Package com.codahale.metrics.jvm

Class FileDescriptorRatioGauge

java.lang.Object

com.codahale.metrics.RatioGauge

com.codahale.metrics.jvm.FileDescriptorRatioGauge

All Implemented Interfaces:

Gauge<Double>, Metric

public class FileDescriptorRatioGauge
extends RatioGauge

A gauge for the ratio of used to total file descriptors.

Nested Class Summary

Nested classes/interfaces inherited from class com.codahale.metrics.RatioGauge

RatioGauge.Ratio

Field Summary

Fields

Modifier and Type	Field	Description
private final OperatingSystemMXBean	os

Constructor Summary

Constructors

Constructor	Description
FileDescriptorRatioGauge()	Creates a new gauge using the platform OS bean.
FileDescriptorRatioGauge(OperatingSystemMXBean os)	Creates a new gauge using the given OS bean.

Method Summary

Modifier and Type	Method	Description
protected RatioGauge.Ratio	getRatio()	Returns the RatioGauge.Ratio which is the gauge's current value.
private long	invoke(String name)

Methods inherited from class com.codahale.metrics.RatioGauge

getValue

Methods inherited from class java.lang.Object

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

Field Details

os

private final OperatingSystemMXBean os

Constructor Details

FileDescriptorRatioGauge

public FileDescriptorRatioGauge()

Creates a new gauge using the platform OS bean.

FileDescriptorRatioGauge

public FileDescriptorRatioGauge(OperatingSystemMXBean os)

Creates a new gauge using the given OS bean.

Parameters:

os - an OperatingSystemMXBean

Method Details

getRatio

protected RatioGauge.Ratio getRatio()

Description copied from class: RatioGauge

Returns the RatioGauge.Ratio which is the gauge's current value.

Specified by:

getRatio in class RatioGauge

Returns:

the RatioGauge.Ratio which is the gauge's current value

invoke

private long invoke(String name)
             throws NoSuchMethodException,
IllegalAccessException,
InvocationTargetException

Throws:

NoSuchMethodException

IllegalAccessException

InvocationTargetException