org.jboss.modcluster.load.metric.impl

Class SystemMemoryUsageLoadMetric

java.lang.Object

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

org.jboss.modcluster.load.metric.impl.SystemMemoryUsageLoadMetric

All Implemented Interfaces:

LoadMetric, LoadMetricMBean

public class SystemMemoryUsageLoadMetric
extends AbstractLoadMetric

LoadMetric implementation that uses com.sun.management.OperatingSystemMXBean to determine system memory usage.

Author:

Paul Ferraro

Field Summary

Fields

Modifier and Type	Field and Description
static String	FREE_MEMORY
static String	TOTAL_MEMORY

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

DEFAULT_CAPACITY, DEFAULT_WEIGHT

Constructor Summary

Constructors

Constructor and Description
SystemMemoryUsageLoadMetric()

Method Summary

Methods

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

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

Field Detail

FREE_MEMORY

public static final String FREE_MEMORY

See Also:

Constant Field Values

TOTAL_MEMORY

public static final String TOTAL_MEMORY

See Also:

Constant Field Values

Constructor Detail

SystemMemoryUsageLoadMetric

public SystemMemoryUsageLoadMetric()

Method Detail

setMBeanServer

public void setMBeanServer(MBeanServer server)

getLoad

public double getLoad(Engine engine)
               throws Exception

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

Returns:

raw load / capacity.

Throws:

Exception - if the load could not be determined.

See Also:

LoadMetric.getLoad(org.jboss.modcluster.container.Engine)