server/queue/queue-rabbitmq/src/main/java/org/apache/james/queue/rabbitmq/RabbitMQMailQueueManagement.java

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package org.apache.james.queue.rabbitmq;

import java.util.Optional;
import java.util.stream.Stream;

import javax.inject.Inject;

import org.apache.james.backends.rabbitmq.RabbitMQConfiguration;
import org.apache.james.backends.rabbitmq.RabbitMQManagementAPI;

import com.google.common.annotations.VisibleForTesting;

public class RabbitMQMailQueueManagement {

    private final RabbitMQManagementAPI api;

    @Inject
    RabbitMQMailQueueManagement(RabbitMQConfiguration configuration) {
        api = RabbitMQManagementAPI.from(configuration);
    }

    @VisibleForTesting
    RabbitMQMailQueueManagement(RabbitMQManagementAPI api) {
        this.api = api;
    }

    Stream<MailQueueName> listCreatedMailQueueNames() {
        return api.listQueues()
            .stream()
            .map(RabbitMQManagementAPI.MessageQueue::getName)
            .map(MailQueueName::fromRabbitWorkQueueName)
            .flatMap(Optional::stream)
            .distinct();
    }

    public void deleteAllQueues() {
        api.listQueues()
            .forEach(queue -> api.deleteQueue("/", queue.getName()));
    }
}