package org.apache.maven.plugin.war.packaging;

 /*

  * 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.resolver.filter.ScopeArtifactFilter;

 import org.apache.maven.plugin.MojoExecutionException;

 import org.apache.maven.plugin.war.Overlay;

 import org.codehaus.plexus.interpolation.InterpolationException;

 import java.io.IOException;

 import java.util.ArrayList;

 import java.util.Iterator;

 import java.util.List;

 import java.util.Set;

 /**

  * Handles the artifacts that needs to be packaged in the web application.

  *

  * @author Stephane Nicoll

  * 

  * @version $Id: ArtifactsPackagingTask.java 985593 2010-08-14 22:12:09Z dennisl $

  */

 public class ArtifactsPackagingTask

     extends AbstractWarPackagingTask

 {

     public static final String TLD_PATH = "WEB-INF/tld/";

     public static final String SERVICES_PATH = "WEB-INF/services/";

     private final Set artifacts;

     private final String id;

     public ArtifactsPackagingTask( Set artifacts, Overlay currentProjectOverlay )

     {

         this.artifacts = artifacts;

         this.id = currentProjectOverlay.getId();

     }

     public void performPackaging( WarPackagingContext context )

         throws MojoExecutionException

     {

         try

         {

         final ScopeArtifactFilter filter = new ScopeArtifactFilter( Artifact.SCOPE_RUNTIME );

         final List duplicates = findDuplicates( context, artifacts );

         for ( Iterator iter = artifacts.iterator(); iter.hasNext(); )

         {

             Artifact artifact = (Artifact) iter.next();

             String targetFileName = getArtifactFinalName( context, artifact );

             context.getLog().debug( "Processing: " + targetFileName );

             if ( duplicates.contains( targetFileName ) )

             {

                 context.getLog().debug( "Duplicate found: " + targetFileName );

                 targetFileName = artifact.getGroupId() + "-" + targetFileName;

                 context.getLog().debug( "Renamed to: " + targetFileName );

             }

             context.getWebappStructure().registerTargetFileName( artifact, targetFileName );

             if ( !artifact.isOptional() && filter.include( artifact ) )

             {

                 try

                 {

                     String type = artifact.getType();

                     if ( "tld".equals( type ) )

                     {

                         copyFile( id, context, artifact.getFile(), TLD_PATH + targetFileName );

                     }

                     else if ( "aar".equals( type ) )

                     {

                         copyFile( id, context, artifact.getFile(), SERVICES_PATH + targetFileName );

                     }

                     else if ( "jar".equals( type ) || "ejb".equals( type ) || "ejb-client".equals( type )

                         || "test-jar".equals( type ) )

                     {

                         copyFile( id, context, artifact.getFile(), LIB_PATH + targetFileName );

                     }

                     else if ( "par".equals( type ) )

                     {

                         targetFileName = targetFileName.substring( 0, targetFileName.lastIndexOf( '.' ) ) + ".jar";

                         copyFile( id, context, artifact.getFile(), LIB_PATH + targetFileName );

                     }

                     else if ( "war".equals( type ) )

                     {

                         // Nothing to do here, it is an overlay and it's already handled

                         context.getLog().debug( "war artifacts are handled as overlays, ignoring [" + artifact + "]" );

                     }

                     else if ( "zip".equals( type ) )

                     {

                         // Nothing to do here, it is an overlay and it's already handled

                         context.getLog().debug( "zip artifacts are handled as overlays, ignoring [" + artifact + "]" );

                     }

                     else

                     {

                         context.getLog().debug(

                             "Artifact of type [" + type + "] is not supported, ignoring [" + artifact + "]" );

                     }

                 }

                 catch ( IOException e )

                 {

                     throw new MojoExecutionException( "Failed to copy file for artifact [" + artifact + "]", e );

                 }

             }

         }

         }

         catch ( InterpolationException e )

         {

             throw new MojoExecutionException( e.getMessage(), e );

         }

     }

     /**

      * Searches a set of artifacts for duplicate filenames and returns a list

      * of duplicates.

      *

      * @param context   the packaging context

      * @param artifacts set of artifacts

      * @return List of duplicated artifacts as bundling file names

      */

     private List findDuplicates( WarPackagingContext context, Set artifacts ) 

         throws InterpolationException

     {

         List duplicates = new ArrayList();

         List identifiers = new ArrayList();

         for ( Iterator iter = artifacts.iterator(); iter.hasNext(); )

         {

             Artifact artifact = (Artifact) iter.next();

             String candidate = getArtifactFinalName( context, artifact );

             if ( identifiers.contains( candidate ) )

             {

                 duplicates.add( candidate );

             }

             else

             {

                 identifiers.add( candidate );

             }

         }

         return duplicates;

     }

 }