Package 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

Nested Classes

Modifier and Type	Class	Description
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

Modifier and Type	Method	Description
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

Methods inherited from interface java.lang.instrument.ClassFileTransformer

transform

Method Details

transform

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

Specified by:

transform in interface ClassFileTransformer