package org.apache.maven.scm.provider.accurev.cli;
   
   /*
    * 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.
   */
  
  import java.util.List;
  import java.util.Map;
  
  import org.apache.maven.scm.log.ScmLogger;
  import org.apache.maven.scm.provider.accurev.FileDifference;
  
  /**
   * 
   */
  public class DiffConsumer
      extends XppStreamConsumer
  {
  
      private List<FileDifference> results;
  
      private FileDifference currentDifference;
  
      public DiffConsumer( ScmLogger logger, List<FileDifference> results )
      {
          super( logger );
          this.results = results;
      }
  
      @Override
      protected void startTag( List<String> tagPath, Map<String, String> attributes )
      {
          String tagName = getTagName( tagPath );
          if ( "Element".equals( tagName ) )
          {
              currentDifference = new FileDifference();
          }
          else if ( "Stream2".equals( tagName ) && attributes.get( "Name" ) != null )
          {
              currentDifference.setElementId( Long.parseLong( attributes.get( "eid" ) ) );
              currentDifference.setNewVersion( attributes.get( "Name" ), attributes.get( "Version" ) );
          }
          else if ( "Stream1".equals( tagName ) && attributes.get( "Name" ) != null )
          {
              currentDifference.setElementId( Long.parseLong( attributes.get( "eid" ) ) );
              currentDifference.setOldVersion( attributes.get( "Name" ), attributes.get( "Version" ) );
          }
  
      }
  
      @Override
      protected void endTag( List<String> tagPath )
      {
          String tagName = getTagName( tagPath );
          if ( "Element".equals( tagName ) )
          {
              if ( currentDifference.getNewFile() != null || currentDifference.getOldFile() != null )
              {
                  results.add( currentDifference );
              }
          }
      }
  
  }