package org.apache.maven.scm.provider.tfs.command.consumer;
   
   /*
    * 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.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import org.apache.maven.scm.ScmFile;
  import org.apache.maven.scm.ScmFileStatus;
  import org.apache.maven.scm.log.ScmLogger;
  import org.codehaus.plexus.util.cli.StreamConsumer;
  
  /**
   * 
   */
  public class ChangedFileConsumer
      implements StreamConsumer
  {
  
      private ScmLogger logger;
  
      private static final String KEY_CHANGE = "Change";
  
      private static final String KEY_LOCAL_ITEM = "Local item";
  
      private static final String CHANGE_EDIT = "edit";
  
      private static final String CHANGE_ADD = "add";
  
      private Map<String, String> values = new HashMap<String, String>();
  
      private List<ScmFile> changedFiles = new ArrayList<ScmFile>();
  
      public ChangedFileConsumer( ScmLogger logger )
      {
          this.logger = logger;
      }
  
      public void consumeLine( String line )
      {
          if ( line.indexOf( ':' ) >= 0 )
          {
              String[] s = line.split( ":", 2 );
              if ( s.length > 1 )
              {
                  values.put( s[0].trim(), s[1].trim() );
              }
          }
          if ( line.trim().equals( "" ) )
          {
              extractChangedFile();
          }
          logger.debug( "line -" + line );
      }
  
      private void extractChangedFile()
      {
          String change = getChange();
          if ( change != null )
          {
              ScmFileStatus stat = ScmFileStatus.UNKNOWN;
              if ( change.equals( ChangedFileConsumer.CHANGE_EDIT ) )
              {
                  stat = ScmFileStatus.MODIFIED;
              }
              if ( change.equals( ChangedFileConsumer.CHANGE_ADD ) )
              {
                  stat = ScmFileStatus.ADDED;
              }
              changedFiles.add( new ScmFile( getLocalPath(), stat ) );
              values.clear();
          }
      }
  
      public List<ScmFile> getChangedFiles()
      {
          if ( values.size() > 0 )
          {
              extractChangedFile();
          }
         return changedFiles;
     }
 
     private String getChange()
     {
         return (String) values.get( KEY_CHANGE );
     }
 
     private String getLocalPath()
     {
         String local = (String) values.get( KEY_LOCAL_ITEM );
         if ( local != null )
         {
             local = local.split( "]", 2 )[1].trim();
         }
         return local;
     }
 
 }