Examples of org.apache.hedwig.client.api.Subscriber.subscribe()

Class org.apache.hedwig.client.api.Subscriber

Examples of org.apache.hedwig.client.api.Subscriber.subscribe()

org.apache.hedwig.client.api.Subscriber.subscribe()
Subscribe to the given topic for the inputted subscriberId. @param topic Topic name of the subscription @param subscriberId ID of the subscriber @param mode Whether to prohibit, tolerate, or require an existing subscription. @throws CouldNotConnectException If we are not able to connect to the server host @throws ClientAlreadySubscribedException If client is already subscribed to the topic @throws ServiceDownException If unable to subscribe to topic @throws InvalidSubscriberIdException If the subscriberId is not valid. We may want to set aside certain formats of subscriberId's for different purposes. e.g. local vs. hub subscriber

    public void testSyncHubSubscribeWithInvalidSubscriberId() throws Exception {
        Client hubClient = new HedwigHubClient(new ClientConfiguration());
        Subscriber hubSubscriber = hubClient.getSubscriber();
        boolean subscribeSuccess = false;
        try {
            hubSubscriber.subscribe(getTopic(0), localSubscriberId, CreateOrAttach.CREATE_OR_ATTACH);
        } catch (InvalidSubscriberIdException e) {
            subscribeSuccess = true;
        } catch (Exception ex) {
            subscribeSuccess = false;
        }

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    public void testSyncHubSubscribeWithInvalidSubscriberId() throws Exception {
        Client hubClient = new HedwigHubClient(new ClientConfiguration());
        Subscriber hubSubscriber = hubClient.getSubscriber();
        boolean subscribeSuccess = false;
        try {
            hubSubscriber.subscribe(getTopic(0), localSubscriberId, CreateOrAttach.CREATE_OR_ATTACH);
        } catch (InvalidSubscriberIdException e) {
            subscribeSuccess = true;
        } catch (Exception ex) {
            subscribeSuccess = false;
        }

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        Publisher pub = client.getPublisher();
        Subscriber sub = client.getSubscriber();


        ByteString topic = ByteString.copyFromUtf8("testServerSideThrottle");
        ByteString subid = ByteString.copyFromUtf8("serverThrottleSub");
        sub.subscribe(topic, subid, CreateOrAttach.CREATE);
        sub.closeSubscription(topic, subid);


        // throttle with hub server's setting
        throttleX(pub, sub, topic, subid, DEFAULT_MESSAGE_WINDOW_SIZE);

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        // throttle with a lower value than hub server's setting
        SubscriptionOptions.Builder optionsBuilder = SubscriptionOptions.newBuilder()
            .setCreateOrAttach(CreateOrAttach.CREATE)
            .setMessageWindowSize(messageWindowSize);
        topic = ByteString.copyFromUtf8("testServerSideThrottleWithLowerValue");
        sub.subscribe(topic, subid, optionsBuilder.build());
        sub.closeSubscription(topic, subid);
        throttleX(pub, sub, topic, subid, messageWindowSize);


        messageWindowSize = DEFAULT_MESSAGE_WINDOW_SIZE + 5;
        // throttle with a higher value than hub server's setting

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        // throttle with a higher value than hub server's setting
        optionsBuilder = SubscriptionOptions.newBuilder()
                         .setCreateOrAttach(CreateOrAttach.CREATE)
                         .setMessageWindowSize(messageWindowSize);
        topic = ByteString.copyFromUtf8("testServerSideThrottleWithHigherValue");
        sub.subscribe(topic, subid, optionsBuilder.build());
        sub.closeSubscription(topic, subid);
        throttleX(pub, sub, topic, subid, messageWindowSize);


        client.close();
    }

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        Subscriber sub = client.getSubscriber();


        ByteString topic = ByteString.copyFromUtf8("testThrottleWithServerSideFilter");
        ByteString subid = ByteString.copyFromUtf8("mysub");
        SubscriptionOptions opts = SubscriptionOptions.newBuilder().setCreateOrAttach(CreateOrAttach.CREATE).build();
        sub.subscribe(topic, subid, opts);
        sub.closeSubscription(topic, subid);


        // message gap: half of the throttle threshold
        throttleWithFilter(pub, sub, topic, subid, messageWindowSize / 2);
        // message gap: equals to the throttle threshold

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        final CountDownLatch closeLatch = new CountDownLatch(1);
        final CountDownLatch subLatch = new CountDownLatch(1);
        final CountDownLatch deliverLatch = new CountDownLatch(1);


        try {
            subscriber.subscribe(topic, subid, CreateOrAttach.CREATE_OR_ATTACH);
            sleepDeliveryManager(wakeupLatch);
            subscriber.asyncCloseSubscription(topic, subid, new Callback<Void>() {
                @Override
                public void operationFinished(Object ctx, Void resultOfOperation) {
                    closeLatch.countDown();

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            final ByteString topic = ByteString.copyFromUtf8("TestSimpleClientTopicBusy");
            final ByteString subid = ByteString.copyFromUtf8("mysub");


            subscriber1.subscribe(topic, subid, CreateOrAttach.CREATE_OR_ATTACH);
            subscriber1.closeSubscription(topic, subid);
            subscriber2.subscribe(topic, subid, CreateOrAttach.ATTACH);
            subscriber2.closeSubscription(topic, subid);


            client1.close();
            client2.close();
        }

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    public void testSyncHubSubscribeWithInvalidSubscriberId() throws Exception {
        Client hubClient = new HedwigHubClient(new ClientConfiguration());
        Subscriber hubSubscriber = hubClient.getSubscriber();
        boolean subscribeSuccess = false;
        try {
            hubSubscriber.subscribe(getTopic(0), localSubscriberId, CreateOrAttach.CREATE_OR_ATTACH);
        } catch (InvalidSubscriberIdException e) {
            subscribeSuccess = true;
        } catch (Exception ex) {
            subscribeSuccess = false;
        }

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    public void testSyncHubSubscribeWithInvalidSubscriberId() throws Exception {
        Client hubClient = new HedwigHubClient(new ClientConfiguration());
        Subscriber hubSubscriber = hubClient.getSubscriber();
        boolean subscribeSuccess = false;
        try {
            hubSubscriber.subscribe(getTopic(0), localSubscriberId, CreateOrAttach.CREATE_OR_ATTACH);
        } catch (InvalidSubscriberIdException e) {
            subscribeSuccess = true;
        } catch (Exception ex) {
            subscribeSuccess = false;
        }

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