Examples with Server io.mantisrx.runtime.source.http.LocalServerProvider.Server used on opensource projects

Example 1 with Server

use of io.mantisrx.runtime.source.http.LocalServerProvider.Server in project mantis by Netflix.

the class HttpSourceImplTest method testTimeoutShouldUnsubscribeServer.

@Test
public void testTimeoutShouldUnsubscribeServer() throws Exception {
    HttpClientFactory<ByteBuf, ByteBuf> factory = new HttpClientFactory<ByteBuf, ByteBuf>() {

        @Override
        public HttpClient<ByteBuf, ByteBuf> createClient(ServerInfo server) {
            ClientConfig clientConfig = new ClientConfig.Builder().readTimeout(10, TimeUnit.MILLISECONDS).build();
            return new HttpClientBuilder<ByteBuf, ByteBuf>(server.getHost(), server.getPort()).config(clientConfig).build();
        }
    };
    HttpSourceImpl<ByteBuf, ByteBuf, ServerContext<ByteBuf>> source = HttpSourceImpl.builder(factory, HttpRequestFactories.createGetFactory("test/timeout?timeout=10000"), HttpSourceImpl.<ByteBuf>contextWrapper()).withActivityObserver(sourceObserver).resumeWith(new ClientResumePolicy<ByteBuf, ByteBuf>() {

        @Override
        public Observable<HttpClientResponse<ByteBuf>> onError(ServerClientContext<ByteBuf, ByteBuf> clientContext, int attempts, Throwable error) {
            // TODO Auto-generated method stub
            return null;
        }

        @Override
        public Observable<HttpClientResponse<ByteBuf>> onCompleted(ServerClientContext<ByteBuf, ByteBuf> clientContext, int attempts) {
            // TODO Auto-generated method stub
            return null;
        }
    }).withServerProvider(new HttpServerProvider() {

        @Override
        public Observable<ServerInfo> getServersToAdd() {
            return Observable.from(localServerProvider.getServers()).map(new Func1<Server, ServerInfo>() {

                @Override
                public ServerInfo call(Server server) {
                    return toServerInfo(server);
                }
            });
        }

        @Override
        public Observable<ServerInfo> getServersToRemove() {
            return Observable.empty();
        }
    }).build();
    final CountDownLatch latch = new CountDownLatch(1);
    final AtomicReference<Throwable> ex = new AtomicReference<>();
    final AtomicReference<ServerContext<ByteBuf>> items = new AtomicReference<>();
    Observable.merge(source.call(new Context(), new Index(1, 1))).subscribe(new Subscriber<ServerContext<ByteBuf>>() {

        @Override
        public void onCompleted() {
            latch.countDown();
        }

        @Override
        public void onError(Throwable e) {
            ex.set(e);
            latch.countDown();
        }

        @Override
        public void onNext(ServerContext<ByteBuf> pair) {
            items.set(pair);
        }
    });
    if (!latch.await(5, TimeUnit.SECONDS)) {
        fail("The test case should finish way sooner than 5 seconds. ");
    }
    Assert.assertNull("The timeout error should be captured by the client so it does not surface to the source", ex.get());
    Assert.assertNull("There should be no emitted item due to connection timeout", items.get());
    for (Server server : localServerProvider.getServers()) {
        ServerInfo serverInfo = toServerInfo(server);
        assertEquals("There should be no source level error", 0, sourceObserver.getErrorCount());
        assertEquals("There should be one connection attempt per server", 1, sourceObserver.getCount(serverInfo, EventType.CONNECTION_ATTEMPTED));
        assertEquals("There should be no established connection per server due to read timeout. ", 0, sourceObserver.getCount(serverInfo, EventType.CONNECTION_ESTABLISHED));
        assertEquals("There should no subscribed server because of read timeout", 0, sourceObserver.getCount(serverInfo, EventType.SUBSCRIPTION_ESTABLISHED));
    }
}

Example 2 with Server

use of io.mantisrx.runtime.source.http.LocalServerProvider.Server in project mantis by Netflix.

the class HttpSourceImplTest method testResumeOnCompletionButNotOnRemovedServers.

@Test
public void testResumeOnCompletionButNotOnRemovedServers() throws Exception {
    final int maxRepeat = 10;
    final int cutOff = 5;
    final CountDownLatch countGate = new CountDownLatch(localServerProvider.serverSize() * (cutOff - 1));
    final ConcurrentHashMap<ServerInfo, AtomicInteger> resumptionCounts = new ConcurrentHashMap<>();
    final ConcurrentHashMap<ServerInfo, AtomicInteger> counterPerServer = new ConcurrentHashMap<>();
    for (Server server : localServerProvider.getServers()) {
        ServerInfo serverInfo = toServerInfo(server);
        resumptionCounts.put(serverInfo, new AtomicInteger(0));
        counterPerServer.put(serverInfo, new AtomicInteger(0));
    }
    HttpSourceImpl<ByteBuf, ByteBuf, ServerContext<ByteBuf>> source = createSingleEntitySource(new ClientResumePolicy<ByteBuf, ByteBuf>() {

        @Override
        public Observable<HttpClientResponse<ByteBuf>> onError(ServerClientContext<ByteBuf, ByteBuf> clientContext, int attempts, Throwable error) {
            return null;
        }

        @Override
        public Observable<HttpClientResponse<ByteBuf>> onCompleted(ServerClientContext<ByteBuf, ByteBuf> clientContext, int attempts) {
            resumptionCounts.get(clientContext.getServer()).incrementAndGet();
            countGate.countDown();
            if (attempts < maxRepeat) {
                return clientContext.newResponse();
            } else {
                return null;
            }
        }
    });
    final AtomicInteger counter = new AtomicInteger();
    final CountDownLatch done = new CountDownLatch(1);
    Observable.merge(source.call(new Context(), new Index(1, 1))).map(new Func1<ServerContext<ByteBuf>, ServerContext<String>>() {

        @Override
        public ServerContext<String> call(ServerContext<ByteBuf> pair) {
            return new ServerContext<>(pair.getServer(), pair.getValue().toString(Charset.defaultCharset()));
        }
    }).doOnNext(new Action1<ServerContext<String>>() {

        @Override
        public void call(ServerContext<String> context) {
            counter.incrementAndGet();
            assertEquals(RequestProcessor.SINGLE_ENTITY_RESPONSE, context.getValue());
            ServerInfo server = context.getServer();
            counterPerServer.get(server).incrementAndGet();
            if (counterPerServer.get(server).get() > cutOff) {
                localServerProvider.removeServer(server);
            }
        }
    }).doOnError(new Action1<Throwable>() {

        @Override
        public void call(Throwable throwable) {
            fail("Unexpected failure: " + throwable);
        }
    }).doAfterTerminate(new Action0() {

        @Override
        public void call() {
            try {
                countGate.await();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            done.countDown();
        }
    }).subscribe();
    long wait = 5;
    if (!done.await(wait, TimeUnit.SECONDS)) {
        fail(String.format("All streaming should be done within %d seconds. ", wait));
    }
    assertEquals("All server should be resumed", localServerProvider.serverSize(), resumptionCounts.size());
    for (ServerInfo server : resumptionCounts.keySet()) {
        assertTrue(String.format("The server %s:%s should be resumed fewer than %d times", server.getHost(), server.getPort(), maxRepeat), maxRepeat > resumptionCounts.get(server).get());
    }
    assertTrue(String.format("There should be at least %d response from each of the %d servers", cutOff + 1, localServerProvider.serverSize()), (cutOff + 1) * localServerProvider.serverSize() <= counter.get());
    for (Server server : localServerProvider.getServers()) {
        ServerInfo serverInfo = toServerInfo(server);
        assertEquals("There should be no error", 0, sourceObserver.getCount(serverInfo, EventType.SUBSCRIPTION_FAILED));
    }
    assertEquals(String.format("There are %d repeats, but there should be only one final completion", maxRepeat - 1), 1, sourceObserver.getCompletionCount());
    assertEquals("There should be no error", 0, sourceObserver.getErrorCount());
    Set<EventType> events = sourceObserver.getEvents();
    Set<EventType> expectedEvents = new HashSet<>();
    expectedEvents.addAll(Arrays.asList(EventType.SUBSCRIPTION_CANCELED, EventType.SERVER_FOUND, EventType.CONNECTION_ATTEMPTED, EventType.CONNECTION_ESTABLISHED, EventType.SUBSCRIPTION_ESTABLISHED, EventType.SOURCE_COMPLETED, EventType.SUBSCRIPTION_ENDED, EventType.CONNECTION_UNSUBSCRIBED));
    assertEquals(expectedEvents, events);
    assertEquals("Each connection should be unsubscribed once by the subscriber", localServerProvider.serverSize(), sourceObserver.getEventCount(CONNECTION_UNSUBSCRIBED));
    for (EventType eventType : new EventType[] { EventType.SOURCE_COMPLETED, EventType.SUBSCRIPTION_ESTABLISHED, EventType.CONNECTION_ATTEMPTED, EventType.CONNECTION_ESTABLISHED }) {
        assertTrue(String.format("Event %s should be recorded at least %d times per server", eventType, cutOff), (cutOff + 1) * localServerProvider.serverSize() <= sourceObserver.getEventCount(eventType));
    }
    for (EventType eventType : new EventType[] { EventType.SERVER_FOUND, EventType.SUBSCRIPTION_CANCELED }) {
        assertEquals(String.format("Event %s should be recorded exactly once per server", eventType), localServerProvider.serverSize(), sourceObserver.getEventCount(eventType));
    }
}

Example 3 with Server

use of io.mantisrx.runtime.source.http.LocalServerProvider.Server in project mantis by Netflix.

the class HttpSourceImplTest method testResumeOnCompletion.

@Test
public void testResumeOnCompletion() throws Exception {
    final int maxRepeat = 10;
    final CountDownLatch countGate = new CountDownLatch(maxRepeat * localServerProvider.serverSize());
    HttpSourceImpl<ByteBuf, ByteBuf, ServerContext<ByteBuf>> source = createSingleEntitySource(new ClientResumePolicy<ByteBuf, ByteBuf>() {

        @Override
        public Observable<HttpClientResponse<ByteBuf>> onError(ServerClientContext<ByteBuf, ByteBuf> clientContext, int attempts, Throwable error) {
            return null;
        }

        @Override
        public Observable<HttpClientResponse<ByteBuf>> onCompleted(ServerClientContext<ByteBuf, ByteBuf> clientContext, int attempts) {
            countGate.countDown();
            if (attempts < maxRepeat) {
                return clientContext.newResponse();
            } else {
                return null;
            }
        }
    });
    final AtomicInteger counter = new AtomicInteger();
    final CountDownLatch done = new CountDownLatch(1);
    Observable.merge(source.call(new Context(), new Index(1, 1))).map(new Func1<ServerContext<ByteBuf>, ServerContext<String>>() {

        @Override
        public ServerContext<String> call(ServerContext<ByteBuf> pair) {
            try {
                return new ServerContext<>(pair.getServer(), pair.getValue().retain().toString(Charset.defaultCharset()));
            } catch (Throwable e) {
                e.printStackTrace();
                throw new RuntimeException(e);
            }
        }
    }).doOnNext(new Action1<ServerContext<String>>() {

        @Override
        public void call(ServerContext<String> pair) {
            counter.incrementAndGet();
            assertEquals(RequestProcessor.SINGLE_ENTITY_RESPONSE, pair.getValue());
        }
    }).doOnError(new Action1<Throwable>() {

        @Override
        public void call(Throwable throwable) {
            fail("Unexpected failure: " + throwable);
        }
    }).doAfterTerminate(new Action0() {

        @Override
        public void call() {
            try {
                countGate.await();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            done.countDown();
        }
    }).subscribe();
    long wait = 5;
    if (!done.await(5, TimeUnit.SECONDS)) {
        fail(String.format("All streaming should be done within %d seconds. ", wait));
    }
    assertEquals(String.format("There should be exactly %d response from each of the %d servers", maxRepeat, localServerProvider.serverSize()), maxRepeat * localServerProvider.serverSize(), counter.get());
    for (Server server : localServerProvider.getServers()) {
        ServerInfo serverInfo = toServerInfo(server);
        assertEquals(String.format("There should be %d completion per server as resumption function should called %d times", maxRepeat, maxRepeat - 1), maxRepeat, sourceObserver.getCount(serverInfo, EventType.SOURCE_COMPLETED));
        assertEquals("There should be no error", 0, sourceObserver.getCount(serverInfo, EventType.SUBSCRIPTION_FAILED));
        assertEquals(String.format("Connection per server should have been established %d times", maxRepeat), 10, sourceObserver.getCount(serverInfo, EventType.SUBSCRIPTION_ESTABLISHED));
    }
    assertEquals(String.format("There are %d repeats, but there should be only one final completion", maxRepeat - 1), 1, sourceObserver.getCompletionCount());
    assertEquals(0, sourceObserver.getErrorCount());
    Set<EventType> events = sourceObserver.getEvents();
    assertEquals(EXPECTED_EVENTS_SETS, events);
    assertEquals("Each connection should be unsubscribed once by the subscriber", localServerProvider.serverSize(), sourceObserver.getEventCount(CONNECTION_UNSUBSCRIBED));
    for (EventType eventType : new EventType[] { EventType.SOURCE_COMPLETED, EventType.SUBSCRIPTION_ESTABLISHED, EventType.CONNECTION_ATTEMPTED, EventType.CONNECTION_ESTABLISHED }) {
        assertEquals(String.format("Event %s should be recorded exactly %d times per server", eventType, maxRepeat), maxRepeat * localServerProvider.serverSize(), sourceObserver.getEventCount(eventType));
    }
    assertEquals("Event SERVER_FOUND should be recorded exactly once per server", localServerProvider.serverSize(), sourceObserver.getEventCount(EventType.SERVER_FOUND));
}

Example 4 with Server

use of io.mantisrx.runtime.source.http.LocalServerProvider.Server in project mantis by Netflix.

the class HttpSourceImplTest method testGettingStreamFromMultipleServers.

@Test
public void testGettingStreamFromMultipleServers() throws Exception {
    HttpSourceImpl<ByteBuf, ServerSentEvent, ServerContext<ServerSentEvent>> source = createStreamingSource();
    final AtomicInteger counter = new AtomicInteger();
    final CountDownLatch done = new CountDownLatch(1);
    final ConcurrentHashMap<String, AtomicInteger> result = new ConcurrentHashMap<>();
    Observable.merge(source.call(new Context(), new Index(1, 1))).doOnNext(new Action1<ServerContext<ServerSentEvent>>() {

        @Override
        public void call(ServerContext<ServerSentEvent> pair) {
            assertTrue(pair.getValue().contentAsString().contains("line"));
            counter.incrementAndGet();
            String msg = pair.getValue().contentAsString();
            result.putIfAbsent(msg, new AtomicInteger());
            result.get(msg).incrementAndGet();
        }
    }).doOnError(new Action1<Throwable>() {

        @Override
        public void call(Throwable throwable) {
            fail("Unexpected failure: " + throwable);
        }
    }).doAfterTerminate(new Action0() {

        @Override
        public void call() {
            done.countDown();
        }
    }).subscribe();
    long waitSeconds = 3;
    boolean timedout = !done.await(waitSeconds, TimeUnit.SECONDS);
    if (timedout) {
        fail(String.format("Waited at least %d seconds for the test to finish. Something is wrong", waitSeconds));
    }
    assertEquals(String.format("%d servers => the result has %d times of a single stream", localServerProvider.serverSize(), localServerProvider.serverSize()), counter.get(), RequestProcessor.smallStreamContent.size() * localServerProvider.serverSize());
    for (String data : RequestProcessor.smallStreamContent) {
        assertEquals(String.format("%d servers => %d identical copies per message", localServerProvider.serverSize(), localServerProvider.serverSize()), localServerProvider.serverSize(), result.get(data).get());
    }
    for (Server server : localServerProvider.getServers()) {
        assertEquals("There should be one completion per server", 1, sourceObserver.getCount(toServerInfo(server), EventType.SOURCE_COMPLETED));
        assertEquals("There should be one un-subscription per server", 1, sourceObserver.getCount(toServerInfo(server), EventType.CONNECTION_UNSUBSCRIBED));
        assertEquals("There should be no error", 0, sourceObserver.getCount(toServerInfo(server), EventType.SUBSCRIPTION_FAILED));
        assertEquals("There should be one connection per server", 1, sourceObserver.getCount(toServerInfo(server), EventType.CONNECTION_ESTABLISHED));
    }
    assertEquals(1, sourceObserver.getCompletionCount());
    assertEquals(0, sourceObserver.getErrorCount());
    Set<EventType> events = sourceObserver.getEvents();
    assertEquals(EXPECTED_EVENTS_SETS, events);
    for (EventType event : events) {
        assertEquals("Each event should be recorded exactly once per server", localServerProvider.serverSize(), sourceObserver.getEventCount(event));
    }
    assertEquals("completed source should clean up its retry servers", 0, source.getRetryServers().size());
}

Example 5 with Server

use of io.mantisrx.runtime.source.http.LocalServerProvider.Server in project mantis by Netflix.

the class HttpSourceImplTest method testStreamingErrorFromServerWillNotCompleteSource.

@Test
public void testStreamingErrorFromServerWillNotCompleteSource() throws Exception {
    int eventCount = 20;
    HttpSourceImpl<ByteBuf, ServerSentEvent, ServerContext<ServerSentEvent>> source = createStreamingSource("test/finiteStream?count=" + eventCount);
    final CountDownLatch latch = new CountDownLatch(1);
    final AtomicReference<Throwable> ex = new AtomicReference<>();
    final ConcurrentHashMap<ServerInfo, Set<String>> items = new ConcurrentHashMap<>();
    Observable.merge(source.call(new Context(), new Index(1, 1))).subscribe(new Subscriber<ServerContext<ServerSentEvent>>() {

        @Override
        public void onCompleted() {
            latch.countDown();
        }

        @Override
        public void onError(Throwable e) {
            ex.set(e);
            latch.countDown();
        }

        @Override
        public void onNext(ServerContext<ServerSentEvent> pair) {
            items.putIfAbsent(pair.getServer(), new HashSet<String>());
            items.get(pair.getServer()).add(pair.getValue().contentAsString());
        }
    });
    if (latch.await(5, TimeUnit.SECONDS)) {
        fail("The test case should not finish at all");
    }
    Assert.assertNull("The timeout error should be captured by the client so it does not surface to the source", ex.get());
    for (Server server : localServerProvider.getServers()) {
        ServerInfo serverInfo = toServerInfo(server);
        assertEquals("There should be no source level error", 0, sourceObserver.getErrorCount());
        assertEquals("There should be one connection attempt per server", 1, sourceObserver.getCount(serverInfo, EventType.CONNECTION_ATTEMPTED));
        assertEquals("There should be one established connection per server ", 1, sourceObserver.getCount(serverInfo, EventType.CONNECTION_ESTABLISHED));
        assertEquals("There should no subscribed server because of read timeout", 1, sourceObserver.getCount(serverInfo, EventType.SUBSCRIPTION_ESTABLISHED));
        assertEquals(String.format("There should be %d item before simulated error per server", eventCount), eventCount, items.get(serverInfo).size());
    }
}