package org.apache.maven.plugins.mavenone;
   
   /*
    * 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.archiver.MavenArchiveConfiguration;
  import org.apache.maven.archiver.MavenArchiver;
  import org.apache.maven.plugin.AbstractMojo;
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.project.MavenProject;
  import org.apache.maven.project.MavenProjectHelper;
  import org.codehaus.plexus.archiver.ArchiverException;
  import org.codehaus.plexus.archiver.jar.JarArchiver;
  import org.codehaus.plexus.util.FileUtils;
  
  import java.io.File;
  
  /**
   * Package a Maven 1 plugin.
   *
   * @goal maven-one-plugin
   * @phase package
   */
  public class MavenOnePluginMojo
      extends AbstractMojo
  {
  
      private static final String[] DEFAULT_EXCLUDES = new String[]{"**/package.html"};
  
      private static final String[] DEFAULT_INCLUDES = new String[]{"**/**"};
  
      /**
       * Base directory.
       *
       * @parameter expression="${basedir}"
       * @required
       * @readonly
       */
      private File basedir;
  
      /**
       * Directory containing the generated JAR.
       *
       * @parameter expression="${project.build.directory}"
       * @required
       * @readonly
       */
      private File targetDirectory;
  
      /**
       * Name of the generated JAR.
       *
       * @parameter expression="${project.build.finalName}"
       * @required
       */
      private String finalName;
  
      /**
       * The Jar archiver.
       *
       * @component role="org.codehaus.plexus.archiver.Archiver" roleHint="jar"
       * @required
       */
      private JarArchiver jarArchiver;
  
      /**
       * The maven project.
       *
       * @parameter expression="${project}"
       * @required
       * @readonly
       */
      private MavenProject project;
  
      /**
       * Used for attaching the artifact in the project.
       *
       * @component
       */
      private MavenProjectHelper projectHelper;
  
      /**
       * Directory that contains the compiled classes to include in the jar.
      *
      * @parameter expression="${project.build.outputDirectory}"
      * @required
      */
     private File contentDirectory;
 
     /**
      * Generates the JAR.
      *
      * @todo Add license files in META-INF directory.
      */
     public File createArchive()
         throws MojoExecutionException
     {
         File jarFile = new File( targetDirectory, finalName + ".jar" );
 
         MavenArchiver archiver = new MavenArchiver();
 
         archiver.setArchiver( jarArchiver );
 
         archiver.setOutputFile( jarFile );
 
         try
         {
             if ( contentDirectory.exists() )
             {
                 archiver.getArchiver().addDirectory( contentDirectory, DEFAULT_INCLUDES, DEFAULT_EXCLUDES );
             }
 
             addFile( archiver, new File( basedir, "plugin.jelly" ) );
             addFile( archiver, new File( basedir, "plugin.properties" ) );
             addFile( archiver, new File( basedir, "project.properties" ) );
             addFile( archiver, new File( basedir, "build.properties" ) );
             addFile( archiver, new File( basedir, "project.xml" ) );
             addDirectory( archiver, new File( basedir, "src/plugin-resources" ) );
 
             archiver.createArchive( project, new MavenArchiveConfiguration() );
 
             return jarFile;
         }
         catch ( Exception e )
         {
             // TODO: improve error handling
             throw new MojoExecutionException( "Error assembling JAR", e );
         }
     }
 
     private static void addDirectory( MavenArchiver archiver, File file )
         throws ArchiverException
     {
         if ( file.exists() )
         {
             archiver.getArchiver().addDirectory( file, file.getName() + "/", DEFAULT_INCLUDES,
                                                  FileUtils.getDefaultExcludes() );
         }
     }
 
     private static void addFile( MavenArchiver archiver, File file )
         throws ArchiverException
     {
         if ( file.exists() )
         {
             archiver.getArchiver().addFile( file, file.getName() );
         }
     }
 
     /**
      * Generates the JAR.
      *
      * @todo Add license files in META-INF directory.
      */
     public void execute()
         throws MojoExecutionException
     {
         File jarFile = createArchive();
 
         project.getArtifact().setFile( jarFile );
     }
 }