Examples with Publisher com.tangosol.net.topic.Publisher used on opensource projects

Example 1 with Publisher

use of com.tangosol.net.topic.Publisher in project coherence-spring by coherence-community.

the class CoherenceTopicListenerTest method shouldReceiveMessagesForMultipleSubscribersInSameGroup.

@Test
void shouldReceiveMessagesForMultipleSubscribersInSameGroup() {
    AtomicInteger count = new AtomicInteger();
    try (Publisher<String> publisher = getPublisher("Nineteen", Publisher.OrderByValue.value((v) -> count.getAndIncrement()))) {
        for (int i = 0; i < publisher.getChannelCount() * 2; i++) {
            publisher.publish("message-" + i);
        }
        int expected = count.get();
        Eventually.assertDeferred(() -> this.listenerFive.received(), is(expected));
        TreeSet<String> set = new TreeSet<>(this.listenerFive.listOne);
        set.addAll(this.listenerFive.listTwo);
        assertThat(set.size(), is(expected));
    }
}

Example 2 with Publisher

use of com.tangosol.net.topic.Publisher in project coherence-spring by coherence-community.

the class CoherenceTopicListenerSubscribers method createSubscribers.

@SuppressWarnings({ "rawtypes", "unchecked" })
public void createSubscribers(Coherence coherence) {
    final Map<String, List<Method>> candidates = this.candidates.getCoherenceTopicListenerCandidateMethods();
    for (Map.Entry<String, List<Method>> entry : candidates.entrySet()) {
        final String beanName = entry.getKey();
        final List<Method> methods = entry.getValue();
        for (Method method : methods) {
            final Class<?> argumentClassType = method.getParameters()[0].getType();
            if (logger.isDebugEnabled()) {
                logger.debug(String.format("Handling Coherence %s - Bean: %s, method: %s", argumentClassType.getName(), beanName, method.getName()));
            }
            String topicName = Utils.getFirstTopicName(method).orElse(method.getName());
            SessionName sessionNameAnn = AnnotatedElementUtils.findMergedAnnotation(method, SessionName.class);
            String sessionName = (sessionNameAnn != null) ? sessionNameAnn.value() : Coherence.DEFAULT_NAME;
            if (!coherence.hasSession(sessionName)) {
                if (logger.isInfoEnabled()) {
                    logger.info(String.format("Skipping @CoherenceTopicListener annotated method subscription %s Session %s does not exist on Coherence instance %s", method, sessionName, coherence.getName()));
                }
                continue;
            }
            Session session = coherence.getSession(sessionName);
            Publisher[] sendToPublishers;
            String[] sendToTopics = getSendToTopicNames(method);
            if (sendToTopics.length > 0) {
                if (method.getReturnType().equals(Void.class)) {
                    if (logger.isInfoEnabled()) {
                        logger.info(String.format("Skipping @SendTo annotations for @CoherenceTopicListener annotated method %s - method return type is void", method));
                    }
                    sendToPublishers = new Publisher[0];
                } else {
                    sendToPublishers = new Publisher[sendToTopics.length];
                    for (int i = 0; i < sendToTopics.length; i++) {
                        NamedTopic<?> topic = session.getTopic(sendToTopics[i]);
                        sendToPublishers[i] = topic.createPublisher();
                    }
                }
            } else {
                sendToPublishers = new Publisher[0];
            }
            List<Subscriber.Option> options = new ArrayList<>();
            MergedAnnotation<SubscriberGroup> subscriberGroupAnn = MergedAnnotations.from(method).get(SubscriberGroup.class);
            subscriberGroupAnn.getValue("value", String.class).ifPresent((name) -> options.add(Subscriber.Name.of(name)));
            Set<Annotation> filterAnnotations = MergedAnnotations.from(method).stream().filter((mergedAnnotation) -> mergedAnnotation.getType().isAnnotationPresent(FilterBinding.class)).map(MergedAnnotation::synthesize).collect(Collectors.toSet());
            if (!filterAnnotations.isEmpty()) {
                Filter filter = this.filterService.resolve(filterAnnotations);
                if (filter != null) {
                    options.add(Subscriber.Filtered.by(filter));
                }
            }
            Set<Annotation> extractorAnnotations = MergedAnnotations.from(method).stream().filter((mergedAnnotation) -> mergedAnnotation.getType().isAnnotationPresent(ExtractorBinding.class)).map(MergedAnnotation::synthesize).collect(Collectors.toSet());
            if (!extractorAnnotations.isEmpty()) {
                ValueExtractor extractor = this.extractorService.resolve(extractorAnnotations);
                if (extractor != null) {
                    options.add(Subscriber.Convert.using(extractor));
                }
            }
            NamedTopic<?> topic = session.getTopic(topicName);
            Subscriber<?> subscriber = topic.createSubscriber(options.toArray(new Subscriber.Option[0]));
            Object bean = this.applicationContext.getBean(beanName);
            TopicSubscriber<?, ?, ?> topicSubscriber = new TopicSubscriber<>(topicName, subscriber, sendToPublishers, bean, method, this.scheduler);
            this.subscribers.add(topicSubscriber);
            topicSubscriber.nextMessage();
        }
    }
    this.subscribed = true;
}

Example 3 with Publisher

use of com.tangosol.net.topic.Publisher in project micronaut-coherence by micronaut-projects.

the class CoherenceTopicListenerTest method shouldReceiveElementBinderArguments.

@Test
public void shouldReceiveElementBinderArguments() throws Exception {
    int channel = 1;
    try (Publisher<String> publisher = getPublisher("Eighteen", Publisher.OrderBy.id(channel))) {
        String message = "ABC";
        Publisher.Status status = publisher.publish(message).get(1, TimeUnit.MINUTES);
        listenerFour.latch.await(1, TimeUnit.MINUTES);
        assertThat(listenerFour.lastElementOne, is(notNullValue()));
        assertThat(listenerFour.lastElementOne.getChannel(), is(status.getChannel()));
        assertThat(listenerFour.lastElementOne.getPosition(), is(status.getPosition()));
        assertThat(listenerFour.lastElementOne.getValue(), is(message));
        assertThat(listenerFour.lastElementTwo, is(notNullValue()));
        assertThat(listenerFour.lastElementTwo.getChannel(), is(status.getChannel()));
        assertThat(listenerFour.lastElementTwo.getPosition(), is(status.getPosition()));
        assertThat(listenerFour.lastElementTwo.getValue(), is(message));
        assertThat(listenerFour.lastSubscriberTwo, is(notNullValue()));
        assertThat(listenerFour.lastValueThree, is(message));
        assertThat(listenerFour.lastChannelFour, is(status.getChannel()));
        assertThat(listenerFour.lastValueFour, is(message));
        assertThat(listenerFour.lastPositionFive, is(status.getPosition()));
        assertThat(listenerFour.lastValueFive, is(message));
        assertThat(listenerFour.lastBinary, is(notNullValue()));
        Serializer serializer = publisher.getNamedTopic().getService().getSerializer();
        assertThat(ExternalizableHelper.fromBinary(listenerFour.lastBinary, serializer), is(message));
    }
}

Example 4 with Publisher

use of com.tangosol.net.topic.Publisher in project micronaut-coherence by micronaut-projects.

the class CoherenceTopicListenerTest method shouldReceiveMessagesForMultipleSubscribersInSameGroup.

@Test
public void shouldReceiveMessagesForMultipleSubscribersInSameGroup() {
    AtomicInteger count = new AtomicInteger();
    try (Publisher<String> publisher = getPublisher("Nineteen", Publisher.OrderByValue.value(v -> count.getAndIncrement()))) {
        for (int i = 0; i < publisher.getChannelCount() * 2; i++) {
            publisher.publish("message-" + i);
        }
        int expected = count.get();
        Eventually.assertDeferred(() -> listenerFive.received(), is(expected));
        TreeSet<String> set = new TreeSet<>(listenerFive.listOne);
        set.addAll(listenerFive.listTwo);
        assertThat(set.size(), is(expected));
    }
}

Example 5 with Publisher

use of com.tangosol.net.topic.Publisher in project micronaut-coherence by micronaut-projects.

the class CoherenceTopicListenerProcessor method createSubscribers.

@SuppressWarnings({ "unchecked", "rawtypes" })
void createSubscribers(Coherence coherence) {
    for (MethodHolder holder : methods) {
        List<Subscriber.Option> options = new ArrayList<>();
        ExecutableMethod<?, ?> method = holder.getMethod();
        String topicName = Utils.getFirstTopicName(method).orElse(method.getMethodName());
        String sessionName = method.stringValue(SessionName.class).orElse(Coherence.DEFAULT_NAME);
        if (!coherence.hasSession(sessionName)) {
            LOG.info("Skipping @CoherenceTopicListener annotated method subscription {} Session {} does not exist on Coherence instance {}", method, sessionName, coherence.getName());
            return;
        }
        Session session = coherence.getSession(sessionName);
        Publisher[] sendToPublishers;
        String[] sendToTopics = Utils.getSendToTopicNames(method);
        if (sendToTopics.length > 0) {
            if (method.getReturnType().isVoid()) {
                LOG.info("Skipping @SendTo annotations for @CoherenceTopicListener annotated method {} - method return type is void", method);
                sendToPublishers = new Publisher[0];
            } else {
                sendToPublishers = new Publisher[sendToTopics.length];
                for (int i = 0; i < sendToTopics.length; i++) {
                    NamedTopic<?> topic = session.getTopic(sendToTopics[i]);
                    sendToPublishers[i] = topic.createPublisher();
                }
            }
        } else {
            sendToPublishers = new Publisher[0];
        }
        method.stringValue(SubscriberGroup.class).ifPresent(name -> options.add(Subscriber.Name.of(name)));
        List<String> filterBindings = method.getAnnotationNamesByStereotype(FilterBinding.class);
        if (!filterBindings.isEmpty()) {
            Set<Annotation> annotations = filterBindings.stream().map(s -> method.getAnnotationType(s).orElse(null)).filter(Objects::nonNull).map(method::synthesize).collect(Collectors.toSet());
            Filter filter = filterFactories.resolve(annotations);
            if (filter != null) {
                options.add(Subscriber.Filtered.by(filter));
            }
        }
        List<String> extractorBindings = method.getAnnotationNamesByStereotype(ExtractorBinding.class);
        if (!extractorBindings.isEmpty()) {
            Set<Annotation> annotations = extractorBindings.stream().map(s -> method.getAnnotationType(s).orElse(null)).filter(Objects::nonNull).map(method::synthesize).collect(Collectors.toSet());
            ValueExtractor extractor = extractorFactories.resolve(annotations);
            if (extractor != null) {
                options.add(Subscriber.Convert.using(extractor));
            }
        }
        BeanDefinition<?> beanDefinition = holder.getBeanDefinition();
        Class<?> clsBeanType = beanDefinition.getBeanType();
        Object bean = context.getBean(clsBeanType);
        NamedTopic<?> topic = session.getTopic(topicName);
        Subscriber<?> subscriber = topic.createSubscriber(options.toArray(options.toArray(new Subscriber.Option[0])));
        TopicSubscriber<?, ?, ?> topicSubscriber = new TopicSubscriber(topicName, subscriber, sendToPublishers, bean, method, registry, scheduler);
        subscribers.add(topicSubscriber);
        topicSubscriber.nextMessage();
    }
    subscribed = true;
}