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.

      *

      * @parameter expression="${component.org.codehaus.plexus.archiver.Archiver#jar}"

      * @required

      */

     private JarArchiver jarArchiver;

     /**

      * The maven project.

      *

      * @parameter expression="${project}"

      * @required

      * @readonly

      */

     private MavenProject project;

     /**

      * @component

      * @todo Write Javadoc for this

      */

     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 );

     }

 }