package org.apache.maven.scm.provider.tfs.command;
   
   /*
    * 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.io.File;
  import java.util.ArrayList;
  import java.util.Date;
  import java.util.Iterator;
  import java.util.List;
  
  import org.apache.maven.scm.ChangeSet;
  import org.apache.maven.scm.ScmBranch;
  import org.apache.maven.scm.ScmException;
  import org.apache.maven.scm.ScmFileSet;
  import org.apache.maven.scm.command.changelog.AbstractChangeLogCommand;
  import org.apache.maven.scm.command.changelog.ChangeLogScmResult;
  import org.apache.maven.scm.command.changelog.ChangeLogSet;
  import org.apache.maven.scm.provider.ScmProviderRepository;
  import org.apache.maven.scm.provider.tfs.command.consumer.ErrorStreamConsumer;
  import org.apache.maven.scm.provider.tfs.command.consumer.TfsChangeLogConsumer;
  
  /**
   * @author Olivier Lamy
   *
   */
  public class TfsChangeLogCommand
      extends AbstractChangeLogCommand
  {
  
      protected ChangeLogScmResult executeChangeLogCommand( ScmProviderRepository r, ScmFileSet f, Date startDate,
                                                            Date endDate, ScmBranch branch, String datePattern )
          throws ScmException
      {
          List<ChangeSet> changeLogs = new ArrayList<ChangeSet>();
          Iterator<File> iter = f.getFileList().iterator();
          if ( !iter.hasNext() )
          {
              List<File> dir = new ArrayList<File>();
              // No files to iterate
              dir.add( f.getBasedir() );
              iter = dir.iterator();
          }
          TfsCommand command = null;
          // tf history takes only one file arg
          while ( iter.hasNext() )
          {
              TfsChangeLogConsumer out = new TfsChangeLogConsumer( getLogger() );
              ErrorStreamConsumer err = new ErrorStreamConsumer();
  
              command = createCommand( r, f, ( (File) iter.next() ) );
              int status = command.execute( out, err );
  
              if ( status != 0 || ( !out.hasBeenFed() && err.hasBeenFed() ) )
                  return new ChangeLogScmResult( command.getCommandString(), "Error code for TFS changelog command - "
                      + status, err.getOutput(), false );
              changeLogs.addAll( out.getLogs() );
          }
          return new ChangeLogScmResult( command.getCommandString(), new ChangeLogSet( changeLogs, startDate, endDate ) );
  
      }
  
      protected TfsCommand createCommand( ScmProviderRepository r, ScmFileSet f, File file )
      {
          TfsCommand command = new TfsCommand( "history", r, f, getLogger() );
          command.addArgument( "-format:detailed" );
          command.addArgument( file.getName() );
          return command;
      }
  }