proguard.io.util

Class IOUtil

java.lang.Object

proguard.io.util.IOUtil

public class IOUtil
extends java.lang.Object

This utility class provides methods to read the classes in jar, zips, aars into a ClassPool and write a ClassPool to a jar.

Method Summary

Modifier and Type	Method and Description
static ClassPool	read(java.lang.String fileName, boolean isLibrary) Reads the classes from the specified jar file and returns them as a class pool.
static ClassPool	read(java.lang.String fileName, java.lang.String classNameFilter, boolean isLibrary, java.util.function.BiFunction<DataEntryReader,ClassPoolFiller,DataEntryReader> extraDataEntryReader) Reads the classes from the specified jar file and returns them as a class pool.
static void	writeJar(ClassPool programClassPool, java.lang.String outputJarFileName) Writes the classes from the given class pool to a specified jar.
static void	writeJar(ClassPool programClassPool, java.lang.String outputJarFileName, java.lang.String mainClassName) 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

Method Detail

read

public static ClassPool read(java.lang.String fileName,
                             boolean isLibrary)
                      throws java.io.IOException

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

Parameters:

fileName - the name of the 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:

java.io.IOException

read

public static ClassPool read(java.lang.String fileName,
                             java.lang.String classNameFilter,
                             boolean isLibrary,
                             java.util.function.BiFunction<DataEntryReader,ClassPoolFiller,DataEntryReader> extraDataEntryReader)
                      throws java.io.IOException

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

Parameters:

fileName - the name of the file.

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

extraDataEntryReader - Optionally provide a function that wraps the reader in another reader.

Returns:

a new class pool with the read classes.

Throws:

java.io.IOException

writeJar

public static void writeJar(ClassPool programClassPool,
                            java.lang.String outputJarFileName)
                     throws java.io.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:

java.io.IOException

writeJar

public static void writeJar(ClassPool programClassPool,
                            java.lang.String outputJarFileName,
                            java.lang.String mainClassName)
                     throws java.io.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:

java.io.IOException