UntarEclipse.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.eclipse_startup;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.ice.tar.TarEntry;
import com.ice.tar.TarInputStream;

public class UntarEclipse {
    private static final Logger LOGGER = LoggerFactory
        .getLogger(UntarEclipse.class);

    public static void untar(final InputStream in, final String untarDir)
            throws IOException {
        LOGGER.info("Reading TarInputStream... ");
        TarInputStream tin = new TarInputStream(in);
        TarEntry tarEntry = tin.getNextEntry();
        if (new File(untarDir).exists()) {
            while (tarEntry != null) {
                File destPath =
                    new File(untarDir + File.separatorChar
                        + tarEntry.getName());
                LOGGER.info("Processing " + destPath.getAbsoluteFile());
                if (!tarEntry.isDirectory()) {
                    FileOutputStream fout = new FileOutputStream(destPath);
                    tin.copyEntryContents(fout);
                    fout.close();
                } else {
                    destPath.mkdir();
                }
                tarEntry = tin.getNextEntry();
            }
            tin.close();
        } else {
            LOGGER.info("That destination directory doesn't exist! "
                + untarDir);
        }

    }

}