com.newrelic.agent.util.asm

Class Utils

java.lang.Object

com.newrelic.agent.util.asm.Utils

public class Utils
extends java.lang.Object

Method Summary

Modifier and Type	Method and Description
static java.lang.String	asString(org.objectweb.asm.tree.MethodNode method)
static org.objectweb.asm.ClassReader	getClassReaderFromResource(java.lang.String internalClassName, java.net.URL resource)
static java.net.URL	getClassResource(java.lang.ClassLoader loader, java.lang.String internalClassName)
static java.net.URL	getClassResource(java.lang.ClassLoader loader, org.objectweb.asm.Type type)
static java.lang.String	getClassResourceName(java.lang.Class<?> clazz)
static java.lang.String	getClassResourceName(java.lang.String internalName)
static int	getFirstLocal(int access, org.objectweb.asm.commons.Method method) Returns the index of the first local variable of a method after the "special" local variables like 'this' and the method arguments.
static boolean	isJdkProxy(byte[] classBytes) This is here for testing.
static boolean	isJdkProxy(org.objectweb.asm.ClassReader reader) Returns true if the input class bytes are those of a proxy.
static boolean	isPrimitiveType(java.lang.String type) Returns true if the given type is a java primitive.
static void	print(byte[] bytes)
static void	print(byte[] bytes, java.io.PrintWriter pw)
static org.objectweb.asm.ClassReader	readClass(java.lang.Class<?> theClass) Returns a ClassReader for the given class by trying to load the bytes of the class through its classloader.
static org.objectweb.asm.ClassReader	readClass(java.lang.ClassLoader loader, java.lang.String internalClassName)

Methods inherited from class java.lang.Object

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

Method Detail

isJdkProxy

public static boolean isJdkProxy(byte[] classBytes)

This is here for testing. Generally you should already have a classreader and therefore can call the other isProxy method.

Parameters:

classBytes - The bytes for the class.

Returns:

True if the class is a proxy, else false.

isJdkProxy

public static boolean isJdkProxy(org.objectweb.asm.ClassReader reader)

Returns true if the input class bytes are those of a proxy.

Parameters:

reader - Reader with the bytes.

Returns:

True if the input bytes are from a proxy class, else false.

readClass

public static org.objectweb.asm.ClassReader readClass(java.lang.Class<?> theClass)
                                               throws java.io.IOException,
                                                      BenignClassReadException

Returns a ClassReader for the given class by trying to load the bytes of the class through its classloader.

Throws:

java.io.IOException

BenignClassReadException

readClass

public static org.objectweb.asm.ClassReader readClass(java.lang.ClassLoader loader,
                                                      java.lang.String internalClassName)
                                               throws java.io.IOException

Throws:

java.io.IOException

getClassReaderFromResource

public static org.objectweb.asm.ClassReader getClassReaderFromResource(java.lang.String internalClassName,
                                                                       java.net.URL resource)
                                                                throws java.io.IOException

Throws:

java.io.IOException

getClassResourceName

public static java.lang.String getClassResourceName(java.lang.String internalName)

getClassResourceName

public static java.lang.String getClassResourceName(java.lang.Class<?> clazz)

getClassResource

public static java.net.URL getClassResource(java.lang.ClassLoader loader,
                                            org.objectweb.asm.Type type)

getClassResource

public static java.net.URL getClassResource(java.lang.ClassLoader loader,
                                            java.lang.String internalClassName)

print

public static void print(byte[] bytes)

asString

public static java.lang.String asString(org.objectweb.asm.tree.MethodNode method)

print

public static void print(byte[] bytes,
                         java.io.PrintWriter pw)

isPrimitiveType

public static boolean isPrimitiveType(java.lang.String type)

Returns true if the given type is a java primitive.

getFirstLocal

public static int getFirstLocal(int access,
                                org.objectweb.asm.commons.Method method)

Returns the index of the first local variable of a method after the "special" local variables like 'this' and the method arguments.