package org.apache.maven.scm.provider.starteam.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.starteam.command.StarteamCommand;
  import org.apache.maven.scm.provider.starteam.command.StarteamCommandLineUtils;
  import org.apache.maven.scm.provider.starteam.command.changelog.StarteamChangeLogCommand;
  import org.apache.maven.scm.provider.starteam.command.checkout.StarteamCheckOutConsumer;
  import org.apache.maven.scm.provider.starteam.repository.StarteamScmProviderRepository;
  import org.codehaus.plexus.util.StringUtils;
  import org.codehaus.plexus.util.cli.CommandLineUtils;
  import org.codehaus.plexus.util.cli.Commandline;
  import org.codehaus.plexus.util.cli.DefaultConsumer;
  import org.codehaus.plexus.util.cli.StreamConsumer;
  
  import java.io.File;
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * @author <a href="mailto:dantran@gmail.com">Dan T. Tran</a>
   *
   */
  public class StarteamUpdateCommand
      extends AbstractUpdateCommand
      implements StarteamCommand
  {
      // ----------------------------------------------------------------------
      // AbstractUpdateCommand Implementation
      // ----------------------------------------------------------------------
  
      /** {@inheritDoc} */
      protected UpdateScmResult executeUpdateCommand( ScmProviderRepository repo, ScmFileSet fileSet, ScmVersion version )
          throws ScmException
      {
          if ( getLogger().isInfoEnabled() )
          {
              getLogger().info( "Working directory: " + fileSet.getBasedir().getAbsolutePath() );
          }
  
          StarteamScmProviderRepository repository = (StarteamScmProviderRepository) repo;
  
          StarteamCheckOutConsumer consumer = new StarteamCheckOutConsumer( getLogger(), fileSet.getBasedir() );
  
          CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();
  
          List<File> updateFiles = fileSet.getFileList();
  
          if ( updateFiles.size() == 0 )
          {
              //update everything
              Commandline cl = createCommandLine( repository, fileSet, version );
  
              int exitCode = StarteamCommandLineUtils.executeCommandline( cl, consumer, stderr, getLogger() );
  
              if ( exitCode != 0 )
              {
                  return new UpdateScmResult( cl.toString(), "The starteam command failed.", stderr.getOutput(), false );
              }
              else
              {
                  //hiden feature to allow Continuous Integration machine to
                  // delete local files. It affectively remove all build ouput as well
                  String doDeleteLocal = System.getProperty( "maven.scm.starteam.deleteLocal" );
  
                  if ( "true".equalsIgnoreCase( doDeleteLocal ) )
                  {
                      this.deleteLocal( repository, fileSet, version );
                  }
              }
          }
          else
          {
              //update only interested files already on the local disk
              for ( int i = 0; i < updateFiles.size(); ++i )
             {
                 File updateFile = (File) updateFiles.get( i );
                 ScmFileSet scmFileSet = new ScmFileSet( fileSet.getBasedir(), updateFile );
                 Commandline cl = createCommandLine( repository, scmFileSet, version );
 
                 int exitCode = StarteamCommandLineUtils.executeCommandline( cl, consumer, stderr, getLogger() );
 
                 if ( exitCode != 0 )
                 {
                     return new UpdateScmResult( cl.toString(), "The starteam command failed.", stderr.getOutput(),
                                                 false );
                 }
             }
         }
 
         return new UpdateScmResult( null, consumer.getCheckedOutFiles() );
 
     }
 
     // ----------------------------------------------------------------------
     //
     // ----------------------------------------------------------------------
 
     public static Commandline createCommandLine( StarteamScmProviderRepository repo, ScmFileSet fileSet,
                                                  ScmVersion version )
     {
         List<String> args = new ArrayList<String>();
 
         args.add( "-merge" );
         args.add( "-neverprompt" );
 
         if ( version != null && StringUtils.isNotEmpty( version.getName() ) )
         {
             args.add( "-vl" );
             args.add( version.getName() );
         }
 
         StarteamCommandLineUtils.addEOLOption( args );
 
         return StarteamCommandLineUtils.createStarteamCommandLine( "co", args, fileSet, repo );
     }
 
     /** {@inheritDoc} */
     protected ChangeLogCommand getChangeLogCommand()
     {
         StarteamChangeLogCommand command = new StarteamChangeLogCommand();
 
         command.setLogger( getLogger() );
 
         return command;
     }
 
     private void deleteLocal( StarteamScmProviderRepository repo, ScmFileSet fileSet, ScmVersion version )
         throws ScmException
     {
         if ( fileSet.getFileList().size() != 0 )
         {
             return;
         }
 
         Commandline cl = createDeleteLocalCommand( repo, fileSet, version );
 
         StreamConsumer consumer = new DefaultConsumer();
 
         CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();
 
         int exitCode = StarteamCommandLineUtils.executeCommandline( cl, consumer, stderr, getLogger() );
 
         if ( exitCode != 0 )
         {
             throw new ScmException( "Error executing delete-local: " + stderr.toString() );
         }
     }
 
     public static Commandline createDeleteLocalCommand( StarteamScmProviderRepository repo, ScmFileSet dir,
                                                         ScmVersion version )
     {
         List<String> args = new ArrayList<String>();
 
         if ( version != null && StringUtils.isNotEmpty( version.getName() ) )
         {
             args.add( "-cfgl" );
             args.add( version.getName() );
         }
 
         args.add( "-filter" );
         args.add( "N" );
 
         return StarteamCommandLineUtils.createStarteamCommandLine( "delete-local", args, dir, repo );
     }
 
 }