org.vulpe.commons.util.VulpeZipUtil.java Source code

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Here is the source code for org.vulpe.commons.util.VulpeZipUtil.java

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/**
 * Vulpe Framework - Quick and Smart ;)
 * Copyright (C) 2011 Active Thread
 * 
 * Este programa  software livre; voc pode redistribu-lo e/ou
 * modific-lo sob os termos da Licena Pblica Geral GNU, conforme
 * publicada pela Free Software Foundation; tanto a verso 2 da
 * Licena como (a seu critrio) qualquer verso mais nova.
 * 
 * Este programa  distribudo na expectativa de ser til, mas SEM
 * QUALQUER GARANTIA; sem mesmo a garantia implcita de
 * COMERCIALIZAO ou de ADEQUAO A QUALQUER PROPSITO EM
 * PARTICULAR. Consulte a Licena Pblica Geral GNU para obter mais
 * detalhes.
 * 
 * Voc deve ter recebido uma cpia da Licena Pblica Geral GNU
 * junto com este programa; se no, escreva para a Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
 */
/**
 * Vulpe Framework - Quick and Smart ;)
 * Copyright (C) 2011 Active Thread
 * 
 * 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 2
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.vulpe.commons.util;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Map;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;

import org.apache.commons.io.IOUtils;

public class VulpeZipUtil {

    public static byte[] zip(final Map<String, FileInputStream> streams, final String outputFile) {
        byte[] buffer = new byte[1024];

        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        try {
            final FileOutputStream fos = new FileOutputStream(outputFile);

            final ZipOutputStream out = new ZipOutputStream(fos);
            for (final String key : streams.keySet()) {
                final FileInputStream stream = streams.get(key);
                final ZipInputStream zin = new ZipInputStream(
                        new ByteArrayInputStream(IOUtils.toByteArray(stream)));
                out.putNextEntry(new ZipEntry(key));
                int len = 0;
                while ((len = zin.read(buffer)) > 0) {
                    out.write(buffer, 0, len);
                }
                out.closeEntry();
                zin.close();
                stream.close();
            }

            out.close();

        } catch (IOException e) {
        }
        return baos.toByteArray();
    }

    public static byte[] zipBytes(final Map<String, Byte[]> streams) {
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        try {
            final ZipOutputStream out = new ZipOutputStream(baos);
            for (final String key : streams.keySet()) {
                final Byte[] value = streams.get(key);
                byte[] bytes = new byte[value.length];
                for (int i = 0; i < value.length; i++) {
                    bytes[i] = value[i].byteValue();
                }
                out.putNextEntry(new ZipEntry(key));
                out.write(bytes);
                out.closeEntry();
            }

            out.close();

        } catch (IOException e) {
        }
        return baos.toByteArray();
    }

}