org.apache.catalina.tribes.transport.nio
Class NioSender

java.lang.Object
  org.apache.catalina.tribes.transport.AbstractSender
      org.apache.catalina.tribes.transport.nio.NioSender

All Implemented Interfaces:

DataSender

public class NioSender
extends AbstractSender

This class is NOT thread safe and should never be used with more than one thread at a time This is a state machine, handled by the process method States are: - NOT_CONNECTED -> connect() -> CONNECTED - CONNECTED -> setMessage() -> READY TO WRITE - READY_TO_WRITE -> write() -> READY TO WRITE | READY TO READ - READY_TO_READ -> read() -> READY_TO_READ | TRANSFER_COMPLETE - TRANSFER_COMPLETE -> CONNECTED

Version:

1.0

Author:

Filip Hanik

Field Summary

protected XByteBuffer	ackbuf
protected boolean	complete
protected boolean	connecting
protected byte[]	current
protected DatagramChannel	dataChannel
protected ByteBuffer	readbuf
protected int	remaining
protected Selector	selector
protected SocketChannel	socketChannel
protected ByteBuffer	writebuf

Constructor Summary

NioSender()

Method Summary

void	connect() connect - blocking in this operation
void	disconnect() disconnect
byte[]	getMessage()
Selector	getSelector()
boolean	isComplete()
boolean	process(SelectionKey key, boolean waitForAck) State machine to send data
protected boolean	read(SelectionKey key)
void	reset()
void	setComplete(boolean complete)
void	setMessage(byte[] data) sendMessage
void	setMessage(byte[] data, int offset, int length)
void	setSelector(Selector selector)
protected boolean	write(SelectionKey key)

Methods inherited from class org.apache.catalina.tribes.transport.AbstractSender

getAddress, getAttempt, getConnectTime, getDestination, getDirect, getDirectBuffer, getKeepAliveCount, getKeepAliveTime, getMaxRetryAttempts, getOoBInline, getPort, getRequestCount, getRxBufSize, getSoKeepAlive, getSoLingerOn, getSoLingerTime, getSoReuseAddress, getSoTrafficClass, getTcpNoDelay, getThrowOnFailedAck, getTimeout, getTxBufSize, getUdpPort, getUdpRxBufSize, getUdpTxBufSize, isConnected, isUdpBased, keepalive, setAddress, setAttempt, setConnected, setConnectTime, setDestination, setDirect, setDirectBuffer, setKeepAliveCount, setKeepAliveTime, setMaxRetryAttempts, setOoBInline, setPort, setRequestCount, setRxBufSize, setSoKeepAlive, setSoLingerOn, setSoLingerTime, setSoReuseAddress, setSoTrafficClass, setTcpNoDelay, setThrowOnFailedAck, setTimeout, setTxBufSize, setUdpBased, setUdpPort, setUdpRxBufSize, setUdpTxBufSize, transferProperties

Methods inherited from class java.lang.Object

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

Field Detail

selector

protected Selector selector

socketChannel

protected SocketChannel socketChannel

dataChannel

protected DatagramChannel dataChannel

readbuf

protected ByteBuffer readbuf

writebuf

protected ByteBuffer writebuf

current

protected byte[] current

ackbuf

protected XByteBuffer ackbuf

remaining

protected int remaining

complete

protected boolean complete

connecting

protected boolean connecting

Constructor Detail

NioSender

public NioSender()

Method Detail

process

public boolean process(SelectionKey key,
                       boolean waitForAck)
                throws IOException

State machine to send data

Parameters:

key - SelectionKey

Returns:

boolean

Throws:

IOException

read

protected boolean read(SelectionKey key)
                throws IOException

Throws:

IOException

write

protected boolean write(SelectionKey key)
                 throws IOException

Throws:

IOException

connect

public void connect()
             throws IOException

connect - blocking in this operation

Specified by:

connect in interface DataSender

Specified by:

connect in class AbstractSender

Throws:

IOException

disconnect

public void disconnect()

disconnect

Specified by:

disconnect in interface DataSender

Specified by:

disconnect in class AbstractSender

reset

public void reset()

setMessage

public void setMessage(byte[] data)
                throws IOException

sendMessage

Parameters:

data - ChannelMessage

Throws:

IOException

setMessage

public void setMessage(byte[] data,
                       int offset,
                       int length)
                throws IOException

Throws:

IOException

getMessage

public byte[] getMessage()

isComplete

public boolean isComplete()

getSelector

public Selector getSelector()

setSelector

public void setSelector(Selector selector)

setComplete

public void setComplete(boolean complete)