package org.apache.maven.scm.provider.starteam.command.changelog;
   
   /*
    * 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 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.starteam.command.StarteamCommand;
  import org.apache.maven.scm.provider.starteam.command.StarteamCommandLineUtils;
  import org.apache.maven.scm.provider.starteam.repository.StarteamScmProviderRepository;
  import org.codehaus.plexus.util.StringUtils;
  import org.codehaus.plexus.util.cli.CommandLineException;
  import org.codehaus.plexus.util.cli.CommandLineUtils;
  import org.codehaus.plexus.util.cli.Commandline;
  
  import java.util.Date;
  
  /**
   * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>
   * @author Olivier Lamy
   *
   */
  public class StarteamChangeLogCommand
      extends AbstractChangeLogCommand
      implements StarteamCommand
  {
      // ----------------------------------------------------------------------
      // AbstractChangeLogCommand Implementation
      // ----------------------------------------------------------------------
  
      /** {@inheritDoc} */
      protected ChangeLogScmResult executeChangeLogCommand( ScmProviderRepository repo, ScmFileSet fileSet,
                                                            Date startDate, Date endDate, ScmBranch branch,
                                                            String datePattern )
          throws ScmException
      {
          if ( ( branch != null || StringUtils.isNotEmpty( ( branch == null ) ? null : branch.getName() ) )
              && ( getLogger().isWarnEnabled() ) )
          {
              getLogger().warn( "This provider doesn't support changelog with on a given branch." );
          }
  
          StarteamScmProviderRepository repository = (StarteamScmProviderRepository) repo;
  
          // TODO: revision
          Commandline cl = createCommandLine( repository, fileSet, startDate );
  
          StarteamChangeLogConsumer consumer =
              new StarteamChangeLogConsumer( fileSet.getBasedir(), getLogger(), startDate, endDate, datePattern );
  
          CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();
  
          int exitCode;
  
          try
          {
              exitCode = CommandLineUtils.executeCommandLine( cl, consumer, stderr );
          }
          catch ( CommandLineException ex )
          {
              throw new ScmException( "Error while executing command.", ex );
          }
  
          if ( exitCode != 0 )
          {
              return new ChangeLogScmResult( cl.toString(), "The 'stcmd' command failed.", stderr.getOutput(), false );
          }
  
          return new ChangeLogScmResult( cl.toString(),
                                         new ChangeLogSet( consumer.getModifications(), startDate, endDate ) );
      }
  
      // ----------------------------------------------------------------------
      //
      // ----------------------------------------------------------------------
  
      public static Commandline createCommandLine( StarteamScmProviderRepository repo, ScmFileSet workingDirectory,
                                                   Date startDate )
     {
         //return the full history since we dont know to get hist log from
         //  creation date to a specific date yet
         return StarteamCommandLineUtils.createStarteamCommandLine( "hist", null, workingDirectory, repo );
 
         /**
          * unfortunately the below option only gives the hist from view creation date to
          * the specified date.  What good is that?????
          */
 
         /*
         if ( startDate != null )
         {
             SimpleDateFormat localFormat = new SimpleDateFormat();
 
             cl.createArg().setValue( "-cfgd" );
 
             cl.createArg().setValue( localFormat.format( startDate ).toString() );
         }
         */
 
     }
 }