package org.apache.maven.plugin.coreit;

 /*

  * 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 java.io.File;

 import java.io.FileOutputStream;

 import java.io.IOException;

 import java.util.List;

 import java.util.Map;

 import java.util.Properties;

 import org.apache.maven.plugin.AbstractMojo;

 import org.apache.maven.plugin.MojoExecutionException;

 /**

  * Requires a singleton component in various ways and dumps the ids to a properties file.

  * 

  * @goal it

  * @phase initialize

  * 

  * @author Benjamin Bentmann

  * @version $Id: ItMojo.java 834849 2009-11-11 12:23:29Z bentmann $

  */

 public class ItMojo

     extends AbstractMojo

 {

     /**

      * The path to the output file.

      * 

      * @parameter expression="${touch.outputFile}" default-value="target/comp.properties"

      */

     private File outputFile;

     /**

      * Component lookup without role hint.

      * 

      * @component

      */

     private Component componentWithoutRoleHint;

     /**

      * Component lookup with explicit role hint.

      * 

      * @component roleHint="default"

      */

     private Component componentWithRoleHint;

     /**

      * Component lookup via active map.

      * 

      * @component role="org.apache.maven.plugin.coreit.Component"

      */

     private Map componentMap;

     /**

      * Component lookup via active list.

      * 

      * @component role="org.apache.maven.plugin.coreit.Component"

      */

     private List componentList;

     /**

      * Runs this mojo.

      * 

      * @throws MojoExecutionException If the output file could not be created.

      */

     public void execute()

         throws MojoExecutionException

     {

         Component componentFromMap = (Component) componentMap.values().iterator().next();

         Component componentFromList = (Component) componentList.iterator().next();

         getLog().info( "[MAVEN-CORE-IT-LOG] Using component: " + componentWithoutRoleHint );

         getLog().info( "[MAVEN-CORE-IT-LOG] Using component: " + componentWithRoleHint );

         getLog().info( "[MAVEN-CORE-IT-LOG] Using component: " + componentFromMap );

         getLog().info( "[MAVEN-CORE-IT-LOG] Using component: " + componentFromList );

         Properties props = new Properties();

         props.setProperty( "id.0", componentWithoutRoleHint.getId() );

         props.setProperty( "id.1", componentWithRoleHint.getId() );

         props.setProperty( "id.2", componentFromMap.getId() );

         props.setProperty( "id.3", componentFromList.getId() );

         getLog().info( "[MAVEN-CORE-IT-LOG] Creating output file: " + outputFile );

         try

         {

             outputFile.getParentFile().mkdirs();

             FileOutputStream os = new FileOutputStream( outputFile );

             try

             {

                 props.store( os, "MAVEN-CORE-IT-LOG" );

             }

             finally

             {

                 os.close();

             }

         }

         catch ( IOException e )

         {

             throw new MojoExecutionException( "Output file could not be created: " + outputFile, e );

         }

         getLog().info( "[MAVEN-CORE-IT-LOG] Created output file: " + outputFile );

     }

 }