/**
* Update the waiting threads according to the wakeup reason (dispatched element). The
* corresponding waiting activity/thread is notified.
*/
public void updateWaitingThreads() {
if (waittimes != null) {
// IClockService clock =
// (IClockService)interpreter.getServiceProvider().getService(IClockService.class);
IClockService clock = interpreter.getClockService();
for (Iterator it = waittimes.keySet().iterator(); it.hasNext(); ) {
ProcessThread thread = (ProcessThread) it.next();
if (((Number) waittimes.get(thread)).longValue() <= clock.getTime()) {
it.remove();
assert thread.isWaiting();
BpmnPlanBodyInstance.this.notify(
thread.getActivity(),
thread,
AbstractEventIntermediateTimerActivityHandler.TIMER_EVENT);
}
}
}
Object dispelem = state.getAttributeValue(rplan, OAVBDIRuntimeModel.plan_has_dispatchedelement);
// System.out.println("dispatched: "+dispelem);
if (dispelem != null) {
for (Iterator it = context.getAllThreads().iterator(); it.hasNext(); ) {
ProcessThread thread = (ProcessThread) it.next();
try {
if (thread.isWaiting() && thread.getWaitFilter().filter(dispelem)) {
BpmnPlanBodyInstance.this.notify(thread.getActivity(), thread, getFlyweight(dispelem));
}
} catch (Exception e) {
// just catch filter exceptions.
}
}
}
}
/**
* Add a timer for a thread.
*
* @param thread The process thread that should wait.
* @param duration The duration to wait for.
*/
public void addTimer(final ProcessThread thread, final long duration) {
assert duration == EventIntermediateTimerActivityHandler.TICK_TIMER || duration >= 0;
if (waittimes == null) waittimes = new HashMap();
// how to support tick timer?
if (duration == EventIntermediateTimerActivityHandler.TICK_TIMER)
throw new UnsupportedOperationException("Tick timers for bdi-bpmn have to be implemented.");
// todo: check if asynchronous handling of waittimes is a problem?
IClockService clock = interpreter.getClockService();
Long ret = new Long(clock.getTime() + duration);
waittimes.put(thread, ret);
// SServiceProvider.getService(interpreter.getServiceProvider(), IClockService.class)
// .addResultListener(interpreter.createResultListener(new DefaultResultListener()
// {
// public void resultAvailable(Object source, Object result)
// {
// IClockService clock = (IClockService)result;
// Long ret = new Long(clock.getTime()+duration);
// waittimes.put(thread, ret);
// }
// }));
}
/**
* Get the current timeout of the process, i.e. the remaining time of the closest due intermediate
* timer event.
*
* @return The current timeout or -1 for no timeout.
*/
public long getTimeout() {
long mindur = -1;
if (waittimes != null) {
String pool = getPool(getLastState());
if (!POOL_UNDEFINED.equals(pool)) {
IClockService clock = interpreter.getClockService();
// IClockService clock =
// (IClockService)interpreter.getServiceProvider().getService(IClockService.class);
for (Iterator it = waittimes.keySet().iterator(); it.hasNext(); ) {
ProcessThread thread = (ProcessThread) it.next();
if (thread.belongsTo(pool, null)) {
long time = Math.max(((Number) waittimes.get(thread)).longValue() - clock.getTime(), 0);
mindur = mindur == -1 ? time : time < mindur ? time : mindur;
}
}
}
}
return mindur;
}
