Package net.bytebuddy.agent

Class VirtualMachine.ForHotSpot.Connection.OnPersistentByteChannel<T>

java.lang.Object

net.bytebuddy.agent.VirtualMachine.ForHotSpot.Connection.OnPersistentByteChannel<T>

Type Parameters:

T - The connection representation.

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, VirtualMachine.ForHotSpot.Connection

Direct Known Subclasses:

VirtualMachine.ForHotSpot.Connection.ForJnaPosixSocket

Enclosing interface:

VirtualMachine.ForHotSpot.Connection

public abstract static class VirtualMachine.ForHotSpot.Connection.OnPersistentByteChannel<T>
extends java.lang.Object
implements VirtualMachine.ForHotSpot.Connection

A connection that is represented by a byte channel that is persistent during communication.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private class	VirtualMachine.ForHotSpot.Connection.OnPersistentByteChannel.Response	A response of a persistent byte channel.

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

VirtualMachine.ForHotSpot.Connection.Factory, VirtualMachine.ForHotSpot.Connection.ForJnaPosixSocket, VirtualMachine.ForHotSpot.Connection.ForJnaSolarisDoor, VirtualMachine.ForHotSpot.Connection.ForJnaWindowsNamedPipe, VirtualMachine.ForHotSpot.Connection.OnPersistentByteChannel<T>

Field Summary

Fields

Modifier and Type	Field	Description
private static byte[]	BLANK	A blank line argument.

Constructor Summary

Constructors

Constructor	Description
OnPersistentByteChannel()

Method Summary

Modifier and Type	Method	Description
protected abstract void	close(T connection)	Closes the connection to the target VM.
protected abstract T	connect()	Creates a new connection to the target VM.
VirtualMachine.ForHotSpot.Connection.Response	execute(java.lang.String protocol, java.lang.String... argument)	Executes a command on the current connection.
protected abstract int	read(T connection, byte[] buffer)	Reads from the target VM.
protected abstract void	write(T connection, byte[] buffer)	Writes to the target VM.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.io.Closeable

close

Field Detail

BLANK

private static final byte[] BLANK

A blank line argument.

Constructor Detail

OnPersistentByteChannel

public OnPersistentByteChannel()

Method Detail

execute

public VirtualMachine.ForHotSpot.Connection.Response execute(java.lang.String protocol,
                                                             java.lang.String... argument)
                                                      throws java.io.IOException

Executes a command on the current connection.

Specified by:

execute in interface VirtualMachine.ForHotSpot.Connection

Parameters:

protocol - The target VMs protocol version for the attach API.

argument - The arguments to send to the target VM.

Returns:

The response of the target JVM.

Throws:

java.io.IOException - If an I/O error occurred.

connect

protected abstract T connect()
                      throws java.io.IOException

Creates a new connection to the target VM.

Returns:

Returns a new connection to the target VM.

Throws:

java.io.IOException - If an I/O exception occurs.

close

protected abstract void close(T connection)
                       throws java.io.IOException

Closes the connection to the target VM.

Parameters:

connection - The connection to close.

Throws:

java.io.IOException - If an I/O exception occurs.

write

protected abstract void write(T connection,
                              byte[] buffer)
                       throws java.io.IOException

Writes to the target VM.

Parameters:

connection - The connection to write to.

buffer - The buffer to write to.

Throws:

java.io.IOException - If an I/O exception occurs during writing.

read

protected abstract int read(T connection,
                            byte[] buffer)
                     throws java.io.IOException

Reads from the target VM.

Parameters:

connection - The connection to read from.

buffer - The buffer to store the result in.

Returns:

The number of byte that were read.

Throws:

java.io.IOException - If an I/O exception occurs.