com.cosylab.epics.caj.cas
Class CAJServerContext

java.lang.Object
  gov.aps.jca.cas.ServerContext
      com.cosylab.epics.caj.cas.CAJServerContext

All Implemented Interfaces:

CAContext, LoggerProvider, gov.aps.jca.configuration.Configurable

public class CAJServerContext
extends gov.aps.jca.cas.ServerContext
implements CAContext, gov.aps.jca.configuration.Configurable

Implementation of CAJ JCA Context.

Version:

$id$

Author:

Matej Sekoranja

Field Summary

protected CASAcceptor	acceptor CAS acceptor (accepts CA virtual circuit).
protected boolean	autoBeaconAddressList Define whether or not the network interfaces should be discovered at runtime.
protected String	beaconAddressList A space-separated list of broadcast address which to send beacons.
protected BeaconEmitter	beaconEmitter Beacon emitter..
protected float	beaconPeriod Period in second between two beacon signals.
protected int	beaconPort Port number for the repeater to listen to.
protected BroadcastTransport	broadcastTransport Broadcast transport needed for channel searches.
protected CachedByteBufferAllocator	cachedBufferAllocator Cached byte buffer allocator.
static String	CAJ_SINGLE_THREADED_MODEL String value of the JVM property key to turn on single threaded model.
protected ArrayList	contextExceptionListeners List of context exception listeners.
protected ArrayList	contextMessageListeners List of context message listeners.
protected String	ignoreAddressList A space-separated list of address from which to ignore name resolution requests.
protected LeaderFollowersThreadPool	leaderFollowersThreadPool Leader/followers thread pool.
protected Logger	logger Context logger.
protected int	maxArrayBytes Length in bytes of the maximum array size that may pass through CA.
protected Reactor	reactor Reactor.
protected Object	runLock Run lock.
protected gov.aps.jca.cas.Server	server Server.
protected int	serverPort Port number for the server to listen to.
protected Timer	timer Timer.
protected CATransportRegistry	transportRegistry CA transport (virtual circuit) registry.
static gov.aps.jca.Version	VERSION Version.

Constructor Summary

CAJServerContext()
Constructor.

Method Summary

void	addContextExceptionListener(gov.aps.jca.event.ContextExceptionListener l)
void	addContextMessageListener(gov.aps.jca.event.ContextMessageListener l)
protected void	checkState() Check context state and tries to establish necessary state.
void	configure(gov.aps.jca.configuration.Configuration configuration)
void	destroy()
int	generateChannelSID() Generate channel SID.
String	getBeaconAddressList() Get beacon address list.
float	getBeaconPeriod() Get beacon period (in seconds).
int	getBeaconPort() Get beacon port.
int	getBroadcastPort() Get broadcast port.
BroadcastTransport	getBroadcastTransport() Broadcast transport.
CachedByteBufferAllocator	getCachedBufferAllocator() Get cached byte allocator.
gov.aps.jca.event.ContextExceptionListener[]	getContextExceptionListeners()
gov.aps.jca.event.ContextMessageListener[]	getContextMessageListeners()
String	getIgnoreAddressList() Get ignore search address list.
int	getLastReceivedSequenceNumber(int seqNo) Set last UDP recived sequence number.
LeaderFollowersThreadPool	getLeaderFollowersThreadPool() Get LF thread pool.
Logger	getLogger() Get logger.
int	getMaxArrayBytes() Get max array payload size.
Reactor	getReactor() Get context reactor.
gov.aps.jca.cas.Server	getServer() Get server implementation.
InetAddress	getServerInetAddress() Get server newtwork (IP) address.
int	getServerPort() Get server port.
Timer	getTimer() Get timer.
CATransportRegistry	getTransportRegistry() Get CA transport (virtual circuit) registry.
gov.aps.jca.Version	getVersion() Get context version.
void	initialize(gov.aps.jca.cas.Server server) Set server and initialize.
protected void	initializeLogger() Initialize context logger.
void	invalidateLastReceivedSequence() Invalidate last (UDP) received sequence.
boolean	isAutoBeaconAddressList() Get beacon address list auto flag.
boolean	isDestroyed() Get destruction status.
boolean	isInitialized() Get initialization status.
protected void	loadConfiguration() Load configuration.
void	printInfo(PrintStream out)
void	removeContextExceptionListener(gov.aps.jca.event.ContextExceptionListener l)
void	removeContextMessageListener(gov.aps.jca.event.ContextMessageListener l)
void	run(int seconds) Run server (process events).
void	setLastReceivedSequenceNumber(int seqNo) Set last UDP recived sequence number.
void	setServerPort(int port) Set server port number.
void	shutdown()

Methods inherited from class gov.aps.jca.cas.ServerContext

dispose, printInfo

Methods inherited from class java.lang.Object

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

Field Detail

VERSION

public static final gov.aps.jca.Version VERSION

Version.

CAJ_SINGLE_THREADED_MODEL

public static final String CAJ_SINGLE_THREADED_MODEL

String value of the JVM property key to turn on single threaded model.

See Also:

Constant Field Values

logger

protected Logger logger

Context logger.

beaconAddressList

protected String beaconAddressList

A space-separated list of broadcast address which to send beacons. Each address must be of the form: ip.number:port or host.name:port

ignoreAddressList

protected String ignoreAddressList

A space-separated list of address from which to ignore name resolution requests. Each address must be of the form: ip.number:port or host.name:port

autoBeaconAddressList

protected boolean autoBeaconAddressList

Define whether or not the network interfaces should be discovered at runtime.

beaconPeriod

protected float beaconPeriod

Period in second between two beacon signals.

beaconPort

protected int beaconPort

Port number for the repeater to listen to.

serverPort

protected int serverPort

Port number for the server to listen to.

maxArrayBytes

protected int maxArrayBytes

Length in bytes of the maximum array size that may pass through CA.

contextMessageListeners

protected ArrayList contextMessageListeners

List of context message listeners.

contextExceptionListeners

protected ArrayList contextExceptionListeners

List of context exception listeners.

timer

protected Timer timer

Timer.

reactor

protected Reactor reactor

Reactor.

leaderFollowersThreadPool

protected LeaderFollowersThreadPool leaderFollowersThreadPool

Leader/followers thread pool.

broadcastTransport

protected BroadcastTransport broadcastTransport

Broadcast transport needed for channel searches.

beaconEmitter

protected BeaconEmitter beaconEmitter

Beacon emitter..

acceptor

protected CASAcceptor acceptor

CAS acceptor (accepts CA virtual circuit).

transportRegistry

protected CATransportRegistry transportRegistry

CA transport (virtual circuit) registry. This registry contains all active transports - connections to CA servers.

cachedBufferAllocator

protected CachedByteBufferAllocator cachedBufferAllocator

Cached byte buffer allocator. Used by transports which as send buffers.

server

protected gov.aps.jca.cas.Server server

Server.

runLock

protected Object runLock

Run lock.

Constructor Detail

CAJServerContext

public CAJServerContext()

Constructor.

Method Detail

getVersion

public gov.aps.jca.Version getVersion()

Get context version.

Specified by:

getVersion in class gov.aps.jca.cas.ServerContext

Returns:

context version.

See Also:

Context.getVersion()

initializeLogger

protected void initializeLogger()

Initialize context logger.

loadConfiguration

protected void loadConfiguration()

Load configuration.

configure

public void configure(gov.aps.jca.configuration.Configuration configuration)
               throws gov.aps.jca.configuration.ConfigurationException

Specified by:

configure in interface gov.aps.jca.configuration.Configurable

Throws:

gov.aps.jca.configuration.ConfigurationException

See Also:

Configurable.configure(gov.aps.jca.configuration.Configuration)

getContextMessageListeners

public gov.aps.jca.event.ContextMessageListener[] getContextMessageListeners()
                                                                      throws IllegalStateException

Specified by:

getContextMessageListeners in class gov.aps.jca.cas.ServerContext

Returns:

array of context message listeners.

Throws:

IllegalStateException

See Also:

Context.getContextMessageListeners()

addContextMessageListener

public void addContextMessageListener(gov.aps.jca.event.ContextMessageListener l)
                               throws gov.aps.jca.CAException,
                                      IllegalStateException

Specified by:

addContextMessageListener in class gov.aps.jca.cas.ServerContext

Throws:

gov.aps.jca.CAException

IllegalStateException

See Also:

Context.addContextMessageListener(gov.aps.jca.event.ContextMessageListener)

removeContextMessageListener

public void removeContextMessageListener(gov.aps.jca.event.ContextMessageListener l)
                                  throws gov.aps.jca.CAException,
                                         IllegalStateException

Specified by:

removeContextMessageListener in class gov.aps.jca.cas.ServerContext

Throws:

gov.aps.jca.CAException

IllegalStateException

See Also:

Context.removeContextMessageListener(gov.aps.jca.event.ContextMessageListener)

getContextExceptionListeners

public gov.aps.jca.event.ContextExceptionListener[] getContextExceptionListeners()
                                                                          throws IllegalStateException

Specified by:

getContextExceptionListeners in class gov.aps.jca.cas.ServerContext

Throws:

IllegalStateException

See Also:

Context.getContextExceptionListeners()

addContextExceptionListener

public void addContextExceptionListener(gov.aps.jca.event.ContextExceptionListener l)
                                 throws gov.aps.jca.CAException,
                                        IllegalStateException

Specified by:

addContextExceptionListener in class gov.aps.jca.cas.ServerContext

Throws:

gov.aps.jca.CAException

IllegalStateException

See Also:

Context.addContextExceptionListener(gov.aps.jca.event.ContextExceptionListener)

removeContextExceptionListener

public void removeContextExceptionListener(gov.aps.jca.event.ContextExceptionListener l)
                                    throws gov.aps.jca.CAException,
                                           IllegalStateException

Specified by:

removeContextExceptionListener in class gov.aps.jca.cas.ServerContext

Throws:

gov.aps.jca.CAException

IllegalStateException

See Also:

Context.removeContextExceptionListener(gov.aps.jca.event.ContextExceptionListener)

checkState

protected void checkState()
                   throws gov.aps.jca.CAException,
                          IllegalStateException

Check context state and tries to establish necessary state.

Throws:

gov.aps.jca.CAException

IllegalStateException

initialize

public void initialize(gov.aps.jca.cas.Server server)
                throws gov.aps.jca.CAException,
                       IllegalStateException

Set server and initialize.

Specified by:

initialize in class gov.aps.jca.cas.ServerContext

Throws:

gov.aps.jca.CAException

IllegalStateException

See Also:

ServerContext.initialize(gov.aps.jca.cas.Server)

run

public void run(int seconds)
         throws gov.aps.jca.CAException,
                IllegalStateException

Run server (process events).

Specified by:

run in class gov.aps.jca.cas.ServerContext

Parameters:

seconds - time in seconds the server will process events (method will block), if 0 the method would block until destory() is called.

Throws:

IllegalStateException - if server is already destroyed.

gov.aps.jca.CAException

shutdown

public void shutdown()
              throws gov.aps.jca.CAException,
                     IllegalStateException

Specified by:

shutdown in class gov.aps.jca.cas.ServerContext

Throws:

gov.aps.jca.CAException

IllegalStateException

See Also:

ServerContext.shutdown()

destroy

public void destroy()
             throws gov.aps.jca.CAException,
                    IllegalStateException

Specified by:

destroy in class gov.aps.jca.cas.ServerContext

Throws:

gov.aps.jca.CAException

IllegalStateException

See Also:

Context.destroy()

printInfo

public void printInfo(PrintStream out)
               throws IllegalStateException

Overrides:

printInfo in class gov.aps.jca.cas.ServerContext

Throws:

IllegalStateException

See Also:

Context.printInfo(java.io.PrintStream)

isInitialized

public boolean isInitialized()

Get initialization status.

Returns:

initialization status.

isDestroyed

public boolean isDestroyed()

Get destruction status.

Returns:

destruction status.

getBeaconAddressList

public String getBeaconAddressList()

Get beacon address list.

Returns:

beacon address list.

isAutoBeaconAddressList

public boolean isAutoBeaconAddressList()

Get beacon address list auto flag.

Returns:

beacon address list auto flag.

getBeaconPeriod

public float getBeaconPeriod()

Get beacon period (in seconds).

Returns:

beacon period (in seconds).

getLogger

public Logger getLogger()

Get logger.

Specified by:

getLogger in interface LoggerProvider

Returns:

logger.

getMaxArrayBytes

public int getMaxArrayBytes()

Get max array payload size.

Returns:

max array payload size.

getBeaconPort

public int getBeaconPort()

Get beacon port.

Returns:

beacon port.

getServerPort

public int getServerPort()

Get server port.

Specified by:

getServerPort in interface CAContext

Returns:

server port.

setServerPort

public void setServerPort(int port)

Set server port number.

Parameters:

port - new server port number.

getBroadcastPort

public int getBroadcastPort()

Get broadcast port.

Specified by:

getBroadcastPort in interface CAContext

Returns:

broadcast port.

getIgnoreAddressList

public String getIgnoreAddressList()

Get ignore search address list.

Returns:

ignore search addrresr list.

getServerInetAddress

public InetAddress getServerInetAddress()

Get server newtwork (IP) address.

Returns:

server network (IP) address, null if not bounded.

getReactor

public Reactor getReactor()

Get context reactor.

Specified by:

getReactor in interface CAContext

Returns:

context reactor.

getBroadcastTransport

public BroadcastTransport getBroadcastTransport()

Broadcast transport.

Specified by:

getBroadcastTransport in interface CAContext

Returns:

broadcast transport.

getTransportRegistry

public CATransportRegistry getTransportRegistry()

Get CA transport (virtual circuit) registry.

Specified by:

getTransportRegistry in interface CAContext

Returns:

CA transport (virtual circuit) registry.

getTimer

public Timer getTimer()

Get timer.

Specified by:

getTimer in interface CAContext

Returns:

timer.

getCachedBufferAllocator

public CachedByteBufferAllocator getCachedBufferAllocator()

Get cached byte allocator.

Specified by:

getCachedBufferAllocator in interface CAContext

Returns:

cached byte allocator.

getLeaderFollowersThreadPool

public LeaderFollowersThreadPool getLeaderFollowersThreadPool()

Get LF thread pool.

Specified by:

getLeaderFollowersThreadPool in interface CAContext

Returns:

LF thread pool, can be null if disabled.

getServer

public gov.aps.jca.cas.Server getServer()

Get server implementation.

Returns:

server implementation.

generateChannelSID

public int generateChannelSID()

Generate channel SID.

Returns:

channel SID.

setLastReceivedSequenceNumber

public final void setLastReceivedSequenceNumber(int seqNo)

Set last UDP recived sequence number.

Parameters:

seqNo - last UDP recived sequence number.

getLastReceivedSequenceNumber

public final int getLastReceivedSequenceNumber(int seqNo)

Set last UDP recived sequence number.

Parameters:

seqNo - last UDP recived sequence number.

invalidateLastReceivedSequence

public final void invalidateLastReceivedSequence()

Description copied from interface: CAContext

Invalidate last (UDP) received sequence.

Specified by:

invalidateLastReceivedSequence in interface CAContext

See Also:

CAContext.invalidateLastReceivedSequence()