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/*
* 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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