001/* 
002 * (C) Copyright 2006-2011 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     bstefanescu
018 *
019 * $Id$
020 */
021
022package org.nuxeo.ecm.platform.rendering.fm.extensions;
023
024import java.util.HashMap;
025import java.util.Map;
026
027/**
028 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
029 */
030public class BlockWriterRegistry {
031
032    protected final Map<String, BlockWriter> blockMap = new HashMap<String, BlockWriter>();
033
034    public void addBlock(String name, BlockWriter bw) {
035        BlockWriter existingBw = blockMap.get(name);
036        if (existingBw != null) {
037            // get the base block and set its superBlock
038            if (existingBw.baseBlock != null) {
039                existingBw.baseBlock.superBlock = bw;
040                existingBw.baseBlock = bw;
041            } else {
042                existingBw.superBlock = bw;
043                existingBw.baseBlock = bw;
044            }
045        } else {
046            blockMap.put(name, bw);
047        }
048    }
049
050    public BlockWriter getBlock(String name) {
051        return blockMap.get(name);
052    }
053
054}