package org.apache.maven.scm.provider.cvslib.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 java.io.File;
  import java.util.Iterator;
  import java.util.List;
  
  import org.apache.maven.scm.ScmException;
  import org.apache.maven.scm.ScmFileSet;
  import org.apache.maven.scm.ScmVersion;
  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.cvslib.command.CvsCommand;
  import org.apache.maven.scm.provider.cvslib.command.CvsCommandUtils;
  import org.apache.maven.scm.provider.cvslib.repository.CvsScmProviderRepository;
  import org.codehaus.plexus.util.StringUtils;
  import org.codehaus.plexus.util.cli.Commandline;
  
  /**
   * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse </a>
   * @author <a href="mailto:trygvis@inamo.no">Trygve Laugst&oslash;l</a>
   * @author Olivier Lamy
   *
   */
  public abstract class AbstractCvsUpdateCommand
      extends AbstractUpdateCommand
      implements CvsCommand
  {
      /** {@inheritDoc} */
      public UpdateScmResult executeUpdateCommand( ScmProviderRepository repo, ScmFileSet fileSet, ScmVersion version )
          throws ScmException
      {
          CvsScmProviderRepository repository = (CvsScmProviderRepository) repo;
  
          Commandline cl = CvsCommandUtils.getBaseCommand( "update", repository, fileSet, false );
  
          cl.createArg().setValue( "-d" );
  
          if ( version != null && StringUtils.isNotEmpty( version.getName() ) )
          {
              cl.createArg().setValue( "-r" + version.getName() );
          }
          
          List<File> files = fileSet.getFileList();
          if ( !files.isEmpty() )
          {
              Iterator<File> fileIterator = files.iterator();
              while ( fileIterator.hasNext() )
              {
                  cl.createArg().setValue( ( (File) fileIterator.next() ).getPath() );
              }
          }
  
          if ( getLogger().isInfoEnabled() )
          {
              getLogger().info( "Executing: " + cl );
              getLogger().info( "Working directory: " + cl.getWorkingDirectory().getAbsolutePath() );
          }
  
          return executeCvsCommand( cl );
      }
  
      protected abstract UpdateScmResult executeCvsCommand( Commandline cl )
          throws ScmException;
  }