com.maverick.nio

Interface ProtocolEngine

All Known Implementing Classes:

TransportProtocol

public interface ProtocolEngine

This interface defines the contract for a protocol implementation. An instance of this interface is created for each socket connection.

Author:

Lee David Painter

Field Summary

Fields

Modifier and Type	Field and Description
static int	BY_APPLICATION Disconnect reason: The application disconnected

Method Summary

Modifier and Type	Method and Description
void	disconnect(int reason, String description) Disconnect the Engine
ProtocolContext	getContext()
SocketConnection	getSocketConnection() Get the SocketConnection for this connection.
boolean	isConnected() Is the protocol connected.
void	onSocketClose() The socket has closed.
void	onSocketConnect(SocketConnection connection) The socket is connected and the protocol can now start.
boolean	onSocketRead(ByteBuffer applicationData) Data has arrived on the socket.
SocketWriteCallback	onSocketWrite(ByteBuffer applicationData) The socket is ready for writing.
boolean	wantsToWrite() Determines whether the protocol wants to write to the socket.

Field Detail

BY_APPLICATION

static final int BY_APPLICATION

Disconnect reason: The application disconnected

See Also:

Constant Field Values

Method Detail

onSocketConnect

void onSocketConnect(SocketConnection connection)

The socket is connected and the protocol can now start.

Parameters:

connection - SocketConnection

onSocketClose

void onSocketClose()

The socket has closed.

onSocketRead

boolean onSocketRead(ByteBuffer applicationData)

Data has arrived on the socket.

Parameters:

applicationData - ByteBuffer

Returns:

boolean to determine if protocol wants to write to the socket

onSocketWrite

SocketWriteCallback onSocketWrite(ByteBuffer applicationData)

The socket is ready for writing.

Parameters:

applicationData - ByteBuffer

wantsToWrite

boolean wantsToWrite()

Determines whether the protocol wants to write to the socket. The value of this method determines the write state of the socket. Only return a true value when the protocol needs to write data to the socket.

Returns:

boolean

isConnected

boolean isConnected()

Is the protocol connected.

Returns:

boolean

getSocketConnection

SocketConnection getSocketConnection()

Get the SocketConnection for this connection.

Returns:

SocketConnection

disconnect

void disconnect(int reason,
                String description)

Disconnect the Engine

Parameters:

reason -

description -

getContext

ProtocolContext getContext()