1 package at.ac.tuwien.sbc.valesriegler.waiter.jms.messageListeners;
3 import javax.jms.Connection;
4 import javax.jms.DeliveryMode;
5 import javax.jms.JMSException;
6 import javax.jms.Message;
7 import javax.jms.MessageListener;
8 import javax.jms.MessageProducer;
9 import javax.jms.ObjectMessage;
10 import javax.jms.Session;
12 import org.apache.activemq.ActiveMQConnectionFactory;
13 import org.slf4j.Logger;
14 import org.slf4j.LoggerFactory;
16 import at.ac.tuwien.sbc.valesriegler.group.actions.OrderRequest;
17 import at.ac.tuwien.sbc.valesriegler.group.actions.OrderResponse;
18 import at.ac.tuwien.sbc.valesriegler.types.Order;
19 import at.ac.tuwien.sbc.valesriegler.types.PizzaOrder;
20 import at.ac.tuwien.sbc.valesriegler.waiter.Waiter;
23 * Listener listening on the WantToOrder MQ, handling all incomming messages.
28 public class WantToOrder implements MessageListener {
29 private static final Logger log = LoggerFactory.getLogger(WantToOrder.class);
30 private final Waiter waiter;
32 public WantToOrder(Waiter waiter) {
37 public void onMessage(Message msg) {
40 if (msg instanceof ObjectMessage) {
41 ObjectMessage objMsg = (ObjectMessage) msg;
42 Object obj = objMsg.getObject();
44 if (obj instanceof OrderRequest) {
45 OrderRequest orderrequest = (OrderRequest) obj;
46 log.debug("Received: " + orderrequest);
48 // generate random delay
49 Thread.sleep((long) (Math.random() * 10000));
51 ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://localhost:61616");
52 Connection connection = connectionFactory.createConnection();
54 Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
56 MessageProducer prodOP = session.createProducer(session.createQueue("OrderedPizzas"));
57 prodOP.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
59 // Create the queue for the cooks.
60 Order o = orderrequest.getGroupdata().getOrder();
61 for (PizzaOrder po : o.getOrderedPizzas()) {
62 prodOP.send(session.createObjectMessage(po));
65 // Also put the order in the Pending order queue for the waiter to
67 MessageProducer prodPending = session.createProducer(session.createQueue("PendingOrders"));
68 prodPending.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
69 prodPending.send(session.createObjectMessage(o));
71 MessageProducer informGroup = session.createProducer(session.createQueue("GroupConnector"));
72 informGroup.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
73 OrderResponse or = new OrderResponse(orderrequest.getGroupdata(), waiter.getId());
74 informGroup.send(session.createObjectMessage(or));
79 log.warn("Received unknown Object: " + obj);
82 log.warn("Received unknown Message: " + msg);
84 } catch (JMSException e) {
85 log.error("EXCEPTION!", e);
86 } catch (InterruptedException e) {
87 log.error("EXCEPTION!", e);