package org.apache.maven.scm.provider.jazz.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.ScmFile;
  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.jazz.command.JazzConstants;
  import org.apache.maven.scm.provider.jazz.command.JazzScmCommand;
  import org.apache.maven.scm.provider.jazz.command.changelog.JazzChangeLogCommand;
  import org.apache.maven.scm.provider.jazz.command.consumer.ErrorConsumer;
  
  //
  // The Maven SCM Plugin "update" goal is equivalent to the RTC "accept" command.
  //
  // NOTE: What is not clear from the docs, is that the accept command will also
  // update the sandbox with the changes that have been accepted into the repository.
  // However, I have checked with Rational Support, and this is indeed the expected
  // behaviour. This may come from the fact that you can accept changes into a
  // repository workspace, without having a sandbox loaded; though this makes no
  // sense to us from a maven usage context (as we only work in a sandbox).
  //
  // See the following links for additional information on the RTC "create snapshot" command:
  // RTC 2.0.0.2:
  // http://publib.boulder.ibm.com/infocenter/rtc/v2r0m0/topic/com.ibm.team.scm.doc/topics/r_scm_cli_accept.html
  // RTC 3.0:
  // http://publib.boulder.ibm.com/infocenter/clmhelp/v3r0/topic/com.ibm.team.scm.doc/topics/r_scm_cli_accept.html
  // RTC 3.0.1:
  // http://publib.boulder.ibm.com/infocenter/clmhelp/v3r0m1/topic/com.ibm.team.scm.doc/topics/r_scm_cli_accept.html
  //
  
  /**
   * @author <a href="mailto:ChrisGWarp@gmail.com">Chris Graham</a>
   */
  public class JazzUpdateCommand
      extends AbstractUpdateCommand
  {
      /**
       * {@inheritDoc}
       */
      protected UpdateScmResult executeUpdateCommand( ScmProviderRepository repo, ScmFileSet fileSet, ScmVersion version )
          throws ScmException
      {
          if ( getLogger().isDebugEnabled() )
          {
              getLogger().debug( "Executing update command..." );
          }
  
          JazzUpdateConsumer updateConsumer = new JazzUpdateConsumer( repo, getLogger() );
          ErrorConsumer err = new ErrorConsumer( getLogger() );
  
          JazzScmCommand updateCmd = createAcceptCommand( repo, fileSet );
          int status = updateCmd.execute( updateConsumer, err );
  
          if ( status != 0 || err.hasBeenFed() )
          {
              return new UpdateScmResult( updateCmd.getCommandString(),
                                          "Error code for Jazz SCM update command - " + status, err.getOutput(), false );
          }
  
          if ( getLogger().isDebugEnabled() )
          {
              if ( !updateConsumer.getUpdatedFiles().isEmpty() )
              {
                  getLogger().debug( "Iterating over \"Update\" results" );
                  for ( ScmFile file : updateConsumer.getUpdatedFiles() )
                  {
                      getLogger().debug( file.getPath() + " : " + file.getStatus() );
                  }
              }
              else
              {
                  getLogger().debug( "There are no updated files" );
              }
          }
  
          // Now, just (re)load the workspace into the sand box.
         // We can use the checkout directory for this.
         return new UpdateScmResult( updateCmd.getCommandString(), updateConsumer.getUpdatedFiles() );
     }
 
     public JazzScmCommand createAcceptCommand( ScmProviderRepository repo, ScmFileSet fileSet )
     {
         JazzScmCommand command = new JazzScmCommand( JazzConstants.CMD_ACCEPT, repo, fileSet, getLogger() );
 
         command.addArgument( JazzConstants.ARG_FLOW_COMPONENTS );
 
         return command;
     }
 
     /**
      * {@inheritDoc}
      */
     protected ChangeLogCommand getChangeLogCommand()
     {
         JazzChangeLogCommand command = new JazzChangeLogCommand();
 
         command.setLogger( getLogger() );
 
         return command;
     }
 
 }