001    /*
002     *  Copyright 2006 The Apache Software Foundation
003     *
004     *  Licensed under the Apache License, Version 2.0 (the "License");
005     *  you may not use this file except in compliance with the License.
006     *  You may obtain a copy of the License at
007     *
008     *     http://www.apache.org/licenses/LICENSE-2.0
009     *
010     *  Unless required by applicable law or agreed to in writing, software
011     *  distributed under the License is distributed on an "AS IS" BASIS,
012     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     *  See the License for the specific language governing permissions and
014     *  limitations under the License.
015     */
016    
017    package org.apache.geronimo.plugin;
018    
019    import org.apache.maven.plugin.AbstractMojo;
020    import org.apache.maven.plugin.MojoExecutionException;
021    import org.apache.maven.plugin.MojoFailureException;
022    import org.apache.maven.plugin.logging.Log;
023    
024    /**
025     * Support for Mojo implementations.
026     *
027     * @version $Id: MojoSupport.java 422054 2006-07-14 21:25:59Z jdillon $
028     */
029    public abstract class MojoSupport
030        extends AbstractMojo
031    {
032        protected Log log;
033    
034        protected void init() {
035            log = getLog();
036        }
037    
038        public void execute() throws MojoExecutionException, MojoFailureException {
039            init();
040    
041            try {
042                doExecute();
043            }
044            catch (Exception e) {
045                if (e instanceof MojoExecutionException) {
046                    throw (MojoExecutionException)e;
047                }
048                else if (e instanceof MojoFailureException) {
049                    throw (MojoFailureException)e;
050                }
051                else {
052                    throw new MojoExecutionException(e.getMessage(), e);
053                }
054            }
055        }
056    
057        protected void doExecute() throws Exception {
058            // Sub-class should override
059        }
060    }