package org.apache.maven.archetype.mojos;

 /*

  * 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.archetype.ArchetypeManager;

 import org.apache.maven.archetype.common.ArchetypeArtifactManager;

 import org.apache.maven.archetype.exception.UnknownArchetype;

 import org.apache.maven.archetype.metadata.ArchetypeDescriptor;

 import org.apache.maven.archetype.metadata.RequiredProperty;

 import org.apache.maven.artifact.DependencyResolutionRequiredException;

 import org.apache.maven.plugin.AbstractMojo;

 import org.apache.maven.plugin.MojoExecutionException;

 import org.apache.maven.plugin.MojoFailureException;

 import org.apache.maven.project.MavenProject;

 import java.io.File;

 import java.io.IOException;

 /**

  * Build a JAR from the current Archetype project.

  *

  * @author           rafale

  * @goal             jar

  * @phase            package

  * @requiresProject

  */

 public class JarMojo

     extends AbstractMojo

 {

     /**

      * Directory containing the classes.

      *

      * @parameter  expression="${project.build.outputDirectory}"

      * @required

      */

     private File archetypeDirectory;

     /**

      * Name of the generated JAR.

      *

      * @parameter  alias="jarName" expression="${project.build.finalName}"

      * @required

      */

     private String finalName;

     /**

      * Directory containing the generated JAR.

      *

      * @parameter  expression="${project.build.directory}"

      * @required

      */

     private File outputDirectory;

     /**

      * The Maven project.

      *

      * @parameter  expression="${project}"

      * @required

      * @readonly

      */

     private MavenProject project;

     /**

      * The archetype manager component.

      *

      * @component

      */

     private ArchetypeManager manager;

     /**

      * The archetype artifact manager component.

      *

      * @component

      */

     private ArchetypeArtifactManager archetypeArtifactManager;

     public void execute()

         throws MojoExecutionException, MojoFailureException

     {

         try

         {

             getLog().info( "Building archetype jar: " + new File( outputDirectory, finalName ) );

             File jarFile = manager.archiveArchetype( archetypeDirectory, outputDirectory, finalName );

             checkArchetypeFile( jarFile );

             project.getArtifact().setFile( jarFile );

         }

         catch ( DependencyResolutionRequiredException ex )

         {

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

         }

         catch ( IOException ex )

         {

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

         }

     }

     private void checkArchetypeFile( File jarFile )

         throws MojoExecutionException

     {

         try

         {

             if ( archetypeArtifactManager.isFileSetArchetype( jarFile ) )

             {

                 checkFileSetArchetypeFile( jarFile );

             }

             else if ( !archetypeArtifactManager.isOldArchetype( jarFile ) )

             {

                 getLog().warn( "Building an Old (1.x) Archetype: consider migrating it to current 2.x Archetype." );

             }

             else

             {

                 throw new MojoExecutionException( "The current project does not built an archetype" );

             }

         }

         catch ( UnknownArchetype ua )

         {

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

         }

     }

     private void checkFileSetArchetypeFile( File jarFile )

         throws UnknownArchetype

     {

         ArchetypeDescriptor archetypeDescriptor = archetypeArtifactManager.getFileSetArchetypeDescriptor( jarFile );

         for ( RequiredProperty rp : archetypeDescriptor.getRequiredProperties() )

         {

             if ( rp.getKey().contains( "." ) )

             {

                 getLog().warn( "Invalid required property name '" + rp.getKey()

                                    + "': dot character makes is unusable in Velocity template" );

             }

         }

     }

 }