package org.apache.maven.plugin.coreit;
   
   /*
    * 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.artifact.Artifact;
  import org.apache.maven.artifact.factory.ArtifactFactory;
  import org.apache.maven.plugin.AbstractMojo;
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.project.MavenProject;
  
  import java.util.Arrays;
  import java.util.Collection;
  import java.util.LinkedHashSet;
  import java.util.Set;
  
  /**
   * Injects artifacts from the plugin into the dependency artifacts of the project.
   *
   * @author Benjamin Bentmann
   *
   * @goal inject
   */
  public class InjectMojo
      extends AbstractMojo
  {
  
      /**
       * The version-less keys in the form <code>groupId:artifactId</code> of the plugin artifacts to inject into
       * dependency artifacts of the project.
       *
       * @parameter
       */
      private String[] artifacts;
  
      /**
       * @parameter default-value="${plugin.artifacts}"
       * @readonly
       */
      private Collection pluginArtifacts;
  
      /**
       * The current Maven project.
       *
       * @parameter default-value="${project}"
       * @required
       * @readonly
       */
      private MavenProject project;
  
      /**
       * The artifact factory.
       *
       * @component
       */
      private ArtifactFactory factory;
  
      /**
       * Runs this mojo.
       *
       * @throws MojoExecutionException If an error occured.
       */
      public void execute()
          throws MojoExecutionException
      {
          Set artifactKeys = new LinkedHashSet();
  
          if ( artifacts != null )
          {
              artifactKeys.addAll( Arrays.asList( artifacts ) );
          }
  
          Set dependencyArtifacts = project.getDependencyArtifacts();
  
          if ( dependencyArtifacts != null )
          {
              dependencyArtifacts = new LinkedHashSet( dependencyArtifacts );
          }
          else
          {
              dependencyArtifacts = new LinkedHashSet();
          }
  
         for ( Object pluginArtifact : pluginArtifacts )
         {
             Artifact artifact = (Artifact) pluginArtifact;
 
             String artifactKey = artifact.getGroupId() + ':' + artifact.getArtifactId();
 
             if ( artifactKeys.remove( artifactKey ) )
             {
                 artifact =
                     factory.createArtifact( artifact.getGroupId(), artifact.getArtifactId(), artifact.getVersion(),
                                             Artifact.SCOPE_COMPILE, artifact.getType() );
 
                 getLog().info( "[MAVEN-CORE-IT-LOG] Injecting dependency artifact " + artifact );
 
                 dependencyArtifacts.add( artifact );
             }
         }
 
         project.setDependencyArtifacts( dependencyArtifacts );
 
         getLog().info( "[MAVEN-CORE-IT-LOG] Set dependency artifacts to " + dependencyArtifacts );
 
         if ( !artifactKeys.isEmpty() )
         {
             getLog().warn( "[MAVEN-CORE-IT-LOG] These artifacts were not found " + artifactKeys );
         }
     }
 
 }