net.bytebuddy.agent

Class VirtualMachine.ForHotSpot.OnUnix

java.lang.Object

net.bytebuddy.agent.VirtualMachine.ForHotSpot

net.bytebuddy.agent.VirtualMachine.ForHotSpot.OnUnix

All Implemented Interfaces:

VirtualMachine

Enclosing class:

VirtualMachine.ForHotSpot

public static class VirtualMachine.ForHotSpot.OnUnix
extends VirtualMachine.ForHotSpot

A virtual machine implementation for a HotSpot VM running on Unix.

Nested Class Summary

Nested classes/interfaces inherited from class net.bytebuddy.agent.VirtualMachine.ForHotSpot

VirtualMachine.ForHotSpot.OnUnix

Nested classes/interfaces inherited from interface net.bytebuddy.agent.VirtualMachine

VirtualMachine.ForHotSpot

Field Summary

Fields inherited from class net.bytebuddy.agent.VirtualMachine.ForHotSpot

processId

Constructor Summary

Constructors

Constructor and Description
OnUnix(String processId, Object socket, int attempts, long pause, long timeout, TimeUnit timeUnit) Creates a new VM implementation for a HotSpot VM running on Unix.

Method Summary

Modifier and Type	Method and Description
static Class<?>	assertAvailability() Asserts the availability of this virtual machine implementation.
static VirtualMachine	attach(String processId) Attaches to the supplied VM process.
protected void	connect() Connects to the target VM.
void	detach() Detaches this virtual machine representation.
int	read(byte[] buffer) Reads from the communication channel.
void	write(byte[] buffer) Writes to the communication channel.

Methods inherited from class net.bytebuddy.agent.VirtualMachine.ForHotSpot

loadAgent

Methods inherited from class java.lang.Object

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

Constructor Detail

OnUnix

public OnUnix(String processId,
              Object socket,
              int attempts,
              long pause,
              long timeout,
              TimeUnit timeUnit)

Creates a new VM implementation for a HotSpot VM running on Unix.

Parameters:

processId - The process id of the target VM.

socket - The Unix socket to use for communication.

attempts - The number of attempts to connect.

pause - The pause time between two VMs.

timeout - The socket timeout.

timeUnit - The time unit of the pause time.

Method Detail

assertAvailability

public static Class<?> assertAvailability()
                                   throws Throwable

Asserts the availability of this virtual machine implementation. If the Unix socket library is missing or if this VM does not support Unix socket communication, a Throwable is thrown.

Returns:

This virtual machine type.

Throws:

Throwable - If this attachment method is not available.

attach

public static VirtualMachine attach(String processId)
                             throws IOException

Attaches to the supplied VM process.

Parameters:

processId - The process id of the target VM.

Returns:

An appropriate virtual machine implementation.

Throws:

IOException - If an I/O exception occurs.

connect

protected void connect()
                throws IOException

Connects to the target VM.

Specified by:

connect in class VirtualMachine.ForHotSpot

Throws:

IOException - If an I/O exception occurs.

read

public int read(byte[] buffer)
         throws IOException

Reads from the communication channel.

Specified by:

read in class VirtualMachine.ForHotSpot

Parameters:

buffer - The buffer to read into.

Returns:

The amount of bytes read.

Throws:

IOException - If an I/O exception occurs.

write

public void write(byte[] buffer)
           throws IOException

Writes to the communication channel.

Specified by:

write in class VirtualMachine.ForHotSpot

Parameters:

buffer - The buffer to write from.

Throws:

IOException - If an I/O exception occurs.

detach

public void detach()
            throws IOException

Detaches this virtual machine representation.

Throws:

IOException - If an I/O exception occurs.