Package org.apache.hedwig.client.handlers

Examples of org.apache.hedwig.client.handlers.PubSubCallback

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            logger.debug("Calling a sync subUnsub request for topic: " + topic.toStringUtf8() + ", subscriberId: "
                         + subscriberId.toStringUtf8() + ", operationType: " + operationType + ", createOrAttach: "
                         + createOrAttach);
        PubSubData pubSubData = new PubSubData(topic, null, subscriberId, operationType, createOrAttach, null, null);
        synchronized (pubSubData) {
            PubSubCallback pubSubCallback = new PubSubCallback(pubSubData);
            asyncSubUnsub(topic, subscriberId, pubSubCallback, null, operationType, createOrAttach);
            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()) {
                // See what the exception was that was thrown when the operation
                // failed.
                PubSubException failureException = pubSubCallback.getFailureException();
                if (failureException == null) {
                    // This should not happen as the operation failed but a null
                    // PubSubException was passed. Log a warning message but
                    // throw a generic ServiceDownException.
                    logger.error("Sync SubUnsub operation failed but no PubSubException was passed!");
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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()) {
                throw new ServiceDownException("Exception while trying to close the subscription for topic: "
                                               + topic.toStringUtf8() + ", subscriberId: " + subscriberId.toStringUtf8());
            }
        }
    }
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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()) {
                // See what the exception was that was thrown when the operation
                // failed.
                PubSubException failureException = pubSubCallback.getFailureException();
                if (failureException == null) {
                    // This should not happen as the operation failed but a null
                    // PubSubException was passed. Log a warning message but
                    // throw a generic ServiceDownException.
                    logger.error("Sync Publish operation failed but no PubSubException was passed!");
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            }
            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()) {
                // See what the exception was that was thrown when the operation
                // failed.
                PubSubException failureException = pubSubCallback.getFailureException();
                if (failureException == null) {
                    // This should not happen as the operation failed but a null
                    // PubSubException was passed. Log a warning message but
                    // throw a generic ServiceDownException.
                    logger.error("Sync SubUnsub operation failed but no PubSubException was passed!");
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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()) {
                throw new ServiceDownException("Exception while trying to close the subscription for topic: "
                                               + topic.toStringUtf8() + ", subscriberId: " + subscriberId.toStringUtf8());
            }
        }
    }
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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()) {
                // See what the exception was that was thrown when the operation
                // failed.
                PubSubException failureException = pubSubCallback.getFailureException();
                if (failureException == null) {
                    // This should not happen as the operation failed but a null
                    // PubSubException was passed. Log a warning message but
                    // throw a generic ServiceDownException.
                    logger.error("Sync Publish operation failed but no PubSubException was passed!");
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            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()) {
                // See what the exception was that was thrown when the operation
                // failed.
                PubSubException failureException = pubSubCallback.getFailureException();
                if (failureException == null) {
                    // This should not happen as the operation failed but a null
                    // PubSubException was passed. Log a warning message but
                    // throw a generic ServiceDownException.
                    logger.error("Sync Publish operation failed but no PubSubException was passed!");
                    throw new ServiceDownException("Server ack response to publish request is not successful");
                }
                // For the expected exceptions that could occur, just rethrow
                // them.
                else if (failureException instanceof CouldNotConnectException) {
                    throw (CouldNotConnectException) failureException;
                } else if (failureException instanceof ServiceDownException) {
                    throw (ServiceDownException) failureException;
                } else {
                    // For other types of PubSubExceptions, just throw a generic
                    // ServiceDownException but log a warning message.
                    logger.error("Unexpected exception type when a sync publish operation failed: ",
                                 failureException);
                    throw new ServiceDownException("Server ack response to publish request is not successful");
                }
            }

            ResponseBody respBody = pubSubCallback.getResponseBody();
            if (null == respBody) {
                return null;
            }
            return respBody.hasPublishResponse() ? respBody.getPublishResponse() : null;
        }
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            }
            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()) {
                // See what the exception was that was thrown when the operation
                // failed.
                PubSubException failureException = pubSubCallback.getFailureException();
                if (failureException == null) {
                    // This should not happen as the operation failed but a null
                    // PubSubException was passed. Log a warning message but
                    // throw a generic ServiceDownException.
                    logger.error("Sync SubUnsub operation failed but no PubSubException was passed!");
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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);
            doAsyncCloseSubscription(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()) {
                throw new ServiceDownException("Exception while trying to close the subscription for topic: "
                                               + topic.toStringUtf8() + ", subscriberId: " + subscriberId.toStringUtf8());
            }
        }
    }
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Related Classes of org.apache.hedwig.client.handlers.PubSubCallback

  • org.apache.hedwig.client.netty.HedwigPublisher
  • org.apache.hedwig.client.netty.HedwigSubscriber
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