package org.apache.maven.plugins.release;

 /*

  * 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.util.HashMap;

 import java.util.Map;

 import org.apache.maven.artifact.ArtifactUtils;

 import org.apache.maven.execution.MavenSession;

 import org.apache.maven.plugin.MojoExecutionException;

 import org.apache.maven.plugin.MojoFailureException;

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

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

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

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

 /**

  * Update the POM versions for a project.

  * For more info see <a href="/plugins/maven-release-plugin/examples/update-versions.html">this example</a>.

  *

  * @author Paul Gier

  * @version $Id$

  * @aggregator

  * @goal update-versions

  * @since 2.0

  */

 public class UpdateVersionsMojo

     extends AbstractReleaseMojo

 {

     /**

      * Whether to automatically assign submodules the parent version. If set to false, the user will be prompted for the

      * version of each submodules.

      *

      * @parameter expression="${autoVersionSubmodules}" default-value="false"

      * @since 2.0

      */

     private boolean autoVersionSubmodules;

     /**

      * Whether to add a schema to the POM if it was previously missing on release.

      *

      * @parameter expression="${addSchema}" default-value="true"

      * @since 2.0

      */

     private boolean addSchema;

     /**

      * Default version to use for new local working copy.

      *

      * @parameter expression="${developmentVersion}"

      * @since 2.0

      */

     private String developmentVersion;

     /**

      * @parameter expression="${session}"

      * @readonly

      * @required

      * @since 2.0

      */

     protected MavenSession session;

     /**

      * {@inheritDoc}

      */

     public void execute()

         throws MojoExecutionException, MojoFailureException

     {

         super.execute();

         ReleaseDescriptor config = createReleaseDescriptor();

         config.setAddSchema( addSchema );

         config.setAutoVersionSubmodules( autoVersionSubmodules );

         config.setDefaultDevelopmentVersion( developmentVersion );

         Map originalScmInfo = new HashMap();

         originalScmInfo.put( ArtifactUtils.versionlessKey( project.getGroupId(), project.getArtifactId() ), project.getScm() );

         config.setOriginalScmInfo( originalScmInfo );

         // Create a config containing values from the session properties (ie command line properties with cli).

         ReleaseDescriptor sysPropertiesConfig

                 = ReleaseUtils.copyPropertiesToReleaseDescriptor( session.getExecutionProperties() );

         mergeCommandLineConfig( config, sysPropertiesConfig );

         try

         {

             releaseManager.updateVersions( config, getReleaseEnvironment(), reactorProjects );

         }

         catch ( ReleaseExecutionException e )

         {

             throw new MojoExecutionException( e.getMessage(), e );

         }

         catch ( ReleaseFailureException e )

         {

             throw new MojoFailureException( e.getMessage(), e );

         }

     }

     /**

      * This method takes some of the release configuration picked up from the command line system properties and copies

      * it into the release config object.

      *

      * @param config The release configuration to merge the system properties into, must not be <code>null</code>.

      * @param sysPropertiesConfig The configuration from the system properties to merge in, must not be

      *            <code>null</code>.

      */

     private void mergeCommandLineConfig( ReleaseDescriptor config, ReleaseDescriptor sysPropertiesConfig )

     {

         // If the user specifies versions, these should override the existing versions

         if ( sysPropertiesConfig.getReleaseVersions() != null )

         {

             config.getReleaseVersions().putAll( sysPropertiesConfig.getReleaseVersions() );

         }

         if ( sysPropertiesConfig.getDevelopmentVersions() != null )

         {

             config.getDevelopmentVersions().putAll( sysPropertiesConfig.getDevelopmentVersions() );

         }

     }

 }