Package org.jboss.modcluster.load.metric.impl

Class AverageSystemLoadMetric

java.lang.Object

org.jboss.modcluster.load.metric.impl.AbstractLoadMetric

org.jboss.modcluster.load.metric.impl.AverageSystemLoadMetric

All Implemented Interfaces:

LoadMetric, LoadMetricMBean

public class AverageSystemLoadMetric
extends AbstractLoadMetric

Uses OperatingSystemMXBean.getSystemLoadAverage() to calculate average system load.

Author:

Paul Ferraro

Field Summary

Fields inherited from interface org.jboss.modcluster.load.metric.LoadMetric

DEFAULT_CAPACITY, DEFAULT_WEIGHT

Constructor Summary

Constructors

Constructor	Description
AverageSystemLoadMetric()
AverageSystemLoadMetric(OperatingSystemMXBean bean)

Method Summary

Modifier and Type	Method	Description
double	getLoad(Engine engine)	Returns the current load of this metric as a percent of the metric's capacity.

Methods inherited from class org.jboss.modcluster.load.metric.impl.AbstractLoadMetric

getCapacity, getWeight, setCapacity, setWeight

Methods inherited from class java.lang.Object

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

Constructor Details

AverageSystemLoadMetric

public AverageSystemLoadMetric()

AverageSystemLoadMetric

public AverageSystemLoadMetric(OperatingSystemMXBean bean)

Method Details

getLoad

public double getLoad(Engine engine)
               throws Exception

Description copied from interface: LoadMetric

Returns the current load of this metric as a percent of the metric's capacity.

Returns:

raw load / capacity.

Throws:

NodeUnavailableException - if the node should be put into the error state.

Exception - if the load could not be determined.