org.slf4j.instrumentation
Class LogTransformer

java.lang.Object
  extended by org.slf4j.instrumentation.LogTransformer
All Implemented Interfaces:
java.lang.instrument.ClassFileTransformer

public class LogTransformer
extends java.lang.Object
implements java.lang.instrument.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(java.lang.ClassLoader loader, java.lang.String className, java.lang.Class<?> clazz, java.security.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(java.lang.ClassLoader loader,
                        java.lang.String className,
                        java.lang.Class<?> clazz,
                        java.security.ProtectionDomain domain,
                        byte[] bytes)
Specified by:
transform in interface java.lang.instrument.ClassFileTransformer


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