Examples with EventBus won.bot.framework.eventbot.bus.EventBus used on opensource projects

Example 31 with EventBus

use of won.bot.framework.eventbot.bus.EventBus in project webofneeds by researchstudio-sat.

the class BABaseBot method initializeEventListeners.

@Override
protected void initializeEventListeners() {
    final EventListenerContext ctx = getEventListenerContext();
    final EventBus bus = getEventBus();
    ParticipantCoordinatorBotContextWrapper botContextWrapper = (ParticipantCoordinatorBotContextWrapper) getBotContextWrapper();
    // create needs every trigger execution until noOfNeeds are created
    this.participantNeedCreator = new ActionOnEventListener(ctx, "participantCreator", new CreateNeedWithFacetsAction(ctx, botContextWrapper.getParticipantListName(), getParticipantFacetType().getURI()), noOfNeeds - 1);
    bus.subscribe(ActEvent.class, this.participantNeedCreator);
    // when done, create one coordinator need
    this.coordinatorNeedCreator = new ActionOnEventListener(ctx, "coordinatorCreator", new FinishedEventFilter(participantNeedCreator), new CreateNeedWithFacetsAction(ctx, botContextWrapper.getCoordinatorListName(), getCoordinatorFacetType().getURI()), 1);
    bus.subscribe(FinishedEvent.class, this.coordinatorNeedCreator);
    final Iterator<BATestBotScript> scriptIterator = scripts.iterator();
    // make a composite filter, with one filter for each testScriptListener that wait
    // for the FinishedEvents the they emit. That filter will be used to shut
    // down all needs after all the scriptListeners have finished.
    final OrFilter mainScriptListenerFilter = new OrFilter();
    // create a callback that gets called immediately before the connection is established
    ConnectFromListToListAction.ConnectHook scriptConnectHook = new ConnectFromListToListAction.ConnectHook() {

        @Override
        public void onConnect(final URI fromNeedURI, final URI toNeedURI) {
            // create the listener that will execute the script actions
            BATestScriptListener testScriptListener = new BATestScriptListener(ctx, scriptIterator.next(), fromNeedURI, toNeedURI, MILLIS_BETWEEN_MESSAGES);
            // remember it so we can check its state later
            testScriptListeners.add(testScriptListener);
            // subscribe it to the relevant events.
            bus.subscribe(ConnectFromOtherNeedEvent.class, testScriptListener);
            bus.subscribe(OpenFromOtherNeedEvent.class, testScriptListener);
            bus.subscribe(MessageFromOtherNeedEvent.class, testScriptListener);
            // add a filter that will wait for the FinishedEvent emitted by that listener
            // wrap it in an acceptance filter to make extra sure we count each listener only once.
            mainScriptListenerFilter.addFilter(new AcceptOnceFilter(new FinishedEventFilter(testScriptListener)));
        }
    };
    // when done, connect the participants to the coordinator
    this.needConnector = new ActionOnceAfterNEventsListener(ctx, "needConnector", noOfNeeds, new ConnectFromListToListAction(ctx, botContextWrapper.getCoordinatorListName(), botContextWrapper.getParticipantListName(), getCoordinatorFacetType().getURI(), getParticipantFacetType().getURI(), MILLIS_BETWEEN_MESSAGES, scriptConnectHook, "Hi!"));
    bus.subscribe(NeedCreatedEvent.class, this.needConnector);
    // for each group member, there are 2 listeners waiting for messages. when they are all finished, we're done.
    this.scriptsDoneListener = new ActionOnceAfterNEventsListener(ctx, "scriptsDoneListener", mainScriptListenerFilter, noOfNeeds - 1, new DeactivateAllNeedsOfListAction(ctx, botContextWrapper.getParticipantListName()));
    bus.subscribe(FinishedEvent.class, this.scriptsDoneListener);
    // When the needs are deactivated, all connections are closed. wait for the close events and signal work done.
    this.workDoneSignaller = new ActionOnceAfterNEventsListener(ctx, "workDoneSignaller", noOfNeeds - 1, new SignalWorkDoneAction(ctx));
    bus.subscribe(CloseFromOtherNeedEvent.class, this.workDoneSignaller);
}