com.google.testing.instrumentation
Class InstrumentedClassLoader

java.lang.Object
  java.lang.ClassLoader
      com.google.testing.instrumentation.InstrumentedClassLoader

public final class InstrumentedClassLoader
extends ClassLoader

A custom ClassLoader that performs byte-code instrumentation on all loaded classes.

Author:

alasdair.mackintosh@gmail.com (Alasdair Mackintosh)

Constructor Summary

InstrumentedClassLoader(Instrumenter instrumenter)
Creates a new instrumented class loader using the given Instrumenter.

Method Summary

Class<?>	findClass(String className)
Class<?>	getExpectedClass(String name) Loads a class, and throws an IllegalArgumentException if the class cannot be loaded.
protected Class<?>	loadClass(String name, boolean resolve)

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findLibrary, findLoadedClass, findResource, findResources, findSystemClass, getPackage, getPackages, getParent, getResource, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Constructor Detail

InstrumentedClassLoader

public InstrumentedClassLoader(Instrumenter instrumenter)

Creates a new instrumented class loader using the given Instrumenter. All classes loaded by this loader will have their byte-code passed through the Instrumenter.instrument(java.lang.String, byte[]) method.

Parameters:

instrumenter - the instrumenter

Method Detail

getExpectedClass

public Class<?> getExpectedClass(String name)

Loads a class, and throws an IllegalArgumentException if the class cannot be loaded. Useful for classes which we expect to be able to find, e.g. for currently loaded classes that are being reloaded by this InstrumentedClassLoader.

Parameters:

name - the full name of the class

Returns:

the loaded class

loadClass

protected Class<?> loadClass(String name,
                             boolean resolve)
                      throws ClassNotFoundException

Overrides:

loadClass in class ClassLoader

Throws:

ClassNotFoundException

findClass

public Class<?> findClass(String className)
                   throws ClassNotFoundException

Overrides:

findClass in class ClassLoader

Throws:

ClassNotFoundException