Package proguard.examples

Class JarUtil

java.lang.Object

proguard.examples.JarUtil

public class JarUtil
extends Object

This utility class provides methods to read and write the classes in jars.

Constructor Summary

Constructors

Constructor	Description
JarUtil()

Method Summary

Modifier and Type	Method	Description
static ClassPool	readJar(String jarFileName, boolean isLibrary)	Reads the classes from the specified jar file and returns them as a class pool.
static ClassPool	readJar(String jarFileName, String classNameFilter, boolean isLibrary)	Reads the classes from the specified jar file and returns them as a class pool.
static void	writeJar(ClassPool programClassPool, String outputJarFileName)	Writes the classes from the given class pool to a specified jar.

Methods inherited from class java.lang.Object

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

Constructor Details

JarUtil

public JarUtil()

Method Details

readJar

public static ClassPool readJar(String jarFileName,
 boolean isLibrary)
                         throws IOException

Reads the classes from the specified jar file and returns them as a class pool.

Parameters:

jarFileName - the name of the jar file or jmod file.

isLibrary - specifies whether classes should be represented as ProgramClass instances (for processing) or LibraryClass instances (more compact).

Returns:

a new class pool with the read classes.

Throws:

IOException

readJar

public static ClassPool readJar(String jarFileName,
 String classNameFilter,
 boolean isLibrary)
                         throws IOException

Reads the classes from the specified jar file and returns them as a class pool.

Parameters:

jarFileName - the name of the jar file or jmod file.

isLibrary - specifies whether classes should be represented as ProgramClass instances (for processing) or LibraryClass instances (more compact).

Returns:

a new class pool with the read classes.

Throws:

IOException

writeJar

public static void writeJar(ClassPool programClassPool,
 String outputJarFileName)
                     throws IOException

Writes the classes from the given class pool to a specified jar.

Parameters:

programClassPool - the classes to write.

outputJarFileName - the name of the output jar file.

Throws:

IOException