at.chrl.rebellion

Class ScriptClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

at.chrl.rebellion.ScriptClassLoader

All Implemented Interfaces:

Closeable, AutoCloseable

Direct Known Subclasses:

ScriptClassLoaderImpl

public abstract class ScriptClassLoader
extends URLClassLoader

Abstract class loader that should be extended by child classloaders. If needed, this class should wrap another classloader.

Author:

SoulKeeper

Constructor Summary

Constructors

Constructor and Description
ScriptClassLoader(URL[] urls) Just for compatibility with URLClassLoader
ScriptClassLoader(URL[] urls, ClassLoader parent) Just for compatibility with URLClassLoader
ScriptClassLoader(URL[] urls, ClassLoader parent, URLStreamHandlerFactory factory) Just for compatibility with URLClassLoader

Method Summary

Modifier and Type	Method and Description
void	addJarFile(File file) Adds library to this classloader, it shuould be jar file
abstract byte[]	getByteCode(String className) Returns bytecode for given className.
abstract Set<String>	getCompiledClasses() Retuns unmodifiable set of class names that were compiled
abstract Class<?>	getDefinedClass(String name) Returns cached class instance for give name or null if is not cached yet
protected Set<String>	getLibraryClassNames()
URL	getResource(String name)
Class<?>	loadClass(String name) Loads class from library, parent or compiled
abstract void	setDefinedClass(String name, Class<?> clazz) Sets defined class into cache

Methods inherited from class java.net.URLClassLoader

addURL, close, definePackage, findClass, findResource, findResources, getPermissions, getResourceAsStream, getURLs, 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

Constructor Detail

ScriptClassLoader

public ScriptClassLoader(URL[] urls,
                         ClassLoader parent)

Just for compatibility with URLClassLoader

Parameters:

urls - list of urls

parent - parent classloader

ScriptClassLoader

public ScriptClassLoader(URL[] urls)

Just for compatibility with URLClassLoader

Parameters:

urls - list of urls

ScriptClassLoader

public ScriptClassLoader(URL[] urls,
                         ClassLoader parent,
                         URLStreamHandlerFactory factory)

Just for compatibility with URLClassLoader

Parameters:

urls - list of urls

parent - parent classloader

factory - URLStreamHandlerFactory

Method Detail

addJarFile

public void addJarFile(File file)
                throws IOException

Adds library to this classloader, it shuould be jar file

Parameters:

file - jar file

Throws:

IOException - if can't add library

getResource

public URL getResource(String name)

Overrides:

getResource in class ClassLoader

loadClass

public Class<?> loadClass(String name)
                   throws ClassNotFoundException

Loads class from library, parent or compiled

Overrides:

loadClass in class ClassLoader

Parameters:

name - class to load

Returns:

loaded class

Throws:

ClassNotFoundException - if class not found

getLibraryClassNames

protected Set<String> getLibraryClassNames()

getCompiledClasses

public abstract Set<String> getCompiledClasses()

Retuns unmodifiable set of class names that were compiled

Returns:

unmodifiable set of class names that were compiled

getByteCode

public abstract byte[] getByteCode(String className)

Returns bytecode for given className. Array is copy of actual bytecode, so modifications will not harm.

Parameters:

className - class name

Returns:

bytecode

getDefinedClass

public abstract Class<?> getDefinedClass(String name)

Returns cached class instance for give name or null if is not cached yet

Parameters:

name - class name

Returns:

cached class instance or null

setDefinedClass

public abstract void setDefinedClass(String name,
                                     Class<?> clazz)
                              throws IllegalArgumentException

Sets defined class into cache

Parameters:

name - class name

clazz - class object

Throws:

IllegalArgumentException - if class was not loaded by this class loader