diff options
Diffstat (limited to 'branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache')
10 files changed, 782 insertions, 0 deletions
diff --git a/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/ResourceExport.java b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/ResourceExport.java new file mode 100644 index 0000000000..02f8e60376 --- /dev/null +++ b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/ResourceExport.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.resource; + +import org.apache.tuscany.sca.contribution.Export; + + +/** + * The representation of an resource export. + * + * @version $Rev$ $Date$ + */ +public interface ResourceExport extends Export { + + /** + * Get Resource that identifies the export + * + * @return The exported resource URI + */ + String getURI(); + + /** + * Set Resource that identifies the export + * + * @param resource uri The exported namespace + */ + void setURI(String URI); + +} diff --git a/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/ResourceImport.java b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/ResourceImport.java new file mode 100644 index 0000000000..e749b31ff6 --- /dev/null +++ b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/ResourceImport.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.resource; + +import org.apache.tuscany.sca.contribution.Import; + +/** + * The representation of an resource import. + * + * @version $Rev$ $Date$ + */ +public interface ResourceImport 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 URI that identifies the resource import + * + * @return The URI + */ + String getURI(); + + /** + * Set URI that identifies the resource import + * + * @param namespace The resource URI + */ + void setURI(String uri); + +}
\ No newline at end of file diff --git a/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/ResourceImportExportFactory.java b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/ResourceImportExportFactory.java new file mode 100644 index 0000000000..4119c344ce --- /dev/null +++ b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/ResourceImportExportFactory.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.resource; + +/** + * Base Resource import/export model factory + * + * @version $Rev$ $Date$ + */ +public interface ResourceImportExportFactory { + + /** + * Create a resource import model object + * + * @return The new ResourceImport model object + */ + ResourceImport createResourceImport(); + + /** + * Create a resource export model object + * + * @return The new ResourceExport model object + */ + ResourceExport createResourceExport(); +} diff --git a/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ArtifactModelResolver.java b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ArtifactModelResolver.java new file mode 100644 index 0000000000..cd5f97e62e --- /dev/null +++ b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ArtifactModelResolver.java @@ -0,0 +1,87 @@ +/* + * 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.resource.impl; + +import java.util.HashMap; +import java.util.Map; + +import org.apache.tuscany.sca.contribution.Artifact; +import org.apache.tuscany.sca.contribution.Contribution; +import org.apache.tuscany.sca.contribution.Import; +import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.contribution.resource.ResourceImport; + +/** + * A Model Resolver for ComponentType models. + * + * @version $Rev$ $Date$ + */ +public class ArtifactModelResolver implements ModelResolver { + private Contribution contribution; + private Map<String, Artifact> map = new HashMap<String, Artifact>(); + + public ArtifactModelResolver(Contribution contribution, ModelFactoryExtensionPoint modelFactories) { + this.contribution = contribution; + } + + public void addModel(Object resolved) { + Artifact artifact = (Artifact)resolved; + map.put(artifact.getURI(), artifact); + } + + public Object removeModel(Object resolved) { + return map.remove(((Artifact)resolved).getURI()); + } + + public <T> T resolveModel(Class<T> modelClass, T unresolved) { + + //get artifact URI + String uri = ((Artifact)unresolved).getURI(); + if (uri == null) { + return (T)unresolved; + } + + //lookup the componentType + Artifact resolved = (Artifact) map.get(uri); + if (resolved != null) { + return modelClass.cast(resolved); + } + + //If not found, delegate the resolution to the imports (in this case based on the resource imports) + + for (Import import_ : this.contribution.getImports()) { + if (import_ instanceof ResourceImport) { + ResourceImport resourceImport = (ResourceImport)import_; + //check the import location against the computed package name from the componentType URI + if (resourceImport.getURI().equals(uri)) { + // Delegate the resolution to the import resolver + resolved = resourceImport.getModelResolver().resolveModel(Artifact.class, (Artifact)unresolved); + if (!resolved.isUnresolved()) { + return modelClass.cast(resolved); + } + } + } + } + + return (T)unresolved; + } + +} diff --git a/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceExportImpl.java b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceExportImpl.java new file mode 100644 index 0000000000..c2d525dfef --- /dev/null +++ b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceExportImpl.java @@ -0,0 +1,58 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.contribution.resource.impl; + +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.contribution.resource.ResourceExport; + +/** + * The representation of an export for the contribution + * + * @version $Rev$ $Date$ + */ +public class ResourceExportImpl implements ResourceExport { + /** + * The resource URI to be exported + */ + private String uri; + + private ModelResolver modelResolver; + + protected ResourceExportImpl() { + super(); + } + + public String getURI() { + return uri; + } + + public void setURI(String uri) { + this.uri = uri; + } + + public ModelResolver getModelResolver() { + return modelResolver; + } + + public void setModelResolver(ModelResolver modelResolver) { + this.modelResolver = modelResolver; + } + +} diff --git a/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceExportProcessor.java b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceExportProcessor.java new file mode 100644 index 0000000000..96e642ce20 --- /dev/null +++ b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceExportProcessor.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.resource.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.processor.StAXArtifactProcessor; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.contribution.resource.ResourceExport; +import org.apache.tuscany.sca.contribution.resource.ResourceImportExportFactory; +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 Resource export + * + * @version $Rev$ $Date$ + */ +public class ResourceExportProcessor implements StAXArtifactProcessor<ResourceExport> { + + private static final String SCA10_NS = "http://www.osoa.org/xmlns/sca/1.0"; + private static final QName EXPORT_RESOURCE = new QName(SCA10_NS, "export.resource"); + private static final String URI = "uri"; + + private final ResourceImportExportFactory factory; + + public ResourceExportProcessor(ModelFactoryExtensionPoint modelFactories) { + this.factory = modelFactories.getFactory(ResourceImportExportFactory.class); + } + + public QName getArtifactType() { + return EXPORT_RESOURCE; + } + + public Class<ResourceExport> getModelType() { + return ResourceExport.class; + } + + /** + * Process <export.resource uri=""/> + */ + public ResourceExport read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException { + ResourceExport resourceExport = this.factory.createResourceExport(); + QName element = null; + + while (reader.hasNext()) { + int event = reader.getEventType(); + switch (event) { + case START_ELEMENT: + element = reader.getName(); + + // Read <export.resource> + if (EXPORT_RESOURCE.equals(element)) { + String uri = reader.getAttributeValue(null, URI); + if (uri == null) { + throw new ContributionReadException("Attribute 'uri' is missing"); + } + resourceExport.setURI(uri); + } + + break; + case XMLStreamConstants.END_ELEMENT: + if (EXPORT_RESOURCE.equals(reader.getName())) { + return resourceExport; + } + break; + } + + // Read the next element + if (reader.hasNext()) { + reader.next(); + } + } + + return resourceExport; + } + + public void write(ResourceExport resourceExport, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException { + + // Write <export.resource> + writer.writeStartElement(EXPORT_RESOURCE.getNamespaceURI(), EXPORT_RESOURCE.getLocalPart()); + + if (resourceExport.getURI() != null) { + writer.writeAttribute(URI, resourceExport.getURI()); + } + + writer.writeEndElement(); + } + + public void resolve(ResourceExport model, ModelResolver resolver) throws ContributionResolveException { + + } +} diff --git a/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceImportExportFactoryImpl.java b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceImportExportFactoryImpl.java new file mode 100644 index 0000000000..880f5f5786 --- /dev/null +++ b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceImportExportFactoryImpl.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.resource.impl; + +import org.apache.tuscany.sca.contribution.resource.ResourceExport; +import org.apache.tuscany.sca.contribution.resource.ResourceImport; +import org.apache.tuscany.sca.contribution.resource.ResourceImportExportFactory; + +/** + * Resource Import/Export model factory implementation + * + * @version $Rev$ $Date$ + */ +public class ResourceImportExportFactoryImpl implements ResourceImportExportFactory { + + public ResourceImport createResourceImport() { + return new ResourceImportImpl(); + } + + public ResourceExport createResourceExport() { + return new ResourceExportImpl(); + } + +} diff --git a/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceImportExportListener.java b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceImportExportListener.java new file mode 100644 index 0000000000..fa3674d678 --- /dev/null +++ b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceImportExportListener.java @@ -0,0 +1,97 @@ +/* + * 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.resource.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.resolver.DefaultImportAllModelResolver; +import org.apache.tuscany.sca.contribution.resource.ResourceExport; +import org.apache.tuscany.sca.contribution.resource.ResourceImport; +import org.apache.tuscany.sca.contribution.service.ContributionListener; +import org.apache.tuscany.sca.contribution.service.ContributionRepository; + +/** + * Resource 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 ResourceImportExportListener 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 ResourceImport) { + ResourceImport resourceImport = (ResourceImport)import_; + + // Find a matching contribution + if (resourceImport.getLocation() != null) { + Contribution targetContribution = repository.getContribution(resourceImport.getLocation()); + if (targetContribution != null) { + + // Find a matching contribution export + for (Export export: targetContribution.getExports()) { + if (export instanceof ResourceExport) { + ResourceExport resourceExport = (ResourceExport)export; + if (resourceImport.getURI().equals(resourceExport.getURI())) { + resourceImport.setModelResolver(resourceExport.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/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceImportImpl.java b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceImportImpl.java new file mode 100644 index 0000000000..0baa511b31 --- /dev/null +++ b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceImportImpl.java @@ -0,0 +1,107 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.contribution.resource.impl; + +import java.util.List; + +import org.apache.tuscany.sca.contribution.Contribution; +import org.apache.tuscany.sca.contribution.Export; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.contribution.resource.ResourceExport; +import org.apache.tuscany.sca.contribution.resource.ResourceImport; + +/** + * The representation of an import for the contribution + * + * @version $Rev$ $Date$ + */ +public class ResourceImportImpl implements ResourceImport { + /** + * The resource URI to be imported + */ + private String uri; + + private ModelResolver modelResolver; + private List<Contribution> exportContributions; + + /** + * Optional location URI pointing to a Contribution that exports the resource + */ + private String location; + + + protected ResourceImportImpl() { + super(); + } + + public String getLocation() { + return location; + } + + public void setLocation(String location) { + this.location = location; + } + + public String getURI() { + return uri; + } + + public void setURI(String uri) { + this.uri = uri; + } + + public ModelResolver getModelResolver() { + return modelResolver; + } + + public void setModelResolver(ModelResolver modelResolver) { + this.modelResolver = modelResolver; + } + + public List<Contribution> getExportContributions() { + return exportContributions; + } + + public void setExportContributions(List<Contribution> contributions) { + this.exportContributions = contributions; + } + + /** + * Match a ResourceImport to a given ResourceExport based on : + * location is not provided + * import and export resource uri match + */ + public boolean match(Export export) { + if (export instanceof ResourceExport) { + if (this.getLocation() == null || this.getLocation().length() == 0) { + if (this.getURI().equals(((ResourceExport)export).getURI())) { + return true; + } + } + + } + return false; + } + + @Override + public String toString() { + return String.valueOf(uri); + } +} diff --git a/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceImportProcessor.java b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceImportProcessor.java new file mode 100644 index 0000000000..9e337b898e --- /dev/null +++ b/branches/sca-java-1.2.1/modules/contribution-resource/src/main/java/org/apache/tuscany/sca/contribution/resource/impl/ResourceImportProcessor.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.resource.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.processor.StAXArtifactProcessor; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.contribution.resource.ResourceImport; +import org.apache.tuscany.sca.contribution.resource.ResourceImportExportFactory; +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 ResourceImportProcessor implements StAXArtifactProcessor<ResourceImport> { + private static final String SCA10_NS = "http://www.osoa.org/xmlns/sca/1.0"; + + private static final QName IMPORT_RESOURCE = new QName(SCA10_NS, "import.resource"); + + private static final String URI = "uri"; + private static final String LOCATION = "location"; + + private final ResourceImportExportFactory factory; + + public ResourceImportProcessor(ModelFactoryExtensionPoint modelFactories) { + this.factory = modelFactories.getFactory(ResourceImportExportFactory.class); + } + + public QName getArtifactType() { + return IMPORT_RESOURCE; + } + + public Class<ResourceImport> getModelType() { + return ResourceImport.class; + } + + /** + * Process <import.resource uri="" location=""/> + */ + public ResourceImport read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException { + ResourceImport resourceImport = this.factory.createResourceImport(); + QName element; + + while (reader.hasNext()) { + int event = reader.getEventType(); + switch (event) { + case START_ELEMENT: + element = reader.getName(); + + // Read <import> + if (IMPORT_RESOURCE.equals(element)) { + String uri = reader.getAttributeValue(null, URI); + if (uri == null) { + throw new ContributionReadException("Attribute 'namespace' is missing"); + } + resourceImport.setURI(uri); + + String location = reader.getAttributeValue(null, LOCATION); + if (location != null) { + resourceImport.setLocation(location); + } + } + break; + case XMLStreamConstants.END_ELEMENT: + if (IMPORT_RESOURCE.equals(reader.getName())) { + return resourceImport; + } + break; + } + + // Read the next element + if (reader.hasNext()) { + reader.next(); + } + } + + return resourceImport; + } + + public void write(ResourceImport resourceImport, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException { + + // Write <import> + writer.writeStartElement(IMPORT_RESOURCE.getNamespaceURI(), IMPORT_RESOURCE.getLocalPart()); + + if (resourceImport.getURI() != null) { + writer.writeAttribute(URI, resourceImport.getURI()); + } + if (resourceImport.getLocation() != null) { + writer.writeAttribute(LOCATION, resourceImport.getLocation()); + } + + writer.writeEndElement(); + } + + + public void resolve(ResourceImport model, ModelResolver resolver) throws ContributionResolveException { + } +} |