maven2-plugins/myfaces-javascript-plugin/src/main/java/org/apache/myfaces/buildtools/maven2/plugin/javascript/jmt/AbstractJavascriptMojo.java

/*
 *  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.
 */
package org.apache.myfaces.buildtools.maven2.plugin.javascript.jmt;

import java.io.File;
import java.util.Map;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.myfaces.buildtools.maven2.plugin.javascript.jmt.archive.JavascriptArtifactManager;
import org.codehaus.plexus.archiver.ArchiverException;

/**
 * @author <a href="mailto:nicolas@apache.org">Nicolas De Loof</a>
 */
public abstract class AbstractJavascriptMojo
    extends AbstractMojo
{

    /**
     * Map of of plugin artifacts.
     * 
     * @parameter expression="${plugin.artifactMap}"
     * @required
     * @readonly
     */
    private Map pluginArtifactMap;

    /**
     * @component 
     */
    private JavascriptArtifactManager javascriptArtifactManager;

    /**
     * Unpack a javascript dependency
     */
    protected void unpackJavascriptDependency( String artifact, File dest )
        throws MojoExecutionException
    {
        if ( !pluginArtifactMap.containsKey( artifact ) )
        {
            throw new MojoExecutionException( "Failed to resolve dependency " + artifact
                + " required by the plugin" );
        }
        Artifact javascript = (Artifact) pluginArtifactMap.get( artifact );

        try
        {
            javascriptArtifactManager.unpack( javascript, dest );
        }
        catch ( ArchiverException e )
        {
            throw new MojoExecutionException( "Failed to unpack javascript dependency " + artifact,
                e );
        }
    }

}