net.md_5.specialsource

Class Jar

java.lang.Object

net.md_5.specialsource.Jar

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class Jar
extends java.lang.Object
implements java.io.Closeable

This class wraps one or more JarFiles enabling quick access to the jar's main class, as well as the ability to get the InputStream of a class file, and speedy lookups to see if the jar contains the specified class.

Constructor Summary

Constructors

Constructor and Description
Jar()

Method Summary

Modifier and Type	Method and Description
void	close() Closes all jar files in this Jar
boolean	containsClass(java.lang.String clazz) Check if this jar contains the given class.
boolean	containsResource(java.lang.String name) Check if this jar contains the given resource.
java.io.InputStream	getClass(java.lang.String clazz) Takes the internal name of a class (/).
java.util.Set<java.lang.String>	getEntryNames() Get all file names in the jar, (archive order is preserved).
org.objectweb.asm.tree.ClassNode	getNode(java.lang.String clazz) Get the ClassNode object corresponding to this class.
java.io.InputStream	getResource(java.lang.String name) Get the stream for a file in this jar.
static Jar	init(java.io.File file) Read a new jar instance from the given file.
static Jar	init(java.util.List<java.io.File> files) Read a new jar instance from the given list of files.

Methods inherited from class java.lang.Object

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

Constructor Detail

Jar

public Jar()

Method Detail

containsClass

public boolean containsClass(java.lang.String clazz)

Check if this jar contains the given class. Takes the internal name of a class (/).

Parameters:

clazz -

Returns:

containsResource

public boolean containsResource(java.lang.String name)

Check if this jar contains the given resource.

Parameters:

name - The name of the resource

Returns:

true Whether a resource with the given name exists

getResource

public java.io.InputStream getResource(java.lang.String name)
                                throws java.io.IOException

Get the stream for a file in this jar.

Parameters:

name -

Returns:

Throws:

java.io.IOException

getClass

public java.io.InputStream getClass(java.lang.String clazz)
                             throws java.io.IOException

Takes the internal name of a class (/).

Parameters:

clazz -

Returns:

Throws:

java.io.IOException

getNode

public org.objectweb.asm.tree.ClassNode getNode(java.lang.String clazz)

Get the ClassNode object corresponding to this class. Takes the internal name of a class (/)

Parameters:

clazz -

Returns:

getEntryNames

public java.util.Set<java.lang.String> getEntryNames()

Get all file names in the jar, (archive order is preserved).

Returns:

init

public static Jar init(java.io.File file)
                throws java.io.IOException

Read a new jar instance from the given file.

Parameters:

file -

Returns:

Throws:

java.io.IOException

init

public static Jar init(java.util.List<java.io.File> files)
                throws java.io.IOException

Read a new jar instance from the given list of files.

Parameters:

files -

Returns:

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Closes all jar files in this Jar

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Throws:

java.io.IOException - if an I/O error has occurred

See Also:

Closeable