001    /**
002     * Copyright 2009-2012 The Kuali Foundation
003     *
004     * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
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    package org.codehaus.mojo.properties;
017    
018    /*
019     * Licensed to the Apache Software Foundation (ASF) under one
020     * or more contributor license agreements.  See the NOTICE file
021     * distributed with this work for additional information
022     * regarding copyright ownership.  The ASF licenses this file
023     * to you under the Apache License, Version 2.0 (the
024     * "License"); you may not use this file except in compliance
025     * with the License.  You may obtain a copy of the License at
026     *
027     *   http://www.apache.org/licenses/LICENSE-2.0
028     *
029     * Unless required by applicable law or agreed to in writing,
030     * software distributed under the License is distributed on an
031     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
032     * KIND, either express or implied.  See the License for the
033     * specific language governing permissions and limitations
034     * under the License.
035     */
036    
037    import java.io.File;
038    import java.io.FileNotFoundException;
039    import java.io.FileOutputStream;
040    import java.io.IOException;
041    import java.util.Properties;
042    
043    import org.apache.maven.plugin.AbstractMojo;
044    import org.apache.maven.plugin.MojoExecutionException;
045    import org.apache.maven.project.MavenProject;
046    
047    /**
048     * @author <a href="mailto:zarars@gmail.com">Zarar Siddiqi</a>
049     * @version $Id: AbstractWritePropertiesMojo.java 8861 2009-01-21 15:35:38Z pgier $
050     */
051    public abstract class AbstractWritePropertiesMojo extends AbstractMojo {
052    
053        /**
054         * @parameter default-value="${project}"
055         * @required
056         * @readonly
057         */
058        protected MavenProject project;
059    
060        /**
061         * The properties file that will be used when writing properties.
062         *
063         * @parameter
064         * @required
065         */
066        protected File outputFile;
067    
068        protected void writeProperties(Properties properties, File file) throws MojoExecutionException {
069            FileOutputStream fos = null;
070            try {
071                fos = new FileOutputStream(file);
072                properties.store(fos, "Properties");
073            } catch (FileNotFoundException e) {
074                getLog().error("Could not create FileOutputStream: " + fos);
075                throw new MojoExecutionException(e.getMessage(), e);
076            } catch (IOException e) {
077                getLog().error("Error writing properties: " + fos);
078                throw new MojoExecutionException(e.getMessage(), e);
079            }
080    
081            try {
082                fos.close();
083            } catch (IOException e) {
084                getLog().error("Error closing FileOutputStream: " + fos);
085                throw new MojoExecutionException(e.getMessage(), e);
086            }
087        }
088    
089        protected void validateOutputFile() throws MojoExecutionException {
090            if (outputFile.isDirectory()) {
091                throw new MojoExecutionException("outputFile must be a file and not a directory");
092            }
093            // ensure path exists
094            if (outputFile.getParentFile() != null) {
095                outputFile.getParentFile().mkdirs();
096            }
097        }
098    }