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/**
*
* Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
* Licensed 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.core.system.assembly.impl;
import java.net.URL;
import org.apache.tuscany.core.config.ComponentTypeIntrospector;
import org.apache.tuscany.core.config.ConfigurationException;
import org.apache.tuscany.core.config.JavaIntrospectionHelper;
import org.apache.tuscany.core.config.impl.Java5ComponentTypeIntrospector;
import org.apache.tuscany.core.system.assembly.SystemImplementation;
import org.apache.tuscany.model.assembly.AssemblyFactory;
import org.apache.tuscany.model.assembly.AssemblyModelContext;
import org.apache.tuscany.model.assembly.ComponentType;
import org.apache.tuscany.model.assembly.Scope;
import org.apache.tuscany.model.assembly.Service;
import org.apache.tuscany.model.assembly.impl.AssemblyFactoryImpl;
import org.apache.tuscany.model.assembly.impl.ComponentImplementationImpl;
/**
* The default implementation of the system implementation assembly artifact
*
* @version $Rev$ $Date$
*/
public class SystemImplementationImpl extends ComponentImplementationImpl implements SystemImplementation {
private Class<?> implementationClass;
private AssemblyModelContext modelContext;
protected SystemImplementationImpl() {
}
public Class getImplementationClass() {
return implementationClass;
}
public void setImplementationClass(Class value) {
checkNotFrozen();
implementationClass = value;
}
public void initialize(AssemblyModelContext context) {
if (isInitialized())
return;
this.modelContext = context;
// Initialize the component type
ComponentType componentType = getComponentType();
if (componentType == null) {
componentType = createComponentType(implementationClass);
setComponentType(componentType);
}
super.initialize(modelContext);
}
/**
* Creates the component type
*/
private ComponentType createComponentType(Class<?> implClass) {
ComponentType componentType;
String baseName = JavaIntrospectionHelper.getBaseName(implClass);
URL componentTypeFile = implClass.getResource(baseName + ".componentType");
if (componentTypeFile != null) {
componentType = modelContext.getAssemblyLoader().loadComponentType(componentTypeFile.toString());
// FIXME workaround for TUSCANY-46 where the scope is not read - default system implementations to MODULE scope
for (Service service : componentType.getServices()) {
service.getServiceContract().setScope(Scope.MODULE);
}
} else {
AssemblyFactory factory = new AssemblyFactoryImpl();
ComponentTypeIntrospector introspector = new Java5ComponentTypeIntrospector(factory);
try {
componentType = introspector.introspect(implClass);
} catch (ConfigurationException e) {
throw new IllegalArgumentException("Unable to introspect implementation class: " + implClass.getName(), e);
}
}
return componentType;
}
}
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