com.bigdata.journal

Class PlatformStatsPlugIn

java.lang.Object

com.bigdata.journal.PlatformStatsPlugIn

All Implemented Interfaces:

IPlugIn<Journal,AbstractStatisticsCollector>

public class PlatformStatsPlugIn
extends Object
implements IPlugIn<Journal,AbstractStatisticsCollector>

IPlugin for collecting statistics from the operating system.

Author:

Bryan Thompson

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	PlatformStatsPlugIn.Options

Constructor Summary

Constructors

Constructor and Description
PlatformStatsPlugIn()

Method Summary

Methods

Modifier and Type	Method and Description
AbstractStatisticsCollector	getService() Return the service.
boolean	isRunning() Return true iff the service is running.
void	startService(Journal indexManager) Start the service.
void	stopService(boolean immediateShutdown) Stop the service.

Methods inherited from class java.lang.Object

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

Constructor Detail

PlatformStatsPlugIn

public PlatformStatsPlugIn()

Method Detail

startService

public void startService(Journal indexManager)

Start the service.

Start collecting performance counters from the OS (if enabled).

Specified by:

startService in interface IPlugIn<Journal,AbstractStatisticsCollector>

stopService

public void stopService(boolean immediateShutdown)

Stop the service.

NOP - Collection is on the JVM and the OS. If it is shutdown with each Journal shutdown, then collection would wind up disabled with the first Journal shutdown even if there is more than one open Journal.

Specified by:

stopService in interface IPlugIn<Journal,AbstractStatisticsCollector>

Parameters:

immediateShutdown - true if the service should be stopped immediately.

getService

public AbstractStatisticsCollector getService()

Description copied from interface: IPlugIn

Return the service.

Specified by:

getService in interface IPlugIn<Journal,AbstractStatisticsCollector>

isRunning

public boolean isRunning()

Description copied from interface: IPlugIn

Return true iff the service is running.

Specified by:

isRunning in interface IPlugIn<Journal,AbstractStatisticsCollector>