org.apache.storm.metrics.sigar

Class CPUMetric

java.lang.Object

org.apache.storm.metrics.sigar.CPUMetric

All Implemented Interfaces:

IMetric

public class CPUMetric
extends Object
implements IMetric

A metric using Sigar to get User and System CPU utilization for a worker.

Constructor Summary

Constructors

Constructor and Description
CPUMetric()

Method Summary

Modifier and Type	Method and Description
Object	getValueAndReset() Get value and reset.

Methods inherited from class java.lang.Object

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

Constructor Detail

CPUMetric

public CPUMetric()

Method Detail

getValueAndReset

public Object getValueAndReset()

Description copied from interface: IMetric

Get value and reset.

Specified by:

getValueAndReset in interface IMetric

Returns:

an object that will be sent sent to IMetricsConsumer#handleDataPoints(org.apache.storm.metric.api.IMetricsConsumer .TaskInfo, java.util.Collection). If null is returned nothing will be sent. If this value can be reset, like with a counter, a side effect of calling this should be that the value is reset.