package org.apache.maven.scm.command.branch;

 /*

  * 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.CommandParameter;

 import org.apache.maven.scm.CommandParameters;

 import org.apache.maven.scm.ScmBranchParameters;

 import org.apache.maven.scm.ScmException;

 import org.apache.maven.scm.ScmFileSet;

 import org.apache.maven.scm.ScmResult;

 import org.apache.maven.scm.command.AbstractCommand;

 import org.apache.maven.scm.provider.ScmProviderRepository;

 import org.codehaus.plexus.util.StringUtils;

 /**

  * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>

  * @author <a href="mailto:trygvis@inamo.no">Trygve Laugst&oslash;l</a>

  * @version $Id: AbstractBranchCommand.java 892494 2009-12-19 18:40:43Z olamy $

  */

 public abstract class AbstractBranchCommand

     extends AbstractCommand

 {

     protected abstract ScmResult executeBranchCommand( ScmProviderRepository repository, ScmFileSet fileSet,

                                                        String branchName, String message )

         throws ScmException;

     /**

      * default impl to provide backward comp

      * @since 1.3

      * @param repository

      * @param fileSet

      * @param branchName

      * @param scmBranchParameters

      * @return

      * @throws ScmException

      */

     protected ScmResult executeBranchCommand( ScmProviderRepository repository, ScmFileSet fileSet, String branchName,

                                               ScmBranchParameters scmBranchParameters )

         throws ScmException

     {

         return executeBranchCommand( repository, fileSet, branchName, scmBranchParameters.getMessage() );

     }

     /** {@inheritDoc} */

     public ScmResult executeCommand( ScmProviderRepository repository, ScmFileSet fileSet,

                                      CommandParameters parameters )

         throws ScmException

     {

         String branchName = parameters.getString( CommandParameter.BRANCH_NAME );

         ScmBranchParameters scmBranchParameters = parameters.getScmBranchParameters( CommandParameter.SCM_BRANCH_PARAMETERS );

         String message = parameters.getString( CommandParameter.MESSAGE, "[maven-scm] copy for branch " + branchName );

         if (StringUtils.isBlank( scmBranchParameters.getMessage()) && StringUtils.isNotBlank( message ) ) 

         {

             scmBranchParameters.setMessage( message );

         }

         return executeBranchCommand( repository, fileSet, branchName, scmBranchParameters );

     }

 }