rsb.util.os

Class RuntimeOsUtilities

java.lang.Object

rsb.util.os.RuntimeOsUtilities

public final class RuntimeOsUtilities
extends Object

Utility class to retrieve OS and process information from a RuntimeMXBean instance. The dependency to this class is explicitly hidden via reflection to support Android devices, where the management package does not exist.

Author:

jwienke

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RuntimeOsUtilities.RuntimeNotAvailableException Indicates that a RuntimeMXBean instance is not available on this system.

Constructor Summary

Constructors

Constructor and Description
RuntimeOsUtilities() Creates a new instance.

Method Summary

Methods

Modifier and Type	Method and Description
List<String>	determineArguments() Returns the input arguments passed to the Java virtual machine which does not include the arguments to the main method.
String	determineHostName() Returns the host name of the computer the JVM designated by the RuntimeMXBean lives on.
Integer	determinePid() Returns the PID of the java process.
Long	determineStartTime() Returns the start time of the process in milliseconds.

Methods inherited from class java.lang.Object

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

Constructor Detail

RuntimeOsUtilities

public RuntimeOsUtilities()

Creates a new instance.

Method Detail

determineArguments

public List<String> determineArguments()

Returns the input arguments passed to the Java virtual machine which does not include the arguments to the main method. This method returns an empty list if there is no input argument to the Java virtual machine.

Returns:

list of arguments, null if no determinable on current system

determineStartTime

public Long determineStartTime()

Returns the start time of the process in milliseconds.

Returns:

start time in milliseconds unix epoch, null if no determinable on current system

determinePid

public Integer determinePid()

Returns the PID of the java process.

Returns:

pid of the process, null if no determinable on current system

determineHostName

public String determineHostName()

Returns the host name of the computer the JVM designated by the RuntimeMXBean lives on.

Returns:

host name, null if no determinable on current system

Throws:

IllegalArgumentException - in case the host name could not be parsed from the runtime environment