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 org.apache.maven.execution.MavenSession;
  import org.apache.maven.execution.ProjectDependencyGraph;
  import org.apache.maven.lifecycle.MavenExecutionPlan;
  import org.apache.maven.lifecycle.internal.builder.BuilderCommon;
  import org.apache.maven.plugin.MojoExecution;
  import org.apache.maven.plugin.descriptor.MojoDescriptor;
  import org.apache.maven.project.MavenProject;
  import org.codehaus.plexus.component.annotations.Component;
  import org.codehaus.plexus.component.annotations.Requirement;
  import org.codehaus.plexus.logging.Logger;
  import org.codehaus.plexus.util.StringUtils;
  
  import java.util.Iterator;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  import java.util.TreeSet;
  
  /**
   * Logs debug output from the various lifecycle phases.
   * 
   * @since 3.0
   * @author Benjamin Bentmann
   * @author Jason van Zyl
   * @author Kristian Rosenvold (extracted class only)
   *         <p/>
   *         NOTE: This class is not part of any public api and can be changed or deleted without prior notice.
   */
  @Component( role = LifecycleDebugLogger.class )
  public class LifecycleDebugLogger
  {
      @Requirement
      private Logger logger;
  
  
      public LifecycleDebugLogger()
      {
      }
  
      public LifecycleDebugLogger( Logger logger )
      {
          this.logger = logger;
      }
  
  
      public void debug( String s )
      {
          logger.debug( s );
      }
  
      public void info( String s )
      {
          logger.info( s );
      }
  
      public void debugReactorPlan( ProjectBuildList projectBuilds )
      {
          if ( !logger.isDebugEnabled() )
          {
              return;
          }
  
          logger.debug( "=== REACTOR BUILD PLAN ================================================" );
  
          for ( Iterator<ProjectSegment> it = projectBuilds.iterator(); it.hasNext(); )
          {
              ProjectSegment projectBuild = it.next();
  
              logger.debug( "Project: " + projectBuild.getProject().getId() );
              logger.debug( "Tasks:   " + projectBuild.getTaskSegment().getTasks() );
              logger.debug( "Style:   " + ( projectBuild.getTaskSegment().isAggregating() ? "Aggregating" : "Regular" ) );
  
              if ( it.hasNext() )
              {
                  logger.debug( "-----------------------------------------------------------------------" );
              }
          }
  
         logger.debug( "=======================================================================" );
     }
 
 
     public void debugProjectPlan( MavenProject currentProject, MavenExecutionPlan executionPlan )
     {
         if ( !logger.isDebugEnabled() )
         {
             return;
         }
 
         logger.debug( "=== PROJECT BUILD PLAN ================================================" );
         logger.debug( "Project:       " + BuilderCommon.getKey( currentProject ) );
 
         debugDependencyRequirements( executionPlan.getMojoExecutions() );
 
         logger.debug( "Repositories (dependencies): " + currentProject.getRemoteProjectRepositories() );
         logger.debug( "Repositories (plugins)     : " + currentProject.getRemotePluginRepositories() );
 
         for ( ExecutionPlanItem mojoExecution : executionPlan )
         {
             debugMojoExecution( mojoExecution.getMojoExecution() );
         }
 
         logger.debug( "=======================================================================" );
     }
 
     private void debugMojoExecution( MojoExecution mojoExecution )
     {
         String mojoExecId =
             mojoExecution.getGroupId() + ':' + mojoExecution.getArtifactId() + ':' + mojoExecution.getVersion() + ':'
                 + mojoExecution.getGoal() + " (" + mojoExecution.getExecutionId() + ')';
 
         Map<String, List<MojoExecution>> forkedExecutions = mojoExecution.getForkedExecutions();
         if ( !forkedExecutions.isEmpty() )
         {
             for ( Map.Entry<String, List<MojoExecution>> fork : forkedExecutions.entrySet() )
             {
                 logger.debug( "--- init fork of " + fork.getKey() + " for " + mojoExecId + " ---" );
 
                 debugDependencyRequirements( fork.getValue() );
 
                 for ( MojoExecution forkedExecution : fork.getValue() )
                 {
                     debugMojoExecution( forkedExecution );
                 }
 
                 logger.debug( "--- exit fork of " + fork.getKey() + " for " + mojoExecId + " ---" );
             }
         }
 
         logger.debug( "-----------------------------------------------------------------------" );
         logger.debug( "Goal:          " + mojoExecId );
         logger.debug(
             "Style:         " + ( mojoExecution.getMojoDescriptor().isAggregator() ? "Aggregating" : "Regular" ) );
         logger.debug( "Configuration: " + mojoExecution.getConfiguration() );
     }
 
     private void debugDependencyRequirements( List<MojoExecution> mojoExecutions )
     {
         Set<String> scopesToCollect = new TreeSet<String>();
         Set<String> scopesToResolve = new TreeSet<String>();
 
         for ( MojoExecution mojoExecution : mojoExecutions )
         {
             MojoDescriptor mojoDescriptor = mojoExecution.getMojoDescriptor();
 
             String scopeToCollect = mojoDescriptor.getDependencyCollectionRequired();
             if ( StringUtils.isNotEmpty( scopeToCollect ) )
             {
                 scopesToCollect.add( scopeToCollect );
             }
 
             String scopeToResolve = mojoDescriptor.getDependencyResolutionRequired();
             if ( StringUtils.isNotEmpty( scopeToResolve ) )
             {
                 scopesToResolve.add( scopeToResolve );
             }
         }
 
         logger.debug( "Dependencies (collect): " + scopesToCollect );
         logger.debug( "Dependencies (resolve): " + scopesToResolve );
     }
 
 }