Package org.apache.s4.comm

Examples of org.apache.s4.comm.QueueingListener

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                if (message == null) {
                    logger.error("ReceiveThread {}: received a null message", partitionId);
                    break;
                }

                EventMessage deserialized = (EventMessage) serDeser.deserialize(message);
                // process and store the message
                String msgString = new String(deserialized.getSerializedEvent());
                String[] msgTokens = msgString.split(" ");
                Integer senderPartition = Integer.parseInt(msgTokens[0]);
                Integer receivedMsg = Integer.parseInt(msgTokens[1]);

                if (!receivedMessages.containsKey(senderPartition)) {
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        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));
        } catch (InterruptedException e) {
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        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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    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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        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));

        Assert.assertEquals(expectedFinalResult, new String(zk.getData("/data", false, null)));
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    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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        Event event = new Event();
        event.put("command", String.class, "setValue1");
        event.put("value", String.class, "message1");

        app.testStream.receiveEvent(new EventMessage("", "stream1", app.getSerDeser().serialize(event)));

        signalValue1Set.await();

        StatefulTestPE pe = (StatefulTestPE) app.getPE("statefulPE1").getInstanceForKey("X");

        Assert.assertEquals("message1", pe.getValue1());
        Assert.assertEquals("", pe.getValue2());

        // 3. generate a checkpoint event
        event = new Event();
        event.put("command", String.class, "checkpoint");
        app.testStream.receiveEvent(new EventMessage("", "stream1", app.getSerDeser().serialize(event)));
        Assert.assertTrue(signalCheckpointed.await(10, TimeUnit.SECONDS));

        // NOTE: the backend has asynchronous save operations
        Thread.sleep(1000);
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    @Inject
    RemoteEmitterFactory emitterFactory;

    public RemoteEmitter getEmitter(Cluster topology) {
        RemoteEmitter emitter = emitters.get(topology);
        if (emitter == null) {
            emitter = emitterFactory.createRemoteEmitter(topology);
            emitters.put(topology, emitter);
        }
        return emitter;
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        // TODO handle application upgrade
        logger.info("Loading application [{}] from file [{}]", appName, s4r.getAbsolutePath());

        S4RLoaderFactory loaderFactory = injector.getInstance(S4RLoaderFactory.class);
        S4RLoader cl = loaderFactory.createS4RLoader(s4r.getAbsolutePath());
        try {
            JarFile s4rFile = new JarFile(s4r);
            if (s4rFile.getManifest() == null) {
                logger.warn("Cannot load s4r archive [{}] : missing manifest file");
                return null;
            }
            if (!s4rFile.getManifest().getMainAttributes().containsKey(new Name(MANIFEST_S4_APP_CLASS))) {
                logger.warn("Cannot load s4r archive [{}] : missing attribute [{}] in manifest", s4r.getAbsolutePath(),
                        MANIFEST_S4_APP_CLASS);
                return null;
            }
            String appClassName = s4rFile.getManifest().getMainAttributes().getValue(MANIFEST_S4_APP_CLASS);
            logger.info("App class name is: " + appClassName);
            App app = null;

            try {
                Object o = (cl.loadClass(appClassName)).newInstance();
                app = (App) o;
                injector.injectMembers(app);
            } catch (Exception e) {
                logger.error("Could not load s4 application form s4r file [{" + s4r.getAbsolutePath() + "}]", e);
                return null;
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        logger.info("Completed applications startup.");
    }

    private void loadApp(Sender sender, Receiver receiver, File s4r) {

        S4RLoader cl = new S4RLoader(s4r.getAbsolutePath());
        try {
            JarFile s4rFile = new JarFile(s4r);
            if (s4rFile.getManifest() == null) {
                logger.warn("Cannot load s4r archive [{}] : missing manifest file");
                return;
            }
            if (!s4rFile.getManifest().getMainAttributes().containsKey(new Name(MANIFEST_S4_APP_CLASS))) {
                logger.warn("Cannot load s4r archive [{}] : missing attribute [{}] in manifest", s4r.getAbsolutePath(),
                        MANIFEST_S4_APP_CLASS);
                return;
            }
            String appClassName = s4rFile.getManifest().getMainAttributes().getValue(MANIFEST_S4_APP_CLASS);
            logger.info("App class name is: " + appClassName);
            App app = null;

            try {
                Object o = (cl.loadClass(appClassName)).newInstance();
                app = (App) o;
            } catch (Exception e) {
                logger.error("Could not load s4 application form s4r file [{" + s4r.getAbsolutePath() + "}]", e);
                return;
            }
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  • com.google.inject.Injector
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  • org.apache.s4.base.EventMessage
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