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.LinkedHashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.NoSuchElementException;
  import java.util.Set;
  
  import org.apache.maven.api.xml.Dom;
  import org.apache.maven.lifecycle.DefaultLifecycles;
  import org.apache.maven.lifecycle.LifeCyclePluginAnalyzer;
  import org.apache.maven.lifecycle.Lifecycle;
  import org.apache.maven.lifecycle.mapping.LifecycleMapping;
  import org.apache.maven.lifecycle.mapping.LifecycleMojo;
  import org.apache.maven.lifecycle.mapping.LifecyclePhase;
  import org.apache.maven.model.InputLocation;
  import org.apache.maven.model.InputSource;
  import org.apache.maven.model.Plugin;
  import org.apache.maven.model.PluginExecution;
  import org.codehaus.plexus.PlexusContainer;
  import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
  import org.codehaus.plexus.util.StringUtils;
  import org.codehaus.plexus.util.xml.Xpp3Dom;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import javax.inject.Inject;
  import javax.inject.Named;
  import javax.inject.Singleton;
  
  import static java.util.Objects.requireNonNull;
  
  /**
   * <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 jdcasey
   * @author Kristian Rosenvold (extracted class only)
   */
  @Singleton
  @Named
  public class DefaultLifecyclePluginAnalyzer
      implements LifeCyclePluginAnalyzer
  {
      public static final String DEFAULTLIFECYCLEBINDINGS_MODELID = "org.apache.maven:maven-core:"
          + DefaultLifecyclePluginAnalyzer.class.getPackage().getImplementationVersion() + ":default-lifecycle-bindings";
  
      private final Logger logger = LoggerFactory.getLogger( getClass() );
  
      private final PlexusContainer plexusContainer;
  
      private final DefaultLifecycles defaultLifeCycles;
  
      @Inject
      public DefaultLifecyclePluginAnalyzer( final PlexusContainer plexusContainer,
                                             final DefaultLifecycles defaultLifeCycles )
      {
          this.plexusContainer = requireNonNull( plexusContainer );
          this.defaultLifeCycles = requireNonNull( defaultLifeCycles );
      }
  
      // These methods deal with construction intact Plugin object that look like they come from a standard
      // <plugin/> block in a Maven POM. We have to do some wiggling to pull the sources of information
      // together and this really shows the problem of constructing a sensible default configuration but
      // it's all encapsulated here so it appears normalized to the POM builder.
  
      // We are going to take the project packaging and find all plugins in the default lifecycle and create
      // fully populated Plugin objects, including executions with goals and default configuration taken
      // from the plugin.xml inside a plugin.
      //
  
      @Override
      public Set<Plugin> getPluginsBoundByDefaultToAllLifecycles( String packaging )
      {
          if ( logger.isDebugEnabled() )
          {
              logger.debug( "Looking up lifecycle mappings for packaging " + packaging + " from "
                 + Thread.currentThread().getContextClassLoader() );
         }
 
         LifecycleMapping lifecycleMappingForPackaging = lookupLifecycleMapping( packaging );
 
         if ( lifecycleMappingForPackaging == null )
         {
             return null;
         }
 
         Map<Plugin, Plugin> plugins = new LinkedHashMap<>();
 
         for ( Lifecycle lifecycle : defaultLifeCycles.getLifeCycles() )
         {
             org.apache.maven.lifecycle.mapping.Lifecycle lifecycleConfiguration =
                 lifecycleMappingForPackaging.getLifecycles().get( lifecycle.getId() );
 
             Map<String, LifecyclePhase> phaseToGoalMapping = null;
 
             if ( lifecycleConfiguration != null )
             {
                 phaseToGoalMapping = lifecycleConfiguration.getLifecyclePhases();
             }
             else if ( lifecycle.getDefaultLifecyclePhases() != null )
             {
                 phaseToGoalMapping = lifecycle.getDefaultLifecyclePhases();
             }
 
             if ( phaseToGoalMapping != null )
             {
                 for ( Map.Entry<String, LifecyclePhase> goalsForLifecyclePhase : phaseToGoalMapping.entrySet() )
                 {
                     String phase = goalsForLifecyclePhase.getKey();
                     LifecyclePhase goals = goalsForLifecyclePhase.getValue();
                     if ( goals != null )
                     {
                         parseLifecyclePhaseDefinitions( plugins, phase, goals );
                     }
                 }
             }
         }
 
         return plugins.keySet();
     }
 
     /**
      * Performs a lookup using Plexus API to make sure we can look up only "visible" (see Maven classloading) components
      * from current module and for example not extensions coming from other modules.
      */
     private LifecycleMapping lookupLifecycleMapping( final String packaging )
     {
         try
         {
             return plexusContainer.lookup( LifecycleMapping.class, packaging );
         }
         catch ( ComponentLookupException e )
         {
             if ( e.getCause() instanceof NoSuchElementException )
             {
                 return null;
             }
             throw new RuntimeException( e );
         }
     }
 
     private void parseLifecyclePhaseDefinitions( Map<Plugin, Plugin> plugins, String phase, LifecyclePhase goals )
     {
         InputSource inputSource = new InputSource();
         inputSource.setModelId( DEFAULTLIFECYCLEBINDINGS_MODELID );
         InputLocation location = new InputLocation( -1, -1, inputSource );
         location.setLocation( 0, location );
 
         List<LifecycleMojo> mojos = goals.getMojos();
         if ( mojos != null )
         {
 
             for ( int i = 0; i < mojos.size(); i++ )
             {
                 LifecycleMojo mojo = mojos.get( i );
 
                 GoalSpec gs = parseGoalSpec( mojo.getGoal() );
 
                 if ( gs == null )
                 {
                     logger.warn( "Ignored invalid goal specification '" + mojo.getGoal()
                             + "' from lifecycle mapping for phase " + phase );
                     continue;
                 }
 
                 Plugin plugin = new Plugin();
                 plugin.setGroupId( gs.groupId );
                 plugin.setArtifactId( gs.artifactId );
                 plugin.setVersion( gs.version );
 
                 plugin.setLocation( "", location );
                 plugin.setLocation( "groupId", location );
                 plugin.setLocation( "artifactId", location );
                 plugin.setLocation( "version", location );
 
                 Plugin existing = plugins.get( plugin );
                 if ( existing != null )
                 {
                     if ( existing.getVersion() == null )
                     {
                         existing.setVersion( plugin.getVersion() );
                         existing.setLocation( "version", location );
                     }
                     plugin = existing;
                 }
                 else
                 {
                     plugins.put( plugin, plugin );
                 }
 
                 PluginExecution execution = new PluginExecution();
                 execution.setId( getExecutionId( plugin, gs.goal ) );
                 execution.setPhase( phase );
                 execution.setPriority( i - mojos.size() );
                 execution.getGoals().add( gs.goal );
 
                 execution.setLocation( "", location );
                 execution.setLocation( "id", location );
                 execution.setLocation( "phase", location );
                 execution.setLocation( "goals", location );
 
                 Dom lifecycleConfiguration = mojo.getConfiguration();
                 if ( lifecycleConfiguration != null )
                 {
                     execution.setConfiguration( new Xpp3Dom( lifecycleConfiguration ) );
                 }
 
                 if ( mojo.getDependencies() != null )
                 {
                     plugin.setDependencies( mojo.getDependencies() );
                 }
                 plugin.getExecutions().add( execution );
             }
         }
     }
 
     private GoalSpec parseGoalSpec( String goalSpec )
     {
         GoalSpec gs = new GoalSpec();
 
         String[] p = StringUtils.split( goalSpec.trim(), ":" );
 
         if ( p.length == 3 )
         {
             // <groupId>:<artifactId>:<goal>
             gs.groupId = p[0];
             gs.artifactId = p[1];
             gs.goal = p[2];
         }
         else if ( p.length == 4 )
         {
             // <groupId>:<artifactId>:<version>:<goal>
             gs.groupId = p[0];
             gs.artifactId = p[1];
             gs.version = p[2];
             gs.goal = p[3];
         }
         else
         {
             // invalid
             gs = null;
         }
 
         return gs;
     }
 
     private String getExecutionId( Plugin plugin, String goal )
     {
         Set<String> existingIds = new HashSet<>();
         for ( PluginExecution execution : plugin.getExecutions() )
         {
             existingIds.add( execution.getId() );
         }
 
         String base = "default-" + goal;
         String id = base;
 
         for ( int index = 1; existingIds.contains( id ); index++ )
         {
             id = base + '-' + index;
         }
 
         return id;
     }
 
     static class GoalSpec
     {
 
         String groupId;
 
         String artifactId;
 
         String version;
 
         String goal;
 
     }
 
 }