package org.apache.maven.lifecycle.internal;
   
   /*
    * 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.HashSet;
  import java.util.List;
  
  import org.apache.maven.artifact.Artifact;
  import org.apache.maven.execution.BuildSuccess;
  import org.apache.maven.execution.ExecutionEvent;
  import org.apache.maven.execution.MavenSession;
  import org.apache.maven.execution.ProjectExecutionEvent;
  import org.apache.maven.execution.ProjectExecutionListener;
  import org.apache.maven.lifecycle.MavenExecutionPlan;
  import org.apache.maven.lifecycle.internal.builder.BuilderCommon;
  import org.apache.maven.plugin.MojoExecution;
  import org.apache.maven.project.MavenProject;
  import org.apache.maven.session.scope.internal.SessionScope;
  import org.codehaus.plexus.component.annotations.Component;
  import org.codehaus.plexus.component.annotations.Requirement;
  
  /**
   * <p>
   * Builds one or more lifecycles for a full module
   * </p>
   * <strong>NOTE:</strong> This class is not part of any public api and can be changed or deleted without prior notice.
   * 
   * @since 3.0
   * @author Benjamin Bentmann
   * @author Jason van Zyl
   * @author Kristian Rosenvold (extracted class)
   */
  @Component( role = LifecycleModuleBuilder.class )
  public class LifecycleModuleBuilder
  {
  
      @Requirement
      private MojoExecutor mojoExecutor;
  
      @Requirement
      private BuilderCommon builderCommon;
  
      @Requirement
      private ExecutionEventCatapult eventCatapult;
  
      private ProjectExecutionListener projectExecutionListener;
  
      // this tricks plexus-component-metadata generate required metadata
      @Requirement
      private List<ProjectExecutionListener> projectExecutionListeners;
  
      @Requirement
      private SessionScope sessionScope;
  
      public void setProjectExecutionListeners( final List<ProjectExecutionListener> listeners )
      {
          this.projectExecutionListeners = listeners;
          this.projectExecutionListener = new CompoundProjectExecutionListener( listeners );
      }
  
      public void buildProject( MavenSession session, ReactorContext reactorContext, MavenProject currentProject,
                                TaskSegment taskSegment )
      {
          buildProject( session, session, reactorContext, currentProject, taskSegment );
      }
  
      public void buildProject( MavenSession session, MavenSession rootSession, ReactorContext reactorContext,
                                MavenProject currentProject, TaskSegment taskSegment )
      {
          session.setCurrentProject( currentProject );
  
          long buildStartTime = System.currentTimeMillis();
  
          // session may be different from rootSession seeded in DefaultMaven
          // explicitly seed the right session here to make sure it is used by Guice
          final boolean scoped = session != rootSession;
          if ( scoped )
          {
              sessionScope.enter();
              sessionScope.seed( MavenSession.class, session );
          }
          try
         {
 
             if ( reactorContext.getReactorBuildStatus().isHaltedOrBlacklisted( currentProject ) )
             {
                 eventCatapult.fire( ExecutionEvent.Type.ProjectSkipped, session, null );
                 return;
             }
 
             BuilderCommon.attachToThread( currentProject );
 
             projectExecutionListener.beforeProjectExecution( new ProjectExecutionEvent( session, currentProject ) );
 
             eventCatapult.fire( ExecutionEvent.Type.ProjectStarted, session, null );
 
             MavenExecutionPlan executionPlan =
                 builderCommon.resolveBuildPlan( session, currentProject, taskSegment, new HashSet<Artifact>() );
             List<MojoExecution> mojoExecutions = executionPlan.getMojoExecutions();
 
             projectExecutionListener.beforeProjectLifecycleExecution( new ProjectExecutionEvent( session,
                                                                                                  currentProject,
                                                                                                  mojoExecutions ) );
             mojoExecutor.execute( session, mojoExecutions, reactorContext.getProjectIndex() );
 
             long buildEndTime = System.currentTimeMillis();
 
             projectExecutionListener.afterProjectExecutionSuccess( new ProjectExecutionEvent( session, currentProject,
                                                                                               mojoExecutions ) );
 
             reactorContext.getResult().addBuildSummary( new BuildSuccess( currentProject,
                                                                           buildEndTime - buildStartTime ) );
 
             eventCatapult.fire( ExecutionEvent.Type.ProjectSucceeded, session, null );
         }
         catch ( Throwable t )
         {
             builderCommon.handleBuildError( reactorContext, rootSession, session, currentProject, t, buildStartTime );
 
             projectExecutionListener.afterProjectExecutionFailure( new ProjectExecutionEvent( session, currentProject,
                                                                                               t ) );
 
             // rethrow original errors and runtime exceptions
             if ( t instanceof RuntimeException )
             {
                 throw (RuntimeException) t;
             }
             if ( t instanceof Error )
             {
                 throw (Error) t;
             }
         }
         finally
         {
             if ( scoped )
             {
                 sessionScope.exit();
             }
 
             session.setCurrentProject( null );
 
             Thread.currentThread().setContextClassLoader( reactorContext.getOriginalContextClassLoader() );
         }
     }
 }