Package org.openjdk.jmc.agent.jfrlegacy.impl

Class JFRLegacyEventClassGenerator

java.lang.Object

org.openjdk.jmc.agent.jfrlegacy.impl.JFRLegacyEventClassGenerator

public class JFRLegacyEventClassGenerator
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private static final String	CLASS_NAME_DURATION_EVENT
private static final String	CLASS_NAME_INSTANT_EVENT
private static final String	CLASS_NAME_TIMED_EVENT

Constructor Summary

Constructors

Constructor	Description
JFRLegacyEventClassGenerator()

Method Summary

Modifier and Type	Method	Description
private static void	createField(org.objectweb.asm.ClassWriter cw, JFRTransformDescriptor td, org.objectweb.asm.Type type)
private static void	createField(org.objectweb.asm.ClassWriter cw, JFRTransformDescriptor td, Attribute attribute, org.objectweb.asm.Type type)
private static void	generateAttributeFields(org.objectweb.asm.ClassWriter cw, JFRTransformDescriptor td, Class<?> classBeingRedefined)
private static void	generateClassAnnotations(org.objectweb.asm.ClassWriter cw, JFRTransformDescriptor td)
private static void	generateClinit(org.objectweb.asm.ClassWriter cw, String className, String parameterizedClassName)
static byte[]	generateEventClass(JFRTransformDescriptor td, Class<?> classBeingRedefined)	Generates an event class.
private static void	generateInit(org.objectweb.asm.ClassWriter cw, String className, String parameterizedClassName)
private static void	generateTokenField(org.objectweb.asm.ClassWriter cw)
private static String	getEventTypeName(JFRLegacyEventType eventType)
private static String	getFieldType(org.objectweb.asm.Type type)

Methods inherited from class java.lang.Object

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

Field Details

CLASS_NAME_INSTANT_EVENT

private static final String CLASS_NAME_INSTANT_EVENT

See Also:

• Constant Field Values

CLASS_NAME_DURATION_EVENT

private static final String CLASS_NAME_DURATION_EVENT

See Also:

• Constant Field Values

CLASS_NAME_TIMED_EVENT

private static final String CLASS_NAME_TIMED_EVENT

See Also:

• Constant Field Values

Constructor Details

JFRLegacyEventClassGenerator

public JFRLegacyEventClassGenerator()

Method Details

generateEventClass

public static byte[] generateEventClass(JFRTransformDescriptor td,
 Class<?> classBeingRedefined)
                                 throws Exception

Generates an event class.

Parameters:

td - the transform descriptor describing the transform.

Returns:

returns the byte code for the generated class.

Throws:

Exception - if the event class could not be generated.

generateAttributeFields

private static void generateAttributeFields(org.objectweb.asm.ClassWriter cw,
 JFRTransformDescriptor td,
 Class<?> classBeingRedefined)
                                     throws IllegalSyntaxException

Throws:

IllegalSyntaxException

createField

private static void createField(org.objectweb.asm.ClassWriter cw,
 JFRTransformDescriptor td,
 Attribute attribute,
 org.objectweb.asm.Type type)

createField

private static void createField(org.objectweb.asm.ClassWriter cw,
 JFRTransformDescriptor td,
 org.objectweb.asm.Type type)

getFieldType

private static String getFieldType(org.objectweb.asm.Type type)

generateInit

private static void generateInit(org.objectweb.asm.ClassWriter cw,
 String className,
 String parameterizedClassName)

generateClinit

private static void generateClinit(org.objectweb.asm.ClassWriter cw,
 String className,
 String parameterizedClassName)

generateTokenField

private static void generateTokenField(org.objectweb.asm.ClassWriter cw)

generateClassAnnotations

private static void generateClassAnnotations(org.objectweb.asm.ClassWriter cw,
 JFRTransformDescriptor td)

getEventTypeName

private static String getEventTypeName(JFRLegacyEventType eventType)