content: /**
   * 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.solr.util.plugin;
  
  import java.util.Map;
  
  import org.apache.solr.common.util.DOMUtil;
  import org.w3c.dom.Node;
  
  /**
   * 
   * @version $Id: MapPluginLoader.java 555343 2007-07-11 17:46:25Z hossman $
   * @since solr 1.3
   */
  public class MapPluginLoader<T extends MapInitializedPlugin> extends AbstractPluginLoader<T> 
  {
    private final Map<String,T> registry;
    
    public MapPluginLoader( String name, Map<String,T> map )
    {
      super( name );
      registry = map;
    }
  
    @Override
    protected void init(T plugin, Node node) throws Exception {
      Map<String,String> params = DOMUtil.toMapExcept( node.getAttributes(), "name","class" );
      plugin.init( params );
    }
  
    @Override
    protected T register(String name, T plugin) throws Exception {
      if( registry != null ) {
        return registry.put( name, plugin );
      }
      return null;
    }
  }
  