src/main/java/at/ac/tuwien/sbc/valesriegler/waiter/jms/messageListeners/WantToOrder.java

   1 package at.ac.tuwien.sbc.valesriegler.waiter.jms.messageListeners;
   2
   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;
  11
  12 import org.apache.activemq.ActiveMQConnectionFactory;
  13 import org.slf4j.Logger;
  14 import org.slf4j.LoggerFactory;
  15
  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;
  21
  22 public class WantToOrder implements MessageListener {
  23         private static final Logger log = LoggerFactory.getLogger(WantToOrder.class);
  24         private final Waiter waiter;
  25
  26         public WantToOrder(Waiter waiter) {
  27                 this.waiter = waiter;
  28         }
  29
  30         @Override
  31         public void onMessage(Message msg) {
  32                 try {
  33                         msg.acknowledge();
  34                         if (msg instanceof ObjectMessage) {
  35                                 ObjectMessage objMsg = (ObjectMessage) msg;
  36                                 Object obj = objMsg.getObject();
  37
  38                                 if (obj instanceof OrderRequest) {
  39                                         OrderRequest orderrequest = (OrderRequest) obj;
  40                                         log.debug("Received: " + orderrequest);
  41
  42                                         // generate random delay
  43                                         Thread.sleep((long) (Math.random() * 10000));
  44
  45                                         ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://localhost:61616");
  46                                         Connection connection = connectionFactory.createConnection();
  47                                         connection.start();
  48                                         Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
  49
  50                                         MessageProducer prodOP = session.createProducer(session.createQueue("OrderedPizzas"));
  51                                         prodOP.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
  52
  53                                         // Create the queue for the cooks.
  54                                         Order o = orderrequest.getGroupdata().getOrder();
  55                                         for (PizzaOrder po : o.getOrderedPizzas()) {
  56                                                 prodOP.send(session.createObjectMessage(po));
  57                                         }
  58
  59                                         // Also put the order in the Pending order queue for the waiter to
  60                                         // check.
  61                                         MessageProducer prodPending = session.createProducer(session.createQueue("PendingOrders"));
  62                                         prodPending.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
  63                                         prodPending.send(session.createObjectMessage(o));
  64
  65                                         MessageProducer informGroup = session.createProducer(session.createQueue("GroupConnector"));
  66                                         informGroup.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
  67                                         OrderResponse or = new OrderResponse(orderrequest.getGroupdata(), waiter.getId());
  68                                         informGroup.send(session.createObjectMessage(or));
  69
  70                                         session.close();
  71                                         connection.close();
  72                                 } else {
  73                                         log.warn("Received unknown Object: " + obj);
  74                                 }
  75                         } else {
  76                                 log.warn("Received unknown Message: " + msg);
  77                         }
  78                 } catch (JMSException e) {
  79                         log.error("EXCEPTION!", e);
  80                 } catch (InterruptedException e) {
  81                         log.error("EXCEPTION!", e);
  82                 }
  83         }
  84 }