org.slf4j.instrumentation
Class LogTransformer

java.lang.Object
  org.slf4j.instrumentation.LogTransformer

All Implemented Interfaces:

ClassFileTransformer

public class LogTransformer
extends Object
implements ClassFileTransformer

LogTransformer does the work of analyzing each class, and if appropriate add log statements to each method to allow logging entry/exit.

This class is based on the article Add Logging at Class Load Time with Java Instrumentation.

Nested Class Summary

static class

LogTransformer.Builder Builder provides a flexible way of configuring some of many options on the parent class instead of providing many constructors.

Method Summary

byte[]

transform(ClassLoader loader, String className, Class<?> clazz, ProtectionDomain domain, byte[] bytes)

Methods inherited from class java.lang.Object

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

Method Detail

transform

public byte[] transform(ClassLoader loader,
                        String className,
                        Class<?> clazz,
                        ProtectionDomain domain,
                        byte[] bytes)

Specified by:

transform in interface ClassFileTransformer