com.cosylab.epics.caj

Class CARepeater

java.lang.Object

com.cosylab.epics.caj.CARepeater

All Implemented Interfaces:

Runnable

public class CARepeater
extends Object
implements Runnable

CA repeater.

Version:

$id$

Author:

Matej Sekoranja

Field Summary

Fields

Modifier and Type	Field and Description
static String	CA_DISABLE_REPEATER System JVM property key to disable CA repeater.
static String	CA_FORCE_NATIVE_REPEATER System JVM property key to force native repeater.
protected List	clients List of registered clients.
protected DatagramSocket	localDatagramSocket Local unbounded DatagramSocket.
protected Logger	logger Context logger.
protected int	repeaterPort Repeater port.

Constructor Summary

Constructors

Constructor and Description
CARepeater() Constructor.
CARepeater(int repeaterPort) Constructor.

Method Summary

Modifier and Type	Method and Description
protected static DatagramSocket	createDatagramSocket() Constructs an unbound datagram socket.
protected static DatagramSocket	createDatagramSocket(int port, boolean reuseAddress) Constructs a atagram socket bound to the wildcard address on defined port.
protected void	fanOut(InetSocketAddress fromAddress, ByteBuffer buffer)
protected void	initialize() Initialize CA repeater.
protected void	initializeLogger() Initialize context logger.
protected static boolean	isRepeaterRunning(int repeaterPort) Check if repeater is running.
static void	main(String[] argv) Main entry-point.
protected void	process() Process UDP requests.
protected void	registerNewClient(InetSocketAddress clientAddress)
void	run()
static void	startRepeater(int repeaterPort) Start repeater as detached process.
protected void	verifyClients() Verify all the clients.

Methods inherited from class java.lang.Object

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

Field Detail

CA_FORCE_NATIVE_REPEATER

public static final String CA_FORCE_NATIVE_REPEATER

System JVM property key to force native repeater.

See Also:

Constant Field Values

CA_DISABLE_REPEATER

public static final String CA_DISABLE_REPEATER

System JVM property key to disable CA repeater.

See Also:

Constant Field Values

logger

protected Logger logger

Context logger.

repeaterPort

protected int repeaterPort

Repeater port.

localDatagramSocket

protected DatagramSocket localDatagramSocket

Local unbounded DatagramSocket.

clients

protected List clients

List of registered clients.

Constructor Detail

CARepeater

public CARepeater()

Constructor.

CARepeater

public CARepeater(int repeaterPort)

Constructor.

Parameters:

repeaterPort - repeater port.

Method Detail

initialize

protected void initialize()

Initialize CA repeater.

initializeLogger

protected void initializeLogger()

Initialize context logger.

run

public void run()

Specified by:

run in interface Runnable

See Also:

Runnable.run()

registerNewClient

protected void registerNewClient(InetSocketAddress clientAddress)

fanOut

protected void fanOut(InetSocketAddress fromAddress,
                      ByteBuffer buffer)

verifyClients

protected void verifyClients()

Verify all the clients.

process

protected void process()

Process UDP requests.

createDatagramSocket

protected static DatagramSocket createDatagramSocket()
                                              throws SocketException

Constructs an unbound datagram socket.

Returns:

default unbound datagram socket.

Throws:

SocketException - - if the socket could not be opened, or the socket could not bind to the specified local port.

createDatagramSocket

protected static DatagramSocket createDatagramSocket(int port,
                                                     boolean reuseAddress)
                                              throws SocketException

Constructs a atagram socket bound to the wildcard address on defined port.

Parameters:

port - InetSocketAddress

reuseAddress - Enable/disable the SO_REUSEADDR socket option

Returns:

default bounded datagram socket.

Throws:

SocketException - - if the socket could not be opened, or the socket could not bind to the specified local port.

isRepeaterRunning

protected static boolean isRepeaterRunning(int repeaterPort)

Check if repeater is running.

Parameters:

repeaterPort - repeater port.

Returns:

true if repeater is already running, false otherwise

startRepeater

public static void startRepeater(int repeaterPort)
                          throws Throwable

Start repeater as detached process. First checks if repeater is already running, if not other JVM process is run.

Parameters:

repeaterPort - repeater port.

Throws:

Throwable - throwable

main

public static void main(String[] argv)

Main entry-point.

Parameters:

argv - arguments.