Examples of HedwigSubscriber

Examples of org.apache.hedwig.client.netty.HedwigSubscriber

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                Callback<Void> postCb = synchronous ? cb : CallbackUtils.logger(LOGGER,
                        "all cross-region subscriptions succeeded",
                        "at least one cross-region subscription failed");
                final Callback<Void> mcb = CallbackUtils.multiCallback(clients.size(), postCb, ctx);
                for (final HedwigHubClient client : clients) {
                    final HedwigSubscriber sub = client.getSubscriber();
                    sub.asyncSubscribe(topic, mySubId, CreateOrAttach.CREATE_OR_ATTACH, new Callback<Void>() {
                        @Override
                        public void operationFinished(Object ctx, Void resultOfOperation) {
                            if (LOGGER.isDebugEnabled())
                                LOGGER.debug("cross-region subscription done for topic " + topic.toStringUtf8());
                            try {
                                sub.startDelivery(topic, mySubId, new MessageHandler() {
                                    @Override
                                    public void deliver(final ByteString topic, ByteString subscriberId, Message msg,
                                    final Callback<Void> callback, final Object context) {
                                        // When messages are first published
                                        // locally, the PublishHandler sets the
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Examples of org.apache.hedwig.client.netty.HedwigSubscriber

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     * @param contex
     *          Callback context
     */
    private void doRemoteSubscribe(final HedwigHubClient client, final ByteString topic, final boolean synchronous,
                                   final Callback<Void> mcb, final Object context) {
        final HedwigSubscriber sub = client.getSubscriber();
        try {
            if (sub.hasSubscription(topic, mySubId)) {
                if (LOGGER.isDebugEnabled()) {
                    LOGGER.debug("[" + myRegion + "] cross-region subscription for topic "
                                 + topic.toStringUtf8() + " has existed before.");
                }
                mcb.operationFinished(null, null);
                return;
            }
        } catch (PubSubException e) {
            LOGGER.error("[" + myRegion + "] checking cross-region subscription for topic "
                         + topic.toStringUtf8() + " failed (this is should not happen): ", e);
            mcb.operationFailed(context, e);
            return;
        }
        sub.asyncSubscribe(topic, mySubId, CreateOrAttach.CREATE_OR_ATTACH, new Callback<Void>() {
            @Override
            public void operationFinished(Object ctx, Void resultOfOperation) {
                if (LOGGER.isDebugEnabled())
                    LOGGER.debug("[" + myRegion + "] cross-region subscription done for topic " + topic.toStringUtf8());
                try {
                    sub.startDelivery(topic, mySubId, new MessageHandler() {
                        @Override
                        public void deliver(final ByteString topic, ByteString subscriberId, Message msg,
                        final Callback<Void> callback, final Object context) {
                            // When messages are first published
                            // locally, the PublishHandler sets the
View Full Code Here

Examples of org.apache.hedwig.client.netty.HedwigSubscriber

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        }, null) {
            @Override
            public void run() {
                Callback<Void> mcb = CallbackUtils.multiCallback(clients.size(), cb, ctx);
                for (final HedwigHubClient client : clients) {
                    final HedwigSubscriber sub = client.getSubscriber();
                    try {
                        if (!sub.hasSubscription(topic, mySubId)) {
                            if (LOGGER.isDebugEnabled()) {
                                LOGGER.debug("[" + myRegion + "] cross-region subscription for topic "
                                             + topic.toStringUtf8() + " has existed before.");
                            }
                            mcb.operationFinished(null, null);
                            continue;
                        }
                    } catch (PubSubException e) {
                        LOGGER.error("[" + myRegion + "] checking cross-region subscription for topic "
                                     + topic.toStringUtf8() + " failed (this is should not happen): ", e);
                        mcb.operationFailed(ctx, e);
                        continue;
                    }
                    sub.asyncUnsubscribe(topic, mySubId, mcb, null);
                }
            }
        });
    }
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Examples of org.apache.hedwig.client.netty.HedwigSubscriber

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     * @param contex
     *          Callback context
     */
    private void doRemoteSubscribe(final HedwigHubClient client, final ByteString topic, final boolean synchronous,
                                   final Callback<Void> mcb, final Object context) {
        final HedwigSubscriber sub = client.getSubscriber();
        try {
            if (sub.hasSubscription(topic, mySubId)) {
                if (LOGGER.isDebugEnabled()) {
                    LOGGER.debug("[" + myRegion.toStringUtf8() + "] cross-region subscription for topic "
                                 + topic.toStringUtf8() + " has existed before.");
                }
                mcb.operationFinished(null, null);
                return;
            }
        } catch (PubSubException e) {
            LOGGER.error("[" + myRegion.toStringUtf8() + "] checking cross-region subscription for topic "
                         + topic.toStringUtf8() + " failed (this is should not happen): ", e);
            mcb.operationFailed(context, e);
            return;
        }
        sub.asyncSubscribe(topic, mySubId, CreateOrAttach.CREATE_OR_ATTACH, new Callback<Void>() {
            @Override
            public void operationFinished(Object ctx, Void resultOfOperation) {
                if (LOGGER.isDebugEnabled())
                    LOGGER.debug("[" + myRegion.toStringUtf8() + "] cross-region subscription done for topic " + topic.toStringUtf8());
                try {
                    sub.startDelivery(topic, mySubId, new MessageHandler() {
                        @Override
                        public void deliver(final ByteString topic, ByteString subscriberId, Message msg,
                        final Callback<Void> callback, final Object context) {
                            // When messages are first published
                            // locally, the PublishHandler sets the
View Full Code Here

Examples of org.apache.hedwig.client.netty.HedwigSubscriber

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        }, null) {
            @Override
            public void run() {
                Callback<Void> mcb = CallbackUtils.multiCallback(clients.size(), cb, ctx);
                for (final HedwigHubClient client : clients) {
                    final HedwigSubscriber sub = client.getSubscriber();
                    try {
                        if (!sub.hasSubscription(topic, mySubId)) {
                            if (LOGGER.isDebugEnabled()) {
                                LOGGER.debug("[" + myRegion.toStringUtf8() + "] cross-region subscription for topic "
                                             + topic.toStringUtf8() + " has existed before.");
                            }
                            mcb.operationFinished(null, null);
                            continue;
                        }
                    } catch (PubSubException e) {
                        LOGGER.error("[" + myRegion.toStringUtf8() + "] checking cross-region subscription for topic "
                                     + topic.toStringUtf8() + " failed (this is should not happen): ", e);
                        mcb.operationFailed(ctx, e);
                        continue;
                    }
                    sub.asyncUnsubscribe(topic, mySubId, mcb, null);
                }
            }
        });
    }
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