Package ch.psi.wica.controlsystem.epics.monitor

Class EpicsChannelMonitorPublisher

java.lang.Object

ch.psi.wica.controlsystem.epics.monitor.EpicsChannelMonitorPublisher

@Component
@ThreadSafe
public class EpicsChannelMonitorPublisher
extends Object

Monitors an EPICS channel of interest and publishes value changes as they are notified.

Constructor Summary

Constructors

Constructor	Description
EpicsChannelMonitorPublisher(EpicsChannelMonitorSubscriber epicsChannelMonitorSubscriber, WicaChannelEventPublisher wicaChannelEventPublisher, StatisticsCollectionService statisticsCollectionService)	Creates a new instance.

Method Summary

Modifier and Type	Method	Description
void	addChannel(EpicsChannelMonitorRequest requestObject)	Adds a new channel to be monitored.
EpicsChannelMonitorStatistics	getStatistics()	Returns the statistics for this publisher.
void	handleChannelConnectedEvent(EpicsChannelConnectedEvent event)	Handles the response to an EPICS channel monitor becoming connected.
void	handleChannelDisconnectedEvent(EpicsChannelDisconnectedEvent event)	Handles the response to an EPICS channel monitor becoming disconnected.
boolean	isRequestObjectRecognised(EpicsChannelMonitorRequest requestObject)	Returns a boolean indicating whether the supplied request object has already been added to the internal list of channels being monitored.
void	removeAllChannels()	Removes all channel monitors.
void	removeChannel(EpicsChannelMonitorRequest requestObject)	Removes a channel from monitoring.

Methods inherited from class java.lang.Object

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

Constructor Details

EpicsChannelMonitorPublisher

EpicsChannelMonitorPublisher(@Autowired
 EpicsChannelMonitorSubscriber epicsChannelMonitorSubscriber,
 @Autowired
 WicaChannelEventPublisher wicaChannelEventPublisher,
 @Autowired
 StatisticsCollectionService statisticsCollectionService)

Creates a new instance.

Parameters:

epicsChannelMonitorSubscriber - class which will inform of monitor changes.

wicaChannelEventPublisher - class which will publish monitor changes.

statisticsCollectionService - class which will collect statistics.

Method Details

getStatistics

public EpicsChannelMonitorStatistics getStatistics()

Returns the statistics for this publisher.

Returns:

the statistics.

isRequestObjectRecognised

public boolean isRequestObjectRecognised(EpicsChannelMonitorRequest requestObject)

Returns a boolean indicating whether the supplied request object has already been added to the internal list of channels being monitored.

Parameters:

requestObject - object providing the request details.

Returns:

the result.

addChannel

public void addChannel(EpicsChannelMonitorRequest requestObject)

Adds a new channel to be monitored.

Parameters:

requestObject - object providing the request details.

removeChannel

public void removeChannel(EpicsChannelMonitorRequest requestObject)

Removes a channel from monitoring.

Parameters:

requestObject - object providing the request details.

removeAllChannels

public void removeAllChannels()

Removes all channel monitors.

handleChannelConnectedEvent

@EventListener(condition="#event.scope == \'monitored\'")
public void handleChannelConnectedEvent(EpicsChannelConnectedEvent event)

Handles the response to an EPICS channel monitor becoming connected.

Parameters:

event - the event.

handleChannelDisconnectedEvent

@EventListener(condition="#event.scope == \'monitored\'")
public void handleChannelDisconnectedEvent(EpicsChannelDisconnectedEvent event)

Handles the response to an EPICS channel monitor becoming disconnected.

Parameters:

event - the event.