net.myrrix.common.stats

Class JVMEnvironment

java.lang.Object

net.myrrix.common.stats.JVMEnvironment

public final class JVMEnvironment
extends Object

A bean encapsulating some characteristics of the JVM's runtime environment.

Since:

1.0

Author:

Sean Owen

Constructor Summary

Constructors

Constructor and Description
JVMEnvironment()

Method Summary

Methods

Modifier and Type	Method and Description
String	getHostName()
long	getMaxMemory()
int	getMaxMemoryMB()
int	getNumProcessors()
int	getPercentUsedMemory()
long	getUsedMemory()
int	getUsedMemoryMB()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

JVMEnvironment

public JVMEnvironment()

Method Detail

getNumProcessors

public int getNumProcessors()

Returns:

number of logical processors available to the JVM.

getUsedMemory

public long getUsedMemory()

Returns:

approximate heap used, in bytes

getUsedMemoryMB

public int getUsedMemoryMB()

Returns:

approximate heap used, in megabytes

getMaxMemory

public long getMaxMemory()

Returns:

maximum size that the heap may grow to, in bytes

getMaxMemoryMB

public int getMaxMemoryMB()

Returns:

maximum size that the heap may grow to, in megabytes

getPercentUsedMemory

public int getPercentUsedMemory()

Returns:

getUsedMemoryMB() as a percentage of getMaxMemoryMB() as a percentage in [0,100]

getHostName

public String getHostName()

Returns:

the hostname of the local machine, or UNKNOWN_HOST if it can't be determined

toString

public String toString()

Overrides:

toString in class Object