/*
    * 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.ContractMapping;
  
  /**
   *
   * @author lu4242
   */
  public class ContractMappingImpl extends ContractMapping
  {
      private List<String> urlPatternList;
      private List<String> contractsList;
      
      private transient List <String> unmodifiableUrlPatternList;
      private transient List <String> unmodifiableContractsList;
  
      /**
       * @return the urlPattern
       */
      public List<String> getUrlPatternList()
      {
          if (urlPatternList == null)
          {
              return Collections.emptyList();
          }
          if (unmodifiableUrlPatternList == null)
          {
              unmodifiableUrlPatternList = 
                  Collections.unmodifiableList(urlPatternList);
          }
          return unmodifiableUrlPatternList;
      }
  
      /**
       * @return the contracts
       */
      public List<String> getContractList()
      {
          if (contractsList == null)
          {
              return Collections.emptyList();
          }
          if (unmodifiableContractsList == null)
          {
              unmodifiableContractsList = 
                  Collections.unmodifiableList(contractsList);
          }
          return unmodifiableContractsList;
      }
  
      public void addContract(String contract)
      {
          if (contractsList == null)
          {
              contractsList = new ArrayList<String>();
          }
          contractsList.add(contract);
      }
      
      public void addUrlPattern(String urlPattern)
      {
          if (urlPatternList == null)
          {
              urlPatternList = new ArrayList<String>();
          }
          urlPatternList.add(urlPattern);
      }
  
      @Override
      public String getUrlPattern()
      {
          return null;
      }
  
      @Override
      public String getContracts()
      {
          return null;
     }
 }