package org.apache.maven.continuum.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.File;
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.maven.artifact.repository.ArtifactRepository;
  import org.apache.maven.artifact.repository.DefaultArtifactRepository;
  import org.apache.maven.artifact.repository.layout.DefaultRepositoryLayout;
  import org.apache.maven.continuum.release.ContinuumReleaseException;
  import org.apache.maven.profiles.DefaultProfileManager;
  import org.apache.maven.profiles.ProfileManager;
  import org.apache.maven.project.DuplicateProjectException;
  import org.apache.maven.project.MavenProject;
  import org.apache.maven.project.MavenProjectBuilder;
  import org.apache.maven.project.ProjectBuildingException;
  import org.apache.maven.project.ProjectSorter;
  import org.apache.maven.settings.MavenSettingsBuilder;
  import org.apache.maven.settings.Settings;
  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.phase.AbstractReleasePhase;
  import org.codehaus.plexus.PlexusConstants;
  import org.codehaus.plexus.PlexusContainer;
  import org.codehaus.plexus.context.Context;
  import org.codehaus.plexus.context.ContextException;
  import org.codehaus.plexus.personality.plexus.lifecycle.phase.Contextualizable;
  import org.codehaus.plexus.util.dag.CycleDetectedException;
  import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
  
  /**
   * Generate the reactor projects
   *
   * @author Edwin Punzalan
   * @version $Id: GenerateReactorProjectsPhase.java 917967 2010-03-02 11:19:19Z oching $
   */
  public class GenerateReactorProjectsPhase
      extends AbstractReleasePhase
      implements Contextualizable
  {
      private MavenProjectBuilder projectBuilder;
  
      private MavenSettingsBuilder settingsBuilder;
  
      private PlexusContainer container;
  
      public ReleaseResult execute( ReleaseDescriptor releaseDescriptor, Settings settings, List reactorProjects )
          throws ReleaseExecutionException, ReleaseFailureException
      {
          ReleaseResult result = new ReleaseResult();
  
          try
          {
              reactorProjects.addAll( getReactorProjects( releaseDescriptor ) );
          }
          catch ( ContinuumReleaseException e )
          {
              throw new ReleaseExecutionException( "Unable to get reactor projects: " + e.getMessage(), e );
          }
  
          result.setResultCode( ReleaseResult.SUCCESS );
  
          return result;
      }
  
      public ReleaseResult simulate( ReleaseDescriptor releaseDescriptor, Settings settings, List reactorProjects )
          throws ReleaseExecutionException, ReleaseFailureException
      {
          return execute( releaseDescriptor, settings, reactorProjects );
      }
  
      private List getReactorProjects( ReleaseDescriptor descriptor )
          throws ContinuumReleaseException
      {
          List<MavenProject> reactorProjects = new ArrayList<MavenProject>();
  
          MavenProject project;
         try
         {
             ArtifactRepository repository = getLocalRepository( descriptor.getAdditionalArguments() );
 
             project = projectBuilder.build( getProjectDescriptorFile( descriptor ), repository,
                                                             getProfileManager( getSettings() ) );
 
             reactorProjects.add( project );
 
             addModules( reactorProjects, project, repository );
         }
         catch ( ProjectBuildingException e )
         {
             throw new ContinuumReleaseException( "Failed to build project.", e );
         }
 
         try
         {
             reactorProjects = new ProjectSorter( reactorProjects ).getSortedProjects();
         }
         catch ( CycleDetectedException e )
         {
             throw new ContinuumReleaseException( "Failed to sort projects.", e );
         }
         catch ( DuplicateProjectException e )
         {
             throw new ContinuumReleaseException( "Failed to sort projects.", e );
         }
 
         return reactorProjects;
     }
 
     private void addModules( List<MavenProject> reactorProjects, MavenProject project, ArtifactRepository repository )
         throws ContinuumReleaseException
     {
         for ( Object o : project.getModules() )
         {
             String moduleDir = o.toString();
 
             File pomFile = new File( project.getBasedir(), moduleDir + "/pom.xml" );
 
             try
             {
                 MavenProject reactorProject =
                     projectBuilder.build( pomFile, repository, getProfileManager( getSettings() ) );
 
                 reactorProjects.add( reactorProject );
 
                 addModules( reactorProjects, reactorProject, repository );
             }
             catch ( ProjectBuildingException e )
             {
                 throw new ContinuumReleaseException( "Failed to build project.", e );
             }
         }
     }
 
     private File getProjectDescriptorFile( ReleaseDescriptor descriptor )
     {
         String parentPath = descriptor.getWorkingDirectory();
 
         String pomFilename = descriptor.getPomFileName();
         if ( pomFilename == null )
         {
             pomFilename = "pom.xml";
         }
 
         return new File( parentPath, pomFilename );
     }
 
     private ArtifactRepository getLocalRepository( String arguments )
         throws ContinuumReleaseException
     {
         String localRepository = null;
         boolean found = false;
 
         if ( arguments != null )
         {
             String[] args = arguments.split( " " );
     
             for ( String arg : args )
             {
                 if ( arg.contains( "-Dmaven.repo.local=" ) )
                 {
                     localRepository = arg.substring( arg.indexOf( "=" ) + 1 );
 
                     if ( localRepository.endsWith( "\"" ) )
                     {
                         localRepository = localRepository.substring( 0, localRepository.indexOf( "\"" ) );
                         break;
                     }
 
                     found = true;
                     continue;
                 }
 
                 if ( found )
                 {
                     localRepository += " " + arg;
                     
                     if ( localRepository.endsWith( "\"" ) )
                     {
                         localRepository = localRepository.substring( 0, localRepository.indexOf( "\"" ) );
                         break;
                     }
                 }
             }
         }
     
         if ( localRepository == null )
         {
             localRepository = getSettings().getLocalRepository();
         }
 
         return new DefaultArtifactRepository( "local-repository", "file://" + localRepository,
                                               new DefaultRepositoryLayout() );
     }
 
     private ProfileManager getProfileManager( Settings settings )
     {
         return new DefaultProfileManager( container, settings );
     }
 
     private Settings getSettings()
         throws ContinuumReleaseException
     {
         try
         {
             return settingsBuilder.buildSettings();
         }
         catch ( IOException e )
         {
             throw new ContinuumReleaseException( "Failed to get Maven Settings.", e );
         }
         catch ( XmlPullParserException e )
         {
             throw new ContinuumReleaseException( "Failed to get Maven Settings.", e );
         }
     }
 
     public void contextualize( Context context )
         throws ContextException
     {
         container = (PlexusContainer) context.get( PlexusConstants.PLEXUS_KEY );
     }
 }