com.newrelic.agent.instrumentation

Class AbstractImplementationClassTransformer

java.lang.Object

com.newrelic.agent.instrumentation.AbstractImplementationClassTransformer

All Implemented Interfaces:

StartableClassFileTransformer, java.lang.instrument.ClassFileTransformer

Direct Known Subclasses:

InterfaceImplementationClassTransformer

public abstract class AbstractImplementationClassTransformer
extends java.lang.Object
implements StartableClassFileTransformer

Field Summary

Fields

Modifier and Type	Field and Description
protected int	classreaderFlags
protected PointCutClassTransformer	classTransformer
protected java.lang.Class	interfaceToImplement
protected IAgentLogger	logger
protected java.lang.String	originalInterface
protected org.objectweb.asm.Type	originalInterfaceType

Constructor Summary

Constructors

Constructor and Description
AbstractImplementationClassTransformer(PointCutClassTransformer classTransformer, boolean enabled, java.lang.Class interfaceToImplement)
AbstractImplementationClassTransformer(PointCutClassTransformer classTransformer, boolean enabled, java.lang.Class interfaceToImplement, ClassMatcher classMatcher, ClassMatcher skipMatcher, java.lang.String originalInterfaceName)

Method Summary

Modifier and Type	Method and Description
protected abstract org.objectweb.asm.ClassVisitor	createClassVisitor(org.objectweb.asm.ClassReader cr, org.objectweb.asm.ClassWriter cw, java.lang.String className, java.lang.ClassLoader loader)
protected boolean	excludeClass(java.lang.String className)
protected int	getClassReaderFlags()
protected boolean	isGenericInterfaceSupportEnabled()
void	start(InstrumentationProxy instrumentation, boolean isRetransformSupported) Start method to be called after this transformer is added to Instrumentation.
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

Field Detail

logger

protected final IAgentLogger logger

classreaderFlags

protected final int classreaderFlags

classTransformer

protected final PointCutClassTransformer classTransformer

interfaceToImplement

protected final java.lang.Class interfaceToImplement

originalInterface

protected final java.lang.String originalInterface

originalInterfaceType

protected final org.objectweb.asm.Type originalInterfaceType

Constructor Detail

AbstractImplementationClassTransformer

public AbstractImplementationClassTransformer(PointCutClassTransformer classTransformer,
                                              boolean enabled,
                                              java.lang.Class interfaceToImplement,
                                              ClassMatcher classMatcher,
                                              ClassMatcher skipMatcher,
                                              java.lang.String originalInterfaceName)

AbstractImplementationClassTransformer

public AbstractImplementationClassTransformer(PointCutClassTransformer classTransformer,
                                              boolean enabled,
                                              java.lang.Class interfaceToImplement)

Method Detail

start

public void start(InstrumentationProxy instrumentation,
                  boolean isRetransformSupported)

Description copied from interface: StartableClassFileTransformer

Start method to be called after this transformer is added to Instrumentation.

Specified by:

start in interface StartableClassFileTransformer

transform

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

Specified by:

transform in interface java.lang.instrument.ClassFileTransformer

Throws:

java.lang.instrument.IllegalClassFormatException

excludeClass

protected boolean excludeClass(java.lang.String className)

isGenericInterfaceSupportEnabled

protected boolean isGenericInterfaceSupportEnabled()

getClassReaderFlags

protected int getClassReaderFlags()

createClassVisitor

protected abstract org.objectweb.asm.ClassVisitor createClassVisitor(org.objectweb.asm.ClassReader cr,
                                                                     org.objectweb.asm.ClassWriter cw,
                                                                     java.lang.String className,
                                                                     java.lang.ClassLoader loader)