Package org.apache.s4.base

Examples of org.apache.s4.base.Emitter

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        Injector injector = Guice.createInjector(new BaseModule(Resources.getResource("default.s4.base.properties")
                .openStream(), "cluster1"), new DefaultCommModule(Resources.getResource("default.s4.comm.properties")
                .openStream()));

        Emitter emitter = injector.getInstance(TCPEmitter.class);
        List<Long> messages = Lists.newArrayList();
        for (int i = 0; i < NB_MESSAGES; i++) {
            messages.add(System.currentTimeMillis());
        }

        ZkClient zkClient = new ZkClient("localhost:2181");
        zkClient.create("/test", 0, CreateMode.PERSISTENT);

        final ZooKeeper zk = CommTestUtils.createZkClient();
        final CountDownLatch signalMessagesReceived = new CountDownLatch(1);

        // watch for last message in test data sequence
        CoreTestUtils.watchAndSignalCreation("/test/data" + Strings.padStart(String.valueOf(NB_MESSAGES - 1), 10, '0'),
                signalMessagesReceived, zk);

        SerializerDeserializer serDeser = injector.getInstance(SerializerDeserializerFactory.class)
                .createSerializerDeserializer(Thread.currentThread().getContextClassLoader());
        for (Long message : messages) {
            Event event = new Event();
            event.put("message", long.class, message);
            event.setStreamId("inputStream");
            emitter.send(0, serDeser.serialize(event));
        }

        // check sequential nodes in zk with correct data
        Assert.assertTrue(signalMessagesReceived.await(10, TimeUnit.SECONDS));
        List<String> children = zkClient.getChildren("/test");
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        Injector injector1 = Guice.createInjector(Modules.override(
                new TestCommModule(Resources.getResource("default.s4.comm.properties").openStream())).with(
                new TCPTransportModule(), new NoOpReceiverModule()));

        // this node picks partition 0
        Emitter emitter = injector1.getInstance(Emitter.class);

        Injector injector2 = Guice.createInjector(Modules.override(
                new TestCommModule(Resources.getResource("default.s4.comm.properties").openStream())).with(
                new TCPTransportModule(), new MockReceiverModule()));

        // creating the listener will inject assignment (i.e. assign a partition) and receiver (delegatee for
        // listener, here a mock which simply intercepts the message and notifies through a countdown latch)
        injector2.getInstance(Listener.class);

        // send to the other node
        emitter.send(1, injector1.getInstance(SerializerDeserializer.class).serialize(CommTestUtils.MESSAGE));

        // check receiver got the message
        Assert.assertTrue(CommTestUtils.SIGNAL_MESSAGE_RECEIVED.await(5, TimeUnit.SECONDS));

    }
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        Injector injector1 = Guice.createInjector(Modules.override(
                new TestCommModule(Resources.getResource("default.s4.comm.properties").openStream())).with(
                new UDPTransportModule(), new NoOpReceiverModule()));
        // this picks partition 0
        Emitter emitter = injector1.getInstance(Emitter.class);

        Injector injector2 = Guice.createInjector(Modules.override(
                new TestCommModule(Resources.getResource("default.s4.comm.properties").openStream())).with(
                new UDPTransportModule(), new MockReceiverModule()));

        // creating the listener will inject assignment (i.e. assign a partition) and receiver (delegatee for
        // listener)
        injector2.getInstance(Listener.class);

        // send to the other partition (1)
        emitter.send(1, injector1.getInstance(SerializerDeserializer.class).serialize(CommTestUtils.MESSAGE));

        Assert.assertTrue(CommTestUtils.SIGNAL_MESSAGE_RECEIVED.await(5, TimeUnit.SECONDS));

    }
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        String results = new String(zk.getData("/results", false, null));
        Assert.assertEquals("be=2;da=2;doobie=5;not=1;or=1;to=2;", results);
    }

    public void injectSentence(String sentence) throws IOException {
        Event event = new Event();
        event.put("sentence", String.class, sentence);
        emitter.send(0, new EventMessage("-1", "inputStream", injector.getInstance(SerializerDeserializer.class)
                .serialize(event)));
    }
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        TestApp app = injector.getInstance(TestApp.class);
        app.count = 2; // One for the event, another for the timer
        app.init();
        app.start();

        app.testStream.receiveEvent(new EventMessage(APP_NAME, STREAM_NAME, app.getSerDeser().serialize(new Event())));

        /*
         * This must raise a timeout, since the onTime() event is blocked waiting for the onEvent() call to finish. If
         * it completes before the timeout, it means onEvent() and onTime() weren't synchronized
         */
 
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        TestTimeWindowedApp app = injector.getInstance(TestTimeWindowedApp.class);
        app.init();
        app.start();

        for (int i = 0; i < NB_EVENTS; i++) {
            Event e = new Event();
            e.put("value", Integer.class, i);
            app.stream1.receiveEvent(new EventMessage(APP_NAME, STREAM_NAME, app.getSerDeser().serialize(e)));
        }

        try {
            Assert.assertTrue(signalAllEventsProcessed.await(30, TimeUnit.SECONDS));
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        Injector injector = CoreTestUtils.createInjectorWithNonFailFastZKClients();

        TCPEmitter emitter = injector.getInstance(TCPEmitter.class);

        Event event = new Event();
        event.put("line", String.class, time1);
        emitter.send(0, new EventMessage("-1", "inputStream", injector.getInstance(SerializerDeserializer.class)
                .serialize(event)));

        // check event processed
        Assert.assertTrue(signalEvent1Processed.await(5, TimeUnit.SECONDS));
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        testCheckpointingConfiguration(S4AppWithCountBasedCheckpointing.class,
                CheckpointingModuleWithUnrespondingFetchingStorageBackend.class, false, "value1= ; value2=message2");
    }

    private void insertCheckpointInstruction(Injector injector, TCPEmitter emitter) {
        Event event;
        event = new Event();
        event.put("command", String.class, "checkpoint");
        emitter.send(0, new EventMessage("-1", "inputStream", injector.getInstance(SerializerDeserializer.class)
                .serialize(event)));
    }
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        Injector injector = CoreTestUtils.createInjectorWithNonFailFastZKClients();

        TCPEmitter emitter = injector.getInstance(TCPEmitter.class);

        Event event = new Event();
        event.put("command", String.class, "setValue1");
        event.put("value", String.class, "message1");
        emitter.send(0, new EventMessage("-1", "inputStream", injector.getInstance(SerializerDeserializer.class)
                .serialize(event)));

        if (manualCheckpointing) {
            insertCheckpointInstruction(injector, emitter);
        }

        Assert.assertTrue(signalCheckpointed.await(10, TimeUnit.SECONDS));

        forkedS4App.destroy();

        zk.delete("/data", -1);

        signalConsumerReady = getConsumerReadySignal("inputStream");
        forkedS4App = CoreTestUtils.forkS4Node(new String[] { "-c", "cluster1", "-appClass",
                S4AppWithManualCheckpointing.class.getName(), "-extraModulesClasses", backendModuleClass.getName() });

        Assert.assertTrue(signalConsumerReady.await(20, TimeUnit.SECONDS));
        // // trigger recovery by sending application event to set value 2
        CountDownLatch signalValue2Set = new CountDownLatch(1);
        CoreTestUtils.watchAndSignalCreation("/value2Set", signalValue2Set, zk);

        event = new Event();
        event.put("command", String.class, "setValue2");
        event.put("value", String.class, "message2");
        emitter.send(0, new EventMessage("-1", "inputStream", injector.getInstance(SerializerDeserializer.class)
                .serialize(event)));

        Assert.assertTrue(signalValue2Set.await(10, TimeUnit.SECONDS));
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        Assert.assertEquals("be=2;da=2;doobie=5;not=1;or=1;to=2;", results);

    }

    private void injectSentence(Injector injector, TCPEmitter emitter, String sentence) {
        Event event;
        event = new Event();
        event.put("sentence", String.class, sentence);
        emitter.send(0, new EventMessage("-1", "inputStream", injector.getInstance(SerializerDeserializer.class)
                .serialize(event)));
    }
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