org.codehaus.classworlds

Class UberJarRealmClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.codehaus.classworlds.RealmClassLoader

org.codehaus.classworlds.UberJarRealmClassLoader

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class UberJarRealmClassLoader
extends RealmClassLoader

Classloader for ClassRealms.

Loads classes from an "uberjar".

Version:

$Id: UberJarRealmClassLoader.java 126 2006-01-12 04:17:51Z $

Author:

bob mcwhirter

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.Map	classIndex
private java.util.Map	jarIndexes
private java.util.List	urls

Fields inherited from class org.codehaus.classworlds.RealmClassLoader

realm

Constructor Summary

Constructors

Constructor and Description
UberJarRealmClassLoader(DefaultClassRealm realm)

Method Summary

Methods

Modifier and Type	Method and Description
void	addConstituent(java.net.URL constituent) Add a constituent to this realm for locating classes.
private void	buildIndexForJar(java.net.URL inUrl)
protected byte[]	findClassInDirectoryUrl(java.net.URL url, java.lang.String path)
protected byte[]	findClassInJarStream(java.net.URL inUrl, java.lang.String path)
java.net.URL	findResource(java.lang.String name) Find a resource within this ClassLoader only (don't delegate to the parent).
protected java.net.URL	findResourceInDirectoryUrl(java.net.URL inUrl, java.lang.String path)
protected java.net.URL	findResourceInJarStream(java.net.URL inUrl, java.lang.String path)
java.util.Enumeration	findResourcesDirect(java.lang.String name) Find resources from this ClassLoader, and don't search the realm.
java.lang.Class	loadClassDirect(java.lang.String className) Load a class directly from this classloader without defering through any other ClassRealm.
private byte[]	readStream(java.io.InputStream in)

Methods inherited from class org.codehaus.classworlds.RealmClassLoader

findResources, getBytesToEndOfStream, getRealm, getResource, getResourceDirect, getURLs, loadClass

Methods inherited from class java.net.URLClassLoader

addURL, close, definePackage, findClass, getPermissions, getResourceAsStream, newInstance, newInstance

Methods inherited from class java.security.SecureClassLoader

defineClass, defineClass

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findLibrary, findLoadedClass, findSystemClass, getClassLoadingLock, getPackage, getPackages, getParent, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, registerAsParallelCapable, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Field Detail

classIndex

private java.util.Map classIndex

urls

private java.util.List urls

jarIndexes

private java.util.Map jarIndexes

Constructor Detail

UberJarRealmClassLoader

public UberJarRealmClassLoader(DefaultClassRealm realm)

Method Detail

addConstituent

public void addConstituent(java.net.URL constituent)

Description copied from class: RealmClassLoader

Add a constituent to this realm for locating classes. If the url definition ends in .class its a BytesURLStreamHandler so use defineClass insead. addURL is still called for byte[] even though it has no affect and we use defineClass instead, this is for consistentency and to allow access to the class with getURLs()

Overrides:

addConstituent in class RealmClassLoader

Parameters:

constituent - URL to contituent jar or directory.

buildIndexForJar

private void buildIndexForJar(java.net.URL inUrl)

loadClassDirect

public java.lang.Class loadClassDirect(java.lang.String className)
                                throws java.lang.ClassNotFoundException

Load a class directly from this classloader without defering through any other ClassRealm.

Overrides:

loadClassDirect in class RealmClassLoader

Parameters:

className - The name of the class to load.

Returns:

The loaded class.

Throws:

java.lang.ClassNotFoundException - If the class could not be found.

findResource

public java.net.URL findResource(java.lang.String name)

Description copied from class: RealmClassLoader

Find a resource within this ClassLoader only (don't delegate to the parent).

Overrides:

findResource in class RealmClassLoader

Returns:

The resource.

findResourcesDirect

public java.util.Enumeration findResourcesDirect(java.lang.String name)

Description copied from class: RealmClassLoader

Find resources from this ClassLoader, and don't search the realm. Otherwise we'd recurse indefinitely.

Overrides:

findResourcesDirect in class RealmClassLoader

Returns:

The resource.

findResourceInJarStream

protected java.net.URL findResourceInJarStream(java.net.URL inUrl,
                                   java.lang.String path)

findResourceInDirectoryUrl

protected java.net.URL findResourceInDirectoryUrl(java.net.URL inUrl,
                                      java.lang.String path)

findClassInJarStream

protected byte[] findClassInJarStream(java.net.URL inUrl,
                          java.lang.String path)

findClassInDirectoryUrl

protected byte[] findClassInDirectoryUrl(java.net.URL url,
                             java.lang.String path)

readStream

private byte[] readStream(java.io.InputStream in)
                   throws java.io.IOException

Throws:

java.io.IOException