Package com.arpnetworking.metrics.impl

Class InstrumentedApacheHttpSinkEventHandler

java.lang.Object

com.arpnetworking.metrics.impl.InstrumentedApacheHttpSinkEventHandler

All Implemented Interfaces:

ApacheHttpSinkEventHandler

public final class InstrumentedApacheHttpSinkEventHandler
extends Object
implements ApacheHttpSinkEventHandler

Implementation of ApacheHttpSinkEventHandler which emits metrics periodically about the performance of the ApacheHttpSink. Although you cannot extend it through inheritance because it is final, you can extend it by encapsulating it within your own ApacheHttpSinkEventHandler implementation. TODO(ville): Convert to using PeriodicMetrics from the incubator project. TODO(ville): Add queue length metric by periodically polling the sink.

Author:

Ville Koskela (ville dot koskela at inscopemetrics dot io)

Constructor Summary

Constructors

Constructor	Description
InstrumentedApacheHttpSinkEventHandler(Supplier<Optional<com.arpnetworking.metrics.MetricsFactory>> metricsFactorySupplier)	Public constructor.

Method Summary

Modifier and Type	Method	Description
void	attemptComplete(long records, long bytes, boolean success, long elapasedTime, TimeUnit elapsedTimeUnit)	Callback invoked when a request to send samples has completed.
void	droppedEvent(com.arpnetworking.metrics.Event event)	Callback invoked when an Event is dropped from the queue.

Methods inherited from class java.lang.Object

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

Constructor Details

InstrumentedApacheHttpSinkEventHandler

public InstrumentedApacheHttpSinkEventHandler(Supplier<Optional<com.arpnetworking.metrics.MetricsFactory>> metricsFactorySupplier)

Public constructor.

Parameters:

metricsFactorySupplier - Supplier that provides Optional MetricsFactory instance. Decouples the circular reference between this event handler and the metrics factory.

Method Details

attemptComplete

public void attemptComplete(long records,
 long bytes,
 boolean success,
 long elapasedTime,
 TimeUnit elapsedTimeUnit)

Description copied from interface: ApacheHttpSinkEventHandler

Callback invoked when a request to send samples has completed.

Specified by:

attemptComplete in interface ApacheHttpSinkEventHandler

Parameters:

records - the number of records sent

bytes - the number of bytes sent

success - success or failure

elapasedTime - the elapsed time

elapsedTimeUnit - the elapsed time unit

droppedEvent

public void droppedEvent(com.arpnetworking.metrics.Event event)

Description copied from interface: ApacheHttpSinkEventHandler

Callback invoked when an Event is dropped from the queue.

Specified by:

droppedEvent in interface ApacheHttpSinkEventHandler

Parameters:

event - the Event dropped from the queue