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Cyclades is a Services Engine
/*******************************************************************************
* Copyright (c) 2012, THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* Neither the name of the STANFORD UNIVERSITY nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************/
package org.cyclades.io;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;
import com.google.common.io.ByteStreams;
public class Zip {
public static void zipDirectory (String sourceDir, String destinationFile) throws Exception {
final String eLabel = "Zip.zipDirectory: ";
FileOutputStream dest = null;
ZipOutputStream out = null;
try {
File sourceDirFile = new File(sourceDir);
if (!sourceDirFile.exists()) throw new Exception("Directory does not exist: " + sourceDir);
if (sourceDirFile.isFile()) throw new Exception("Not a directory: " + sourceDir);
dest = new FileOutputStream(destinationFile);
out = new ZipOutputStream(dest);
//out.setMethod(ZipOutputStream.DEFLATED);
addResourcesToZip(sourceDirFile, out, sourceDirFile);
} catch(Exception e) {
throw new Exception(eLabel + e);
} finally {
if (out != null) try { out.close(); } catch (Exception e) {}
if (dest != null) try { dest.close(); } catch (Exception e) {}
}
}
private static void addResourcesToZip (File sourceFile, ZipOutputStream out, File base) throws Exception {
final String eLabel = "Zip.addResourcesToZip: ";
try {
FileInputStream fis = null;
ZipEntry entry;
File[] children = sourceFile.listFiles();
for (int i = 0; i < children.length; i++) {
if (!children[i].isFile()) {
addResourcesToZip(children[i], out, base);
} else {
try {
fis = new FileInputStream(children[i]);
entry = new ZipEntry(children[i].getAbsolutePath().substring(base.getAbsolutePath().length() + 1));
out.putNextEntry(entry);
ByteStreams.copy(fis, out);
out.closeEntry();
} finally {
if (fis != null) try { fis.close(); } catch (Exception e) {}
}
}
}
} catch(Exception e) {
throw new Exception(eLabel + e);
}
}
public static void unzipDirectory (String sourceFile, String destinationDirectory) throws Exception {
final String eLabel = "Zip.unzipDirectory: ";
FileInputStream fis = null;
ZipInputStream zis = null;
FileOutputStream fos = null;
try {
fis = new FileInputStream(sourceFile);
zis = new ZipInputStream(fis);
ZipEntry entry;
FileUtils.verifyOutputDirectory(destinationDirectory);
StringBuilder sb = new StringBuilder();
String targetResource;
while((entry = zis.getNextEntry()) != null) {
sb.setLength(0);
targetResource = sb.append(destinationDirectory).append("/").append(entry.getName()).toString();
FileUtils.verifyFileOutputDirectory(targetResource);
try {
fos = new FileOutputStream(targetResource);
ByteStreams.copy(zis, fos);
} finally {
if (fos != null) try { fos.close(); } catch (Exception e) {}
}
}
} catch(Exception e) {
throw new Exception(eLabel + e);
} finally {
if (zis != null) try { zis.close(); } catch (Exception e) {}
if (fis != null) try { fis.close(); } catch (Exception e) {}
}
}
}