org.apache.james.util.watchdog
Class SchedulerWatchdogFactory

java.lang.Object
  |
  +--org.apache.james.util.watchdog.SchedulerWatchdogFactory

All Implemented Interfaces:

WatchdogFactory

public class SchedulerWatchdogFactory

extends 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; }

Author:

Peter M. Goldstein

Constructor Summary

SchedulerWatchdogFactory(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(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)