amqp

问题 Currently, I am trying to write a 'notification service' based on Maven, Quarkus and SmallRye Reactive Messaging in Kotlin. As a base I have an example in Java which works fine and I was trying to "translate" it into Kotlin. The way I want it to work is, that I send an HTTP request (e.g. GET http://localhost:8080/search/{word}) and the system sends the 'word' (here a String) to the queue 'queries' of the Artemis AMQP message Broker. Another system subscribes to the message Broker and fetches

问题 I'm confused about the difference of Channel Adapters and Gateways in spring integration. As stated in https://stackoverflow.com/a/29992267/467944 by @gary-russell channel adapters are un-diirectional while gateways are bi-directional. If this is the case, why there is a amqp inbound gateway as well as an amqp outbound gateway? What I'm trying to accomplish in the end is the following: Http request received within a controller place message on amqp queue consumer consumes messages and put

问题 I have two services, Manager and Collector . Manager is subscribed to Queue COLLECTED_USER with routingKey user.collected and invokes a UserCollected handler. Collector is subscribed to Queue COLLECT_USER with routingKey user.collect and invokes a CollectUser handler. There can be multiple collectors so I have set exclusive to false (see below for code). There are also other services that listen for events like user.created , user.updated , user.deleted In addition there are services that

问题 This qeuestion is on consuming the messages using AMQP in .Net. The documentation recommends amqpnetlite: https://access.redhat.com/documentation/en-us/red_hat_amq/7.0/html-single/using_the_amq_.net_client/index On subscribing to an address using AMQPNetLite, the address and the queue will be auto-created. The auto-created queue is always "unicast" though. I have not been able to auto-create a multicast queue that allowed any number of consumers. Code: private async Task RenewSession() {

问题 Am trying to use AMQP with ActiveMQ and am getting the following error Transport scheme NOT recognized: [amqp] This is my code ConnectionFactory connectionFactory = new ActiveMQConnectionFactory( "amqp://localhost:61616"); Connection connection = null; try { connection = connectionFactory.createConnection(); connection.start(); Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); Queue queue = session.createQueue("somequeue"); MessageProducer producer = session

问题 Two queues are bound to a topic exchange with the following routing keys: Queue A, bound with routing key pattern match *.foo Queue B, bound with routing key pattern match *.bar I'd like to add a third queue to this exchange that receives messages that are neither foo messages nor bar messages. If I bind this queue with a # routing key, I naturally get all messages I need, but including foo 's and bar 's which I don't want. Any way to route messages patching a pattern NOT *.foo AND NOT *.bar

问题 It was working, but now it's not working anymore! I'm using php-amqplib and RabbitMQ. when I'm trying to create a new AMQP connection: $connection = new AMQPConnection('localhost', 5672, 'username', 'password'); The code inside the library that is causing this error is: public function read($n) { $res = ''; $read = 0; while ($read < $n && !feof($this->sock) && (false !== ($buf = fread($this->sock, $n - $read)))) { if ($buf === '') { continue; } $read += strlen($buf); $res .= $buf; } if

问题 I've got an integration flow that looks like the following: @Bean public IntegrationFlow auditFlow(@Qualifier("eventLoggingConnectionFactory") ConnectionFactory connectionFactory, @Qualifier("writeChannel") MessageChannel messageChannel, @Qualifier("parseErrorChannel") MessageChannel errorChannel) { return IntegrationFlows .from(Amqp.inboundAdapter(connectionFactory, auditQueue) .errorChannel(errorChannel) .concurrentConsumers(numConsumers) .messageConverter(new MongoMessageConverter())) //

问题 I have some queues bound to one topic exchange, e.g. with routing keys: 1) big.yellow.rabbit 2) small.*.dog 3) small.*.* 4) *.*.cat 5) *.*.* I want the RabbitMQ to choose only one queue to place my message by following logic: the number of coincident tags should be as big as possible coincidence of first tag is more importat than for second... Examples for aforementioned keys: big.yellow.rabbit -> 1) small.yellow.rabbit -> 3) small.white.cat -> 3) big.grey.cat -> 4) big.yellow.pig -> 5) I've

问题 Is it possible to configure the broker to insert a timestamp header if it is missing in the message? So if the publishing client does not add the timestamp header, can the broker insert it with a timestamp value matching the moment the message was received by the exchange? Where should I look for that configuration? Or is that a bad idea? 回答1: So to answer your question, no there is no way to configure the broker to insert a timestamp. Nothing the in AMQP specification requires a message to