Examples with EventListenerContext won.bot.framework.eventbot.EventListenerContext used on opensource projects

Example 16 with EventListenerContext

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

the class GroupCycleBot method initializeEventListeners.

@Override
protected void initializeEventListeners() {
    EventListenerContext ctx = getEventListenerContext();
    // start with a friendly message
    ctx.getEventBus().subscribe(InitializeEvent.class, new ActionOnFirstEventListener(ctx, new BaseEventBotAction(ctx) {

        @Override
        protected void doRun(Event event, EventListener executingListener) throws Exception {
            logger.info("");
            logger.info("We will create {} groups with {} members each.", NUMBER_OF_GROUPS, NUMBER_OF_GROUPMEMBERS);
            logger.info("The groups all be connected to each other, resulting in {} group-group connections", NUMBER_OF_GROUPS * (NUMBER_OF_GROUPS - 1) / 2);
            logger.info("Then, one group member will send a message to its group, which should reach all other group members exactly once");
            logger.info("This will result in {} messages being received.", NUMBER_OF_GROUPS * NUMBER_OF_GROUPMEMBERS - 1);
            logger.info("The groups will forward {} messages and suppress {} duplicates", NUMBER_OF_GROUPS * (NUMBER_OF_GROUPS + NUMBER_OF_GROUPMEMBERS - 2), (int) Math.pow(NUMBER_OF_GROUPS, 2) - 3 * NUMBER_OF_GROUPS + 2);
            logger.info("");
        }
    }));
    // understand message commands
    BotBehaviour messageCommandBehaviour = new ExecuteWonMessageCommandBehaviour(ctx);
    messageCommandBehaviour.activate();
    // if we receive a connection message, log it
    BotBehaviour logConnectionMessageBehaviour = new LogConnectionMessageBehaviour(ctx);
    logConnectionMessageBehaviour.activate();
    // log other important events (group/member creation and conneciton)
    BotBehaviour infoBehaviour = new OutputInfoMessagesBehaviour(ctx);
    infoBehaviour.activate();
    // wait for both groups to finish being set up, then connect the groups
    BehaviourBarrier barrier = new BehaviourBarrier(ctx);
    for (int i = 0; i < NUMBER_OF_GROUPS; i++) {
        // create group 1, its members, and connect them
        CreateGroupBehaviour groupCreate = new CreateGroupBehaviour(ctx);
        OpenOnConnectBehaviour groupOpenOnConnect = new OpenOnConnectBehaviour(ctx);
        CreateGroupMembersBehaviour groupMembers = new CreateGroupMembersBehaviour(ctx);
        groupCreate.onDeactivateActivate(groupOpenOnConnect, groupMembers);
        barrier.waitFor(groupMembers);
        // wait for the initialize event and trigger group creation
        ctx.getEventBus().subscribe(InitializeEvent.class, new ActionOnFirstEventListener(ctx, new BaseEventBotAction(ctx) {

            @Override
            protected void doRun(Event event, EventListener executingListener) throws Exception {
                groupCreate.activate();
            }
        }));
    }
    BotBehaviour connectGroupsBehaviour = new ConnectGroupsBehaviour(ctx);
    barrier.thenStart(connectGroupsBehaviour);
    barrier.activate();
    // after connecting the groups, send one message on behalf of one of the group members
    // and count the messages that group members receive
    // when all groups are connected, start the count behaviour
    CountReceivedMessagesBehaviour countReceivedMessagesBehaviour = new CountReceivedMessagesBehaviour(ctx);
    connectGroupsBehaviour.onDeactivateActivate(countReceivedMessagesBehaviour);
    // wait for the count behaviour to have started, then send the group message
    BotBehaviour sendInitialMessageBehaviour = new SendOneMessageBehaviour(ctx);
    countReceivedMessagesBehaviour.onActivateActivate(sendInitialMessageBehaviour);
}

Example 17 with EventListenerContext

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

the class GroupingBot method initializeEventListeners.

@Override
protected void initializeEventListeners() {
    final EventListenerContext ctx = getEventListenerContext();
    GroupBotContextWrapper botContextWrapper = (GroupBotContextWrapper) getBotContextWrapper();
    EventBus bus = getEventBus();
    // for each created need (in the group), add a listener that will auto-respond to messages directed at that need
    // create a filter that only accepts events for needs in the group:
    NeedUriInNamedListFilter groupMemberFilter = new NeedUriInNamedListFilter(ctx, botContextWrapper.getGroupMembersListName());
    // remember the auto-responders in a list
    this.autoResponders = new ArrayList<BaseEventListener>();
    // remember the listeners that wait for all messages
    this.messageCounters = new ArrayList<BaseEventListener>();
    // make a composite filter, with one filter for each autoResponder that wait for the FinishedEvents the responders emit.
    // that filter will be used to shut down all needs after all the autoResponders have finished.
    final OrFilter mainAutoResponderFilter = new OrFilter();
    // listen to NeedCreatedEvents
    this.autoResponderCreator = new ActionOnEventListener(ctx, groupMemberFilter, new BaseEventBotAction(ctx) {

        @Override
        protected void doRun(final Event event, EventListener executingListener) throws Exception {
            // create a listener that automatically answers messages, only for that need URI. We let it send NO_OF_MESSAGES messages
            logger.debug("created auto responder");
            AutomaticMessageResponderListener listener = new AutomaticMessageResponderListener(ctx, "autoResponder", NeedUriEventFilter.forEvent(event), NO_OF_MESSAGES, MILLIS_BETWEEN_MESSAGES);
            // create a listener that publishes a FinishedEvent after having received all messages from the group
            WaitForNEventsListener waitForMessagesListener = new WaitForNEventsListener(ctx, "messageCounter", NeedUriEventFilter.forEvent(event), NO_OF_MESSAGES * (NO_OF_GROUPMEMBERS - 1));
            messageCounters.add(waitForMessagesListener);
            // add a filter that will wait for the FinishedEvent emitted by that listener
            // wrap it in an acceptonce filter to make extra sure we count each listener only once.
            mainAutoResponderFilter.addFilter(new AcceptOnceFilter(new FinishedEventFilter(waitForMessagesListener)));
            ActionOnEventListener debugger = new ActionOnEventListener(ctx, NeedUriEventFilter.forEvent(event), new BaseEventBotAction(ctx) {

                @Override
                protected void doRun(Event event, EventListener executingListener) throws Exception {
                    if (event instanceof MessageFromOtherNeedEvent) {
                        MessageFromOtherNeedEvent msg = (MessageFromOtherNeedEvent) event;
                        logger.debug("processing event {} wonMessage {} - text message '{}', sent by {} to {}", new Object[] { event.toString(), msg.getWonMessage().getMessageURI(), WonRdfUtils.MessageUtils.getTextMessage(msg.getWonMessage()), msg.getRemoteNeedURI(), msg.getNeedURI() });
                    }
                }
            });
            getEventBus().subscribe(MessageFromOtherNeedEvent.class, debugger);
            // finally, subscribe to the message events
            getEventBus().subscribe(MessageFromOtherNeedEvent.class, waitForMessagesListener);
            getEventBus().subscribe(MessageFromOtherNeedEvent.class, listener);
        }
    });
    getEventBus().subscribe(NeedCreatedEvent.class, this.autoResponderCreator);
    // count until N needs were created, then create need with group facet (the others will connect to that facet)
    this.groupCreator = new ActionOnceAfterNEventsListener(ctx, "groupCreator", NO_OF_GROUPMEMBERS, new CreateNeedWithFacetsAction(ctx, botContextWrapper.getGroupListName(), FacetType.GroupFacet.getURI()));
    bus.subscribe(NeedCreatedEvent.class, this.groupCreator);
    // wait for N+1 needCreatedEvents, then connect the members with the group facet of the third need
    this.needConnector = new ActionOnceAfterNEventsListener(ctx, "needConnector", NO_OF_GROUPMEMBERS + 1, new ConnectFromListToListAction(ctx, botContextWrapper.getGroupListName(), botContextWrapper.getGroupMembersListName(), FacetType.GroupFacet.getURI(), FacetType.OwnerFacet.getURI(), MILLIS_BETWEEN_MESSAGES, "Hi from the " + "GroupingBot!"));
    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, new OpenConnectionAction(ctx, "Hi from the GroupingBot!"));
    bus.subscribe(ConnectFromOtherNeedEvent.class, this.autoOpener);
    // now, once all connections have been opened, make 1 bot send a message to the group, the subsequent listener will cause let wild chatting to begin
    this.conversationStarter = new ActionOnceAfterNEventsListener(ctx, "conversationStarter", NO_OF_GROUPMEMBERS, new RespondToMessageAction(ctx, MILLIS_BETWEEN_MESSAGES));
    bus.subscribe(OpenFromOtherNeedEvent.class, this.conversationStarter);
    // for each group member, there are 2 listeners waiting for messages. when they are all finished, we're done.
    this.messagesDoneListener = new ActionOnceAfterNEventsListener(ctx, "messagesDoneListener", mainAutoResponderFilter, NO_OF_GROUPMEMBERS, new DeactivateAllNeedsOfListAction(ctx, botContextWrapper.getGroupMembersListName()));
    bus.subscribe(FinishedEvent.class, this.messagesDoneListener);
    // When the group facet need is deactivated, all connections are closed. wait for the close events and signal work done.
    this.workDoneSignaller = new ActionOnceAfterNEventsListener(ctx, "workDoneSignaller", NO_OF_GROUPMEMBERS, new SignalWorkDoneAction(ctx));
    bus.subscribe(CloseFromOtherNeedEvent.class, this.workDoneSignaller);
    // start the whole thing:
    // create needs every trigger execution until N needs are created
    this.groupMemberCreator = new ActionOnEventListener(ctx, "groupMemberCreator", new CreateNeedWithFacetsAction(ctx, botContextWrapper.getGroupMembersListName(), FacetType.OwnerFacet.getURI()), NO_OF_GROUPMEMBERS);
    bus.subscribe(ActEvent.class, this.groupMemberCreator);
}

Example 18 with EventListenerContext

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

the class LastSeenNeedsMatcherBot 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);
    bus.subscribe(NeedCreatedEventForMatcher.class, new ActionOnEventListener(ctx, "lastSeenNeedsMatcher", new BaseEventBotAction(ctx) {

        @Override
        protected void doRun(final Event event, EventListener executingListener) throws Exception {
            NeedCreatedEventForMatcher needCreatedEvent = (NeedCreatedEventForMatcher) event;
            URI currentNeedURI = needCreatedEvent.getNeedURI();
            URI lastNeedURI = lastNeedUriReference.getAndSet(currentNeedURI);
            URI originator = matcherUri;
            if (lastNeedURI == null) {
                logger.info("First invocation. Remembering {} for matching it later", currentNeedURI);
                return;
            } else {
                logger.info("Sending hint for {} and {}", currentNeedURI, lastNeedURI);
            }
            ctx.getMatcherProtocolNeedServiceClient().hint(currentNeedURI, lastNeedURI, 0.5, originator, null, createWonMessage(currentNeedURI, lastNeedURI, 0.5, originator));
            ctx.getMatcherProtocolNeedServiceClient().hint(lastNeedURI, currentNeedURI, 0.5, originator, null, createWonMessage(lastNeedURI, currentNeedURI, 0.5, originator));
        }
    }));
}

Example 19 with EventListenerContext

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

the class RandomSimulatorBot method initializeEventListeners.

@Override
protected void initializeEventListeners() {
    final EventListenerContext ctx = getEventListenerContext();
    EventBus bus = getEventBus();
    final Counter needCreationSuccessfulCounter = new CounterImpl("needsCreated");
    final Counter needCreationFailedCounter = new CounterImpl("needCreationFailed");
    final Counter needCreationStartedCounter = new CounterImpl("creationStarted");
    final Counter creationUnfinishedCounter = new CounterImpl("creationUnfinished");
    // create the first need when the first actEvent happens
    this.groupMemberCreator = new ActionOnceAfterNEventsListener(ctx, "groupMemberCreator", 1, new MultipleActions(ctx, new IncrementCounterAction(ctx, needCreationStartedCounter), new IncrementCounterAction(ctx, creationUnfinishedCounter), new CreateNeedWithFacetsAction(ctx, getBotContextWrapper().getNeedCreateListName())));
    bus.subscribe(ActEvent.class, this.groupMemberCreator);
    // when a need is created (or it failed), decrement the creationUnfinishedCounter
    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);
    // 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)));
    // print a logging message every N needs
    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 >= 200) {
                logger.info("started creation of {} needs, creation not yet finished for {}. Successful: {}, failed: {}", new Object[] { cnt, unfinishedCount, successCnt, failedCnt });
                lastOutput = cnt;
            }
        }
    }));
    // each time a need was created, wait for a random interval, then create another one
    bus.subscribe(NeedCreatedEvent.class, new ActionOnEventListener(ctx, new RandomDelayedAction(ctx, MIN_NEXT_CREATION_TIMEOUT_MILLIS, MAX_NEXT_CREATION_TIMEOUT_MILLIS, this.hashCode(), new CreateNeedWithFacetsAction(ctx, getBotContextWrapper().getNeedCreateListName()))));
    // when a hint is received, connect fraction of the cases after a random timeout
    bus.subscribe(HintFromMatcherEvent.class, new ActionOnEventListener(ctx, "hint-reactor", new RandomDelayedAction(ctx, MIN_RECATION_TIMEOUT_MILLIS, MAX_REACTION_TIMEOUT_MILLIS, (long) this.hashCode(), new MultipleActions(ctx, new SendFeedbackForHintAction(ctx), new ProbabilisticSelectionAction(ctx, PROB_OPEN_ON_HINT, (long) this.hashCode(), new OpenConnectionAction(ctx, "Hi!"), new CloseConnectionAction(ctx, "Bye!"))))));
    // when an open or connect is received, send message or close randomly after a random timeout
    EventListener opener = new ActionOnEventListener(ctx, "open-reactor", new RandomDelayedAction(ctx, MIN_RECATION_TIMEOUT_MILLIS, MAX_REACTION_TIMEOUT_MILLIS, (long) this.hashCode(), new ProbabilisticSelectionAction(ctx, PROB_MESSAGE_ON_OPEN, (long) this.hashCode(), new OpenConnectionAction(ctx, "Hi!"), new CloseConnectionAction(ctx, "Bye!"))));
    bus.subscribe(OpenFromOtherNeedEvent.class, opener);
    bus.subscribe(ConnectFromOtherNeedEvent.class, opener);
    // when an open is received, send message or close randomly after a random timeout
    EventListener replyer = new ActionOnEventListener(ctx, "message-reactor", new RandomDelayedAction(ctx, MIN_RECATION_TIMEOUT_MILLIS, MAX_REACTION_TIMEOUT_MILLIS, (long) this.hashCode(), new ProbabilisticSelectionAction(ctx, PROB_MESSAGE_ON_MESSAGE, (long) this.hashCode(), new SendMessageAction(ctx), new CloseConnectionAction(ctx, "Bye!"))));
    bus.subscribe(MessageFromOtherNeedEvent.class, replyer);
    bus.subscribe(OpenFromOtherNeedEvent.class, replyer);
    // When the needproducer is exhausted, stop.
    this.workDoneSignaller = new ActionOnEventListener(ctx, "workDoneSignaller", new SignalWorkDoneAction(ctx), 1);
    bus.subscribe(NeedProducerExhaustedEvent.class, this.workDoneSignaller);
}

Example 20 with EventListenerContext

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

the class StandardTwoPhaseCommitBot 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);
    // wait for N NeedCreatedEvents
    creationWaiter = new WaitForNEventsListener(ctx, noOfNeeds);
    bus.subscribe(NeedCreatedEvent.class, creationWaiter);
    // when done, connect the participants to the coordinator
    this.needConnector = new ActionOnEventListener(ctx, "needConnector", new FinishedEventFilter(creationWaiter), new ConnectFromListToListAction(ctx, botContextWrapper.getCoordinatorListName(), botContextWrapper.getParticipantListName(), FacetType.CoordinatorFacet.getURI(), FacetType.ParticipantFacet.getURI(), MILLIS_BETWEEN_MESSAGES, "Hi!"), 1);
    bus.subscribe(FinishedEvent.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, new NeedUriInNamedListFilter(ctx, botContextWrapper.getParticipantListName()), new OpenConnectionAction(ctx, "Hi!"));
    bus.subscribe(ConnectFromOtherNeedEvent.class, this.autoOpener);
    // after the last connect event, all connections are closed!
    this.participantDeactivator = new ActionOnEventListener(ctx, "participantDeactivator", new NeedUriInNamedListFilter(ctx, botContextWrapper.getParticipantListName()), new TwoPhaseCommitDeactivateOnCloseAction(ctx), noOfNeeds - 1);
    bus.subscribe(CloseFromOtherNeedEvent.class, this.participantDeactivator);
    coordinatorDeactivator = new ActionOnEventListener(ctx, "coordinatorDeactivator", new FinishedEventFilter(participantDeactivator), new DeactivateAllNeedsOfListAction(ctx, botContextWrapper.getCoordinatorListName()), 1);
    bus.subscribe(FinishedEvent.class, coordinatorDeactivator);
    // 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);
}