2 * Copyright 2011 GRNET S.A. All rights reserved.
4 * Redistribution and use in source and binary forms, with or
5 * without modification, are permitted provided that the following
8 * 1. Redistributions of source code must retain the above
9 * copyright notice, this list of conditions and the following
12 * 2. Redistributions in binary form must reproduce the above
13 * copyright notice, this list of conditions and the following
14 * disclaimer in the documentation and/or other materials
15 * provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
18 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
24 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
27 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
30 * The views and conclusions contained in the software and
31 * documentation are those of the authors and should not be
32 * interpreted as representing official policies, either expressed
33 * or implied, of GRNET S.A.
36 package gr.grnet.aquarium.messaging
38 import com.rabbitmq.client.Address
40 import akka.amqp.{Topic, AMQP}
41 import akka.amqp.AMQP._
44 * Functionality for working with queues.
46 * @author Georgios Gousios <gousiosg@gmail.com>
51 private lazy val connection = AMQP.newConnection(
53 Array(new Address("1.2.3.4",5672)),
60 //Queues and exchnages are by default durable and persistent
61 val decl = ActiveDeclaration(durable = true, autoDelete = false)
63 //TODO: Methods to load configuration from {file, other resource}
65 def consumer(routekey: String, queue: String, receiver: ActorRef) =
67 connection = connection,
68 consumerParameters = ConsumerParameters(
69 routingKey = routekey,
70 deliveryHandler = receiver,
71 queueName = Some(queue),
72 queueDeclaration = decl
75 def producer(exchange: String) = AMQP.newProducer(
76 connection = connection,
77 producerParameters = ProducerParameters(
78 exchangeParameters = Some(ExchangeParameters(exchange, Topic, decl)),
79 channelParameters = Some(ChannelParameters(prefetchSize = 1))))