Examples of org.apache.hedwig.client.data.PubSubData

org.apache.hedwig.client.data.PubSubData
Wrapper class to store all of the data points needed to encapsulate all PubSub type of request operations the client will do. This includes knowing all of the information needed if we need to redo the publish/subscribe request in case of a server redirect. This will be used for all sync/async calls, and for all the known types of request messages to send to the server hubs: Publish, Subscribe, Unsubscribe, and Consume.

                debugMsg.append(", createOrAttach: ").append(options.getCreateOrAttach())
                        .append(", messageBound: ").append(options.getMessageBound());
            }
            logger.debug(debugMsg.toString());
        }
        PubSubData pubSubData = new PubSubData(topic, null, subscriberId, operationType, options, null, null);
        synchronized (pubSubData) {
            PubSubCallback pubSubCallback = new PubSubCallback(pubSubData);
            asyncSubUnsub(topic, subscriberId, pubSubCallback, null, operationType, options);
            try {
                while (!pubSubData.isDone)
                    pubSubData.wait();
            } catch (InterruptedException e) {
                throw new ServiceDownException("Interrupted Exception while waiting for async subUnsub call");
            }
            // Check from the PubSubCallback if it was successful or not.
            if (!pubSubCallback.getIsCallSuccessful()) {

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            }
            logger.debug(debugMsg.toString());
        }
        // Check if we know which server host is the master for the topic we are
        // subscribing to.
        PubSubData pubSubData = new PubSubData(topic, null, subscriberId, operationType, options, callback,
                                               context);
        if (client.topic2Host.containsKey(topic)) {
            InetSocketAddress host = client.topic2Host.get(topic);
            if (operationType.equals(OperationType.UNSUBSCRIBE) && client.getPublisher().host2Channel.containsKey(host)) {
                // For unsubscribes, we can reuse the channel connections to the

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        if (!topicSubscriber2Channel.containsKey(topicSubscriber)) {
            throw new ClientNotSubscribedException(
                "Cannot send consume message since client is not subscribed to topic: " + topic.toStringUtf8()
                + ", subscriberId: " + subscriberId.toStringUtf8());
        }
        PubSubData pubSubData = new PubSubData(topic, null, subscriberId, OperationType.CONSUME, null, null, null);
        // Send the consume message to the server using the same subscribe
        // channel that the topic subscription uses.
        doConsume(pubSubData, topicSubscriber2Channel.get(topicSubscriber), messageSeqId);
    }

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            }
        });
    }


    public void closeSubscription(ByteString topic, ByteString subscriberId) throws ServiceDownException {
        PubSubData pubSubData = new PubSubData(topic, null, subscriberId, null, null, null, null);
        synchronized (pubSubData) {
            PubSubCallback pubSubCallback = new PubSubCallback(pubSubData);
            asyncCloseSubscription(topic, subscriberId, pubSubCallback, null);
            try {
                while (!pubSubData.isDone)
                    pubSubData.wait();
            } catch (InterruptedException e) {
                throw new ServiceDownException("Interrupted Exception while waiting for asyncCloseSubscription call");
            }
            // Check from the PubSubCallback if it was successful or not.
            if (!pubSubCallback.getIsCallSuccessful()) {

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    }


    public void publish(ByteString topic, Message msg) throws CouldNotConnectException, ServiceDownException {
        if (logger.isDebugEnabled())
            logger.debug("Calling a sync publish for topic: " + topic.toStringUtf8() + ", msg: " + msg);
        PubSubData pubSubData = new PubSubData(topic, msg, null, OperationType.PUBLISH, null, null, null);
        synchronized (pubSubData) {
            PubSubCallback pubSubCallback = new PubSubCallback(pubSubData);
            asyncPublish(topic, msg, pubSubCallback, null);
            try {
                while (!pubSubData.isDone)
                    pubSubData.wait();
            } catch (InterruptedException e) {
                throw new ServiceDownException("Interrupted Exception while waiting for async publish call");
            }
            // Check from the PubSubCallback if it was successful or not.
            if (!pubSubCallback.getIsCallSuccessful()) {

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    public void asyncPublish(ByteString topic, Message msg, Callback<Void> callback, Object context) {
        if (logger.isDebugEnabled())
            logger.debug("Calling an async publish for topic: " + topic.toStringUtf8() + ", msg: " + msg);
        // Check if we already have a Channel connection set up to the server
        // for the given Topic.
        PubSubData pubSubData = new PubSubData(topic, msg, null, OperationType.PUBLISH, null, callback, context);
        if (client.topic2Host.containsKey(topic)) {
            InetSocketAddress host = client.topic2Host.get(topic);
            if (host2Channel.containsKey(host)) {
                // We already have the Channel connection for the server host so
                // do the publish directly. We will deal with redirect logic

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        if (logger.isDebugEnabled()) {
            logger.debug("Calling a sync publish for topic: {}, msg: {}.",
                         topic.toStringUtf8(), msg);
        }
        PubSubData pubSubData = new PubSubData(topic, msg, null, OperationType.PUBLISH, null, null, null);
        synchronized (pubSubData) {
            PubSubCallback pubSubCallback = new PubSubCallback(pubSubData);
            asyncPublishWithResponseImpl(topic, msg, pubSubCallback, null);
            try {
                while (!pubSubData.isDone)
                    pubSubData.wait();
            } catch (InterruptedException e) {
                throw new ServiceDownException("Interrupted Exception while waiting for async publish call");
            }
            // Check from the PubSubCallback if it was successful or not.
            if (!pubSubCallback.getIsCallSuccessful()) {

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                                              Object context) {
        if (logger.isDebugEnabled()) {
            logger.debug("Calling an async publish for topic: {}, msg: {}.",
                         topic.toStringUtf8(), msg);
        }
        PubSubData pubSubData = new PubSubData(topic, msg, null, OperationType.PUBLISH, null,
                                               callback, context);
        channelManager.submitOp(pubSubData);
    }

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                debugMsg.append(", createOrAttach: ").append(options.getCreateOrAttach())
                        .append(", messageBound: ").append(options.getMessageBound());
            }
            logger.debug(debugMsg.toString());
        }
        PubSubData pubSubData = new PubSubData(topic, null, subscriberId, operationType, options, null, null);
        synchronized (pubSubData) {
            PubSubCallback pubSubCallback = new PubSubCallback(pubSubData);
            asyncSubUnsub(topic, subscriberId, pubSubCallback, null, operationType, options);
            try {
                while (!pubSubData.isDone)
                    pubSubData.wait();
            } catch (InterruptedException e) {
                throw new ServiceDownException("Interrupted Exception while waiting for async subUnsub call");
            }
            // Check from the PubSubCallback if it was successful or not.
            if (!pubSubCallback.getIsCallSuccessful()) {

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                    SubscriptionOptions.newBuilder(options).setMessageBound(
                        cfg.getSubscriptionMessageBound());
                options = soBuilder.build();
            }
        }
        PubSubData pubSubData = new PubSubData(topic, null, subscriberId, operationType,
                                               options, callback, context);
        channelManager.submitOp(pubSubData);
    }

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Related Classes of org.apache.hedwig.client.data.PubSubData

org.apache.hedwig.client.netty.HedwigPublisher

org.apache.hedwig.client.netty.HedwigSubscriber

org.apache.hedwig.client.netty.impl.HChannelHandler

org.apache.hedwig.client.netty.impl.multiplex.MultiplexSubscribeResponseHandler

org.apache.hedwig.client.netty.ResponseHandler

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