Examples with EventSource org.glassfish.jersey.media.sse.EventSource used on opensource projects

Example 1 with EventSource

use of org.glassfish.jersey.media.sse.EventSource in project jersey by jersey.

the class ItemStoreResourceITCase method testItemsStore.

/**
     * Test the item addition, addition event broadcasting and item retrieval from {@link ItemStoreResource}.
     *
     * @throws Exception in case of a test failure.
     */
@Test
public void testItemsStore() throws Exception {
    final List<String> items = Collections.unmodifiableList(Arrays.asList("foo", "bar", "baz"));
    final WebTarget itemsTarget = target("items");
    // countdown on all events
    final CountDownLatch latch = new CountDownLatch(items.size() * MAX_LISTENERS * 2);
    final List<Queue<Integer>> indexQueues = new ArrayList<Queue<Integer>>(MAX_LISTENERS);
    final EventSource[] sources = new EventSource[MAX_LISTENERS];
    final AtomicInteger sizeEventsCount = new AtomicInteger(0);
    for (int i = 0; i < MAX_LISTENERS; i++) {
        final int id = i;
        final EventSource es = EventSource.target(itemsTarget.path("events")).named("SOURCE " + id).build();
        sources[id] = es;
        final Queue<Integer> indexes = new ConcurrentLinkedQueue<Integer>();
        indexQueues.add(indexes);
        es.register(new EventListener() {

            @Override
            @SuppressWarnings("MagicNumber")
            public void onEvent(InboundEvent inboundEvent) {
                try {
                    if (inboundEvent.getName() == null) {
                        final String data = inboundEvent.readData();
                        LOGGER.info("[-i-] SOURCE " + id + ": Received event id=" + inboundEvent.getId() + " data=" + data);
                        indexes.add(items.indexOf(data));
                    } else if ("size".equals(inboundEvent.getName())) {
                        sizeEventsCount.incrementAndGet();
                    }
                } catch (ProcessingException ex) {
                    LOGGER.log(Level.SEVERE, "[-x-] SOURCE " + id + ": Error getting event data.", ex);
                    indexes.add(-999);
                } finally {
                    latch.countDown();
                }
            }
        });
    }
    try {
        open(sources);
        for (String item : items) {
            postItem(itemsTarget, item);
        }
        assertTrue("Waiting to receive all events has timed out.", latch.await((1000 + MAX_LISTENERS * EventSource.RECONNECT_DEFAULT) * getAsyncTimeoutMultiplier(), TimeUnit.MILLISECONDS));
        // need to force disconnect on server in order for EventSource.close(...) to succeed with HttpUrlConnection
        sendCommand(itemsTarget, "disconnect");
    } finally {
        close(sources);
    }
    String postedItems = itemsTarget.request().get(String.class);
    for (String item : items) {
        assertTrue("Item '" + item + "' not stored on server.", postedItems.contains(item));
    }
    int queueId = 0;
    for (Queue<Integer> indexes : indexQueues) {
        for (int i = 0; i < items.size(); i++) {
            assertTrue("Event for '" + items.get(i) + "' not received in queue " + queueId, indexes.contains(i));
        }
        assertEquals("Not received the expected number of events in queue " + queueId, items.size(), indexes.size());
        queueId++;
    }
    assertEquals("Number of received 'size' events does not match.", items.size() * MAX_LISTENERS, sizeEventsCount.get());
}

Example 2 with EventSource

use of org.glassfish.jersey.media.sse.EventSource in project jersey by jersey.

the class ItemStoreResourceITCase method open.

private static void open(final EventSource[] sources) {
    int i = 0;
    for (EventSource source : sources) {
        source.open();
        LOGGER.info("[-->] SOURCE " + i++ + " opened.");
    }
}

Example 3 with EventSource

use of org.glassfish.jersey.media.sse.EventSource in project jersey by jersey.

the class SseTest method testSse.

@Test
public void testSse() throws Exception {
    final ResourceConfig resourceConfig = new ResourceConfig(SseResource.class, SseFeature.class);
    final HttpServer server = GrizzlyHttpServerFactory.createHttpServer(baseUri, resourceConfig);
    Client c = ClientBuilder.newClient();
    c.register(SseFeature.class);
    final List<String> data = new LinkedList<String>();
    final CountDownLatch latch = new CountDownLatch(2);
    final EventSource eventSource = new EventSource(c.target(baseUri).path("/sse")) {

        @Override
        public void onEvent(InboundEvent event) {
            try {
                data.add(event.readData());
                latch.countDown();
            } catch (ProcessingException e) {
            // ignore
            }
        }
    };
    assertTrue(latch.await(2, TimeUnit.SECONDS));
    eventSource.close();
    assertEquals(2, data.size());
    server.shutdownNow();
}

Example 4 with EventSource

use of org.glassfish.jersey.media.sse.EventSource in project jersey by jersey.

the class ItemStoreResourceTest method testItemsStore.

/**
     * Test the item addition, addition event broadcasting and item retrieval from {@link ItemStoreResource}.
     *
     * @throws Exception in case of a test failure.
     */
@Test
public void testItemsStore() throws Exception {
    final List<String> items = Collections.unmodifiableList(Arrays.asList("foo", "bar", "baz"));
    final WebTarget itemsTarget = target("items");
    // countdown on all events
    final CountDownLatch latch = new CountDownLatch(items.size() * MAX_LISTENERS * 2);
    final List<Queue<Integer>> indexQueues = new ArrayList<Queue<Integer>>(MAX_LISTENERS);
    final EventSource[] sources = new EventSource[MAX_LISTENERS];
    final AtomicInteger sizeEventsCount = new AtomicInteger(0);
    for (int i = 0; i < MAX_LISTENERS; i++) {
        final int id = i;
        final EventSource es = EventSource.target(itemsTarget.path("events")).named("SOURCE " + id).build();
        sources[id] = es;
        final Queue<Integer> indexes = new ConcurrentLinkedQueue<Integer>();
        indexQueues.add(indexes);
        es.register(new EventListener() {

            @SuppressWarnings("MagicNumber")
            @Override
            public void onEvent(InboundEvent inboundEvent) {
                try {
                    if (inboundEvent.getName() == null) {
                        final String data = inboundEvent.readData();
                        LOGGER.info("[-i-] SOURCE " + id + ": Received event id=" + inboundEvent.getId() + " data=" + data);
                        indexes.add(items.indexOf(data));
                    } else if ("size".equals(inboundEvent.getName())) {
                        sizeEventsCount.incrementAndGet();
                    }
                } catch (Exception ex) {
                    LOGGER.log(Level.SEVERE, "[-x-] SOURCE " + id + ": Error getting event data.", ex);
                    indexes.add(-999);
                } finally {
                    latch.countDown();
                }
            }
        });
    }
    try {
        open(sources);
        for (String item : items) {
            postItem(itemsTarget, item);
        }
        assertTrue("Waiting to receive all events has timed out.", latch.await((1000 + MAX_LISTENERS * EventSource.RECONNECT_DEFAULT) * getAsyncTimeoutMultiplier(), TimeUnit.MILLISECONDS));
        // need to force disconnect on server in order for EventSource.close(...) to succeed with HttpUrlConnection
        sendCommand(itemsTarget, "disconnect");
    } finally {
        close(sources);
    }
    String postedItems = itemsTarget.request().get(String.class);
    for (String item : items) {
        assertTrue("Item '" + item + "' not stored on server.", postedItems.contains(item));
    }
    int queueId = 0;
    for (Queue<Integer> indexes : indexQueues) {
        for (int i = 0; i < items.size(); i++) {
            assertTrue("Event for '" + items.get(i) + "' not received in queue " + queueId, indexes.contains(i));
        }
        assertEquals("Not received the expected number of events in queue " + queueId, items.size(), indexes.size());
        queueId++;
    }
    assertEquals("Number of received 'size' events does not match.", items.size() * MAX_LISTENERS, sizeEventsCount.get());
}

Example 5 with EventSource

use of org.glassfish.jersey.media.sse.EventSource in project jersey by jersey.

the class ItemStoreResourceTest method close.

private static void close(final EventSource[] sources) {
    int i = 0;
    for (EventSource source : sources) {
        if (source.isOpen()) {
            assertTrue("Waiting to close a source has timed out.", source.close(1, TimeUnit.SECONDS));
            //                    source.close(100, TimeUnit.MILLISECONDS);
            LOGGER.info("[<--] SOURCE " + i++ + " closed.");
        }
    }
}