Examples with PreSubscriptionPlugin ddf.catalog.plugin.PreSubscriptionPlugin used on opensource projects

Example 1 with PreSubscriptionPlugin

use of ddf.catalog.plugin.PreSubscriptionPlugin in project ddf by codice.

the class EventProcessorImpl method createSubscription.

@Override
public void createSubscription(Subscription subscription, String subscriptionId) throws InvalidSubscriptionException, SubscriptionExistsException {
    String methodName = "createSubscription";
    LOGGER.debug("ENTERING: {}", methodName);
    LOGGER.debug("Creating Evaluation Criteria... ");
    try {
        for (PreSubscriptionPlugin plugin : preSubscription) {
            LOGGER.debug("Processing subscription with preSubscription plugin");
            subscription = plugin.process(subscription);
        }
        SubscriptionFilterVisitor visitor = new SubscriptionFilterVisitor();
        Predicate finalPredicate = (Predicate) subscription.accept(visitor, null);
        LOGGER.debug("predicate from filter visitor: {}", finalPredicate);
        String[] topics = new String[] { PubSubConstants.PUBLISHED_EVENT_TOPIC_NAME };
        Dictionary<String, String[]> props = new Hashtable<>(1, 1);
        props.put(EventConstants.EVENT_TOPIC, topics);
        ServiceRegistration serviceRegistration = bundleContext.registerService(EventHandler.class.getName(), new PublishedEventHandler(finalPredicate, subscription, preDelivery, catalog, threadPool), props);
        existingSubscriptions.put(subscriptionId, serviceRegistration);
        LOGGER.debug("Subscription {} created.", subscriptionId);
    } catch (Exception e) {
        LOGGER.info("Error while creating subscription predicate: ", e);
        throw new InvalidSubscriptionException(e);
    }
    LOGGER.debug("EXITING: {}", methodName);
}