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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.implementation.java.introspect.impl;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import org.apache.tuscany.sca.assembly.AssemblyFactory;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.implementation.java.IntrospectionException;
import org.apache.tuscany.sca.implementation.java.JavaElementImpl;
import org.apache.tuscany.sca.implementation.java.JavaImplementation;
import org.apache.tuscany.sca.implementation.java.JavaResourceImpl;
import org.apache.tuscany.sca.implementation.java.introspect.BaseJavaClassVisitor;
import org.apache.tuscany.sca.implementation.java.introspect.JavaIntrospectionHelper;
import org.oasisopen.sca.annotation.ComponentName;
/**
* Processes {@link @ComponentName} annotations on a component implementation and adds
* a {@link JavaMappedProperty} to the component type which will be used to
* inject the appropriate component name.
*
* @version $Rev$ $Date$
*/
public class ComponentNameProcessor extends BaseJavaClassVisitor {
public ComponentNameProcessor(AssemblyFactory factory) {
super(factory);
}
public ComponentNameProcessor(ExtensionPointRegistry registry) {
super(registry);
}
@Override
public void visitMethod(Method method, JavaImplementation type) throws IntrospectionException {
if (method.getAnnotation(ComponentName.class) == null) {
return;
}
if (method.getParameterTypes().length != 1) {
throw new IllegalContextException("ComponentName setter must have one parameter", method);
}
Class<?> paramType = method.getParameterTypes()[0];
String name = JavaIntrospectionHelper.toPropertyName(method.getName());
if (String.class.equals(paramType)) {
JavaElementImpl element = new JavaElementImpl(method, 0);
element.setName(name);
element.setClassifer(org.apache.tuscany.sca.implementation.java.introspect.impl.Resource.class);
JavaResourceImpl resource = new JavaResourceImpl(element);
type.getResources().put(resource.getName(), resource);
} else {
throw new IllegalContextException(paramType.getName());
}
}
@Override
public void visitField(Field field, JavaImplementation type) throws IntrospectionException {
if (field.getAnnotation(ComponentName.class) == null) {
return;
}
Class<?> paramType = field.getType();
if (String.class.equals(paramType)) {
JavaElementImpl element = new JavaElementImpl(field);
element.setClassifer(Resource.class);
JavaResourceImpl resource = new JavaResourceImpl(element);
type.getResources().put(resource.getName(), resource);
} else {
throw new IllegalContextException(paramType.getName());
}
}
}
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