/*
    * 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.myfaces.config.impl.digester.elements;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  import org.apache.myfaces.config.element.ViewPoolMapping;
  
  /**
   * 
   * @author Leonardo Uribe
   * @since 2.1.0
   */
  public class FacesConfigExtensionImpl extends org.apache.myfaces.config.element.FacesConfigExtension
  {
      /**
       * 
       */
      private static final long serialVersionUID = 7624583794474223864L;
      
      private List<org.apache.myfaces.config.element.FaceletsProcessing> _faceletsProcessingList = 
          new ArrayList<org.apache.myfaces.config.element.FaceletsProcessing>();
      
      private List<ViewPoolMapping> viewPoolMappings;
      private transient List<ViewPoolMapping> unmodifiableViewPoolMappings;
  
      @Override
      public List<org.apache.myfaces.config.element.FaceletsProcessing> getFaceletsProcessingList()
      {
          return _faceletsProcessingList;
      }
      
      public void addFaceletsProcessing(org.apache.myfaces.config.element.FaceletsProcessing elem)
      {
          _faceletsProcessingList.add(elem);
      }
      
      @Override
      public List<ViewPoolMapping> getViewPoolMappings()
      {
          if (viewPoolMappings == null)
          {
              return Collections.emptyList();
          }
          if (unmodifiableViewPoolMappings == null)
          {
              unmodifiableViewPoolMappings = 
                  Collections.unmodifiableList(viewPoolMappings);
          }
          return unmodifiableViewPoolMappings;
      }
      
      public void addViewPoolMapping(ViewPoolMapping mapping)
      {
          if (viewPoolMappings == null)
          {
              viewPoolMappings = new ArrayList<ViewPoolMapping>();
          }
          viewPoolMappings.add(mapping);
      }
  }