com.yahoo.bullet.rest.controller

Class MetricController

java.lang.Object

com.yahoo.bullet.rest.controller.MetricController

Direct Known Subclasses:

AdminController, HTTPQueryController, WebSocketController

public class MetricController
extends Object

Constructor Summary

Constructors

Constructor and Description
MetricController(com.yahoo.bullet.common.metrics.MetricPublisher metricPublisher, com.yahoo.bullet.common.metrics.MetricCollector metricCollector) Creates a controller that reports to the given MetricPublisher the various metrics collected in the given MetricCollector.

Method Summary

Modifier and Type	Method and Description
protected void	incrementMetric(String metric) Increment the given metric.
protected void	incrementMetric(String prefix, Metric metric) Increments the Metric with a given prefix to attach to it.
void	publishMetrics() Fires and forgets the metrics using the publisher.
static List<String>	toMetric(String prefix, Metric... metrics) Concatenates a String prefix to the given metrics.

Methods inherited from class java.lang.Object

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

Constructor Detail

MetricController

public MetricController(com.yahoo.bullet.common.metrics.MetricPublisher metricPublisher,
                        com.yahoo.bullet.common.metrics.MetricCollector metricCollector)

Creates a controller that reports to the given MetricPublisher the various metrics collected in the given MetricCollector.

Parameters:

metricPublisher - The MetricPublisher to use to report metrics.

metricCollector - The MetricCollector to use.

Method Detail

publishMetrics

@Scheduled(fixedDelayString="${bullet.metric.publish.interval.ms}")
public void publishMetrics()

Fires and forgets the metrics using the publisher.

incrementMetric

protected void incrementMetric(String prefix,
                               Metric metric)

Increments the Metric with a given prefix to attach to it.

Parameters:

prefix - The prefix to attach to the given metric.

metric - The Metric name.

incrementMetric

protected void incrementMetric(String metric)

Increment the given metric.

Parameters:

metric - The String name of the metric.

toMetric

public static List<String> toMetric(String prefix,
                                    Metric... metrics)

Concatenates a String prefix to the given metrics.

Parameters:

prefix - The String prefix to add.

metrics - The Metric varargs.

Returns:

A List of String metrics with the prefix added to each.