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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.domain.search;
import java.util.HashMap;
import org.apache.tuscany.sca.domain.search.impl.Document;
/**
* This class is a {@link DocumentProcessor} that holds a map from {@link Class}
* -> {@link DocumentProcessor}, and based on this map this processor delegates
* the object to be processed to its respective {@link DocumentProcessor}.
*
* @version $Rev$ $Date$
*/
public class DocumentProcessorsMap extends HashMap<Class<?>, DocumentProcessor> implements DocumentProcessor {
private static final long serialVersionUID = 3967390896890947159L;
private DocumentProcessor findDocumentProcessor(Object object, Class<?> clazz) {
DocumentProcessor processor = get(clazz);
if (processor == null) {
Class<?>[] interfaces = clazz.getInterfaces();
for (Class<?> interfac : interfaces) {
processor = findDocumentProcessor(object, interfac);
if (processor != null) {
return processor;
}
}
if (!clazz.isInterface()) {
return findDocumentProcessor(object, clazz.getSuperclass());
}
}
return processor;
}
/**
* @see DocumentProcessor#getDocumentKey(Object)
*/
public Document process(DocumentProcessor parentProcessor,
DocumentMap documents,
Object object,
Document document,
String parent) {
DocumentProcessor processor = findDocumentProcessor(object, object.getClass());
if (processor == null) {
throw new IllegalArgumentException();
}
if (document == null) {
document = documents.get(processor.getDocumentKey(object));
if (document == null) {
document = FAKE_DOCUMENT;
}
}
processor.process(parentProcessor, documents, object, document, parent);
return document;
}
/**
* @see DocumentProcessor#getDocumentKey(Object)
*/
public Object getDocumentKey(Object object) {
DocumentProcessor processor = findDocumentProcessor(object, object.getClass());
if (processor != null) {
return processor.getDocumentKey(object);
} else {
return null;
}
}
}
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