed by this processor
+        return BPELImplementation.class;
+    }
+
+    public BPELImplementation read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
+        assert IMPLEMENTATION_BPEL_QNAME.equals(reader.getName());
+        
+        // Read an <implementation.bpel> element
+        BPELImplementation implementation = null;
+        
+        // Read the process attribute. 
+        QName process = getAttributeValueNS(reader, PROCESS);
+        if (process == null) {
+        	return implementation;
+        }
+
+        // Create and initialize the BPEL implementation model
+        implementation = bpelFactory.createBPELImplementation();
+        implementation.setProcess(process);
+        implementation.setUnresolved(true);
+        
+        // Skip to end element
+        while (reader.hasNext()) {
+            if (reader.next() == END_ELEMENT && IMPLEMENTATION_BPEL_QNAME.equals(reader.getName())) {
+                break;
+            }
+        }
+        
+        return implementation;
+    }
+
+    public void resolve(BPELImplementation implementation, ModelResolver resolver) throws ContributionResolveException {
+        
+    	if( implementation != null && implementation.isUnresolved()) 
+    	{
+    	    implementation.setModelResolver(resolver);
+    	    
+            BPELProcessDefinition processDefinition = resolveBPELProcessDefinition(implementation, resolver);
+            if(processDefinition.isUnresolved()) {
+            	error("BPELProcessNotFound", implementation, processDefinition.getName());
+            } else {            
+                implementation.setProcessDefinition(processDefinition);
+            
+                // Get the component type from the process definition
+                generateComponentType( implementation );
+            
+                //resolve component type
+                mergeComponentType(resolver, implementation);
+                        
+                //set current implementation resolved 
+                implementation.setUnresolved(false);
+            }
+        }
+        
+    } // end resolve
+
+    public void write( BPELImplementation bpelImplementation, 
+    		           XMLStreamWriter writer ) throws ContributionWriteException, XMLStreamException {
+        //FIXME Deal with policy processing...
+        // Write <implementation.bpel process="..."/>
+        // policyProcessor.writePolicyPrefixes(bpelImplementation, writer);
+        writer.writeStartElement(SCA11_NS, IMPLEMENTATION_BPEL);
+        // policyProcessor.writePolicyAttributes(bpelImplementation, writer);
+        
+        if (bpelImplementation.getProcess() != null) {
+            writer.writeAttribute(PROCESS, bpelImplementation.getProcess().toString() );
+        }
+
+        writer.writeEndElement();
+
+    } // end write
+
+    private BPELProcessDefinition resolveBPELProcessDefinition(BPELImplementation impl, ModelResolver resolver) throws ContributionResolveException {
+        QName processName = impl.getProcess();
+        BPELProcessDefinition processDefinition = this.bpelFactory.createBPELProcessDefinition();
+        processDefinition.setName(processName);
+        processDefinition.setUnresolved(true);
+        
+        return resolver.resolveModel(BPELProcessDefinition.class, processDefinition);
+    } // end resolveBPELProcessDefinition
+    
+    /**
+     * Calculates the component type of the supplied implementation and attaches it to the
+     * implementation.
+     * 
+     * @param impl
+     * @throws ContributionResolveException
+     */
+    private void generateComponentType(BPELImplementation impl) throws ContributionResolveException {
+
+        // Create a ComponentType and mark it unresolved
+        ComponentType componentType = assemblyFactory.createComponentType();
+        componentType.setUnresolved(true);
+        impl.setComponentType(componentType);
+
+        // Each partner link in the process represents either a service or a
+        // reference
+        // - or both, in the sense of involving a callback
+        BPELProcessDefinition theProcess = impl.getProcessDefinition();
+        List<BPELPartnerLinkElement> partnerLinks = theProcess.getPartnerLinks();
+
+        for (BPELPartnerLinkElement pLink : partnerLinks) {
+
+            // check that the partner link has been designated as service or
+            // reference in SCA terms
+            if (pLink.isSCATyped()) {
+                String scaName = pLink.getSCAName();
+                if (pLink.querySCAType().equals("reference")) {
+                    componentType.getReferences().add(generateReference(scaName, pLink.getMyRolePortType(), pLink.getPartnerRolePortType(), theProcess.getInterfaces()));
+                } else {
+                    componentType.getServices().add(generateService(scaName, pLink.getMyRolePortType(), pLink.getPartnerRolePortType(), theProcess.getInterfaces()));
+                } // end if
+            } // end if
+        } // end for
+
+    } // end getComponentType
+    
+    /**
+     * Create an SCA reference for a partnerLink
+     * @param name - name of the reference
+     * @param myRolePT - partner link type of myRole
+     * @param partnerRolePT - partner link type of partnerRole
+     * @param theInterfaces - list of WSDL interfaces associated with the BPEL process
+     * @return
+     */
+    private Reference generateReference( String name, PortType myRolePT, 
+    		PortType partnerRolePT, Collection<WSDLInterface> theInterfaces) throws ContributionResolveException {
+        
+        Reference reference = assemblyFactory.createReference();
+        WSDLInterfaceContract interfaceContract = wsdlFactory.createWSDLInterfaceContract();
+        reference.setInterfaceContract(interfaceContract);
+
+        // Establish whether there is just a call interface or a call + callback
+        // interface
+        PortType callPT = null;
+        PortType callbackPT = null;
+        if (myRolePT != null) {
+            callPT = myRolePT;
+            // If the 2 port types are not the same one, there is a callback...
+            if (partnerRolePT != null) {
+                if (!myRolePT.getQName().equals(partnerRolePT.getQName())) {
+                    callbackPT = partnerRolePT;
+                } // end if
+            } // end if
+        } else if (partnerRolePT != null) {
+            callPT = partnerRolePT;
+        } // end if
+
+        // No interfaces mean an error
+        if (callPT == null && callbackPT == null) {
+            error("MyRolePartnerRoleNull", theInterfaces);
+        } // end if
+
+        // Set the name of the reference to the supplied name and the
+        // multiplicity of the reference
+        // to 1..1
+        // TODO: support other multiplicities
+        reference.setName(name);
+        reference.setMultiplicity(Multiplicity.ONE_ONE);
+
+        if (callPT != null) {
+            // Set the call interface and, if present, the callback interface
+            WSDLInterface callInterface = null;
+            for (WSDLInterface anInterface : theInterfaces) {
+                if (anInterface.getPortType().getQName().equals(callPT.getQName()))
+                    callInterface = anInterface;
+            } // end for
+            if (callInterface == null) {
+                error("NoInterfaceForPortType", theInterfaces, callPT.getQName().toString());
+            } else
+                reference.getInterfaceContract().setInterface(callInterface);
+        }
+
+        // There is a callback if the partner role is not null and if the
+        // partner role port type
+        // is not the same as the port type for my role
+        if (callbackPT != null) {
+            WSDLInterface callbackInterface = null;
+            for (WSDLInterface anInterface : theInterfaces) {
+                if (anInterface.getPortType().getQName().equals(callbackPT.getQName()))
+                    callbackInterface = anInterface;
+            } // end for
+            if (callbackInterface == null) {
+                error("NoInterfaceForPortType", theInterfaces, callbackPT.getQName().toString());
+            } else
+                reference.getInterfaceContract().setCallbackInterface(callbackInterface);
+        } // end if
+
+        return reference;
+    } // end generateReference
+    
+    /**
+     * Create an SCA service for a partnerLink
+     * @param name - name of the reference
+     * @param myRolePT - partner link type of myRole
+     * @param partnerRolePT - partner link type of partnerRole
+     * @param theInterfaces - list of WSDL interfaces associated with the BPEL process
+     * @return
+     */
+    private Service generateService( String name, PortType myRolePT, 
+    		PortType partnerRolePT, Collection<WSDLInterface> theInterfaces ) 
+    		throws ContributionResolveException {
+        Service service = assemblyFactory.createService();
+        WSDLInterfaceContract interfaceContract = wsdlFactory.createWSDLInterfaceContract();
+        service.setInterfaceContract(interfaceContract);
+
+        // Set the name of the service to the supplied name
+        service.setName(name);
+
+        // Establish whether there is just a call interface or a call + callback
+        // interface
+        PortType callPT = null;
+        PortType callbackPT = null;
+        if (myRolePT != null) {
+            callPT = myRolePT;
+            // If the 2 port types are not the same one, there is a callback...
+            if (partnerRolePT != null) {
+                if (!myRolePT.getQName().equals(partnerRolePT.getQName())) {
+                    callbackPT = partnerRolePT;
+                } // end if
+            } // end if
+        } else if (partnerRolePT != null) {
+            callPT = partnerRolePT;
+        } // end if
+
+        // No interfaces mean an error
+        if (callPT == null && callbackPT == null) {
+            error("MyRolePartnerRoleNull", theInterfaces);
+        } // end if
+
+        if (callPT != null) {
+            // Set the call interface and, if present, the callback interface
+            WSDLInterface callInterface = null;
+            for (WSDLInterface anInterface : theInterfaces) {
+                if (anInterface.getPortType().getQName().equals(callPT.getQName()))
+                    callInterface = anInterface;
+            } // end for
+            if (callInterface == null) {
+                error("NoInterfaceForPortType", theInterfaces, callPT.getQName().toString());
+            } else
+                service.getInterfaceContract().setInterface(callInterface);
+        } // end if
+
+        // There is a callback if the partner role is not null and if the
+        // partner role port type
+        // is not the same as the port type for my role
+        if (callbackPT != null) {
+            WSDLInterface callbackInterface = null;
+            for (WSDLInterface anInterface : theInterfaces) {
+                if (anInterface.getPortType().getQName().equals(callbackPT.getQName()))
+                    callbackInterface = anInterface;
+            } // end for
+            if (callbackInterface == null) {
+                error("NoInterfaceForPortType", theInterfaces, callbackPT.getQName().toString());
+            } else
+                service.getInterfaceContract().setCallbackInterface(callbackInterface);
+        } // end if
+
+        return service;
+    } // end generateService
+    
+    /**
+     * Merge the componentType from introspection and from external file
+     * 
+     * Note the setting of the DataBinding for both Services and References to DOM, since this is
+     * the data format expected by the ODE BPEL implementation code.
+     * 
+     * @param resolver
+     * @param impl
+     */
+    private void mergeComponentType(ModelResolver resolver, BPELImplementation impl) {
+
+        // Load the component type from a component type file, if any
+        ComponentType componentType = getComponentType(resolver, impl);
+        if (componentType != null && !componentType.isUnresolved()) {
+
+            // References...
+            Map<String, Reference> refMap = new HashMap<String, Reference>();
+            for (Reference reference : componentType.getReferences()) {
+                refMap.put(reference.getName(), reference);
+            } // end for
+
+            // For the present, overwrite anything arising from the component
+            // type sidefile if
+            // equivalent services are defined in the implementation.
+            // TODO - a more careful merge must be done, using the
+            // implementation introspection data
+            // as the master but adding any additional and non-conflicting
+            // information from the
+            // sidefile
+            for (Reference ref : impl.getReferences()) {
+                refMap.put(ref.getName(), ref);
+            } // end for
+
+            impl.getReferences().clear();
+            impl.getReferences().addAll(refMap.values());
+
+            // Services.....
+            Map<String, Service> serviceMap = new HashMap<String, Service>();
+            for (Service service : componentType.getServices()) {
+                serviceMap.put(service.getName(), service);
+            } // end for
+
+            // For the present, overwrite anything arising from the component
+            // type sidefile if
+            // equivalent services are defined in the implementation.
+            // TODO - a more careful merge must be done, using the
+            // implementation introspection data
+            // as the master but adding any additional and non-conflicting
+            // information from the
+            // sidefile
+            for (Service svc : impl.getServices()) {
+                serviceMap.put(svc.getName(), svc);
+            } // end for
+
+            impl.getServices().clear();
+            impl.getServices().addAll(serviceMap.values());
+
+            // Properties
+            Map<String, Property> propMap = new HashMap<String, Property>();
+            for (Property property : componentType.getProperties()) {
+                propMap.put(property.getName(), property);
+            } // end for
+
+            // A simple overwrite of any equivalent properties from the
+            // component type sidefile
+            for (Property prop : impl.getProperties()) {
+                propMap.put(prop.getName(), prop);
+            }
+        }
+    }
+
+
+    /**
+     * Find the componentType side file based on the BPEL implementation artifact
+     * @param resolver
+     * @param impl
+     * @return
+     */
+    private ComponentType getComponentType(ModelResolver resolver, BPELImplementation impl) {
+        String bpelProcessURI = impl.getProcessDefinition().getURI().toString();
+        
+        // Get the component type definition contained in the componentType file, if any
+        String componentTypeURI = bpelProcessURI.replace(".bpel", ".componentType");
+        ComponentType componentType = assemblyFactory.createComponentType();
+        componentType.setUnresolved(true);
+        componentType.setURI(componentTypeURI);
+        componentType = resolver.resolveModel(ComponentType.class, componentType);
+        if (!componentType.isUnresolved()) {
+            return componentType;
+        }
+        return null;
+    } // end getComponentType
+
+    /**
+     * Returns a QName from its string representation in a named attribute of an XML element
+     * supplied in an XMLStreamReader
+     * 
+     * QName attributes of an XML element (such as  BPEL process) is presented in one of
+     * two alternative formats:
+     * 1) In the form of a local name with a prefix, with the prefix referencing a namespace
+     * URI declaration elsewhere in the composite (typically on the composite element)
+     * 
+     * ie:   nms:SomeName
+     *       xmlns:nms="http://example.com/somenamespace"
+     *       
+     * 2) In the XML Namespaces recommendation format (see http://jclark.com/xml/xmlns.htm )
+     * where the namespace URI and the local name are encoded into a single string, with the 
+     * namespace URI enclosed between a pair of braces {...}
+     * 
+     *  ie:  {http://example.com/somenamespace}SomeName
+     */
+    private QName getAttributeValueNS(XMLStreamReader reader, String attribute) {
+        String fullValue = reader.getAttributeValue(null, attribute);
+        if (fullValue == null) {
+            error("AttributeProcessMissing", reader);
+            return null;
+        }
+
+        // Deal with the attribute in the XML Namespaces recommendation format
+        // - trim off any leading/trailing spaces and check that the first
+        // character is '{'
+        if (fullValue.trim().charAt(0) == '{') {
+            try {
+                // Attempt conversion to a QName object
+                QName theProcess = QName.valueOf(fullValue);
+                return theProcess;
+            } catch (IllegalArgumentException e) {
+                // This exception happens if the attribute begins with '{' but
+                // doesn't conform
+                // to the XML Namespaces recommendation format
+                error("AttributeWithoutNamespace", reader, attribute, fullValue);
+                return null;
+            }
+        } // endif
+
+        // Deal with the attribute in the local name + prefix format
+        if (fullValue.indexOf(":") < 0) {
+            error("AttributeWithoutPrefix", reader, attribute, fullValue);
+            return null;
+        }
+        String prefix = fullValue.substring(0, fullValue.indexOf(":"));
+        String name = fullValue.substring(fullValue.indexOf(":") + 1);
+        String nsUri = reader.getNamespaceContext().getNamespaceURI(prefix);
+        if (nsUri == null) {
+            error("AttributeUnrecognizedNamespace", reader, attribute, fullValue);
+            return null;
+        }
+        return new QName(nsUri, name, prefix);
+    }
+
+    /**
+     * 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(), "impl-bpel-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters);
+                monitor.problem(problem);
+         }
+    }
+     
+}
diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELImportElement.java b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELImportElement.java
new file mode 100644
index 0000000000..bf0020323c
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELImportElement.java
@@ -0,0 +1,65 @@
+/*

+ * 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.implementation.bpel.xml;

+

+import org.apache.tuscany.sca.interfacedef.wsdl.WSDLDefinition;

+

+/**

+ * Represents an <import.../> element in a BPEL process

+ * - this has attributes:

+ *      location

+ *      importType

+ *      namespace

+ *

+ * @version $Rev$ $Date$

+ */

+public class BPELImportElement {

+	

+    private String location;

+    private String importType;

+    private String namespace;

+    private WSDLDefinition theWSDL = null;

+

+    public BPELImportElement(String location, String importType, String namespace) {

+        this.location = location;

+        this.importType = importType;

+        this.namespace = namespace;

+    }

+

+    public String getImportType() {

+        return importType;

+    }

+

+    public String getLocation() {

+        return location;

+    }

+

+    public String getNamespace() {

+        return namespace;

+    }

+

+    public void setWSDLDefinition(WSDLDefinition theDefinition) {

+        theWSDL = theDefinition;

+    }

+

+    public WSDLDefinition getWSDLDefinition() {

+        return theWSDL;

+    }

+

+} // end class BPELImportElement

diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELPartnerLinkElement.java b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELPartnerLinkElement.java
new file mode 100644
index 0000000000..cf90bea837
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELPartnerLinkElement.java
@@ -0,0 +1,129 @@
+/*

+ * 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.implementation.bpel.xml;

+

+import javax.wsdl.PortType;

+import javax.xml.namespace.QName;

+

+/**

+ * Represents a <partnerLink.../> element in a BPEL process

+ * - this has attributes:

+ *      name

+ *      partnerLinkType

+ *      myRole

+ *      partnerRole

+ * - plus zero or more property elements as children

+ * 

+ * The partnerlink may also be given an SCA Type - either of service or of reference - this must

+ * generally be calculated and set on the partnerLink by inspecting the BPEL process

+ *

+ * @version $Rev$ $Date$

+ */

+public class BPELPartnerLinkElement {

+

+    private String 	REFERENCE_TYPE = "reference";

+    private String 	SERVICE_TYPE = "service";

+    private String 	name;

+    private QName	partnerLinkType;

+    private BPELPartnerLinkTypeElement 	pLinkType = null;

+    private String 	myRole;

+    private String 	partnerRole;

+    private String 	scaName;			// Holds the SCA reference or service name

+    private String 	scaType = null; 	// Holds the SCA type = null | service | reference

+    

+    public BPELPartnerLinkElement(String name, 

+    							  QName partnerLinkType,

+    							  String myRole, 

+    							  String partnerRole ) {

+        this.name = name;

+        this.partnerLinkType = partnerLinkType;

+        this.myRole = myRole;

+        this.partnerRole = partnerRole;

+        

+        scaName = null;

+    }

+

+    public QName getPartnerLinkType() {

+        return partnerLinkType;

+    }

+    

+    public void setPartnerLinkType( BPELPartnerLinkTypeElement pLinkType ) {

+    	this.pLinkType = pLinkType;

+    }

+    

+    

+    public PortType getMyRolePortType() {

+    	return getRolePortType( myRole );

+    }

+    

+    public PortType getPartnerRolePortType() {

+    	return getRolePortType( partnerRole );

+    }

+    

+    private PortType getRolePortType( String theRole ) {

+    	if (theRole == null || theRole.length() == 0) {

+            return null;

+        } // end if

+        if (theRole.equals(pLinkType.getRole1Name())) {

+            return pLinkType.getRole1pType();

+        } else if (theRole.equals(pLinkType.getRole2Name())) {

+            return pLinkType.getRole2pType();

+        } // end if

+        return null;

+    } // end getRolePortType

+

+    public String getName() {

+        return name;

+    }

+    

+    public String getMyRole() {

+    	return myRole;

+    }

+    

+    public String getPartnerRole() {

+    	return partnerRole;

+    }

+    

+    public void setSCAName( String name ) {

+    	scaName = name;

+    }

+    

+    public String getSCAName() {

+    	return scaName;

+    }

+    

+    public boolean isSCATyped() {

+    	return ( !(scaType == null) );

+    }

+    

+    public void setAsReference( String name ) {

+    	scaType = REFERENCE_TYPE;

+    	scaName = name;

+    }

+    

+    public void setAsService( String name ) {

+    	scaType = SERVICE_TYPE;

+    	scaName = name;

+    }

+    

+    public String querySCAType() {

+    	return scaType;

+    }

+

+} // end class BPELPartnerLinkElement

diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELPartnerLinkTypeElement.java b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELPartnerLinkTypeElement.java
new file mode 100644
index 0000000000..86a1d757d5
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/java/org/apache/tuscany/sca/implementation/bpel/xml/BPELPartnerLinkTypeElement.java
@@ -0,0 +1,111 @@
+/*

+ * 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.implementation.bpel.xml;

+

+ import javax.wsdl.PortType;

+import javax.wsdl.extensions.ExtensibilityElement;

+import javax.xml.namespace.QName;

+ 

+/**

+ * Represents a <partnerLinkType.../> element related to a BPEL process

+ * - this has attributes:

+ *      name

+ *      Role1 name

+ *      Role1 portType

+ *      Role2 name

+ *         Role2 portType

+ *

+ * - in the XML the 2 roles are child elements of the partnerLinkType element, but there

+ * seems little point in reflecting this back into this model - it is simpler to include

+ * both roles within the representation of the partnerLinkType itself

+ *

+ * @version $Rev$ $Date$

+ */

+public class BPELPartnerLinkTypeElement implements ExtensibilityElement {

+	

+    private QName name;

+    private String Role1name = null;

+    private QName Role1porttype = null;

+    private PortType Role1pType = null;

+    private String Role2name = null;

+    private QName Role2porttype = null;

+    private PortType Role2pType = null;

+    private QName elementType = null;

+    private Boolean required = false;

+

+    public BPELPartnerLinkTypeElement(QName name) {

+        this.name = name;

+    }

+

+    public QName getName() {

+        return name;

+    }

+

+    public void setRole1(String name, QName portType, PortType pType) {

+        Role1name = name;

+        Role1porttype = portType;

+        Role1pType = pType;

+    }

+

+    public void setRole2(String name, QName portType, PortType pType) {

+        Role2name = name;

+        Role2porttype = portType;

+        Role2pType = pType;

+    }

+

+    public String getRole1Name() {

+        return Role1name;

+    }

+

+    public String getRole2Name() {

+        return Role2name;

+    }

+

+    public QName getRole1PortType() {

+        return Role1porttype;

+    }

+

+    public QName getRole2PortType() {

+        return Role2porttype;

+    }

+

+    public PortType getRole1pType() {

+        return Role1pType;

+    }

+

+    public PortType getRole2pType() {

+        return Role2pType;

+    }

+

+    public QName getElementType() {

+        return elementType;

+    }

+

+    public Boolean getRequired() {

+        return required;

+    }

+

+    public void setElementType(QName elementType) {

+        this.elementType = elementType;

+    }

+

+    public void setRequired(java.lang.Boolean required) {

+        this.required = required;

+    }

+

+} // end BPELPartnerLinkType

diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor
new file mode 100644
index 0000000000..c5eaf6418e
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor
@@ -0,0 +1,19 @@
+# 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. 
+
+# Implementation class for the artifact processor extension
+org.apache.tuscany.sca.implementation.bpel.xml.BPELImplementationProcessor;qname=http://docs.oasis-open.org/ns/opencsa/sca/200903#implementation.bpel,model=org.apache.tuscany.sca.implementation.bpel.BPELImplementation
\ No newline at end of file
diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor
new file mode 100644
index 0000000000..f6fd442f56
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor
@@ -0,0 +1,19 @@
+# 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. 

+

+# Implementation class for the artifact processor extension

+org.apache.tuscany.sca.implementation.bpel.xml.BPELDocumentProcessor;type=.bpel,model=org.apache.tuscany.sca.implementation.bpel.BPELProcessDefinition
\ No newline at end of file
diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.resolver.ModelResolver b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.resolver.ModelResolver
new file mode 100644
index 0000000000..08930e29ff
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.resolver.ModelResolver
@@ -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.implementation.bpel.xml.BPELDocumentModelResolver;model=org.apache.tuscany.sca.implementation.bpel.BPELProcessDefinition

diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/resources/META-INF/services/org.apache.tuscany.sca.implementation.bpel.BPELFactory b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/resources/META-INF/services/org.apache.tuscany.sca.implementation.bpel.BPELFactory
new file mode 100644
index 0000000000..4276e938f1
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/resources/META-INF/services/org.apache.tuscany.sca.implementation.bpel.BPELFactory
@@ -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.implementation.bpel.impl.BPELFactoryImpl

diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/resources/impl-bpel-validation-messages.properties b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/resources/impl-bpel-validation-messages.properties
new file mode 100644
index 0000000000..b6d8bdc0f1
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/main/resources/impl-bpel-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.
+#
+#
+CannotResolveWSDLReference = BPELDocumentProcessor:resolve - unable to resolve WSDL referenced by BPEL import WSDL location: {0} WSDLNamespace: {1}
+ContributionReadException = ContributionReadException occured due to :
+PartnerLinkNoMatchingType = PartnerLink {0} has no matching partner link type
+PartnerLinkTypeNoRoles = PartnerLinkType {0} has no Roles defined
+ContributionResolveException = ContributionResolveException occured due to :
+PartnerLinkHasBothAttr = BPEL PartnerLink {0} has both sca:reference and sca:service attributes set
+ReferencePartnerLinkNotInList = BPEL TypeLoader - element references partnerLink {0} not in the list
+MyRolePartnerRoleNull = Error: myRole and partnerRole port types are both null
+NoInterfaceForPortType = Interface not found for port type {0}
+AttributeProcessMissing = Attribute 'process' is missing.
+AttributeWithoutNamespace = Attribute {0} with value {1} in your composite should be of the form {namespaceURI}localname
+AttributeWithoutPrefix = Attribute {0} with value {1} in your composite should be prefixed (process=\"prefix:name\").
+AttributeUnrecognizedNamespace = Attribute {0} with value {1} in your composite has un unrecognized namespace prefix.
+BPELProcessNotFound = Can't find BPEL Process : {0}
\ No newline at end of file
diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/test/java/org/apache/tuscany/sca/implementation/bpel/BPELDocumentProcessorTestCase.java b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/test/java/org/apache/tuscany/sca/implementation/bpel/BPELDocumentProcessorTestCase.java
new file mode 100644
index 0000000000..e355b7adf9
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/test/java/org/apache/tuscany/sca/implementation/bpel/BPELDocumentProcessorTestCase.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.implementation.bpel;
+
+import java.net.URI;
+import java.net.URL;
+
+import javax.xml.namespace.QName;
+
+import junit.framework.TestCase;
+
+import org.apache.tuscany.sca.contribution.processor.ExtensibleURLArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessorExtensionPoint;
+import org.apache.tuscany.sca.core.DefaultExtensionPointRegistry;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class BPELDocumentProcessorTestCase extends TestCase {
+
+    protected static final String BPEL_PROCESS_FILE = "helloworld/helloworld.bpel";
+
+    private URLArtifactProcessor<Object> documentProcessor;
+
+    @Override
+    protected void setUp() throws Exception {
+        DefaultExtensionPointRegistry extensionPoints = new DefaultExtensionPointRegistry();
+        URLArtifactProcessorExtensionPoint documentProcessors = extensionPoints.getExtensionPoint(URLArtifactProcessorExtensionPoint.class);
+        documentProcessor = new ExtensibleURLArtifactProcessor(documentProcessors, null);
+    }
+
+    public void testLoadBPELProcessDefinition() throws Exception {
+        URI processURI = getClass().getClassLoader().getResource(BPEL_PROCESS_FILE).toURI();
+        URL processLocation = getClass().getClassLoader().getResource(BPEL_PROCESS_FILE);
+        BPELProcessDefinition bpelProcessDefinition = (BPELProcessDefinition)documentProcessor.read(null, processURI, processLocation);
+
+        assertNotNull(bpelProcessDefinition);
+        assertEquals(new QName("http://tuscany.apache.org/implementation/bpel/example/helloworld", "HelloWorld"), bpelProcessDefinition.getName());
+        assertEquals(processLocation.toString(), bpelProcessDefinition.getLocation());
+    }
+}
diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/test/java/org/apache/tuscany/sca/implementation/bpel/BPELImplementationProcessorTestCase.java b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/test/java/org/apache/tuscany/sca/implementation/bpel/BPELImplementationProcessorTestCase.java
new file mode 100644
index 0000000000..00a70fcb54
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/test/java/org/apache/tuscany/sca/implementation/bpel/BPELImplementationProcessorTestCase.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.implementation.bpel;
+
+import java.io.StringReader;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLStreamReader;
+
+import junit.framework.TestCase;
+
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.contribution.processor.DefaultStAXArtifactProcessorExtensionPoint;
+import org.apache.tuscany.sca.contribution.processor.ExtensibleStAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint;
+import org.apache.tuscany.sca.core.DefaultExtensionPointRegistry;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.monitor.DefaultMonitorFactory;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.MonitorFactory;
+import org.apache.tuscany.sca.monitor.Problem;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class BPELImplementationProcessorTestCase extends TestCase {
+
+    private static final String COMPOSITE =
+        "<?xml version=\"1.0\" encoding=\"ASCII\"?>" 
+        + "<composite xmlns=\"http://docs.oasis-open.org/ns/opencsa/sca/200903\" xmlns:hns=\"http://tuscany.apache.org/implementation/bpel/example/helloworld\" targetNamespace=\"http://bpel\" name=\"bpel\">"
+            + " <component name=\"BPELHelloWorldComponent\">"
+            + "   <implementation.bpel process=\"hns:HelloWorld\" />"
+            + " </component>"
+            + "</composite>";
+
+    private static final String COMPOSITE_INVALID =
+        "<?xml version=\"1.0\" encoding=\"ASCII\"?>" 
+            + "<composite xmlns=\"http://docs.oasis-open.org/ns/opencsa/sca/200903\" xmlns:hns=\"http://tuscany.apache.org/implementation/bpel/example/helloworld\" targetNamespace=\"http://bpel\" name=\"bpel\">"
+            + " <component name=\"BPELHelloWorldComponent\">"
+            + "   <implementation.bpel/>"
+            + " </component>"
+            + "</composite>";
+
+    private XMLInputFactory inputFactory;
+    private StAXArtifactProcessor<Object> staxProcessor;
+    private Monitor monitor;
+
+    @Override
+    protected void setUp() throws Exception {
+        DefaultExtensionPointRegistry extensionPoints = new DefaultExtensionPointRegistry();
+        inputFactory = XMLInputFactory.newInstance();
+        // Create a monitor
+        UtilityExtensionPoint utilities = extensionPoints.getExtensionPoint(UtilityExtensionPoint.class);
+        MonitorFactory monitorFactory = new DefaultMonitorFactory();  
+        if (monitorFactory != null) {
+        	monitor = monitorFactory.createMonitor();
+        	utilities.addUtility(monitorFactory);
+        }
+        StAXArtifactProcessorExtensionPoint staxProcessors = new DefaultStAXArtifactProcessorExtensionPoint(extensionPoints);
+        staxProcessor = new ExtensibleStAXArtifactProcessor(staxProcessors, inputFactory, null, null);
+    }
+
+    /**
+     * Test parsing valid composite definition. Valid composite populated with correct values expected.
+     * @throws Exception
+     */
+    public void testLoadValidComposite() throws Exception {
+        XMLStreamReader reader = inputFactory.createXMLStreamReader(new StringReader(COMPOSITE));
+        
+        Composite composite = (Composite)staxProcessor.read(reader);
+        BPELImplementation implementation = (BPELImplementation)composite.getComponents().get(0).getImplementation();
+        
+        assertNotNull(implementation);
+        assertEquals(new QName("http://tuscany.apache.org/implementation/bpel/example/helloworld", "HelloWorld"), implementation.getProcess());
+    }
+
+    /**
+     * Test parsing invalid composite definition. Exception should be thrown
+     * @throws Exception
+     */
+    public void testLoadInvalidComposite() throws Exception {
+        XMLStreamReader reader = inputFactory.createXMLStreamReader(new StringReader(COMPOSITE_INVALID));
+        staxProcessor.read(reader);
+        Problem problem = monitor.getLastProblem();           
+        assertNotNull(problem);
+        assertEquals("AttributeProcessMissing", problem.getMessageId());
+    }    
+}
diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/test/resources/helloworld/helloworld.bpel b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/test/resources/helloworld/helloworld.bpel
new file mode 100644
index 0000000000..8cf91adc2c
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/test/resources/helloworld/helloworld.bpel
@@ -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.
+  -->
+<process name="HelloWorld"
+    targetNamespace="http://tuscany.apache.org/implementation/bpel/example/helloworld"
+    xmlns="http://schemas.xmlsoap.org/ws/2004/03/business-process/"

+    xmlns:bpws="http://schemas.xmlsoap.org/ws/2004/03/business-process/"
+    xmlns:tns="http://tuscany.apache.org/implementation/bpel/example/helloworld"    
+    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+    xmlns:test="http://tuscany.apache.org/implementation/bpel/example/helloworld.wsdl"
+    queryLanguage="urn:oasis:names:tc:wsbpel:2.0:sublang:xpath2.0"
+    expressionLanguage="urn:oasis:names:tc:wsbpel:2.0:sublang:xpath2.0">
+
+  <import location="helloworld.wsdl" importType="http://schemas.xmlsoap.org/wsdl/"
+     namespace="http://tuscany.apache.org/implementation/bpel/example/helloworld.wsdl"/>
+
+   <partnerLinks>
+      <partnerLink name="helloPartnerLink" partnerLinkType="test:HelloPartnerLinkType" myRole="me" />
+   </partnerLinks>
+    
+   <variables>
+     <variable name="helloMessage" messageType="test:HelloMessage"/>
+     <variable name="tmpVar" type="xsd:string"/>
+   </variables>
+
+   <sequence>
+       <receive
+          name="start"
+          partnerLink="helloPartnerLink"
+          portType="test:HelloPortType"
+          operation="hello"
+          variable="helloMessage"
+          createInstance="yes"/>
+
+      <assign name="assign1">
+          <copy>
+              <from variable="helloMessage" part="TestPart"/>
+              <to variable="tmpVar"/>
+          </copy>
+          <copy>
+              <from>concat($tmpVar,' World')</from>
+              <to variable="helloMessage" part="TestPart"/>
+          </copy>
+      </assign>
+       <reply name="end"  
+              partnerLink="helloPartnerLink"
+              portType="test:HelloPortType" 
+              operation="hello"
+              variable="helloMessage"/>
+   </sequence>
+</process>
diff --git a/branches/sca-java-2.0-M2/modules/implementation-bpel/src/test/resources/helloworld/helloworld.wsdl b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/test/resources/helloworld/helloworld.wsdl
new file mode 100644
index 0000000000..1d71727b2d
--- /dev/null
+++ b/branches/sca-java-2.0-M2/modules/implementation-bpel/src/test/resources/helloworld/helloworld.wsdl
@@ -0,0 +1,82 @@
+<?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.

+  -->

+

+<wsdl:definitions name="helloworld"

+    targetNamespace="http://tuscany.apache.org/implementation/bpel/example/helloworld.wsdl"

+    xmlns="http://schemas.xmlsoap.org/wsdl/"

+    xmlns:tns="http://tuscany.apache.org/implementation/bpel/example/helloworld.wsdl"

+    xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" 

+    xmlns:wsdlsoap="http://schemas.xmlsoap.org/wsdl/soap/"

+    xmlns:xsd="http://www.w3.org/2001/XMLSchema"

+    xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"

+    xmlns:bpws="http://schemas.xmlsoap.org/ws/2004/03/business-process/"

+    xmlns:plnk="http://schemas.xmlsoap.org/ws/2004/03/partner-link/">

+    

+    <wsdl:types>

+        <schema elementFormDefault="qualified" 

+           targetNamespace="http://tuscany.apache.org/implementation/bpel/example/helloworld.wsdl" 

+           xmlns="http://www.w3.org/2001/XMLSchema">

+

+            <element name="hello">

+                <complexType>

+                    <sequence>

+                        <element name="message" type="xsd:string"/>

+                    </sequence>

+                </complexType>

+            </element>            

+        </schema>

+    </wsdl:types>

+    

+    <wsdl:message name="HelloMessage">

+        <wsdl:part element="tns:hello" name="TestPart"/>

+    </wsdl:message>

+    

+    <wsdl:portType name="HelloPortType">

+        <wsdl:operation name="hello">

+            <wsdl:input message="tns:HelloMessage" name="TestIn"/>

+            <wsdl:output message="tns:HelloMessage" name="TestOut"/>

+        </wsdl:operation>    

+    </wsdl:portType>

+    

+

+    <wsdl:binding name="HelloSoapBinding" type="tns:HelloPortType">

+        <wsdlsoap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>

+        <wsdl:operation name="hello">

+            <wsdlsoap:operation soapAction=""/>

+            <wsdl:input name="TestIn">

+                <wsdlsoap:body use="literal"/>

+            </wsdl:input>

+            <wsdl:output name="TestOut">

+                <wsdlsoap:body use="literal"/>

+            </wsdl:output>

+        </wsdl:operation>

+    </wsdl:binding>    

+    

+    <wsdl:service name="HelloService">

+		<wsdl:port name="HelloPort" binding="tns:HelloSoapBinding">

+     		<soap:address location="http://localhost:8085/ode/processes/helloWorld"/>

+		</wsdl:port>

+    </wsdl:service>

+    

+   <plnk:partnerLinkType name="HelloPartnerLinkType">

+       <plnk:role name="me" portType="tns:HelloPortType"/>

+       <plnk:role name="you" portType="tns:HelloPortType"/>

+   </plnk:partnerLinkType>

+</wsdl:definitions>
\ No newline at end of file