org.apache.james.util.watchdog
Class SchedulerWatchdogFactory

java.lang.Object
  org.apache.james.util.watchdog.SchedulerWatchdogFactory

All Implemented Interfaces:

WatchdogFactory

public class SchedulerWatchdogFactory
extends java.lang.Object
implements WatchdogFactory

This class is a factory to produce Watchdogs, each of which is associated with a single TimeScheduler Target and a TimeScheduler object. This could be used in James by adding a server configuration parameter: schedulerWatchdogs = conf.getChild("useSchedulerWatchdogs").getValueAsBoolean(false); getting the TimeScheduler component: scheduler = (TimeScheduler) compMgr.lookup(TimeScheduler.ROLE); and changing AbstractJamesService.getWatchdogFactory to look something like: protected WatchdogFactory getWatchdogFactory() { WatchdogFactory theWatchdogFactory = null; if (schedulerWatchdogs) { theWatchdogFactory = new SchedulerWatchdogFactory(scheduler, timeout); } else { theWatchdogFactory = new ThreadPerWatchdogFactory(threadPool, timeout); } if (theWatchdogFactory instanceof LogEnabled) { ((LogEnabled)theWatchdogFactory).enableLogging(getLogger()); } return theWatchdogFactory; }

Constructor Summary

SchedulerWatchdogFactory(org.apache.avalon.cornerstone.services.scheduler.TimeScheduler theTimeScheduler, long timeout)
Creates the factory and sets the TimeScheduler used to implement the watchdogs.

Method Summary

Watchdog

getWatchdog(WatchdogTarget theTarget) Gets a Watchdog

Methods inherited from class java.lang.Object

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

Constructor Detail

SchedulerWatchdogFactory

public SchedulerWatchdogFactory(org.apache.avalon.cornerstone.services.scheduler.TimeScheduler theTimeScheduler,
                                long timeout)

Creates the factory and sets the TimeScheduler used to implement the watchdogs.

Parameters:

theTimeScheduler - the scheduler that manages Watchdog triggering for Watchdogs produced by this factory

timeout - the timeout for Watchdogs produced by this factory

Method Detail

getWatchdog

public Watchdog getWatchdog(WatchdogTarget theTarget)

Description copied from interface: WatchdogFactory

Gets a Watchdog

Specified by:

getWatchdog in interface WatchdogFactory

Parameters:

theTarget - the WatchdogTarget to be triggered upon expiration

See Also:

WatchdogFactory.getWatchdog(WatchdogTarget)