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

Example 6 with EventListener

use of org.glassfish.jersey.media.sse.EventListener 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 7 with EventListener

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

the class ServerSentEventsTest method testCreateDomain.

/**
     * Test receiving all streamed messages in parallel by multiple event sources.
     *
     * @throws Exception in case of a failure during the test execution.
     */
@Test
public void testCreateDomain() throws Exception {
    final int MAX_CLIENTS = 25;
    final int MESSAGE_COUNT = 6;
    final Response response = target().path("domain/start").queryParam("testSources", MAX_CLIENTS).request().post(Entity.text("data"), Response.class);
    assertThat("Unexpected start domain response status code.", response.getStatus(), equalTo(Response.Status.CREATED.getStatusCode()));
    final Map<Integer, Integer> messageCounts = new ConcurrentHashMap<Integer, Integer>(MAX_CLIENTS);
    final CountDownLatch doneLatch = new CountDownLatch(MAX_CLIENTS);
    final EventSource[] sources = new EventSource[MAX_CLIENTS];
    final String processUriString = target().getUri().relativize(response.getLocation()).toString();
    final WebTarget sseTarget = target().path(processUriString).queryParam("testSource", "true");
    for (int i = 0; i < MAX_CLIENTS; i++) {
        final int id = i;
        sources[id] = EventSource.target(sseTarget).build();
        sources[id].register(new EventListener() {

            private final AtomicInteger messageCount = new AtomicInteger(0);

            @Override
            public void onEvent(InboundEvent inboundEvent) {
                messageCount.incrementAndGet();
                final String message = inboundEvent.readData(String.class);
                if ("done".equals(message)) {
                    messageCounts.put(id, messageCount.get());
                    doneLatch.countDown();
                }
            }
        });
        sources[i].open();
    }
    doneLatch.await(5 * getAsyncTimeoutMultiplier(), TimeUnit.SECONDS);
    for (EventSource source : sources) {
        source.close();
    }
    for (int i = 0; i < MAX_CLIENTS; i++) {
        final Integer count = messageCounts.get(i);
        assertThat("Final message not received by event source " + i, count, notNullValue());
        assertThat("Unexpected number of messages received by event source " + i, count, equalTo(MESSAGE_COUNT));
    }
}

Example 8 with EventListener

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

the class ItemStoreResourceTest method testEventSourceReconnect.

/**
     * Test the {@link EventSource} reconnect feature.
     *
     * @throws Exception in case of a test failure.
     */
@Test
public void testEventSourceReconnect() throws Exception {
    final WebTarget itemsTarget = target("items");
    // countdown only on new item events
    final CountDownLatch latch = new CountDownLatch(MAX_ITEMS * MAX_LISTENERS * 2);
    final List<Queue<String>> receivedQueues = new ArrayList<Queue<String>>(MAX_LISTENERS);
    final EventSource[] sources = new EventSource[MAX_LISTENERS];
    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<String> received = new ConcurrentLinkedQueue<String>();
        receivedQueues.add(received);
        es.register(new EventListener() {

            @Override
            public void onEvent(InboundEvent inboundEvent) {
                try {
                    if (inboundEvent.getName() == null) {
                        latch.countDown();
                        final String data = inboundEvent.readData();
                        LOGGER.info("[-i-] SOURCE " + id + ": Received event id=" + inboundEvent.getId() + " data=" + data);
                        received.add(data);
                    }
                } catch (Exception ex) {
                    LOGGER.log(Level.SEVERE, "[-x-] SOURCE " + id + ": Error getting event data.", ex);
                    received.add("[data processing error]");
                }
            }
        });
    }
    final String[] postedItems = new String[MAX_ITEMS * 2];
    try {
        open(sources);
        for (int i = 0; i < MAX_ITEMS; i++) {
            final String item = String.format("round-1-%02d", i);
            postItem(itemsTarget, item);
            postedItems[i] = item;
            sendCommand(itemsTarget, "disconnect");
            Thread.sleep(100);
        }
        final int reconnectDelay = 1;
        sendCommand(itemsTarget, "reconnect " + reconnectDelay);
        sendCommand(itemsTarget, "disconnect");
        Thread.sleep(reconnectDelay * 1000);
        for (int i = 0; i < MAX_ITEMS; i++) {
            final String item = String.format("round-2-%02d", i);
            postedItems[i + MAX_ITEMS] = item;
            postItem(itemsTarget, item);
        }
        sendCommand(itemsTarget, "reconnect now");
        assertTrue("Waiting to receive all events has timed out.", latch.await((1 + MAX_LISTENERS * (MAX_ITEMS + 1) * reconnectDelay) * getAsyncTimeoutMultiplier(), TimeUnit.SECONDS));
        // need to force disconnect on server in order for EventSource.close(...) to succeed with HttpUrlConnection
        sendCommand(itemsTarget, "disconnect");
    } finally {
        close(sources);
    }
    final String storedItems = itemsTarget.request().get(String.class);
    for (String item : postedItems) {
        assertThat("Posted item '" + item + "' stored on server", storedItems, containsString(item));
    }
    int sourceId = 0;
    for (Queue<String> queue : receivedQueues) {
        assertThat("Received events in source " + sourceId, queue, describedAs("Collection containing %0", hasItems(postedItems), Arrays.asList(postedItems).toString()));
        assertThat("Size of received queue for source " + sourceId, queue.size(), equalTo(postedItems.length));
        sourceId++;
    }
}

Example 9 with EventListener

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

the class ItemStoreResourceITCase method testEventSourceReconnect.

/**
     * Test the {@link EventSource} reconnect feature.
     *
     * @throws Exception in case of a test failure.
     */
@Test
public void testEventSourceReconnect() throws Exception {
    final WebTarget itemsTarget = target("items");
    // countdown only on new item events
    final CountDownLatch latch = new CountDownLatch(MAX_ITEMS * MAX_LISTENERS * 2);
    final List<Queue<String>> receivedQueues = new ArrayList<Queue<String>>(MAX_LISTENERS);
    final EventSource[] sources = new EventSource[MAX_LISTENERS];
    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<String> received = new ConcurrentLinkedQueue<String>();
        receivedQueues.add(received);
        es.register(new EventListener() {

            @Override
            public void onEvent(InboundEvent inboundEvent) {
                try {
                    if (inboundEvent.getName() == null) {
                        latch.countDown();
                        final String data = inboundEvent.readData();
                        LOGGER.info("[-i-] SOURCE " + id + ": Received event id=" + inboundEvent.getId() + " data=" + data);
                        received.add(data);
                    }
                } catch (ProcessingException ex) {
                    LOGGER.log(Level.SEVERE, "[-x-] SOURCE " + id + ": Error getting event data.", ex);
                    received.add("[data processing error]");
                }
            }
        });
    }
    final String[] postedItems = new String[MAX_ITEMS * 2];
    try {
        open(sources);
        for (int i = 0; i < MAX_ITEMS; i++) {
            final String item = String.format("round-1-%02d", i);
            postItem(itemsTarget, item);
            postedItems[i] = item;
            sendCommand(itemsTarget, "disconnect");
            Thread.sleep(100);
        }
        final int reconnectDelay = 1;
        sendCommand(itemsTarget, "reconnect " + reconnectDelay);
        sendCommand(itemsTarget, "disconnect");
        Thread.sleep(reconnectDelay * 1000);
        for (int i = 0; i < MAX_ITEMS; i++) {
            final String item = String.format("round-2-%02d", i);
            postedItems[i + MAX_ITEMS] = item;
            postItem(itemsTarget, item);
        }
        sendCommand(itemsTarget, "reconnect now");
        assertTrue("Waiting to receive all events has timed out.", latch.await((1 + MAX_LISTENERS * (MAX_ITEMS + 1) * reconnectDelay) * getAsyncTimeoutMultiplier(), TimeUnit.SECONDS));
        // need to force disconnect on server in order for EventSource.close(...) to succeed with HttpUrlConnection
        sendCommand(itemsTarget, "disconnect");
    } finally {
        close(sources);
    }
    final String storedItems = itemsTarget.request().get(String.class);
    for (String item : postedItems) {
        assertThat("Posted item '" + item + "' stored on server", storedItems, containsString(item));
    }
    int sourceId = 0;
    for (Queue<String> queue : receivedQueues) {
        assertThat("Received events in source " + sourceId, queue, describedAs("Collection containing %0", hasItems(postedItems), Arrays.asList(postedItems).toString()));
        assertThat("Size of received queue for source " + sourceId, queue.size(), equalTo(postedItems.length));
        sourceId++;
    }
}