stream.monitor

Class MemoryUsage

java.lang.Object

stream.monitor.MemoryUsage

All Implemented Interfaces:

Processor, Service, StatisticsService

public class MemoryUsage
extends Object
implements Processor, StatisticsService

A simple processor that provides statistics about the current Java VM memory usage.

Author:

Christian Bockermann <christian.bockermann@udo.edu>

Field Summary

Fields

Modifier and Type	Field and Description
(package private) String	key
(package private) AtomicLong	memoryUsed

Constructor Summary

Constructors

Constructor and Description
MemoryUsage()

Method Summary

Methods

Modifier and Type	Method and Description
String	getKey()
Statistics	getStatistics()
Data	process(Data input)
void	reset()
void	setKey(String key)

Methods inherited from class java.lang.Object

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

Field Detail

key

String key

memoryUsed

AtomicLong memoryUsed

Constructor Detail

MemoryUsage

public MemoryUsage()

Method Detail

getKey

public String getKey()

Returns:

the key

setKey

public void setKey(String key)

Parameters:

key - the key to set

reset

public void reset()
           throws Exception

Specified by:

reset in interface Service

Throws:

Exception

See Also:

Service.reset()

getStatistics

public Statistics getStatistics()

Specified by:

getStatistics in interface StatisticsService

See Also:

StatisticsService.getStatistics()

process

public Data process(Data input)

Specified by:

process in interface Processor

See Also:

Processor.process(stream.Data)