Package 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

Field Summary

Fields

Modifier and Type	Field	Description
protected final XByteBuffer	ackbuf
protected boolean	complete
protected boolean	connecting
protected byte[]	current
protected DatagramChannel	dataChannel
protected ByteBuffer	readbuf
protected int	remaining
protected Selector	selector
protected static final StringManager	sm
protected SocketChannel	socketChannel
protected ByteBuffer	writebuf

Constructor Summary

Constructors

Constructor	Description
NioSender()

Method Summary

Modifier and Type	Method	Description
void	connect()	connect - blocking in this operation
void	disconnect()	disconnect TODO Implement this org.apache.catalina.tribes.transport.IDataSender method
byte[]	getMessage()
Selector	getSelector()
boolean	isComplete()
boolean	process(SelectionKey key, boolean waitForAck)	State machine to send data.
protected boolean	read()
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()

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

getAddress, getAttempt, getConnectTime, getDestination, 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, 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 Details

sm

protected static final StringManager sm

selector

protected Selector selector

socketChannel

protected SocketChannel socketChannel

dataChannel

protected DatagramChannel dataChannel

readbuf

protected ByteBuffer readbuf

writebuf

protected ByteBuffer writebuf

current

protected volatile byte[] current

ackbuf

protected final XByteBuffer ackbuf

remaining

protected int remaining

complete

protected boolean complete

connecting

protected boolean connecting

Constructor Details

NioSender

public NioSender()

Method Details

process

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

State machine to send data.

Parameters:

key - The key to use

waitForAck - Wait for an ack

Returns:

true if the processing was successful

Throws:

IOException - An IO error occurred

read

protected boolean read()
                throws IOException

Throws:

IOException

write

protected boolean write()
                 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 - TODO Implement this org.apache.catalina.tribes.transport.IDataSender method

disconnect

public void disconnect()

disconnect TODO Implement this org.apache.catalina.tribes.transport.IDataSender method

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 - TODO Implement this org.apache.catalina.tribes.transport.IDataSender method

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)