MavenConfigureSourceEncoding.java

/*
 * Jabox Open Source Version
 * Copyright (C) 2009-2010 Dimitris Kapanidis                                                                                                                          
 * 
 * This file is part of Jabox
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see http://www.gnu.org/licenses/.
 */
package org.jabox.application;

import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

import org.apache.maven.model.Model;
import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
import org.apache.maven.model.io.xpp3.MavenXpp3Writer;
import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
import org.jabox.model.Project;

/**
 * Helper class that injects the <project.build.sourceEncoding> property
 * to a pom file.
 */
public class MavenConfigureSourceEncoding {
    private static final String SOURCE_ENCODING =
        "project.build.sourceEncoding";

    public MavenConfigureSourceEncoding() {
    }

    /**
     * Injects the <project.build.sourceEncoding> property to the pom
     * file.
     * <p>
     * If the SourceEncoding is empty then nothing is injected.
     * 
     * @param pomFile
     *            The pom file that will be injected with the encoding
     *            configuration.
     * @param project
     *            The project. It reads the sourceEncoding from this entity.
     * @throws IOException
     * @throws XmlPullParserException
     */
    public static void injectSourceEncoding(final File pomFile,
            Project project) throws IOException, XmlPullParserException {
        FileReader fileReader = new FileReader(pomFile);
        Model model = new MavenXpp3Reader().read(fileReader);

        String sourceEncoding = project.getSourceEncoding();
        if (sourceEncoding != null && sourceEncoding.length() > 0) {
            model.addProperty(SOURCE_ENCODING, sourceEncoding);
        }
        FileWriter fileWriter = new FileWriter(pomFile);
        new MavenXpp3Writer().write(fileWriter, model);
    }
}