package org.apache.maven.shared.release.phase;

 /*

  * 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.IOException;

 import java.util.List;

 import org.apache.maven.project.MavenProject;

 import org.apache.maven.shared.release.ReleaseExecutionException;

 import org.apache.maven.shared.release.ReleaseFailureException;

 import org.apache.maven.shared.release.ReleaseResult;

 import org.apache.maven.shared.release.config.ReleaseDescriptor;

 import org.apache.maven.shared.release.env.ReleaseEnvironment;

 import org.apache.maven.shared.release.util.ReleaseUtil;

 import org.codehaus.plexus.util.FileUtils;

 /**

  * @author Edwin Punzalan

  * @plexus.component role="org.apache.maven.shared.release.phase.ReleasePhase" role-hint="create-backup-poms"

  */

 public class CreateBackupPomsPhase

     extends AbstractBackupPomsPhase

 {

     public ReleaseResult execute( ReleaseDescriptor releaseDescriptor, ReleaseEnvironment releaseEnvironment,

                                   List<MavenProject> reactorProjects )

         throws ReleaseExecutionException, ReleaseFailureException

     {

         ReleaseResult result = new ReleaseResult();

         // remove previous backups, if any

         clean( reactorProjects );

         for ( MavenProject project : reactorProjects )

         {

             createPomBackup( project );

         }

         result.setResultCode( ReleaseResult.SUCCESS );

         return result;

     }

     public ReleaseResult clean( List<MavenProject> reactorProjects )

     {

         ReleaseResult result = new ReleaseResult();

         for ( MavenProject project : reactorProjects )

         {

             deletePomBackup( project );

         }

         result.setResultCode( ReleaseResult.SUCCESS );

         return result;

     }

     public ReleaseResult simulate( ReleaseDescriptor releaseDescriptor, ReleaseEnvironment releaseEnvironment,

                                    List<MavenProject> reactorProjects )

         throws ReleaseExecutionException, ReleaseFailureException

     {

         return execute( releaseDescriptor, releaseEnvironment, reactorProjects );

     }

     private void createPomBackup( MavenProject project )

         throws ReleaseExecutionException

     {

         // delete any existing backup first

         deletePomBackup( project );

         try

         {

             FileUtils.copyFile( ReleaseUtil.getStandardPom( project ), getPomBackup( project ) );

         }

         catch ( IOException e )

         {

             throw new ReleaseExecutionException( "Error creating backup POM: " + e.getMessage(), e );

         }

     }

 }