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Diffstat (limited to 'sca-java-1.x/branches/sca-java-1.6.2/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/AbstractStAXArtifactProcessor.java')
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1 files changed, 132 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-1.6.2/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/AbstractStAXArtifactProcessor.java b/sca-java-1.x/branches/sca-java-1.6.2/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/AbstractStAXArtifactProcessor.java new file mode 100644 index 0000000000..9a521b5b79 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.6.2/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/AbstractStAXArtifactProcessor.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.extension.helper.utils; + +import java.lang.reflect.Method; + +import org.apache.tuscany.sca.assembly.AssemblyFactory; +import org.apache.tuscany.sca.assembly.ComponentType; +import org.apache.tuscany.sca.assembly.Implementation; +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.StAXArtifactProcessor; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.contribution.service.ContributionResolveException; +import org.apache.tuscany.sca.interfacedef.Interface; +import org.apache.tuscany.sca.interfacedef.InterfaceContract; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.interfacedef.impl.InterfaceContractImpl; +import org.apache.tuscany.sca.interfacedef.impl.InterfaceImpl; +import org.apache.tuscany.sca.interfacedef.impl.OperationImpl; + +/** + * TODO: couldn't something like this class be provided by the runtime? + * Each impl shouldn't have to have their own .componentType merging code + * + * @version $Rev$ $Date$ + */ +public abstract class AbstractStAXArtifactProcessor<I extends Implementation> implements StAXArtifactProcessor<I> { + + protected AssemblyFactory assemblyFactory; + + public AbstractStAXArtifactProcessor(AssemblyFactory assemblyFactory) { + this.assemblyFactory = assemblyFactory; + } + + public void resolve(I model, ModelResolver resolver) throws ContributionResolveException { + + addSideFileComponentType(model.getURI(), model, resolver); + + if (model instanceof DynamicImplementation) { + // if no services have been defined then add a dynamic one + if (model.getServices().size() < 1) { + Service dynamicService = createDynamicService(); + model.getServices().add(dynamicService); + } + } + + // Allow implementation classes to resolve themselves + try { + Method resolveMethod; + if ((resolveMethod = model.getClass().getMethod("resolve", ModelResolver.class)) != null) { + resolveMethod.invoke(model, resolver); + } + } catch (Exception e) { + } + + model.setUnresolved(false); + } + + protected void addSideFileComponentType(String name, Implementation impl, ModelResolver resolver) { + if (name == null) { + return; + } + int lastDot = name.lastIndexOf('.'); + if (lastDot < 0) { + return; + } + String sideFileName = name.substring(0, lastDot) + ".componentType"; + + ComponentType componentType = assemblyFactory.createComponentType(); + componentType.setURI(sideFileName); + componentType.setUnresolved(true); + + componentType = resolver.resolveModel(ComponentType.class, componentType); + + if (!componentType.isUnresolved()) { + for (Reference reference : componentType.getReferences()) { + impl.getReferences().add(reference); + } + for (Service service : componentType.getServices()) { + impl.getServices().add(service); + } + for (Property property : componentType.getProperties()) { + impl.getProperties().add(property); + } + if (componentType.getConstrainingType() != null) { + impl.setConstrainingType(componentType.getConstrainingType()); + } + } + } + + protected Service createDynamicService() { + Service dynamicService = assemblyFactory.createService(); + dynamicService.setName("$dynamic$"); + InterfaceContract dynamicInterfaceContract = new InterfaceContractImpl() {}; + Interface dynamicInterface = new DynamicInterfaceImpl(); + Operation dynamicOperation = new OperationImpl(); + dynamicOperation.setDynamic(true); + dynamicInterface.getOperations().add(dynamicOperation); + dynamicInterfaceContract.setInterface(dynamicInterface); + dynamicService.setInterfaceContract(dynamicInterfaceContract); + + return dynamicService; + } + + private static class DynamicInterfaceImpl extends InterfaceImpl { + @Override + public boolean isDynamic() { + return true; + } + + } + +}
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