package org.apache.maven.plugin.assembly.archive;

 /*

  * 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.artifact.DependencyResolutionRequiredException;

 import org.apache.maven.execution.MavenSession;

 import org.apache.maven.project.MavenProject;

 import org.codehaus.plexus.archiver.AbstractArchiveFinalizer;

 import org.codehaus.plexus.archiver.Archiver;

 import org.codehaus.plexus.archiver.ArchiverException;

 import org.codehaus.plexus.archiver.jar.JarArchiver;

 import org.codehaus.plexus.archiver.jar.Manifest;

 import org.codehaus.plexus.archiver.jar.ManifestException;

 import org.codehaus.plexus.util.IOUtil;

 import java.io.File;

 import java.io.FileInputStream;

 import java.io.FileNotFoundException;

 import java.io.IOException;

 import java.io.InputStreamReader;

 import java.io.Reader;

 import java.util.Collections;

 import java.util.List;

 /**

  * @version $Id: ManifestCreationFinalizer.java 1402062 2012-10-25 09:47:28Z dennisl $

  */

 public class ManifestCreationFinalizer

     extends AbstractArchiveFinalizer

 {

     private final MavenProject project;

     private final MavenSession session;

     private final MavenArchiveConfiguration archiveConfiguration;

     // TODO: I'd really prefer to rewrite MavenArchiver as either a

     // separate manifest creation utility (and to

     // create an include pom.properties etc into another archiver), or

     // an implementation of an archiver

     // (the first is preferable).

     private final MavenArchiver mavenArchiver = new MavenArchiver();

     public ManifestCreationFinalizer( final MavenSession session, final MavenProject project,

                                       final MavenArchiveConfiguration archiveConfiguration )

     {

         this.session = session;

         this.project = project;

         this.archiveConfiguration = archiveConfiguration;

     }

     @Override

     public void finalizeArchiveCreation( final Archiver archiver ) throws ArchiverException

     {

         if ( archiveConfiguration != null )

         {

             try

             {

                 Manifest manifest;

                 final File manifestFile = archiveConfiguration.getManifestFile();

                 if ( manifestFile != null )

                 {

                     Reader manifestFileReader = null;

                     try

                     {

                         manifestFileReader = new InputStreamReader( new FileInputStream( manifestFile ), "UTF-8" );

                         manifest = new Manifest( manifestFileReader );

                     }

                     catch ( final FileNotFoundException e )

                     {

                         throw new ArchiverException( "Manifest not found: " + e.getMessage(), e );

                     }

                     catch ( final IOException e )

                     {

                         throw new ArchiverException( "Error processing manifest: " + e.getMessage(), e );

                     }

                     finally

                     {

                         IOUtil.close( manifestFileReader );

                     }

                 }

                 else

                 {

                     manifest = mavenArchiver.getManifest( session, project, archiveConfiguration );

                 }

                 if ( ( manifest != null ) && ( archiver instanceof JarArchiver ) )

                 {

                     final JarArchiver jarArchiver = (JarArchiver) archiver;

                     jarArchiver.addConfiguredManifest( manifest );

                 }

             }

             catch ( final ManifestException e )

             {

                 throw new ArchiverException( "Error creating manifest: " + e.getMessage(), e );

             }

             catch ( final DependencyResolutionRequiredException e )

             {

                 throw new ArchiverException( "Dependencies were not resolved: " + e.getMessage(), e );

             }

         }

     }

     public List<String> getVirtualFiles()

     {

         if ( archiveConfiguration != null )

         {

             try

             {

                 if ( mavenArchiver.getManifest( project, archiveConfiguration.getManifest() ) != null )

                 {

                     return Collections.singletonList( "META-INF/MANIFEST.MF" );

                 }

             }

             catch ( final ManifestException e )

             {

             }

             catch ( final DependencyResolutionRequiredException e )

             {

             }

         }

         return null;

     }

 }