CODEWITHSUNDEEP
javaspringspring-bootspring-integrationspring-integration-amqp
omexIT
omexIT

Reputation: 113

How to dynamically add queue to exchange in Spring Integration

I have the following exchange in integrationcontext.xml

<!-- rabbit exchanges, queues, and bindings used by this app -->
<rabbit:topic-exchange name="newPaymentEventsExchange" auto-delete="false" durable="true">
    <rabbit:bindings>

    </rabbit:bindings>
</rabbit:topic-exchange>

I need to be able to dynamically add queues to the exchange based on values of channelName from the following object from the database, also I should be able to update when someone adds a new channel:

public class Channel {
    private Long channelId;
    private String tenantId;
    private String channelName;

    ------
    //Getters & setters
 }

Upvotes: 3

Views: 1496

Answers (1)

Artem Bilan
Artem Bilan

Reputation: 121292

Use AmqpAdmin to perform this kind of operations:

/**
 * Declare the given queue.
 * @param queue the queue to declare.
 * @return the name of the queue.
 */
String declareQueue(Queue queue);

/**
 * Declare a binding of a queue to an exchange.
 * @param binding a description of the binding to declare.
 */
void declareBinding(Binding binding);

You may consider to use QueueBuilder and BindingBuilder for convenience:

QueueBuilder.nonDurable("foo")
    .autoDelete()
    .exclusive()
    .withArgument("foo", "bar")
    .build()
...
BindingBuilder.bind(
            marketDataQueue()).to(marketDataExchange()).with(marketDataRoutingKey)

https://docs.spring.io/spring-amqp/docs/2.0.0.RELEASE/reference/html/_reference.html#broker-configuration

Upvotes: 4

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