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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.contribution.processor;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.tuscany.sca.common.java.reflection.JavaIntrospectionHelper;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
/**
* The default implementation of an artifact processor extension point.
*
* @version $Rev$ $Date$
*/
abstract class DefaultArtifactProcessorExtensionPoint<P extends ArtifactProcessor<?>> {
protected final Map<Object, P> processorsByArtifactType = new HashMap<Object, P>();
protected final Map<Class<?>, P> processorsByModelType = new HashMap<Class<?>, P>();
protected ExtensionPointRegistry registry;
private JavaIntrospectionHelper introspectionHelper;
/**
* Constructs a new loader registry.
*/
DefaultArtifactProcessorExtensionPoint(ExtensionPointRegistry registry) {
this.registry = registry;
this.introspectionHelper = JavaIntrospectionHelper.getInstance(registry);
}
/**
* Returns the processor associated with the given artifact type.
*
* @param artifactType An artifact type
* @return The processor associated with the given artifact type
*/
public P getProcessor(Object artifactType) {
return processorsByArtifactType.get(artifactType);
}
/**
* Returns the processor associated with the given model type.
*
* @param modelType A model type
* @return The processor associated with the given model type
*/
public <T> P getProcessor(Class<T> modelType) {
P processor = processorsByModelType.get(modelType);
if (processor != null) {
return processor;
}
List<Class<?>> classes = introspectionHelper.getAllInterfaces(modelType);
for (Class<?> c : classes) {
processor = processorsByModelType.get(c);
if (processor != null) {
return processor;
}
}
return null;
}
}
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