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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.openejb.util;
import org.apache.openejb.loader.FileUtils;
import org.apache.openejb.loader.Files;
import org.apache.openejb.loader.IO;
import org.apache.openejb.loader.SystemInstance;
import org.apache.openejb.loader.Zips;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.channels.FileChannel;
import java.util.Properties;
/**
* @version $Rev$ $Date$
*/
public class JarExtractor {
public static final Logger logger = Logger.getInstance(LogCategory.OPENEJB_STARTUP_CONFIG, "org.apache.openejb.util.resources");
/**
* Extract the Jar file into an unpacked directory structure, and
* return the absolute pathname to the extracted directory.
*
* @param file Jar file to unpack
* @param pathname Context path name for web application
* @throws IllegalArgumentException if this is not a "jar:" URL
* @throws IOException if an input/output error was encountered
* during expansion
*/
public static File extract(final File file, final String pathname) throws IOException {
final Properties properties = SystemInstance.get().getProperties();
final String key = "tomee.unpack.dir";
File unpackDir = file.getParentFile();
if (properties.containsKey(key)) {
final FileUtils base = SystemInstance.get().getBase();
unpackDir = base.getDirectory(properties.getProperty(key), true);
}
File docBase = new File(unpackDir, pathname);
docBase = extract(file, docBase);
return docBase;
}
/**
* Extract the jar file into the specifiec destination directory. If the destination directory
* already exists, the jar will not be unpacked.
*
* @param file jar file to unpack
* @param destinationDir the directory in which the jar will be unpacked; must not exist
* @throws IOException if an input/output error was encountered during expansion
*/
public static File extract(final File file, File destinationDir) throws IOException {
if (destinationDir.exists()) {
if (destinationDir.lastModified() > file.lastModified()) {
// Ear file is already installed
// Unpacked dir is newer than archive
return destinationDir.getAbsoluteFile();
}
if (!deleteDir(destinationDir)) {
Files.deleteOnExit(destinationDir);
final File pf = destinationDir.getParentFile();
final String name = destinationDir.getName() + System.currentTimeMillis();
destinationDir = new File(pf, name);
destinationDir.deleteOnExit();
Files.deleteOnExit(destinationDir);
}
}
logger.info("Extracting jar: " + file.getAbsolutePath());
try {
Files.mkdirs(destinationDir);
} catch (final Files.FileRuntimeException e) {
throw new IOException("Failed to create: " + destinationDir);
}
try {
Zips.unzip(file, destinationDir);
} catch (final IOException e) {
// If something went wrong, delete extracted dir to keep things clean
Files.delete(destinationDir);
throw e;
}
// Return the absolute path to our new document base directory
logger.info("Extracted path: " + destinationDir.getAbsolutePath());
return destinationDir.getAbsoluteFile();
}
/**
* Copy the specified file or directory to the destination.
*
* @param src File object representing the source
* @param dest File object representing the destination
*/
public static boolean copyRecursively(final File src, final File dest) {
boolean result = true;
String[] files;
if (src.isDirectory()) {
files = src.list();
result = dest.mkdir();
} else {
files = new String[1];
files[0] = "";
}
if (files == null) {
files = new String[0];
}
for (int i = 0; i < files.length && result; i++) {
final File fileSrc = new File(src, files[i]);
final File fileDest = new File(dest, files[i]);
if (fileSrc.isDirectory()) {
result = copyRecursively(fileSrc, fileDest);
} else {
FileChannel ic = null;
FileChannel oc = null;
try {
ic = new FileInputStream(fileSrc).getChannel();
oc = new FileOutputStream(fileDest).getChannel();
ic.transferTo(0, ic.size(), oc);
} catch (final IOException e) {
logger.error("Copy failed: src: " + fileSrc + ", dest: " + fileDest, e);
result = false;
} finally {
IO.close(ic);
IO.close(oc);
}
}
}
return result;
}
/**
* Delete the specified directory, including all of its contents and
* subdirectories recursively.
*
* @param dir File object representing the directory to be deleted
*/
public static boolean delete(final File dir) {
return deleteDir(dir);
}
/**
* Delete the specified directory, including all of its contents and
* subdirectories recursively.
*
* @param dir File object representing the directory to be deleted
*/
public static boolean deleteDir(final File dir) {
if (dir == null) {
return true;
}
if (dir.isDirectory()) {
final File[] files = dir.listFiles();
if (files != null) {
for (final File file : files) {
deleteDir(file);
}
}
}
return dir.delete();
}
/**
* Extract the specified input stream into the specified directory, creating
* a file named from the specified relative path.
*
* @param input InputStream to be copied
* @param docBase Document base directory into which we are extracting
* @param name Relative pathname of the file to be created
* @return A handle to the extracted File
* @throws IOException if an input/output error occurs
*/
protected static File extract(final InputStream input, final File docBase, final String name)
throws IOException {
final File file = new File(docBase, name);
BufferedOutputStream output = null;
try {
output = new BufferedOutputStream(new FileOutputStream(file));
final byte[] buffer = new byte[2048];
while (true) {
final int n = input.read(buffer);
if (n <= 0) {
break;
}
output.write(buffer, 0, n);
}
} finally {
if (output != null) {
try {
output.close();
} catch (final IOException e) {
// Ignore
}
}
}
return file;
}
}
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