Examples with SubscriptionInfo de.fraunhofer.iosb.ilt.faaast.service.model.messagebus.SubscriptionInfo used on opensource projects

Example 1 with SubscriptionInfo

use of de.fraunhofer.iosb.ilt.faaast.service.model.messagebus.SubscriptionInfo in project FAAAST-Service by FraunhoferIOSB.

the class MessageBusInternal method run.

/**
 * Take an EventMessage from the queue. Iterate over all subscribers and
 * check which filter applies and call the subscription handler
 */
@Override
public void run() {
    running.set(true);
    try {
        while (running.get()) {
            EventMessage message = messageQueue.take();
            Class<? extends EventMessage> messageType = message.getClass();
            for (SubscriptionInfo subscription : subscriptions.values()) {
                if (subscription.getSubscribedEvents().stream().anyMatch(x -> x.isAssignableFrom(messageType)) && subscription.getFilter().test(message.getElement())) {
                    subscription.getHandler().accept(message);
                }
            }
        }
    } catch (InterruptedException e) {
        Thread.currentThread().interrupt();
    }
}

Example 2 with SubscriptionInfo

use of de.fraunhofer.iosb.ilt.faaast.service.model.messagebus.SubscriptionInfo in project FAAAST-Service by FraunhoferIOSB.

the class AasServiceNodeManager method subscribeMessageBus.

/**
 * Subscribes to Events on the MessageBus (e.g. ValueChangeEvents).
 */
private void subscribeMessageBus() {
    try {
        if (messageBus != null) {
            logger.debug("subscribeMessageBus: subscribe ValueChangeEvents");
            SubscriptionInfo info = SubscriptionInfo.create(ValueChangeEventMessage.class, (t) -> {
                try {
                    valueChanged(t.getElement(), t.getNewValue(), t.getOldValue());
                } catch (StatusException ex2) {
                    logger.error("valueChanged Exception", ex2);
                }
            });
            SubscriptionId rv = messageBus.subscribe(info);
            subscriptions.add(rv);
            info = SubscriptionInfo.create(ElementCreateEventMessage.class, (x) -> {
                try {
                    elementCreated(x.getElement(), x.getValue());
                } catch (Exception ex3) {
                    logger.error("elementCreated Exception", ex3);
                }
            });
            rv = messageBus.subscribe(info);
            subscriptions.add(rv);
            info = SubscriptionInfo.create(ElementDeleteEventMessage.class, (x) -> {
                try {
                    elementDeleted(x.getElement());
                } catch (Exception ex3) {
                    logger.error("elementDeleted Exception", ex3);
                }
            });
            rv = messageBus.subscribe(info);
            subscriptions.add(rv);
            info = SubscriptionInfo.create(ElementUpdateEventMessage.class, (x) -> {
                try {
                    elementUpdated(x.getElement(), x.getValue());
                } catch (Exception ex3) {
                    logger.error("elementUpdated Exception", ex3);
                }
            });
            rv = messageBus.subscribe(info);
            subscriptions.add(rv);
        } else {
            logger.warn("MessageBus not available!");
        }
    } catch (Throwable ex) {
        logger.error("subscribeMessageBus Exception", ex);
        throw ex;
    }
}