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/*
* SonarQube, open source software quality management tool.
* Copyright (C) 2008-2014 SonarSource
* mailto:contact AT sonarsource DOT com
*
* SonarQube is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* SonarQube 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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.sonar.api.utils;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipOutputStream;
/**
* @since 1.10
*/
public final class ZipUtils {
private static final String ERROR_CREATING_DIRECTORY = "Error creating directory: ";
private ZipUtils() {
// only static methods
}
/**
* Unzip a file into a new temporary directory. The directory is not deleted on JVM exit, so it
* must be explicitely deleted.
*
* @return the temporary directory
* @since 2.2
* @deprecated since 3.4 use by {@link org.sonar.api.scan.filesystem.ModuleFileSystem#workingDir()} or {@link org.sonar.api.platform.ServerFileSystem#getTempDir}
*/
@Deprecated
public static File unzipToTempDir(File zip) throws IOException {
File toDir = TempFileUtils.createTempDirectory();
unzip(zip, toDir);
return toDir;
}
/**
* Unzip a file into a directory. The directory is created if it does not exist.
*
* @return the target directory
*/
public static File unzip(File zip, File toDir) throws IOException {
unzip(zip, toDir, new ZipEntryFilter() {
public boolean accept(ZipEntry entry) {
return true;
}
});
return toDir;
}
public static File unzip(File zip, File toDir, ZipEntryFilter filter) throws IOException {
if (!toDir.exists()) {
FileUtils.forceMkdir(toDir);
}
ZipFile zipFile = new ZipFile(zip);
try {
Enumeration<? extends ZipEntry> entries = zipFile.entries();
while (entries.hasMoreElements()) {
ZipEntry entry = entries.nextElement();
if (filter.accept(entry)) {
File to = new File(toDir, entry.getName());
if (entry.isDirectory()) {
if (!to.exists() && !to.mkdirs()) {
throw new IOException(ERROR_CREATING_DIRECTORY + to);
}
} else {
File parent = to.getParentFile();
if (parent != null && !parent.exists() && !parent.mkdirs()) {
throw new IOException(ERROR_CREATING_DIRECTORY + parent);
}
copy(zipFile, entry, to);
}
}
}
return toDir;
} finally {
zipFile.close();
}
}
private static void copy(ZipFile zipFile, ZipEntry entry, File to) throws IOException {
FileOutputStream fos = new FileOutputStream(to);
InputStream input = null;
try {
input = zipFile.getInputStream(entry);
IOUtils.copy(input, fos);
} finally {
IOUtils.closeQuietly(input);
IOUtils.closeQuietly(fos);
}
}
public static void zipDir(File dir, File zip) throws IOException {
OutputStream out = null;
ZipOutputStream zout = null;
try {
out = FileUtils.openOutputStream(zip);
zout = new ZipOutputStream(out);
zip(dir, zout);
} finally {
IOUtils.closeQuietly(zout);
IOUtils.closeQuietly(out);
}
}
private static void doZip(String entryName, InputStream in, ZipOutputStream out) throws IOException {
ZipEntry zentry = new ZipEntry(entryName);
out.putNextEntry(zentry);
IOUtils.copy(in, out);
out.closeEntry();
}
private static void doZip(String entryName, File file, ZipOutputStream out) throws IOException {
if (file.isDirectory()) {
entryName += '/';
ZipEntry zentry = new ZipEntry(entryName);
out.putNextEntry(zentry);
out.closeEntry();
File[] files = file.listFiles();
for (int i = 0, len = files.length; i < len; i++) {
doZip(entryName + files[i].getName(), files[i], out);
}
} else {
InputStream in = null;
try {
in = new BufferedInputStream(new FileInputStream(file));
doZip(entryName, in, out);
} finally {
IOUtils.closeQuietly(in);
}
}
}
private static void zip(File file, ZipOutputStream out) throws IOException {
for (File child : file.listFiles()) {
String name = child.getName();
doZip(name, child, out);
}
}
public interface ZipEntryFilter {
boolean accept(ZipEntry entry);
}
}
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