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.model.Plugin;
  import org.apache.maven.plugin.BuildPluginManager;
  import org.apache.maven.plugin.InvalidPluginDescriptorException;
  import org.apache.maven.plugin.MojoNotFoundException;
  import org.apache.maven.plugin.PluginDescriptorParsingException;
  import org.apache.maven.plugin.PluginNotFoundException;
  import org.apache.maven.plugin.PluginResolutionException;
  import org.apache.maven.plugin.descriptor.MojoDescriptor;
  import org.apache.maven.plugin.prefix.DefaultPluginPrefixRequest;
  import org.apache.maven.plugin.prefix.NoPluginFoundForPrefixException;
  import org.apache.maven.plugin.prefix.PluginPrefixRequest;
  import org.apache.maven.plugin.prefix.PluginPrefixResolver;
  import org.apache.maven.plugin.prefix.PluginPrefixResult;
  import org.apache.maven.plugin.version.DefaultPluginVersionRequest;
  import org.apache.maven.plugin.version.PluginVersionRequest;
  import org.apache.maven.plugin.version.PluginVersionResolutionException;
  import org.apache.maven.plugin.version.PluginVersionResolver;
  import org.apache.maven.project.MavenProject;
  import org.codehaus.plexus.component.annotations.Component;
  import org.codehaus.plexus.component.annotations.Requirement;
  import org.codehaus.plexus.configuration.PlexusConfiguration;
  import org.codehaus.plexus.logging.Logger;
  import org.codehaus.plexus.util.xml.Xpp3Dom;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.StringTokenizer;
  
  /**
   * Resolves dependencies for the artifacts in context of the lifecycle build
   *
   * @since 3.0
   * @author Benjamin Bentmann
   * @author Jason van Zyl
   * @author jdcasey
   * @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 = MojoDescriptorCreator.class )
  public class MojoDescriptorCreator
  {
  
      @Requirement
      private Logger logger;
  
      @Requirement
      private PluginVersionResolver pluginVersionResolver;
  
      @Requirement
      private BuildPluginManager pluginManager;
  
      @Requirement
      private PluginPrefixResolver pluginPrefixResolver;
  
      @Requirement
      private LifecyclePluginResolver lifecyclePluginResolver;
  
      public MojoDescriptorCreator()
      {
      }
  
      public MojoDescriptorCreator( PluginVersionResolver pluginVersionResolver, BuildPluginManager pluginManager,
                                    PluginPrefixResolver pluginPrefixResolver,
                                    LifecyclePluginResolver lifecyclePluginResolver )
      {
          this.pluginVersionResolver = pluginVersionResolver;
          this.pluginManager = pluginManager;
          this.pluginPrefixResolver = pluginPrefixResolver;
          this.lifecyclePluginResolver = lifecyclePluginResolver;
      }
  
      private Plugin findPlugin( String groupId, String artifactId, Collection<Plugin> plugins )
      {
          for ( Plugin plugin : plugins )
          {
              if ( artifactId.equals( plugin.getArtifactId() ) && groupId.equals( plugin.getGroupId() ) )
             {
                 return plugin;
             }
         }
 
         return null;
     }
 
     public static Xpp3Dom convert( MojoDescriptor mojoDescriptor )
     {
         Xpp3Dom dom = new Xpp3Dom( "configuration" );
 
         PlexusConfiguration c = mojoDescriptor.getMojoConfiguration();
 
         PlexusConfiguration[] ces = c.getChildren();
 
         if ( ces != null )
         {
             for ( PlexusConfiguration ce : ces )
             {
                 String value = ce.getValue( null );
                 String defaultValue = ce.getAttribute( "default-value", null );
                 if ( value != null || defaultValue != null )
                 {
                     Xpp3Dom e = new Xpp3Dom( ce.getName() );
                     e.setValue( value );
                     if ( defaultValue != null )
                     {
                         e.setAttribute( "default-value", defaultValue );
                     }
                     dom.addChild( e );
                 }
             }
         }
 
         return dom;
     }
 
     // org.apache.maven.plugins:maven-remote-resources-plugin:1.0:process@executionId
 
     public MojoDescriptor getMojoDescriptor( String task, MavenSession session, MavenProject project )
         throws PluginNotFoundException, PluginResolutionException, PluginDescriptorParsingException,
         MojoNotFoundException, NoPluginFoundForPrefixException, InvalidPluginDescriptorException,
         PluginVersionResolutionException
     {
         String goal = null;
 
         Plugin plugin = null;
 
         StringTokenizer tok = new StringTokenizer( task, ":" );
 
         int numTokens = tok.countTokens();
 
         if ( numTokens >= 4 )
         {
             // We have everything that we need
             //
             // org.apache.maven.plugins:maven-remote-resources-plugin:1.0:process
             //
             // groupId
             // artifactId
             // version
             // goal
             //
             plugin = new Plugin();
             plugin.setGroupId( tok.nextToken() );
             plugin.setArtifactId( tok.nextToken() );
             plugin.setVersion( tok.nextToken() );
             goal = tok.nextToken();
 
             // This won't be valid, but it constructs something easy to read in the error message
             while ( tok.hasMoreTokens() )
             {
                 goal += ":" + tok.nextToken();
             }
         }
         else if ( numTokens == 3 )
         {
             // We have everything that we need except the version
             //
             // org.apache.maven.plugins:maven-remote-resources-plugin:???:process
             //
             // groupId
             // artifactId
             // ???
             // goal
             //
             plugin = new Plugin();
             plugin.setGroupId( tok.nextToken() );
             plugin.setArtifactId( tok.nextToken() );
             goal = tok.nextToken();
         }
         else if ( numTokens <= 2 )
         {
             // We have a prefix and goal
             //
             // idea:idea
             //
             String prefix = tok.nextToken();
 
             if ( numTokens == 2 )
             {
                 goal = tok.nextToken();
             }
             else
             {
                 // goal was missing - pass through to MojoNotFoundException
                 goal = "";
             }
 
             // This is the case where someone has executed a single goal from the command line
             // of the form:
             //
             // mvn remote-resources:process
             //
             // From the metadata stored on the server which has been created as part of a standard
             // Maven plugin deployment we will find the right PluginDescriptor from the remote
             // repository.
 
             plugin = findPluginForPrefix( prefix, session );
         }
 
         int executionIdx = goal.indexOf( '@' );
         if ( executionIdx > 0 )
         {
             goal = goal.substring( 0, executionIdx );
         }
 
         injectPluginDeclarationFromProject( plugin, project );
 
         // If there is no version to be found then we need to look in the repository metadata for
         // this plugin and see what's specified as the latest release.
         //
         if ( plugin.getVersion() == null )
         {
             resolvePluginVersion( plugin, session, project );
         }
 
         return pluginManager.getMojoDescriptor( plugin, goal, project.getRemotePluginRepositories(),
                                                 session.getRepositorySession() );
     }
 
     // TODO: take repo mans into account as one may be aggregating prefixes of many
     // TODO: collect at the root of the repository, read the one at the root, and fetch remote if something is missing
     // or the user forces the issue
 
     public Plugin findPluginForPrefix( String prefix, MavenSession session )
         throws NoPluginFoundForPrefixException
     {
         // [prefix]:[goal]
 
         if ( session.getCurrentProject() != null )
         {
             try
             {
                 lifecyclePluginResolver.resolveMissingPluginVersions( session.getCurrentProject(), session );
             }
             catch ( PluginVersionResolutionException e )
             {
                 // not critical here
                 logger.debug( e.getMessage(), e );
             }
         }
 
         PluginPrefixRequest prefixRequest = new DefaultPluginPrefixRequest( prefix, session );
         PluginPrefixResult prefixResult = pluginPrefixResolver.resolve( prefixRequest );
 
         Plugin plugin = new Plugin();
         plugin.setGroupId( prefixResult.getGroupId() );
         plugin.setArtifactId( prefixResult.getArtifactId() );
 
         return plugin;
     }
 
     private void resolvePluginVersion( Plugin plugin, MavenSession session, MavenProject project )
         throws PluginVersionResolutionException
     {
         PluginVersionRequest versionRequest =
             new DefaultPluginVersionRequest( plugin, session.getRepositorySession(),
                                              project.getRemotePluginRepositories() );
         plugin.setVersion( pluginVersionResolver.resolve( versionRequest ).getVersion() );
     }
 
     private void injectPluginDeclarationFromProject( Plugin plugin, MavenProject project )
     {
         Plugin pluginInPom = findPlugin( plugin, project.getBuildPlugins() );
 
         if ( pluginInPom == null && project.getPluginManagement() != null )
         {
             pluginInPom = findPlugin( plugin, project.getPluginManagement().getPlugins() );
         }
 
         if ( pluginInPom != null )
         {
             if ( plugin.getVersion() == null )
             {
                 plugin.setVersion( pluginInPom.getVersion() );
             }
 
             plugin.setDependencies( new ArrayList<>( pluginInPom.getDependencies() ) );
         }
     }
 
     private Plugin findPlugin( Plugin plugin, Collection<Plugin> plugins )
     {
         return findPlugin( plugin.getGroupId(), plugin.getArtifactId(), plugins );
     }
 
 }