/*
* Copyright 2012 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.artificer.atom.archive;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
import org.apache.commons.compress.archivers.zip.ZipFile;
import org.apache.commons.io.IOUtils;
import org.artificer.atom.i18n.Messages;
/**
* Some general porpoise utils for working with archives.
*
* @author eric.wittmann@redhat.com
*/
public class ArchiveUtils {
/**
* Unpacks the given archive file into the output directory.
* @param archiveFile an archive file
* @param toDir where to unpack the archive to
* @throws IOException
*/
public static void unpackToWorkDir(File archiveFile, File toDir) throws IOException {
ZipFile zipFile = null;
try {
zipFile = new ZipFile(archiveFile);
Enumeration<ZipArchiveEntry> zipEntries = zipFile.getEntriesInPhysicalOrder();
while (zipEntries.hasMoreElements()) {
ZipArchiveEntry entry = zipEntries.nextElement();
String entryName = entry.getName();
File outFile = new File(toDir, entryName);
if (!outFile.getParentFile().exists()) {
if (!outFile.getParentFile().mkdirs()) {
throw new IOException(Messages.i18n.format("FAILED_TO_CREATE_PARENT_DIR", outFile.getParentFile().getCanonicalPath()));
}
}
if (entry.isDirectory()) {
if (outFile.isDirectory()) {
// Do nothing - already created.
} else if (outFile.isFile()) {
throw new IOException(Messages.i18n.format("FAILED_TO_CREATE_DIR", outFile.getCanonicalPath()));
} else if (!outFile.mkdir()) {
throw new IOException(Messages.i18n.format("FAILED_TO_CREATE_DIR", outFile.getCanonicalPath()));
}
} else {
InputStream zipStream = null;
OutputStream outFileStream = null;
zipStream = zipFile.getInputStream(entry);
outFileStream = new FileOutputStream(outFile);
try {
IOUtils.copy(zipStream, outFileStream);
} finally {
IOUtils.closeQuietly(zipStream);
IOUtils.closeQuietly(outFileStream);
}
}
}
} finally {
ZipFile.closeQuietly(zipFile);
}
}
}