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

Example 26 with EventBus

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

the class EchoBot method initializeEventListeners.

@Override
protected void initializeEventListeners() {
    EventListenerContext ctx = getEventListenerContext();
    EventBus bus = getEventBus();
    // register with WoN nodes, be notified when new needs are created
    RegisterMatcherAction registerMatcherAction = new RegisterMatcherAction(ctx);
    this.matcherRegistrator = new ActionOnEventListener(ctx, registerMatcherAction, 1);
    bus.subscribe(ActEvent.class, this.matcherRegistrator);
    RandomDelayedAction delayedRegistration = new RandomDelayedAction(ctx, registrationMatcherRetryInterval, registrationMatcherRetryInterval, 0, registerMatcherAction);
    ActionOnEventListener matcherRetryRegistrator = new ActionOnEventListener(ctx, delayedRegistration);
    bus.subscribe(MatcherRegisterFailedEvent.class, matcherRetryRegistrator);
    // create the echo need - if we're not reacting to the creation of our own echo need.
    this.needCreator = new ActionOnEventListener(ctx, new NotFilter(new NeedUriInNamedListFilter(ctx, ctx.getBotContextWrapper().getNeedCreateListName())), prepareCreateNeedAction(ctx));
    bus.subscribe(NeedCreatedEventForMatcher.class, this.needCreator);
    // as soon as the echo need is created, connect to original
    this.needConnector = new ActionOnEventListener(ctx, "needConnector", new RandomDelayedAction(ctx, 5000, 5000, 1, new ConnectWithAssociatedNeedAction(ctx, FacetType.OwnerFacet.getURI(), FacetType.OwnerFacet.getURI(), "Greetings! I am the EchoBot! I will repeat everything you say, which you might " + "find useful for testing purposes.")));
    bus.subscribe(NeedCreatedEvent.class, this.needConnector);
    // add a listener that auto-responds to messages by a message
    // after 10 messages, it unsubscribes from all events
    // subscribe it to:
    // * message events - so it responds
    // * open events - so it initiates the chain reaction of responses
    this.autoResponder = new ActionOnEventListener(ctx, new RespondWithEchoToMessageAction(ctx));
    bus.subscribe(OpenFromOtherNeedEvent.class, this.autoResponder);
    bus.subscribe(MessageFromOtherNeedEvent.class, this.autoResponder);
    bus.subscribe(CloseFromOtherNeedEvent.class, new ActionOnEventListener(ctx, new LogAction(ctx, "received close message from remote need.")));
}

Example 27 with EventBus

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

the class MatcherProtocolTestBot method initializeEventListeners.

@Override
protected void initializeEventListeners() {
    EventListenerContext ctx = getEventListenerContext();
    EventBus bus = getEventBus();
    // subscribe this bot with the WoN nodes' 'new need' topic
    RegisterMatcherAction registerMatcherAction = new RegisterMatcherAction(ctx);
    this.matcherRegistrator = new ActionOnEventListener(ctx, registerMatcherAction, 1);
    bus.subscribe(ActEvent.class, this.matcherRegistrator);
    RandomDelayedAction delayedRegistration = new RandomDelayedAction(ctx, registrationMatcherRetryInterval, registrationMatcherRetryInterval, 0, registerMatcherAction);
    ActionOnEventListener matcherRetryRegistrator = new ActionOnEventListener(ctx, delayedRegistration);
    bus.subscribe(MatcherRegisterFailedEvent.class, matcherRetryRegistrator);
    // create needs every trigger execution until 2 needs are created
    this.needCreator = new ActionOnEventListener(ctx, new CreateNeedWithFacetsAction(ctx, getBotContextWrapper().getNeedCreateListName()), NO_OF_NEEDS);
    bus.subscribe(MatcherRegisteredEvent.class, new ActionOnEventListener(ctx, new BaseEventBotAction(ctx) {

        @Override
        protected void doRun(final Event event, EventListener executingListener) throws Exception {
            getEventListenerContext().getEventBus().subscribe(ActEvent.class, needCreator);
        }
    }, 1));
    this.matcherNotifier = new ActionOnceAfterNEventsListener(ctx, 4, new LogAction(ctx, "Received all events for newly created needs."));
    bus.subscribe(NeedCreatedEventForMatcher.class, matcherNotifier);
    bus.subscribe(NeedCreatedEvent.class, matcherNotifier);
    this.matcher = new ActionOnceAfterNEventsListener(ctx, NO_OF_NEEDS, new MatchNeedsAction(ctx));
    // count until 1 need is created, then create a comment facet
    bus.subscribe(NeedCreatedEvent.class, this.matcher);
    this.allNeedsDeactivator = new ActionOnEventListener(ctx, new DeactivateAllNeedsAction(ctx), 1);
    bus.subscribe(HintFromMatcherEvent.class, this.allNeedsDeactivator);
    this.workDoneSignaller = new ActionOnceAfterNEventsListener(ctx, 4, new SignalWorkDoneAction(ctx));
    bus.subscribe(NeedDeactivatedEvent.class, this.workDoneSignaller);
    bus.subscribe(NeedDeactivatedEventForMatcher.class, this.workDoneSignaller);
}

Example 28 with EventBus

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

the class NeedCreatorBot method initializeEventListeners.

@Override
protected void initializeEventListeners() {
    final EventListenerContext ctx = getEventListenerContext();
    final EventBus bus = getEventBus();
    final Counter needCreationSuccessfulCounter = new CounterImpl("needsCreated");
    final Counter needCreationFailedCounter = new CounterImpl("needCreationFailed");
    final Counter needCreationStartedCounter = new CounterImpl("creationStarted");
    // create a targeted counter that will publish an event when the target is reached
    // in this case, 0 unfinished need creations means that all needs were created
    final Counter creationUnfinishedCounter = new TargetCounterDecorator(ctx, new CounterImpl("creationUnfinished"), 0);
    // create needs every trigger execution until the need producer is exhausted
    this.groupMemberCreator = new ActionOnEventListener(ctx, "groupMemberCreator", new MultipleActions(ctx, new IncrementCounterAction(ctx, needCreationStartedCounter), new IncrementCounterAction(ctx, creationUnfinishedCounter), new CreateNeedWithFacetsAction(ctx, getBotContextWrapper().getNeedCreateListName())), -1);
    bus.subscribe(ActEvent.class, this.groupMemberCreator);
    bus.subscribe(NeedCreatedEvent.class, new ActionOnEventListener(ctx, "logger", new BaseEventBotAction(ctx) {

        int lastOutput = 0;

        @Override
        protected void doRun(final Event event, EventListener executingListener) throws Exception {
            int cnt = needCreationStartedCounter.getCount();
            int unfinishedCount = creationUnfinishedCounter.getCount();
            int successCnt = needCreationSuccessfulCounter.getCount();
            int failedCnt = needCreationFailedCounter.getCount();
            if (cnt - lastOutput >= 1) {
                logger.info("started creation of {} needs, creation not yet finished for {}. Successful: {}, failed: {}", new Object[] { cnt, unfinishedCount, successCnt, failedCnt });
                lastOutput = cnt;
            }
        }
    }));
    // When the needproducer is exhausted, stop the creator.
    getEventBus().subscribe(NeedProducerExhaustedEvent.class, new ActionOnEventListener(ctx, new UnsubscribeListenerAction(ctx, groupMemberCreator)));
    // also, keep track of what worked and what didn't
    bus.subscribe(NeedCreationFailedEvent.class, new ActionOnEventListener(ctx, new IncrementCounterAction(ctx, needCreationFailedCounter)));
    bus.subscribe(NeedCreatedEvent.class, new ActionOnEventListener(ctx, new IncrementCounterAction(ctx, needCreationSuccessfulCounter)));
    // when a need is created (or it failed), decrement the halfCreatedNeed counter
    EventListener downCounter = new ActionOnEventListener(ctx, "downCounter", new DecrementCounterAction(ctx, creationUnfinishedCounter));
    // count a successful need creation
    bus.subscribe(NeedCreatedEvent.class, downCounter);
    // if a creation failed, we don't want to keep us from keeping the correct count
    bus.subscribe(NeedCreationFailedEvent.class, downCounter);
    // we count the one execution when the creator realizes that the producer is exhausted, we have to count down
    // once for that, too.
    bus.subscribe(NeedProducerExhaustedEvent.class, downCounter);
    EventListener loadTestMonitor = new ActionOnEventListener(ctx, "loadTestMonitor", new MatchingLoadTestMonitorAction(ctx));
    bus.subscribe(NeedCreatedEvent.class, loadTestMonitor);
    bus.subscribe(HintFromMatcherEvent.class, loadTestMonitor);
// wait for the targetCountReached event of the finishedCounter. We don't use
// another target counter, so we don't need to do more filtering.
// this.workDoneSignaller = new ActionOnEventListener(
// ctx, "workDoneSignaller",
// new SignalWorkDoneAction(ctx));
// bus.subscribe(TargetCountReachedEvent.class, this.workDoneSignaller);
}

Example 29 with EventBus

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

the class BAAtomicBaseBot 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);
    FinishedEventFilter coordinatorCreatorFilter = new FinishedEventFilter(coordinatorNeedCreator);
    final Iterator<TwoPhaseScript> 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 firstPhaseScriptListenerFilter = new OrFilter();
    final OrFilter secondPhaseScriptListenerFilter = 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) {
            TwoPhaseScript script = scriptIterator.next();
            // create the listener that will execute the script actions
            BATestScriptListener testScriptListener = new BATestScriptListener(ctx, script.getFirstPhaseScript(), fromNeedURI, toNeedURI, MILLIS_BETWEEN_MESSAGES);
            // 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.
            firstPhaseScriptListenerFilter.addFilter(new AcceptOnceFilter(new FinishedEventFilter(testScriptListener)));
            // now we create the listener that is only active in the second phase
            // remember it so we can check its state later
            BATestScriptListener secondPhaseTestScriptListener = new BATestScriptListener(ctx, script.getSecondPhaseScript(), fromNeedURI, toNeedURI, MILLIS_BETWEEN_MESSAGES);
            // remember both listeners as a pair as we'll need them together later
            TwoPhaseScriptListener twoPhaseScriptListener = new TwoPhaseScriptListener(testScriptListener, secondPhaseTestScriptListener);
            scriptListeners.add(twoPhaseScriptListener);
            secondPhaseScriptListenerFilter.addFilter(new AcceptOnceFilter(new FinishedEventFilter(secondPhaseTestScriptListener)));
        }
    };
    // 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.firstPhaseDoneListener = new ActionOnceAfterNEventsListener(ctx, "firstPhaseDoneListener", firstPhaseScriptListenerFilter, noOfNeeds - 1, new BaseEventBotAction(ctx) {

        @Override
        protected void doRun(final Event event, EventListener executingListener) throws Exception {
            logger.debug("starting second phase");
            for (TwoPhaseScriptListener listener : scriptListeners) {
                logger.debug("subscribing second phase listener {}", listener);
                // subscribe it to the relevant events.
                bus.subscribe(MessageFromOtherNeedEvent.class, listener.getSecondPhaseListener());
                bus.subscribe(SecondPhaseStartedEvent.class, listener.getSecondPhaseListener());
                listener.getSecondPhaseListener().setCoordinatorSideConnectionURI(listener.getFirstPhaseListener().getCoordinatorSideConnectionURI());
                listener.getSecondPhaseListener().setParticipantSideConnectionURI(listener.getFirstPhaseListener().getParticipantSideConnectionURI());
                listener.getSecondPhaseListener().updateFilterForBothConnectionURIs();
                bus.publish(new SecondPhaseStartedEvent(listener.getFirstPhaseListener().getCoordinatorURI(), listener.getFirstPhaseListener().getCoordinatorSideConnectionURI(), listener.getFirstPhaseListener().getParticipantURI()));
            }
        }
    });
    bus.subscribe(FinishedEvent.class, this.firstPhaseDoneListener);
    // 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", secondPhaseScriptListenerFilter, 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);
}

Example 30 with EventBus

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

the class StandardTwoPhaseCommitNoVoteBot method initializeEventListeners.

@Override
protected void initializeEventListeners() {
    EventListenerContext ctx = getEventListenerContext();
    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(), FacetType.ParticipantFacet.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(), FacetType.CoordinatorFacet.getURI()), 1);
    bus.subscribe(FinishedEvent.class, this.coordinatorNeedCreator);
    // when done, connect the participants to the coordinator
    this.needConnector = new ActionOnceAfterNEventsListener(ctx, "needConnector", noOfNeeds, new ConnectFromListToListAction(ctx, botContextWrapper.getCoordinatorListName(), botContextWrapper.getParticipantListName(), FacetType.CoordinatorFacet.getURI(), FacetType.ParticipantFacet.getURI(), MILLIS_BETWEEN_MESSAGES, "Hi!"));
    bus.subscribe(NeedCreatedEvent.class, this.needConnector);
    // add a listener that is informed of the connect/open events and that auto-opens
    // subscribe it to:
    // * connect events - so it responds with open
    // * open events - so it responds with open (if the open received was the first open, and we still need to accept the connection)
    this.autoOpener = new ActionOnEventListener(ctx, "autoOpener", new OpenConnectionAction(ctx, "Hi!"));
    bus.subscribe(OpenFromOtherNeedEvent.class, this.autoOpener);
    bus.subscribe(ConnectFromOtherNeedEvent.class, this.autoOpener);
    this.autoCloser = new ActionOnceAfterNEventsListener(ctx, "autoCloser", noOfNeeds - 3, new CloseConnectionAction(ctx, "Bye!"));
    bus.subscribe(ConnectFromOtherNeedEvent.class, this.autoCloser);
    // after the last connect event, all connections are closed!
    this.needDeactivator = new ActionOnEventListener(ctx, new TwoPhaseCommitNoVoteDeactivateAllNeedsAction(ctx), 1);
    bus.subscribe(CloseFromOtherNeedEvent.class, this.needDeactivator);
    // add a listener that counts two NeedDeactivatedEvents and then tells the
    // framework that the bot's work is done
    this.workDoneSignaller = new ActionOnceAfterNEventsListener(ctx, noOfNeeds, new SignalWorkDoneAction(ctx));
    bus.subscribe(NeedDeactivatedEvent.class, this.workDoneSignaller);
}