ch.icosys.popjava.core.javaagent

Class POPJavaAgent

java.lang.Object

ch.icosys.popjava.core.javaagent.POPJavaAgent

All Implemented Interfaces:

java.lang.instrument.ClassFileTransformer

public final class POPJavaAgent
extends java.lang.Object
implements java.lang.instrument.ClassFileTransformer

POPJava Java Agent. This class intercepts the class file loading. TODO: Convert System.out.println to POPSystem.writeLog

Method Summary

Modifier and Type	Method and Description
void	addJar(java.lang.String file)
static POPJavaAgent	getInstance()
static void	premain(java.lang.String agentArgs, java.lang.instrument.Instrumentation inst) This method is called by the JVM before the main method is loaded.
byte[]	transform(java.lang.ClassLoader loader, java.lang.String className, java.lang.Class<?> classBeingRedefined, java.security.ProtectionDomain protectionDomain, byte[] classfileBuffer)

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static POPJavaAgent getInstance()

premain

public static void premain(java.lang.String agentArgs,
                           java.lang.instrument.Instrumentation inst)

This method is called by the JVM before the main method is loaded. It registers this class as the JavaAgent to be loaded to transform all POPJava classes loaded by the classloader.

Parameters:

agentArgs - arguments for the java agent

inst - the instrumentation

addJar

public void addJar(java.lang.String file)
            throws javassist.NotFoundException

Throws:

javassist.NotFoundException

transform

public byte[] transform(java.lang.ClassLoader loader,
                        java.lang.String className,
                        java.lang.Class<?> classBeingRedefined,
                        java.security.ProtectionDomain protectionDomain,
                        byte[] classfileBuffer)

Specified by:

transform in interface java.lang.instrument.ClassFileTransformer