Package org.glassfish.jersey.server.internal.monitoring

Class MonitoringEventListener

java.lang.Object

org.glassfish.jersey.server.internal.monitoring.MonitoringEventListener

All Implemented Interfaces:

ApplicationEventListener

@Priority(1100)
public final class MonitoringEventListener
extends Object
implements ApplicationEventListener

application event listener that listens to application and request events and supplies data to MonitoringStatisticsProcessor which produces monitoring statistics.

The MonitoringStatisticsProcessor is started by this class after the first application event comes.

This event listener must be registered as a standard provider when monitoring statistics are required in the runtime.

See Also:

• MonitoringStatisticsProcessor

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	MonitoringEventListener.MethodStats	Method statistics.
private class	MonitoringEventListener.ReqEventListener
(package private) static class	MonitoringEventListener.RequestStats	Request statistics.
(package private) static class	MonitoringEventListener.TimeStats	Time statistics.

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	EVENT_QUEUE_SIZE
private final Queue<RequestEvent>	exceptionMapperEvents
private InjectionManager	injectionManager
private static final Logger	LOGGER
private MonitoringStatisticsProcessor	monitoringStatisticsProcessor
private final Queue<MonitoringEventListener.RequestStats>	requestQueuedItems
private final Queue<Integer>	responseStatuses

Constructor Summary

Constructors

Constructor	Description
MonitoringEventListener()

Method Summary

Modifier and Type	Method	Description
(package private) Queue<RequestEvent>	getExceptionMapperEvents()	Get the exception mapper event queue.
(package private) Queue<MonitoringEventListener.RequestStats>	getRequestQueuedItems()	Get the request event queue.
(package private) Queue<Integer>	getResponseStatuses()	Get the queue with response status codes.
void	onEvent(ApplicationEvent event)	Process the application event.
MonitoringEventListener.ReqEventListener	onRequest(RequestEvent requestEvent)	Process a new request and return a request event listener if listening to request events is required.

Methods inherited from class java.lang.Object

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

Field Details

LOGGER

private static final Logger LOGGER

EVENT_QUEUE_SIZE

private static final int EVENT_QUEUE_SIZE

See Also:

• Constant Field Values

injectionManager

@Inject
private InjectionManager injectionManager

requestQueuedItems

private final Queue<MonitoringEventListener.RequestStats> requestQueuedItems

responseStatuses

private final Queue<Integer> responseStatuses

exceptionMapperEvents

private final Queue<RequestEvent> exceptionMapperEvents

monitoringStatisticsProcessor

private volatile MonitoringStatisticsProcessor monitoringStatisticsProcessor

Constructor Details

MonitoringEventListener

public MonitoringEventListener()

Method Details

onRequest

public MonitoringEventListener.ReqEventListener onRequest(RequestEvent requestEvent)

Description copied from interface: ApplicationEventListener

Process a new request and return a request event listener if listening to request events is required. The method is called once for each new incoming request. If listening to the request is required then request event must be returned from the method. Such a request event listener will receive all request events that one request. If listening to request event for the request is not required then null must be returned from the method (do not return empty mock listener in these cases as it will have negative performance impact).

Specified by:

onRequest in interface ApplicationEventListener

Parameters:

requestEvent - Event of type RequestEvent.Type.START.

Returns:

Request event listener that will monitor the events of the request connected with requestEvent; null otherwise.

onEvent

public void onEvent(ApplicationEvent event)

Description copied from interface: ApplicationEventListener

Process the application event. This method is called when new event occurs.

Specified by:

onEvent in interface ApplicationEventListener

Parameters:

event - Application event.

getExceptionMapperEvents

Queue<RequestEvent> getExceptionMapperEvents()

Get the exception mapper event queue.

Returns:

Exception mapper event queue.

getRequestQueuedItems

Queue<MonitoringEventListener.RequestStats> getRequestQueuedItems()

Get the request event queue.

Returns:

Request event queue.

getResponseStatuses

Queue<Integer> getResponseStatuses()

Get the queue with response status codes.

Returns:

response status queue.