diff options
Diffstat (limited to 'sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace')
10 files changed, 707 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/DefaultNamespaceImportExportFactory.java b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/DefaultNamespaceImportExportFactory.java new file mode 100644 index 0000000000..a71fa61a54 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/DefaultNamespaceImportExportFactory.java @@ -0,0 +1,30 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.contribution.namespace; + +import org.apache.tuscany.sca.contribution.namespace.impl.NamespaceImportExportFactoryImpl; + +/** + * Default Namespace Import/Export model factory implementation + * + * @version $Rev$ $Date$ + */ +public class DefaultNamespaceImportExportFactory extends NamespaceImportExportFactoryImpl implements NamespaceImportExportFactory { +} diff --git a/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/NamespaceExport.java b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/NamespaceExport.java new file mode 100644 index 0000000000..c68aee8521 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/NamespaceExport.java @@ -0,0 +1,46 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.contribution.namespace; + +import org.apache.tuscany.sca.contribution.Export; + + +/** + * The representation of an XML namespace export. + * + * @version $Rev$ $Date$ + */ +public interface NamespaceExport extends Export { + + /** + * Get Namespace that identifies the export + * + * @return The exported namespace + */ + String getNamespace(); + + /** + * Set Namespace that identifies the export + * + * @param namespace The exported namespace + */ + void setNamespace(String namespace); + +} diff --git a/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/NamespaceImport.java b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/NamespaceImport.java new file mode 100644 index 0000000000..8af36d7da0 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/NamespaceImport.java @@ -0,0 +1,59 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.contribution.namespace; + +import org.apache.tuscany.sca.contribution.Import; + +/** + * The representation of an XML namespace import. + * + * @version $Rev$ $Date$ + */ +public interface NamespaceImport extends Import { + + /** + * Get the location used to resolve the definitions for this import + * + * @return The import location + */ + String getLocation(); + + /** + * Set the location used to resolve the definitions for this import + * + * @param location The import location + */ + void setLocation(String location); + + /** + * Get Namespace that identifies the import + * + * @return The namespace + */ + String getNamespace(); + + /** + * Set Namespace that identifies the import + * + * @param namespace The namespace + */ + void setNamespace(String namespace); + +}
\ No newline at end of file diff --git a/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/NamespaceImportExportFactory.java b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/NamespaceImportExportFactory.java new file mode 100644 index 0000000000..cfbac8bb1f --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/NamespaceImportExportFactory.java @@ -0,0 +1,42 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.contribution.namespace; + +/** + * Base Namespace import/export model factory + * + * @version $Rev$ $Date$ + */ +public interface NamespaceImportExportFactory { + + /** + * Create a namespace import model object + * + * @return The new NamespaceImport model object + */ + NamespaceImport createNamespaceImport(); + + /** + * Create a namespace export model object + * + * @return The new NamespaceExport model object + */ + NamespaceExport createNamespaceExport(); +} diff --git a/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceExportImpl.java b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceExportImpl.java new file mode 100644 index 0000000000..8991585d32 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceExportImpl.java @@ -0,0 +1,54 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.contribution.namespace.impl; + +import org.apache.tuscany.sca.contribution.namespace.NamespaceExport; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; + +/** + * The representation of an export for the contribution + * + * @version $Rev$ $Date$ + */ +public class NamespaceExportImpl implements NamespaceExport { + private String namespace; + private ModelResolver modelResolver; + + protected NamespaceExportImpl() { + super(); + } + + public String getNamespace() { + return namespace; + } + + public void setNamespace(String namespace) { + this.namespace = namespace; + } + + public ModelResolver getModelResolver() { + return modelResolver; + } + + public void setModelResolver(ModelResolver modelResolver) { + this.modelResolver = modelResolver; + } + +} diff --git a/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceExportProcessor.java b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceExportProcessor.java new file mode 100644 index 0000000000..bf5d636044 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceExportProcessor.java @@ -0,0 +1,118 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.contribution.namespace.impl; + +import static javax.xml.stream.XMLStreamConstants.START_ELEMENT; + +import javax.xml.namespace.QName; +import javax.xml.stream.XMLStreamConstants; +import javax.xml.stream.XMLStreamException; +import javax.xml.stream.XMLStreamReader; +import javax.xml.stream.XMLStreamWriter; + +import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint; +import org.apache.tuscany.sca.contribution.namespace.NamespaceExport; +import org.apache.tuscany.sca.contribution.namespace.NamespaceImportExportFactory; +import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.contribution.service.ContributionReadException; +import org.apache.tuscany.sca.contribution.service.ContributionResolveException; +import org.apache.tuscany.sca.contribution.service.ContributionWriteException; + +/** + * Artifact processor for Namespace export + * + * @version $Rev$ $Date$ + */ +public class NamespaceExportProcessor implements StAXArtifactProcessor<NamespaceExport> { + + private static final String SCA10_NS = "http://www.osoa.org/xmlns/sca/1.0"; + private static final QName EXPORT = new QName(SCA10_NS, "export"); + private static final String NAMESPACE = "namespace"; + + private final NamespaceImportExportFactory factory; + + public NamespaceExportProcessor(ModelFactoryExtensionPoint modelFactories) { + this.factory = modelFactories.getFactory(NamespaceImportExportFactory.class); + } + + public QName getArtifactType() { + return EXPORT; + } + + public Class<NamespaceExport> getModelType() { + return NamespaceExport.class; + } + + /** + * Process <export namespace=""/> + */ + public NamespaceExport read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException { + NamespaceExport namespaceExport = this.factory.createNamespaceExport(); + QName element = null; + + while (reader.hasNext()) { + int event = reader.getEventType(); + switch (event) { + case START_ELEMENT: + element = reader.getName(); + + // Read <export> + if (EXPORT.equals(element)) { + String ns = reader.getAttributeValue(null, NAMESPACE); + if (ns == null) { + throw new ContributionReadException("Attribute 'namespace' is missing"); + } + namespaceExport.setNamespace(ns); + } + + break; + case XMLStreamConstants.END_ELEMENT: + if (EXPORT.equals(reader.getName())) { + return namespaceExport; + } + break; + } + + // Read the next element + if (reader.hasNext()) { + reader.next(); + } + } + + return namespaceExport; + } + + public void write(NamespaceExport namespaceExport, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException { + + // Write <export> + writer.writeStartElement(EXPORT.getNamespaceURI(), EXPORT.getLocalPart()); + + if (namespaceExport.getNamespace() != null) { + writer.writeAttribute(NAMESPACE, namespaceExport.getNamespace()); + } + + writer.writeEndElement(); + } + + public void resolve(NamespaceExport model, ModelResolver resolver) throws ContributionResolveException { + + } +} diff --git a/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceImportExportFactoryImpl.java b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceImportExportFactoryImpl.java new file mode 100644 index 0000000000..1146e593a9 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceImportExportFactoryImpl.java @@ -0,0 +1,41 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.contribution.namespace.impl; + +import org.apache.tuscany.sca.contribution.namespace.NamespaceExport; +import org.apache.tuscany.sca.contribution.namespace.NamespaceImport; +import org.apache.tuscany.sca.contribution.namespace.NamespaceImportExportFactory; + +/** + * Namespace Import/Export model factory implementation + * + * @version $Rev$ $Date$ + */ +public class NamespaceImportExportFactoryImpl implements NamespaceImportExportFactory { + + public NamespaceImport createNamespaceImport() { + return new NamespaceImportImpl(); + } + + public NamespaceExport createNamespaceExport() { + return new NamespaceExportImpl(); + } + +} diff --git a/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceImportExportListener.java b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceImportExportListener.java new file mode 100644 index 0000000000..e4c3a722d3 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceImportExportListener.java @@ -0,0 +1,98 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.contribution.namespace.impl; + +import org.apache.tuscany.sca.contribution.Contribution; +import org.apache.tuscany.sca.contribution.Export; +import org.apache.tuscany.sca.contribution.Import; +import org.apache.tuscany.sca.contribution.namespace.NamespaceExport; +import org.apache.tuscany.sca.contribution.namespace.NamespaceImport; +import org.apache.tuscany.sca.contribution.resolver.DefaultImportAllModelResolver; +import org.apache.tuscany.sca.contribution.service.ContributionListener; +import org.apache.tuscany.sca.contribution.service.ContributionRepository; + +/** + * Namespace Import/Export contribution listener + * The listener would process all import/export from a given contribution + * and initialize the model resolvers properly + * + * @version $Rev$ $Date$ + */ +public class NamespaceImportExportListener implements ContributionListener { + + /** + * Initialize the import/export model resolvers + * Export model resolvers are same as Contribution model resolver + * Import model resolvers are matched to a specific contribution if a location uri is specified, + * otherwise it try to resolve agains all the other contributions + * Also set the exporting contributions used by contribution classloaders to + * match import/export for class loading. + */ + public void contributionAdded(ContributionRepository repository, Contribution contribution) { + // Initialize the contribution exports + for (Export export: contribution.getExports()) { + export.setModelResolver(contribution.getModelResolver()); + } + + // Initialize the contribution imports + for (Import import_: contribution.getImports()) { + boolean initialized = false; + + if (import_ instanceof NamespaceImport) { + NamespaceImport namespaceImport = (NamespaceImport)import_; + + // Find a matching contribution + if (namespaceImport.getLocation() != null) { + Contribution targetContribution = repository.getContribution(namespaceImport.getLocation()); + if (targetContribution != null) { + + // Find a matching contribution export + for (Export export: targetContribution.getExports()) { + if (export instanceof NamespaceExport) { + NamespaceExport namespaceExport = (NamespaceExport)export; + if (namespaceImport.getNamespace().equals(namespaceExport.getNamespace())) { + namespaceImport.setModelResolver(namespaceExport.getModelResolver()); + initialized = true; + break; + } + } + } + } + } + + //if no location was specified, try to resolve with any contribution + if( !initialized ) { + // Use a resolver that will consider all contributions + import_.setModelResolver(new DefaultImportAllModelResolver(import_, repository.getContributions())); + } + } + } + + } + + public void contributionRemoved(ContributionRepository repository, Contribution contribution) { + + } + + public void contributionUpdated(ContributionRepository repository, Contribution oldContribution, Contribution contribution) { + + } + +} diff --git a/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceImportImpl.java b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceImportImpl.java new file mode 100644 index 0000000000..6d2a31f702 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceImportImpl.java @@ -0,0 +1,92 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.contribution.namespace.impl; + +import org.apache.tuscany.sca.contribution.Export; +import org.apache.tuscany.sca.contribution.namespace.NamespaceExport; +import org.apache.tuscany.sca.contribution.namespace.NamespaceImport; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; + +/** + * The representation of an import for the contribution + * + * @version $Rev$ $Date$ + */ +public class NamespaceImportImpl implements NamespaceImport { + private ModelResolver modelResolver; + + /** + * The namespace to be imported + */ + private String namespace; + /** + * Optional location URI pointing to a Contribution that exports the namespace + */ + private String location; + + + protected NamespaceImportImpl() { + super(); + } + + public String getLocation() { + return location; + } + + public void setLocation(String location) { + this.location = location; + } + + public String getNamespace() { + return namespace; + } + + public void setNamespace(String namespace) { + this.namespace = namespace; + } + + public ModelResolver getModelResolver() { + return modelResolver; + } + + public void setModelResolver(ModelResolver modelResolver) { + this.modelResolver = modelResolver; + } + + + /** + * Match a NamespaceImport to a given NamespaceExport based on : + * location is not provided + * import and export namespaces match + */ + public boolean match(Export export) { + if (export instanceof NamespaceExport) { + if (this.getNamespace().equals(((NamespaceExport)export).getNamespace())) { + return true; + } + } + return false; + } + + @Override + public String toString() { + return String.valueOf(namespace); + } +} diff --git a/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceImportProcessor.java b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceImportProcessor.java new file mode 100644 index 0000000000..9a4475ef23 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/contribution-namespace/src/main/java/org/apache/tuscany/sca/contribution/namespace/impl/NamespaceImportProcessor.java @@ -0,0 +1,127 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.contribution.namespace.impl; + +import static javax.xml.stream.XMLStreamConstants.START_ELEMENT; + +import javax.xml.namespace.QName; +import javax.xml.stream.XMLStreamConstants; +import javax.xml.stream.XMLStreamException; +import javax.xml.stream.XMLStreamReader; +import javax.xml.stream.XMLStreamWriter; + +import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint; +import org.apache.tuscany.sca.contribution.namespace.NamespaceImport; +import org.apache.tuscany.sca.contribution.namespace.NamespaceImportExportFactory; +import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.contribution.service.ContributionReadException; +import org.apache.tuscany.sca.contribution.service.ContributionResolveException; +import org.apache.tuscany.sca.contribution.service.ContributionWriteException; + +/** + * Artifact processor for Namespace import + * + * @version $Rev$ $Date$ + */ +public class NamespaceImportProcessor implements StAXArtifactProcessor<NamespaceImport> { + private static final String SCA10_NS = "http://www.osoa.org/xmlns/sca/1.0"; + + private static final QName IMPORT = new QName(SCA10_NS, "import"); + + private static final String NAMESPACE = "namespace"; + private static final String LOCATION = "location"; + + private final NamespaceImportExportFactory factory; + + public NamespaceImportProcessor(ModelFactoryExtensionPoint modelFactories) { + this.factory = modelFactories.getFactory(NamespaceImportExportFactory.class); + } + + public QName getArtifactType() { + return IMPORT; + } + + public Class<NamespaceImport> getModelType() { + return NamespaceImport.class; + } + + /** + * Process <import namespace="" location=""/> + */ + public NamespaceImport read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException { + NamespaceImport namespaceImport = this.factory.createNamespaceImport(); + QName element; + + while (reader.hasNext()) { + int event = reader.getEventType(); + switch (event) { + case START_ELEMENT: + element = reader.getName(); + + // Read <import> + if (IMPORT.equals(element)) { + String ns = reader.getAttributeValue(null, NAMESPACE); + if (ns == null) { + throw new ContributionReadException("Attribute 'namespace' is missing"); + } + namespaceImport.setNamespace(ns); + + String location = reader.getAttributeValue(null, LOCATION); + if (location != null) { + namespaceImport.setLocation(location); + } + } + break; + case XMLStreamConstants.END_ELEMENT: + if (IMPORT.equals(reader.getName())) { + return namespaceImport; + } + break; + } + + // Read the next element + if (reader.hasNext()) { + reader.next(); + } + } + + return namespaceImport; + } + + public void write(NamespaceImport namespaceImport, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException { + + // Write <import> + writer.writeStartElement(IMPORT.getNamespaceURI(), IMPORT.getLocalPart()); + + if (namespaceImport.getNamespace() != null) { + writer.writeAttribute(NAMESPACE, namespaceImport.getNamespace()); + } + if (namespaceImport.getLocation() != null) { + writer.writeAttribute(LOCATION, namespaceImport.getLocation()); + } + + writer.writeEndElement(); + } + + + public void resolve(NamespaceImport model, ModelResolver resolver) throws ContributionResolveException { + } +} |