ra.util

Class Monitor

java.lang.Object

ra.util.Monitor

public class Monitor
extends java.lang.Object

Monitor system process cup, memory status.

Author:

Ray Li

Constructor Summary

Constructors

Constructor and Description
Monitor() Initialize.

Method Summary

Modifier and Type	Method and Description
long	getCommittedVirtualMemory() Returns the amount of virtual memory that is guaranteed to be available to the running process in bytes, or -1 if this operation is not supported.
long	getFreePhysicalMemorySize() Returns the amount of free physical memory in bytes.
long	getFreeSwapSpace() Returns free swap space.
java.net.InetAddress	getLocalHost() Returns local address object.
java.lang.String	getLocalHostAddress() Returns the local IP address, ex: 192.168.1.2, and when local is no address will return null.
double	getProcessCpuLoad() Returns current process CPU status.
long	getProcessCpuTime() Returns the CPU time used by the process on which the Java virtual machine is running in nanoseconds.
double	getProcessMemoryLoad() Returns current process memory status.
double	getSystemCpuLoad() Returns current system CPU status.
long	getTotalPhysicalMemory() Returns the total amount of physical memory in bytes.
long	getTotalSwapSpaceSize() Returns the total amount of swap space in bytes.
java.lang.Object	optLocalHostAddress(java.lang.Object feedback) Returns the local IP address, ex: 192.168.1.2, and when local is no address will return feedback.

Methods inherited from class java.lang.Object

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

Constructor Detail

Monitor

public Monitor()

Initialize.

Method Detail

getLocalHostAddress

public java.lang.String getLocalHostAddress()

Returns the local IP address, ex: 192.168.1.2, and when local is no address will return null.

Returns:

IP address

optLocalHostAddress

public java.lang.Object optLocalHostAddress(java.lang.Object feedback)

Returns the local IP address, ex: 192.168.1.2, and when local is no address will return feedback.

Parameters:

feedback - If get address not found

Returns:

IP address or feedback

getLocalHost

public java.net.InetAddress getLocalHost()

Returns local address object.

Returns:

InetAddress

getProcessCpuLoad

public double getProcessCpuLoad()

Returns current process CPU status.

Returns:

range (0.0~100.0%)

getSystemCpuLoad

public double getSystemCpuLoad()

Returns current system CPU status.

Returns:

range (0.0~100.0%)

getCommittedVirtualMemory

public long getCommittedVirtualMemory()

Returns the amount of virtual memory that is guaranteed to be available to the running process in bytes, or -1 if this operation is not supported.

Returns:

virtual memory

getFreePhysicalMemorySize

public long getFreePhysicalMemorySize()

Returns the amount of free physical memory in bytes.

Returns:

free physical memory size

getFreeSwapSpace

public long getFreeSwapSpace()

Returns free swap space.

Returns:

swap space

getProcessCpuTime

public long getProcessCpuTime()

Returns the CPU time used by the process on which the Java virtual machine is running in nanoseconds.

Returns:

When get no CPU time will return 0.

getTotalPhysicalMemory

public long getTotalPhysicalMemory()

Returns the total amount of physical memory in bytes.

Returns:

memory

getTotalSwapSpaceSize

public long getTotalSwapSpaceSize()

Returns the total amount of swap space in bytes.

Returns:

memory

getProcessMemoryLoad

public double getProcessMemoryLoad()

Returns current process memory status.

Returns:

range (0.0~100.0%)