package org.apache.maven.scm.provider.clearcase.command.update;
   
   /*
    * 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.ScmException;
  import org.apache.maven.scm.ScmFileSet;
  import org.apache.maven.scm.ScmVersion;
  import org.apache.maven.scm.command.changelog.ChangeLogCommand;
  import org.apache.maven.scm.command.update.AbstractUpdateCommand;
  import org.apache.maven.scm.command.update.UpdateScmResult;
  import org.apache.maven.scm.provider.ScmProviderRepository;
  import org.apache.maven.scm.provider.clearcase.command.ClearCaseCommand;
  import org.apache.maven.scm.provider.clearcase.command.changelog.ClearCaseChangeLogCommand;
  import org.codehaus.plexus.util.cli.CommandLineException;
  import org.codehaus.plexus.util.cli.CommandLineUtils;
  import org.codehaus.plexus.util.cli.Commandline;
  
  import java.io.File;
  
  /**
   * @author <a href="mailto:wim.deblauwe@gmail.com">Wim Deblauwe</a>
   * @author Olivier Lamy
   *
   */
  public class ClearCaseUpdateCommand
      extends AbstractUpdateCommand
      implements ClearCaseCommand
  {
      /** {@inheritDoc} */
      protected UpdateScmResult executeUpdateCommand( ScmProviderRepository repository, ScmFileSet fileSet,
                                                      ScmVersion version )
          throws ScmException
      {
          if ( getLogger().isDebugEnabled() )
          {
              getLogger().debug( "executing update command..." );
          }
          Commandline cl = createCommandLine( fileSet );
  
          ClearCaseUpdateConsumer consumer = new ClearCaseUpdateConsumer( getLogger() );
  
          CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();
  
          int exitCode;
  
          try
          {
              if ( getLogger().isDebugEnabled() )
              {
                  getLogger().debug(
                                     "Executing: " + cl.getWorkingDirectory().getAbsolutePath() + ">>"
                                         + cl.toString() );
              }
              exitCode = CommandLineUtils.executeCommandLine( cl, consumer, stderr );
          }
          catch ( CommandLineException ex )
          {
              throw new ScmException( "Error while executing clearcase command.", ex );
          }
  
          if ( exitCode != 0 )
          {
              return new UpdateScmResult( cl.toString(), "The cleartool command failed.", stderr.getOutput(), false );
          }
  
          return new UpdateScmResult( cl.toString(), consumer.getUpdatedFiles() );
      }
  
      /** {@inheritDoc} */
      protected ChangeLogCommand getChangeLogCommand()
      {
          ClearCaseChangeLogCommand changeLogCmd = new ClearCaseChangeLogCommand();
  
          changeLogCmd.setLogger( getLogger() );
  
          return changeLogCmd;
      }
  
      // ----------------------------------------------------------------------
      //
      // ----------------------------------------------------------------------
  
     public static Commandline createCommandLine( ScmFileSet scmFileSet )
     {
         Commandline command = new Commandline();
 
         File workingDirectory = scmFileSet.getBasedir();
 
         command.setWorkingDirectory( workingDirectory.getAbsolutePath() );
 
         command.setExecutable( "cleartool" );
 
         command.createArg().setValue( "update" );
 
         command.createArg().setValue( "-f" );
 
         return command;
     }
 }