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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.impl;
import java.util.List;
import javax.xml.namespace.QName;
import org.apache.tuscany.sca.assembly.AssemblyFactory;
import org.apache.tuscany.sca.assembly.Implementation;
import org.apache.tuscany.sca.assembly.xml.Constants;
import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.ModuleActivator;
import org.apache.tuscany.sca.core.UtilityExtensionPoint;
import org.apache.tuscany.sca.databinding.Mediator;
import org.apache.tuscany.sca.extension.helper.ImplementationActivator;
import org.apache.tuscany.sca.extension.helper.utils.DefaultPropertyValueObjectFactory;
import org.apache.tuscany.sca.extension.helper.utils.PropertyValueObjectFactory;
import org.apache.tuscany.sca.provider.ImplementationProvider;
import org.apache.tuscany.sca.provider.ImplementationProviderFactory;
import org.apache.tuscany.sca.provider.ProviderFactoryExtensionPoint;
import org.apache.tuscany.sca.runtime.RuntimeComponent;
/**
* A Tuscany ModuleActivator which activates all the ImplementationActivators
*
* @version $Rev$ $Date$
*/
public class ImplementationsActivator implements ModuleActivator {
protected List<ImplementationActivator> implementationActivators;
public void start(ExtensionPointRegistry registry) {
ModelFactoryExtensionPoint factories = registry.getExtensionPoint(ModelFactoryExtensionPoint.class);
AssemblyFactory assemblyFactory = factories.getFactory(AssemblyFactory.class);
Mediator mediator = registry.getExtensionPoint(UtilityExtensionPoint.class).getUtility(Mediator.class);
//FIXME Pass this factory differently as it's not an extension point
PropertyValueObjectFactory propertyFactory = new DefaultPropertyValueObjectFactory(mediator);
registry.addExtensionPoint(propertyFactory);
this.implementationActivators = DiscoveryUtils.discoverActivators(ImplementationActivator.class, registry);
StAXArtifactProcessorExtensionPoint staxProcessors = registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
ProviderFactoryExtensionPoint providerFactories = registry.getExtensionPoint(ProviderFactoryExtensionPoint.class);
for (final ImplementationActivator implementationActivator : implementationActivators) {
Class<Implementation> implClass = implementationActivator.getImplementationClass();
QName scdlQName = getSCDLQName(implClass);
staxProcessors.addArtifactProcessor(new SCDLProcessor(assemblyFactory, scdlQName, implClass, registry, factories));
if (implementationActivator.getImplementationClass() != null && providerFactories != null) {
addImplementationProvider(implementationActivator, providerFactories);
}
}
}
public void stop(ExtensionPointRegistry registry) {
StAXArtifactProcessorExtensionPoint staxProcessors = registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
for (final ImplementationActivator implementationActivator : implementationActivators) {
if (staxProcessors != null) {
StAXArtifactProcessor processor = staxProcessors.getProcessor(getSCDLQName(implementationActivator.getImplementationClass()));
if (processor != null) {
staxProcessors.removeArtifactProcessor(processor);
}
}
}
}
private void addImplementationProvider(final ImplementationActivator implementationActivator, ProviderFactoryExtensionPoint providerFactories) {
providerFactories.addProviderFactory(new ImplementationProviderFactory() {
public ImplementationProvider createImplementationProvider(final RuntimeComponent rc, final Implementation impl) {
if (impl instanceof PojoImplementation) {
return new ImplementationImplementationProvider(implementationActivator, rc, impl, ((PojoImplementation)impl).getUserImpl());
} else {
return new ImplementationImplementationProvider(implementationActivator, rc, impl, impl);
}
}
public Class getModelType() {
Class c = implementationActivator.getImplementationClass();
if (Implementation.class.isAssignableFrom(c)) {
return c;
} else {
return PojoImplementation.class;
}
}
});
}
protected QName getSCDLQName(Class implementationClass) {
String localName = implementationClass.getName();
if (localName.lastIndexOf('.') > -1) {
localName = localName.substring(localName.lastIndexOf('.') + 1);
}
if (localName.endsWith("Implementation")) {
localName = localName.substring(0, localName.length() - 14);
}
StringBuilder sb = new StringBuilder(localName);
for (int i=0; i<sb.length(); i++) {
if (Character.isUpperCase(sb.charAt(i))) {
sb.setCharAt(i, Character.toLowerCase(sb.charAt(i)));
} else {
break;
}
}
return new QName(Constants.SCA10_TUSCANY_NS, "implementation." + sb.toString());
}
}
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