org.fusesource.hawtdispatch.transport
Class UdpTransport

java.lang.Object
  org.fusesource.hawtdispatch.transport.ServiceBase
      org.fusesource.hawtdispatch.transport.UdpTransport

All Implemented Interfaces:

Transport

public class UdpTransport
extends ServiceBase
implements Transport

Author:

Hiram Chirino

Nested Class Summary

Nested classes/interfaces inherited from class org.fusesource.hawtdispatch.transport.ServiceBase

ServiceBase.STARTING, ServiceBase.State, ServiceBase.STOPPING

Field Summary

static SocketAddress	ANY_ADDRESS
protected DatagramChannel	channel
protected ProtocolCodec	codec
protected DispatchQueue	dispatchQueue
protected CustomDispatchSource<Integer,Integer>	drainOutboundSource
static int	IPTOS_LOWCOST
static int	IPTOS_LOWDELAY
static int	IPTOS_RELIABILITY
static int	IPTOS_THROUGHPUT
protected TransportListener	listener
protected URI	localLocation
protected URI	remoteLocation
protected org.fusesource.hawtdispatch.transport.UdpTransport.SocketState	socketState
protected boolean	useLocalHost
protected CustomDispatchSource<Integer,Integer>	yieldSource

Fields inherited from class org.fusesource.hawtdispatch.transport.ServiceBase

_serviceState, CREATED, STARTED, STOPPED

Constructor Summary

UdpTransport()

Method Summary

void	_start(Task onCompleted)
void	_stop(Task onCompleted)
void	connected(DatagramChannel channel)
void	connecting(URI remoteLocation, URI localLocation)
protected void	drainInbound()
void	flush() Forces a flush of any output buffers.
boolean	full()
DatagramChannel	getDatagramChannel()
DispatchQueue	getDispatchQueue() Returns the dispatch queue used by the transport
SocketAddress	getLocalAddress()
ProtocolCodec	getProtocolCodec()
int	getReceiveBufferSize()
SocketAddress	getRemoteAddress()
int	getSendBufferSize()
int	getTrafficClass()
TransportListener	getTransportListener() Returns the current transport listener
protected void	initializeChannel()
protected void	initializeCodec()
boolean	isClosed()
boolean	isConnected()
boolean	isUseLocalHost()
boolean	offer(Object command) A one way asynchronous send of a command.
protected void	onConnected()
void	onTransportFailure(IOException error)
ReadableByteChannel	readChannel()
protected String	resolveHostName(String host)
void	resumeRead() resume delivery of commands.
protected void	resumeWrite()
void	setDispatchQueue(DispatchQueue queue) Sets the dispatch queue used by the transport
void	setProtocolCodec(ProtocolCodec protocolCodec) Sets the protocol codec for the transport
void	setReceiveBufferSize(int receiveBufferSize)
void	setSendBufferSize(int sendBufferSize)
void	setTrafficClass(int trafficClass)
void	setTransportListener(TransportListener transportListener) Registers an inbound command listener
void	setUseLocalHost(boolean useLocalHost) Sets whether 'localhost' or the actual local host name should be used to make local connections.
void	suspendRead() suspend delivery of commands.
protected void	suspendWrite()
protected boolean	transportFlush()
WritableByteChannel	writeChannel()

Methods inherited from class org.fusesource.hawtdispatch.transport.ServiceBase

getServiceState, start, start, stop, stop

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.fusesource.hawtdispatch.transport.Transport

start, start, stop, stop

Field Detail

ANY_ADDRESS

public static final SocketAddress ANY_ADDRESS

remoteLocation

protected URI remoteLocation

localLocation

protected URI localLocation

listener

protected TransportListener listener

codec

protected ProtocolCodec codec

channel

protected DatagramChannel channel

socketState

protected org.fusesource.hawtdispatch.transport.UdpTransport.SocketState socketState

dispatchQueue

protected DispatchQueue dispatchQueue

drainOutboundSource

protected CustomDispatchSource<Integer,Integer> drainOutboundSource

yieldSource

protected CustomDispatchSource<Integer,Integer> yieldSource

useLocalHost

protected boolean useLocalHost

IPTOS_LOWCOST

public static final int IPTOS_LOWCOST

See Also:

Constant Field Values

IPTOS_RELIABILITY

public static final int IPTOS_RELIABILITY

See Also:

Constant Field Values

IPTOS_THROUGHPUT

public static final int IPTOS_THROUGHPUT

See Also:

Constant Field Values

IPTOS_LOWDELAY

public static final int IPTOS_LOWDELAY

See Also:

Constant Field Values

Constructor Detail

UdpTransport

public UdpTransport()

Method Detail

connected

public void connected(DatagramChannel channel)
               throws IOException,
                      Exception

Throws:

IOException

Exception

initializeChannel

protected void initializeChannel()
                          throws Exception

Throws:

Exception

initializeCodec

protected void initializeCodec()
                        throws Exception

Throws:

Exception

connecting

public void connecting(URI remoteLocation,
                       URI localLocation)
                throws IOException,
                       Exception

Throws:

IOException

Exception

getDispatchQueue

public DispatchQueue getDispatchQueue()

Description copied from interface: Transport

Returns the dispatch queue used by the transport

Specified by:

getDispatchQueue in interface Transport

Specified by:

getDispatchQueue in class ServiceBase

Returns:

setDispatchQueue

public void setDispatchQueue(DispatchQueue queue)

Description copied from interface: Transport

Sets the dispatch queue used by the transport

Specified by:

setDispatchQueue in interface Transport

_start

public void _start(Task onCompleted)

Specified by:

_start in class ServiceBase

_stop

public void _stop(Task onCompleted)

Specified by:

_stop in class ServiceBase

resolveHostName

protected String resolveHostName(String host)
                          throws UnknownHostException

Throws:

UnknownHostException

onConnected

protected void onConnected()
                    throws IOException

Throws:

IOException

onTransportFailure

public void onTransportFailure(IOException error)

full

public boolean full()

Specified by:

full in interface Transport

offer

public boolean offer(Object command)

Description copied from interface: Transport

A one way asynchronous send of a command. Only sent if the the transport is not full.

Specified by:

offer in interface Transport

Returns:

true if the command was accepted.

flush

public void flush()

Description copied from interface: Transport

Forces a flush of any output buffers. Once the flush completes the listener's 'onRefill()' method will execute.

Specified by:

flush in interface Transport

transportFlush

protected boolean transportFlush()
                          throws IOException

Throws:

IOException

drainInbound

protected void drainInbound()

getLocalAddress

public SocketAddress getLocalAddress()

Specified by:

getLocalAddress in interface Transport

Returns:

the remote address for this connection

getRemoteAddress

public SocketAddress getRemoteAddress()

Specified by:

getRemoteAddress in interface Transport

Returns:

the remote address for this connection

suspendRead

public void suspendRead()

Description copied from interface: Transport

suspend delivery of commands.

Specified by:

suspendRead in interface Transport

resumeRead

public void resumeRead()

Description copied from interface: Transport

resume delivery of commands.

Specified by:

resumeRead in interface Transport

suspendWrite

protected void suspendWrite()

resumeWrite

protected void resumeWrite()

getTransportListener

public TransportListener getTransportListener()

Description copied from interface: Transport

Returns the current transport listener

Specified by:

getTransportListener in interface Transport

Returns:

setTransportListener

public void setTransportListener(TransportListener transportListener)

Description copied from interface: Transport

Registers an inbound command listener

Specified by:

setTransportListener in interface Transport

getProtocolCodec

public ProtocolCodec getProtocolCodec()

Specified by:

getProtocolCodec in interface Transport

Returns:

The protocol codec for the transport.

setProtocolCodec

public void setProtocolCodec(ProtocolCodec protocolCodec)
                      throws Exception

Description copied from interface: Transport

Sets the protocol codec for the transport

Specified by:

setProtocolCodec in interface Transport

Throws:

Exception

isConnected

public boolean isConnected()

Specified by:

isConnected in interface Transport

Returns:

true if the transport is connected

isClosed

public boolean isClosed()

Specified by:

isClosed in interface Transport

Returns:

true if the transport is closed/stopped.

isUseLocalHost

public boolean isUseLocalHost()

setUseLocalHost

public void setUseLocalHost(boolean useLocalHost)

Sets whether 'localhost' or the actual local host name should be used to make local connections. On some operating systems such as Macs its not possible to connect as the local host name so localhost is better.

getDatagramChannel

public DatagramChannel getDatagramChannel()

readChannel

public ReadableByteChannel readChannel()

writeChannel

public WritableByteChannel writeChannel()

getTrafficClass

public int getTrafficClass()

setTrafficClass

public void setTrafficClass(int trafficClass)

getReceiveBufferSize

public int getReceiveBufferSize()

setReceiveBufferSize

public void setReceiveBufferSize(int receiveBufferSize)

getSendBufferSize

public int getSendBufferSize()

setSendBufferSize

public void setSendBufferSize(int sendBufferSize)