edu.wisc.ssec.mcidasv.util

Class GetMem

java.lang.Object

edu.wisc.ssec.mcidasv.util.GetMem

public class GetMem
extends Object

Wrapper for OperatingSystemMXBean.

Note: this class is likely to be used in contexts where we don't have logging set up, so System.err and System.out are used.

Constructor Summary

Constructors

Constructor and Description
GetMem()

Method Summary

Modifier and Type	Method and Description
private <T> T	callMXBeanMethod(String methodName, T defaultValue) Call a method belonging to OperatingSystemMXBean and return the result.
static String	getMemory() Get total system memory and print it out--accounts for 32bit JRE limitation of 1.5GB.
static void	main(String[] args) The main.

Methods inherited from class java.lang.Object

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

Constructor Detail

GetMem

public GetMem()

Method Detail

callMXBeanMethod

private <T> T callMXBeanMethod(String methodName,
                               T defaultValue)

Call a method belonging to OperatingSystemMXBean and return the result.

Type Parameters:

T - Type of the expected return and defaultValue.

Parameters:

methodName - Name of OperatingSystemMXBean method to call. Cannot be null or empty.

defaultValue - Value returned if methodName call fails.

Returns:

Either the value returned by the methodName call, or defaultValue.

getMemory

public static String getMemory()

Get total system memory and print it out--accounts for 32bit JRE limitation of 1.5GB.

Returns:

String representation of the total amount of system memory.

main

public static void main(String[] args)

The main. Get total system memory and print it out.

Parameters:

args - Ignored.