event-bus/distributed/src/main/java/org/apache/james/events/RegistrationBinder.java

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package org.apache.james.events;

import reactor.core.publisher.Mono;
import reactor.rabbitmq.BindingSpecification;
import reactor.rabbitmq.Sender;

class RegistrationBinder {
    private final NamingStrategy namingStrategy;
    private final Sender sender;
    private final RegistrationQueueName registrationQueue;

    RegistrationBinder(NamingStrategy namingStrategy, Sender sender, RegistrationQueueName registrationQueue) {
        this.namingStrategy = namingStrategy;
        this.sender = sender;
        this.registrationQueue = registrationQueue;
    }

    Mono<Void> bind(RegistrationKey key) {
        return sender.bind(bindingSpecification(key))
            .then();
    }

    Mono<Void> unbind(RegistrationKey key) {
        return sender.unbind(bindingSpecification(key))
            .then();
    }

    private BindingSpecification bindingSpecification(RegistrationKey key) {
        RoutingKeyConverter.RoutingKey routingKey = RoutingKeyConverter.RoutingKey.of(key);
        return BindingSpecification.binding()
            .exchange(namingStrategy.exchange())
            .queue(registrationQueue.asString())
            .routingKey(routingKey.asString());
    }
}