package org.apache.maven.its.plugins;

 /*

  * 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.plugin.AbstractMojo;

 import org.apache.maven.plugin.MojoExecutionException;

 import org.apache.maven.plugin.MojoFailureException;

 import org.codehaus.plexus.velocity.VelocityComponent;

 /**

  * @goal velocity

  * @phase validate

  */

 public class VelocityMojo

     extends AbstractMojo

 {

     /**

      * @component

      */

     protected VelocityComponent velocityComponent;

     public void execute()

         throws MojoExecutionException, MojoFailureException

     {

         // velocityComponent should not be null

         velocityComponent.getEngine();

         try

         {

             // velocityComponent engine should not be null

             // this is the real test to check that we got the right Initializable interface in both Plexus and the component

             /*

              * NOTE: There's a bug in the plexus-velocity:1.1.7 component that fails to transform "/template.vm" into

              * a proper resource name before searching the context class loader so we avoid the leading slash here.

              */

             velocityComponent.getEngine().getTemplate( "template.vm" );

         }

         catch ( Exception e )

         {

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

         }

     }

 }