Java Jar File Find getJarFile(final ClassLoader loader)

Description

get Jar File

License

Apache License

Declaration

public static JarFile getJarFile(final ClassLoader loader) 

Method Source Code

//package com.java2s;
/*//from   w w w  . j ava2s  .co m
 * Copyright (C) 2012 The Android Open Source Project
 *
 * 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.
 */

import java.io.IOException;

import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLDecoder;

import java.util.jar.JarFile;

public class Main {
    private static final String MANIFEST = "META-INF/MANIFEST.MF";

    public static JarFile getJarFile(final ClassLoader loader) {
        final URL resUrl = loader.getResource(MANIFEST);
        if (!resUrl.getProtocol().equals("jar")) {
            throw new RuntimeException("Should run as jar");
        }
        final String path = resUrl.getPath();
        if (!path.startsWith("file:")) {
            throw new RuntimeException("Unknown jar path: " + path);
        }
        final String jarPath = path.substring("file:".length(), path.indexOf('!'));
        try {
            return new JarFile(URLDecoder.decode(jarPath, "UTF-8"));
        } catch (UnsupportedEncodingException e) {
        } catch (IOException e) {
        }
        return null;
    }
}

Related

1. findJarsNamesInPath(String path)
2. getJarFile(@Nonnull Class clazz)
3. getJarFile(Class clazz)
4. getJarFile(Class clazz)
5. getJarFile(Class clazz)
6. getJarFile(String classPath)
7. getJarFileByResourceName(Class clazz, String resourceName)
8. getJarFolder(Class clazz)
9. getJarLocation()