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.Properties;

 import org.apache.maven.plugin.AbstractMojo;

 import org.apache.maven.plugin.MojoExecutionException;

 /**

  * Check that we correctly use the implementation parameter.

  *

  * @goal param-implementation

  */

 public class ParameterImplementationMojo

     extends AbstractMojo

 {

     /**

      * The path to the properties file for the parameter information.

      * 

      * @parameter

      */

     private File outputFile;

     /**

      * A parameter whose type is an interface but with a default implementation class.

      * 

      * @parameter implementation="org.apache.maven.plugin.coreit.sub.AnImplementation"

      */

     private AnInterface theParameter;

     public void execute()

         throws MojoExecutionException

     {

         Properties props = new Properties();

         if ( theParameter != null )

         {

             getLog().info( "[MAVEN-CORE-IT-LOG] theParameter = " + theParameter );

             props.setProperty( "theParameter.class", theParameter.getClass().getName() );

             props.setProperty( "theParameter.string", theParameter.toString() );

         }

         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( "Failed to create output file " + outputFile + ": " + e.getMessage(), e );

         }

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

     }

 }