Example usage for com.rabbitmq.client ConfirmListener ConfirmListener

Introduction

In this page you can find the example usage for com.rabbitmq.client ConfirmListener ConfirmListener.

Prototype

ConfirmListener

Source Link

Usage

From source file:mobisocial.musubi.service.AMQPService.java

License:Apache License

void initiateConnection() {
    if (mConnection != null) {
        //just for information sake, this is a legitimate event
        Log.i(TAG, "Already connected when triggered to initiate connection");
        return;/*from w w w .j  av a 2  s  .  c o  m*/
    }
    Log.i(TAG, "Network is up connection is being attempted");
    try {
        mConnection = mConnectionFactory.newConnection();
        mConnection.addShutdownListener(new ShutdownListener() {
            @Override
            public void shutdownCompleted(ShutdownSignalException cause) {
                if (!cause.isInitiatedByApplication()) {
                    //start the connection
                    mAMQPHandler.post(new Runnable() {
                        @Override
                        public void run() {
                            closeConnection(FailedOperationType.FailedConnect);
                        }
                    });
                }
            }
        });

        mDeclaredGroups = new HashSet<String>();
        mMessageWaitingForAck = new TLongHashSet();
        mMessageWaitingForAckByTag = new TLongLongHashMap();

        mIncomingChannel = mConnection.createChannel();
        mIncomingChannel.basicQos(10);
        attachToQueues();

        mOutgoingChannel = mConnection.createChannel();
        //TODO: these callbacks run in another thread, so this is not correct
        //we need some synchronized or a customized ExecutorService that
        //posts to the handler (though, that may not be possible if they demand
        //n threads to run on
        mOutgoingChannel.addConfirmListener(new ConfirmListener() {
            @Override
            public void handleNack(long deliveryTag, boolean multiple) throws IOException {
                //don't immediately try to resend, just flag it, it will be rescanned later
                //this probably only happens if the server is temporarily out of space
                long encoded_id = mMessageWaitingForAckByTag.get(deliveryTag);
                mMessageWaitingForAckByTag.remove(deliveryTag);
                mMessageWaitingForAck.remove(encoded_id);
            }

            @Override
            public void handleAck(long deliveryTag, boolean multiple) throws IOException {
                //delivered!
                long encoded_id = mMessageWaitingForAckByTag.get(deliveryTag);

                //mark the db entry as processed
                MEncodedMessage encoded = mEncodedMessageManager.lookupMetadataById(encoded_id);
                assert (encoded.outbound_);
                encoded.processed_ = true;
                encoded.processedTime_ = new Date().getTime();
                mEncodedMessageManager.updateEncodedMetadata(encoded);

                mMessageWaitingForAckByTag.remove(deliveryTag);
                mMessageWaitingForAck.remove(encoded_id);

                long feedId = mEncodedMessageManager.getFeedIdForEncoded(encoded_id);
                if (feedId != -1) {
                    Uri feedUri = MusubiContentProvider.uriForItem(Provided.FEEDS_ID, feedId);
                    getContentResolver().notifyChange(feedUri, null);
                }
            }
        });
        mOutgoingChannel.confirmSelect();
        mConnectionReady = true;

        //once we have successfully done our work, we can
        //reset the failure delay, FYI, internal exceptions in the
        //message sender will cause backoff to MAX_DELAY
        if (mFailedOperation == FailedOperationType.FailedConnect) {
            mFailureDelay = MIN_DELAY;
            mFailedOperation = FailedOperationType.FailedNone;
        }
    } catch (Throwable e) {
        closeConnection(FailedOperationType.FailedConnect);
        Log.e(TAG, "Failed to connect to AMQP", e);
    }
    //slight downside here is that if publish a message causes the fault,
    //then we will always reconnect and disconnect
    sendMessages();
}

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From source file:mx.bigdata.utils.amqp.HaPublisher.java

License:Apache License

private void initConfirms() throws Exception {
    getChannel().addConfirmListener(new ConfirmListener() {
        public void handleAck(long seqNo, boolean multiple) {
            if (multiple) {
                Map<Long, PublishWrapper> headMap = unconfirmedMap.headMap(seqNo + 1);
                logger.trace(//from  ww  w.j  a  v a 2s . co m
                        tag + " confirmed " + headMap.size() + " messages up to " + seqNo + " sequence number");
                headMap.clear();
            } else {
                logger.trace(tag + " confirmed 1 messages with " + seqNo + " sequence number");
                unconfirmedMap.remove(seqNo);
            }
        }

        public void handleNack(long seqNo, boolean multiple) {
            if (multiple) {
                Iterator<Map.Entry<Long, PublishWrapper>> entries = unconfirmedMap.headMap(seqNo + 1).entrySet()
                        .iterator();
                while (entries.hasNext()) {
                    Map.Entry<Long, PublishWrapper> entry = entries.next();
                    try {
                        entry.getValue().publish();
                    } catch (Exception ex) {
                        logger.error(tag + " unable to republish unconfirmed message: " + entry.getKey());
                    }
                    entries.remove();
                }
            } else {
                try {
                    unconfirmedMap.remove(seqNo).publish();
                } catch (Exception ex) {
                    logger.error(tag + " unable to republish unconfirmed message: " + seqNo);
                }
            }
        }
    });
    getChannel().confirmSelect();
}

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From source file:org.mule.transport.amqp.DefaultAmqpConfirmsManager.java

License:Open Source License

public void requestConfirm(Channel channel, MuleEvent event) throws Exception {
    if (!handlesConfirms()) {
        return;/*from  www .j  av a  2  s .co m*/
    }

    channel.addConfirmListener(new ConfirmListener() {
        public void handleAck(long deliveryTag, boolean multiple) throws IOException {
            confirm(deliveryTag, true);
        }

        public void handleNack(long deliveryTag, boolean multiple) throws IOException {
            confirm(deliveryTag, false);
        }
    });

    channel.confirmSelect();
    long nextSequence = channel.getNextPublishSeqNo();
    pendingConfirms.put(nextSequence, new ConfirmHandler());
    event.setFlowVariable(AmqpConstants.NEXT_PUBLISH_SEQ_NO, nextSequence);

}

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From source file:org.mule.transport.amqp.internal.confirm.DefaultConfirmsManager.java

License:Open Source License

public void requestConfirm(Channel channel, MuleEvent event) throws Exception {
    if (!handlesConfirms()) {
        return;/*ww w. j  a  v  a 2s. c  o  m*/
    }

    channel.addConfirmListener(new ConfirmListener() {
        public void handleAck(long deliveryTag, boolean multiple) throws IOException {
            confirm(deliveryTag, true);
        }

        public void handleNack(long deliveryTag, boolean multiple) throws IOException {
            confirm(deliveryTag, false);
        }
    });

    channel.confirmSelect();
    long nextSequence = channel.getNextPublishSeqNo();
    pendingConfirms.put(nextSequence, new ConfirmHandler());
    event.setFlowVariable(AmqpConnector.MESSAGE_PROPERTY_NEXT_PUBLISH_SEQ_NO, nextSequence);

}

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