org.apache.openejb.util.JarUtils Maven / Gradle / Ivy
/*
* 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 java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.jar.JarInputStream;
import java.util.jar.JarOutputStream;
import org.apache.openejb.OpenEJBException;
/**
* @version $Rev: 1153797 $ $Date: 2011-08-04 02:09:44 -0700 (Thu, 04 Aug 2011) $
*/
public class JarUtils {
private static Messages messages = new Messages("org.apache.openejb.util.resources");
public static void addFileToJar(String jarFile, String file) throws OpenEJBException {
try {
JarInputStream jis = new JarInputStream(new FileInputStream(jarFile));
File tempJar = File.createTempFile("temp", "jar");
JarOutputStream jos = new JarOutputStream(new FileOutputStream(tempJar));
JarEntry nextJarEntry = null;
while ((nextJarEntry = jis.getNextJarEntry()) != null) {
jos.putNextEntry(nextJarEntry);
}
jis.close();
jos.putNextEntry(new JarEntry(file));
FileInputStream fis = new FileInputStream(file);
for (int c = fis.read(); c != -1; c = fis.read()) {
jos.write(c);
}
fis.close();
jos.close();
File oldJar = new File(jarFile);
oldJar.delete();
tempJar.renameTo(oldJar);
} catch (FileNotFoundException e) {
throw new OpenEJBException(messages.format("file.0003", file, jarFile, e.getMessage()), e);
} catch (IOException e) {
throw new OpenEJBException(messages.format("file.0003", file, jarFile, e.getMessage()), e);
}
}
@SuppressWarnings("unchecked")
public static JarFile getJarFile(String jarFile) throws OpenEJBException {
/*[1.1] Get the jar ***************/
JarFile jar = null;
try {
File file = new File(jarFile);
jar = new JarFile(file);
} catch (FileNotFoundException e) {
throw new OpenEJBException(messages.format("file.0001", jarFile, e.getLocalizedMessage()), e);
} catch (IOException e) {
throw new OpenEJBException(messages.format("file.0002", jarFile, e.getLocalizedMessage()), e);
}
return jar;
}
@SuppressWarnings("unchecked")
public static ClassLoader getContextClassLoader() {
return (ClassLoader) java.security.AccessController.doPrivileged(
new java.security.PrivilegedAction() {
public Object run() {
return Thread.currentThread().getContextClassLoader();
}
}
);
}
}