com.netflix.hystrix.contrib.metrics.eventstream

Class HystrixMetricsPoller

java.lang.Object

com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsPoller

Deprecated.

Prefer HystrixDashboardStream

@Deprecated
public class HystrixMetricsPoller
extends java.lang.Object

Polls Hystrix metrics and output JSON strings for each metric to a MetricsPollerListener.

Polling can be stopped/started. Use shutdown() to permanently shutdown the poller. An implementation note. If there's a version mismatch between hystrix-core and hystrix-metrics-event-stream, the code below may reference a HystrixEventType that does not exist in hystrix-core. If this happens, a j.l.NoSuchFieldError occurs. Since this data is not being generated by hystrix-core, it's safe to count it as 0 and we should log an error to get users to update their dependency set.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	HystrixMetricsPoller.MetricsAsJsonPollerListener Deprecated.

Constructor Summary

Constructors

Constructor and Description
HystrixMetricsPoller(HystrixMetricsPoller.MetricsAsJsonPollerListener listener, int delay) Deprecated. Allocate resources to begin polling.

Method Summary

Modifier and Type	Method and Description
boolean	isRunning() Deprecated.
void	pause() Deprecated. Pause (stop) polling.
void	shutdown() Deprecated. Stops polling and shuts down the ExecutorService.
void	start() Deprecated. Start polling.

Methods inherited from class java.lang.Object

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

Constructor Detail

HystrixMetricsPoller

public HystrixMetricsPoller(HystrixMetricsPoller.MetricsAsJsonPollerListener listener,
                            int delay)

Deprecated.

Allocate resources to begin polling.

Use start to begin polling.

Use shutdown to cleanup resources and stop polling.

Use pause to temporarily stop polling that can be restarted again with start.

Parameters:

listener - for callbacks

delay -

Method Detail

start

public void start()

Deprecated.

Start polling.

pause

public void pause()

Deprecated.

Pause (stop) polling. Polling can be started again with start as long as shutdown is not called.

shutdown

public void shutdown()

Deprecated.

Stops polling and shuts down the ExecutorService.

This instance can no longer be used after calling shutdown.

isRunning

public boolean isRunning()

Deprecated.