net.bytebuddy.agent

Class ByteBuddyAgent.AttachmentProvider.Accessor.Simple

java.lang.Object

net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider.Accessor.Simple

All Implemented Interfaces:

ByteBuddyAgent.AttachmentProvider.Accessor

Direct Known Subclasses:

ByteBuddyAgent.AttachmentProvider.Accessor.Simple.WithDirectAttachment, ByteBuddyAgent.AttachmentProvider.Accessor.Simple.WithExternalAttachment

Enclosing interface:

ByteBuddyAgent.AttachmentProvider.Accessor

public abstract static class ByteBuddyAgent.AttachmentProvider.Accessor.Simple
extends Object
implements ByteBuddyAgent.AttachmentProvider.Accessor

A simple implementation of an accessible accessor.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	ByteBuddyAgent.AttachmentProvider.Accessor.Simple.WithDirectAttachment A simple implementation of an accessible accessor that attaches using a virtual machine emulation that does not require external attachment.
protected static class	ByteBuddyAgent.AttachmentProvider.Accessor.Simple.WithExternalAttachment A simple implementation of an accessible accessor that allows for external attachment.

Nested classes/interfaces inherited from interface net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider.Accessor

ByteBuddyAgent.AttachmentProvider.Accessor.ExternalAttachment, ByteBuddyAgent.AttachmentProvider.Accessor.Simple, ByteBuddyAgent.AttachmentProvider.Accessor.Unavailable

Field Summary

Fields

Modifier and Type	Field and Description
protected Class<?>	virtualMachineType A VirtualMachine class.

Fields inherited from interface net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider.Accessor

VIRTUAL_MACHINE_TYPE_NAME, VIRTUAL_MACHINE_TYPE_NAME_J9

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Simple(Class<?> virtualMachineType) Creates a new simple accessor.

Method Summary

Modifier and Type	Method and Description
Class<?>	getVirtualMachineType() Returns a VirtualMachine class.
boolean	isAvailable() Determines if this accessor is applicable for the currently running JVM.
static ByteBuddyAgent.AttachmentProvider.Accessor	of(ClassLoader classLoader, File... classPath) Creates an accessor by reading the process id from the JMX runtime bean and by attempting to load the com.sun.tools.attach.VirtualMachine class from the provided class loader.
static ByteBuddyAgent.AttachmentProvider.Accessor	ofJ9() Creates an accessor by reading the process id from the JMX runtime bean and by attempting to load the com.ibm.tools.attach.VirtualMachine class from the provided class loader.

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider.Accessor

getExternalAttachment, isExternalAttachmentRequired

Field Detail

virtualMachineType

protected final Class<?> virtualMachineType

A VirtualMachine class.

Constructor Detail

Simple

protected Simple(Class<?> virtualMachineType)

Creates a new simple accessor.

Parameters:

virtualMachineType - A VirtualMachine class.

Method Detail

of

public static ByteBuddyAgent.AttachmentProvider.Accessor of(@MaybeNull
                                                            ClassLoader classLoader,
                                                            File... classPath)

Creates an accessor by reading the process id from the JMX runtime bean and by attempting to load the com.sun.tools.attach.VirtualMachine class from the provided class loader.

This accessor is supposed to work on any implementation of the OpenJDK or Oracle JDK.

Parameters:

classLoader - A class loader that is capable of loading the virtual machine type.

classPath - The class path required to load the virtual machine class.

Returns:

An appropriate accessor.

ofJ9

public static ByteBuddyAgent.AttachmentProvider.Accessor ofJ9()

Creates an accessor by reading the process id from the JMX runtime bean and by attempting to load the com.ibm.tools.attach.VirtualMachine class from the provided class loader.

This accessor is supposed to work on any implementation of IBM's J9.

Returns:

An appropriate accessor.

isAvailable

public boolean isAvailable()

Determines if this accessor is applicable for the currently running JVM.

Specified by:

isAvailable in interface ByteBuddyAgent.AttachmentProvider.Accessor

Returns:

true if this accessor is available.

getVirtualMachineType

public Class<?> getVirtualMachineType()

Returns a VirtualMachine class. This method must only be called for available accessors.

Specified by:

getVirtualMachineType in interface ByteBuddyAgent.AttachmentProvider.Accessor

Returns:

The virtual machine type.