Package jadex.bytecode

Class Proxy

java.lang.Object

jadex.bytecode.Proxy

public class Proxy
extends Object

Proxy class allows for generating proxy objects for interfaces and/or one class. Both sides are optional. Uses the InvocationHandler from standard Java interface proxy mechanism.

Field Summary

Fields

Modifier and Type	Field	Description
static final Map<jadex.common.Tuple2<ClassLoader,Set<Class<?>>>,Class<?>>	CLASSCACHE
static final AtomicInteger	COUNTER
static final Set<String>	OBJECTMETHODS

Constructor Summary

Constructors

Constructor	Description
Proxy()

Method Summary

Modifier and Type	Method	Description
protected static org.objectweb.asm.tree.MethodNode	genrateInvocationCode(org.objectweb.asm.tree.MethodNode m, String classname, Class<?> iface, ClassLoader loader)	Generate the code for delegating the call to the invocation handler.
static InvocationHandler	getInvocationHandler(Object proxy)	Get the invocation handler of a proxy.
static void	main(String[] args)	Main for testing.
static Object	newProxyInstance(ClassLoader loader, Class<?>[] ifaces, InvocationHandler handler)	Generate a proxy for an existing class.
static Object	newProxyInstance(ClassLoader loader, Class<?> clazz, Class<?>[] ifaces, InvocationHandler handler)	Generate a proxy for an existing class.

Methods inherited from class java.lang.Object

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

Field Details

OBJECTMETHODS

public static final Set<String> OBJECTMETHODS

COUNTER

public static final AtomicInteger COUNTER

CLASSCACHE

public static final Map<jadex.common.Tuple2<ClassLoader,Set<Class<?>>>,Class<?>> CLASSCACHE

Constructor Details

Proxy

public Proxy()

Method Details

getInvocationHandler

public static InvocationHandler getInvocationHandler(Object proxy)

Get the invocation handler of a proxy.

Parameters:

proxy -

Returns:

The handler

newProxyInstance

public static Object newProxyInstance(ClassLoader loader,
 Class<?>[] ifaces,
 InvocationHandler handler)

Generate a proxy for an existing class.

Parameters:

loader - The class loader.

ifaces - The interfaces (may contain one clazz).

handler - The invocation handler.

Returns:

The new proxy extending the clazz and implementing all interfaces.

newProxyInstance

public static Object newProxyInstance(ClassLoader loader,
 Class<?> clazz,
 Class<?>[] ifaces,
 InvocationHandler handler)

Generate a proxy for an existing class.

Parameters:

loader - The class loader.

clazz - The clazz.

ifaces - The interfaces.

handler - The invocation handler.

Returns:

The new proxy extending the clazz and implementing all interfaces.

genrateInvocationCode

protected static org.objectweb.asm.tree.MethodNode genrateInvocationCode(org.objectweb.asm.tree.MethodNode m,
 String classname,
 Class<?> iface,
 ClassLoader loader)
                                                                  throws Exception

Generate the code for delegating the call to the invocation handler.

Parameters:

m - The methodnode.

classname - The class name.

iface - The interface (null means the class is owner of the method)

Returns:

The new method node (or null).

Throws:

Exception

main

public static void main(String[] args)
                 throws Exception

Main for testing.

Throws:

Exception