de.cismet.commons.utils

Class JarUtils

java.lang.Object

de.cismet.commons.utils.JarUtils

public class JarUtils
extends Object

DOCUMENT ME!

Version:

$Revision$, $Date$

Author:

Gilles Baatz

Constructor Summary

Constructors

Constructor and Description
JarUtils()

Method Summary

Modifier and Type	Method and Description
static boolean	checkIfJarWithManifest(File file) A simple check if a file is a Jar and contains the META-INF/MANIFEST.MF file.
static boolean	isSigned(File toSign, String keystorePath, String keystorePass, String alias) This method checks every single class of the given jar, but classes only, no other resources.
static void	unsignJar(File file) Removes the DSA, RSA and SF files from the META-INF folder from a zip file.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JarUtils

public JarUtils()

Method Detail

checkIfJarWithManifest

public static boolean checkIfJarWithManifest(File file)
                                      throws IOException

A simple check if a file is a Jar and contains the META-INF/MANIFEST.MF file.

Parameters:

file - DOCUMENT ME!

Returns:

DOCUMENT ME!

Throws:

IOException - DOCUMENT ME!

unsignJar

public static void unsignJar(File file)

Removes the DSA, RSA and SF files from the META-INF folder from a zip file.

Warning: Do not use with Java 6 or older.

Parameters:

file - DOCUMENT ME!

isSigned

public static boolean isSigned(File toSign,
                               String keystorePath,
                               String keystorePass,
                               String alias)

This method checks every single class of the given jar, but classes only, no other resources. It validates whether all classes have been signed with a signature, defined via the arguments keystorePath and alias.

Parameters:

toSign - the jar file to verify

keystorePath - DOCUMENT ME!

keystorePass - DOCUMENT ME!

alias - DOCUMENT ME!

Returns:

true if checkSignature is true and all class files of the given jar are signed with the specified signature, false in any other case

Throws:

IllegalArgumentException - DOCUMENT ME!