net.bytebuddy.dynamic

Class ClassFileLocator.AgentBased.ExtractionClassFileTransformer

java.lang.Object

net.bytebuddy.dynamic.ClassFileLocator.AgentBased.ExtractionClassFileTransformer

All Implemented Interfaces:

java.lang.instrument.ClassFileTransformer

Enclosing class:

ClassFileLocator.AgentBased

protected static class ClassFileLocator.AgentBased.ExtractionClassFileTransformer
extends java.lang.Object
implements java.lang.instrument.ClassFileTransformer

A non-operational class file transformer that remembers the binary format of a given class.

Field Summary

Fields

Modifier and Type	Field and Description
private byte[]	binaryRepresentation The binary representation of the looked-up class.
private java.lang.ClassLoader	classLoader The class loader that is expected to have loaded the looked-up a class.
private static byte[]	DO_NOT_TRANSFORM An indicator that an attempted class file transformation did not alter the handed class file.
private java.lang.String	typeName The name of the type to look up.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ExtractionClassFileTransformer(java.lang.ClassLoader classLoader, java.lang.String typeName) Creates a class file transformer for the purpose of extraction.

Method Summary

Modifier and Type	Method and Description
protected byte[]	getBinaryRepresentation() Returns the binary representation of the class file that was looked up.
byte[]	transform(java.lang.ClassLoader classLoader, java.lang.String internalName, java.lang.Class<?> redefinedType, java.security.ProtectionDomain protectionDomain, byte[] binaryRepresentation)

Methods inherited from class java.lang.Object

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

Field Detail

DO_NOT_TRANSFORM

private static final byte[] DO_NOT_TRANSFORM

An indicator that an attempted class file transformation did not alter the handed class file.

classLoader

private final java.lang.ClassLoader classLoader

The class loader that is expected to have loaded the looked-up a class.

typeName

private final java.lang.String typeName

The name of the type to look up.

binaryRepresentation

private volatile byte[] binaryRepresentation

The binary representation of the looked-up class.

Constructor Detail

ExtractionClassFileTransformer

protected ExtractionClassFileTransformer(java.lang.ClassLoader classLoader,
                                         java.lang.String typeName)

Creates a class file transformer for the purpose of extraction.

Parameters:

classLoader - The class loader that is expected to have loaded the looked-up a class.

typeName - The name of the type to look up.

Method Detail

transform

public byte[] transform(java.lang.ClassLoader classLoader,
                        java.lang.String internalName,
                        java.lang.Class<?> redefinedType,
                        java.security.ProtectionDomain protectionDomain,
                        byte[] binaryRepresentation)

Specified by:

transform in interface java.lang.instrument.ClassFileTransformer

getBinaryRepresentation

protected byte[] getBinaryRepresentation()

Returns the binary representation of the class file that was looked up. The returned array must never be modified.

Returns:

The binary representation of the class file or null if no such class file could be located.