JtracServer.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.its.jtrac;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException;
import java.util.zip.ZipFile;

import org.jabox.apis.embedded.AbstractEmbeddedServer;
import org.jabox.environment.Environment;
import org.jabox.utils.DownloadHelper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class JtracServer extends AbstractEmbeddedServer {
    private static final long serialVersionUID = 6420497272615076716L;

    private static final String URL =
        "http://sourceforge.net/projects/j-trac/files/jtrac/2.0/jtrac-2.0.zip/download";

    private static final Logger LOGGER = LoggerFactory
        .getLogger(JtracServer.class);

    @Override
    protected boolean getParentLoaderPriority() {
        return true;
    }

    public static File retrieveJtracWar(final File jtracZip) {
        try {
            ZipFile zip = new ZipFile(jtracZip);
            ZipEntry entry = zip.getEntry("jtrac/jtrac.war");
            InputStream is = zip.getInputStream(entry);
            BufferedInputStream bin = null;
            BufferedOutputStream bout = null;
            bin = new BufferedInputStream(is);
            File jtracWar = File.createTempFile("jtrac", ".war");
            jtracWar.deleteOnExit();
            bout =
                new BufferedOutputStream(new FileOutputStream(jtracWar));
            while (true) {
                int datum = bin.read();
                if (datum == -1) {
                    break;
                }
                bout.write(datum);
            }
            bout.flush();
            return jtracWar;
        } catch (ZipException e) {
            LOGGER.error("Zip Exception thrown", e);
        } catch (IOException e) {
            LOGGER.error("IO Exception thrown", e);
        }
        return null;
    }

    public static void copy(final InputStream in, final OutputStream out)
            throws IOException {

        BufferedInputStream bin = new BufferedInputStream(in);
        BufferedOutputStream bout = new BufferedOutputStream(out);

        while (true) {
            int datum = bin.read();
            if (datum == -1) {
                break;
            }
            bout.write(datum);
        }
        bout.flush();
    }

    @Override
    public String getServerName() {
        return "jtrac";
    }

    @Override
    public String getWarPath() {
        File downloadsDir = Environment.getDownloadsDir();

        File zipFile = new File(downloadsDir, "jtrac.zip");
        zipFile = DownloadHelper.downloadFile(URL, zipFile);
        File jtracWar = retrieveJtracWar(zipFile);
        return jtracWar.getAbsolutePath();
    }
}