package org.apache.maven.plugin.dependency.resolvers;
   
   /*
    * 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.plugin.MojoExecutionException;
  import org.apache.maven.plugin.dependency.utils.DependencyStatusSets;
  import org.apache.maven.plugin.dependency.utils.DependencyUtil;
  import org.apache.maven.plugin.dependency.utils.filters.ResolveFileFilter;
  import org.apache.maven.plugin.dependency.utils.markers.SourcesFileMarkerHandler;
  import org.apache.maven.plugins.annotations.LifecyclePhase;
  import org.apache.maven.plugins.annotations.Mojo;
  import org.apache.maven.plugins.annotations.Parameter;
  import org.apache.maven.plugins.annotations.ResolutionScope;
  import org.apache.maven.shared.artifact.filter.collection.ArtifactsFilter;
  
  import java.io.IOException;
  
  /**
   * Goal that resolves the project dependencies from the repository.
   *
   * @author <a href="mailto:brianf@apache.org">Brian Fox</a>
   * @version $Id: ResolveDependenciesMojo.html 862013 2013-05-14 22:24:45Z hboutemy $
   * @since 2.0
   */
  @Mojo( name = "resolve", requiresDependencyResolution = ResolutionScope.TEST,
         defaultPhase = LifecyclePhase.GENERATE_SOURCES, threadSafe = true )
  public class ResolveDependenciesMojo
      extends AbstractResolveMojo
  {
  
      /**
       * If we should display the scope when resolving
       *
       * @since 2.0-alpha-2
       */
      @Parameter( property = "mdep.outputScope", defaultValue = "true" )
      protected boolean outputScope;
  
      /**
       * Only used to store results for integration test validation
       */
      DependencyStatusSets results;
  
      /**
       * Sort the output list of resolved artifacts alphabetically.
       * The default ordering matches the classpath order.
       * 
       * @since 2.8
       */
      @Parameter( property = "sort", defaultValue = "false" )
      boolean sort;
  
      /**
       * Include parent poms in the dependency resolution list.
       * 
       * @since 2.8
       */
      @Parameter( property = "includeParents", defaultValue = "false" )
      boolean includeParents;
  
      /**
       * Main entry into mojo. Gets the list of dependencies and iterates through displaying the resolved version.
       *
       * @throws MojoExecutionException with a message if an error occurs.
       */
      protected void doExecute()
          throws MojoExecutionException
      {
          // get sets of dependencies
          results = this.getDependencySets( false, includeParents );
  
          String output = results.getOutput( outputAbsoluteArtifactFilename, outputScope, sort );
          try
          {
              if ( outputFile == null )
              {
                  DependencyUtil.log( output, getLog() );
              }
              else
              {
                  DependencyUtil.write( output, outputFile, appendOutput, getLog() );
              }
         }
         catch ( IOException e )
         {
             throw new MojoExecutionException( e.getMessage(), e );
         }
     }
 
     /**
      * @return Returns the results.
      */
     public DependencyStatusSets getResults()
     {
         return this.results;
     }
 
     protected ArtifactsFilter getMarkedArtifactFilter()
     {
         return new ResolveFileFilter( new SourcesFileMarkerHandler( this.markersDirectory ) );
     }
 }