src/main/java/at/ac/tuwien/sbc/valesriegler/cook/jms/messageListeners/OrdersToCook.java

   1 package at.ac.tuwien.sbc.valesriegler.cook.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.cook.actions.OrderInfo;
  17 import at.ac.tuwien.sbc.valesriegler.cook.jms.JMSCook;
  18 import at.ac.tuwien.sbc.valesriegler.group.actions.OrderRequest;
  19 import at.ac.tuwien.sbc.valesriegler.types.OrderStatus;
  20 import at.ac.tuwien.sbc.valesriegler.types.Pizza;
  21 import at.ac.tuwien.sbc.valesriegler.types.PizzaOrder;
  22 import at.ac.tuwien.sbc.valesriegler.types.PizzaOrderStatus;
  23
  24 /**
  25  * Cook the requested pizza.
  26  *
  27  * @author jan
  28  *
  29  */
  30 public class OrdersToCook implements MessageListener {
  31         private static final Logger log = LoggerFactory.getLogger(OrdersToCook.class);
  32         private final JMSCook cook;
  33
  34         public OrdersToCook(JMSCook cook) {
  35                 this.cook = cook;
  36         }
  37
  38         @Override
  39         public void onMessage(Message msg) {
  40                 try {
  41                         synchronized (cook) {
  42                                 if (msg instanceof ObjectMessage) {
  43                                         ObjectMessage objMsg = (ObjectMessage) msg;
  44                                         Object obj = objMsg.getObject();
  45
  46                                         if (obj instanceof OrderRequest) {
  47                                                 OrderRequest orderrequest = (OrderRequest) obj;
  48                                                 log.debug("Received: " + orderrequest);
  49
  50                                                 for (PizzaOrder pizzaorder : orderrequest.getGroupdata().getOrder().getOrderedPizzas()) {
  51                                                         pizzaorder.setStatus(PizzaOrderStatus.IN_PREPARATION);
  52                                                 }
  53
  54                                                 ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://localhost:61616");
  55                                                 Connection connection = connectionFactory.createConnection();
  56                                                 connection.start();
  57
  58                                                 // inform pizzeria
  59                                                 Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
  60                                                 MessageProducer prod = session.createProducer(session.createQueue("PizzeriaConnector"));
  61                                                 prod.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
  62                                                 OrderInfo oi = new OrderInfo(orderrequest.getGroupdata(), cook.getId());
  63                                                 prod.send(session.createObjectMessage(oi));
  64                                                 session.close();
  65
  66                                                 // generate random delay
  67                                                 for (PizzaOrder po : orderrequest.getGroupdata().getOrder().getOrderedPizzas()) {
  68                                                         Thread.sleep(po.getPizzaType().duration * 1000);
  69                                                         po.setStatus(PizzaOrderStatus.DONE);
  70                                                         Pizza p = Pizza.createPizzaFromPizzaOrder(po, cook.getId());
  71                                                         orderrequest.getGroupdata().getOrder().getCookedPizzas().add(p);
  72                                                 }
  73                                                 orderrequest.getGroupdata().getOrder().setStatus(OrderStatus.DELIVERY_PENDING);
  74
  75                                                 // let pizzas be delivered.
  76                                                 session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
  77                                                 prod = session.createProducer(session.createQueue("CookedOrders"));
  78                                                 prod.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
  79                                                 prod.send(session.createObjectMessage(oi));
  80
  81                                                 // inform pizeria
  82                                                 prod = session.createProducer(session.createQueue("PizzeriaConnector"));
  83                                                 prod.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
  84                                                 oi = new OrderInfo(orderrequest.getGroupdata(), cook.getId());
  85                                                 prod.send(session.createObjectMessage(oi));
  86                                                 session.close();
  87
  88                                                 connection.close();
  89                                         } else {
  90                                                 log.warn("Received unknown Object: " + obj);
  91                                         }
  92                                 } else {
  93                                         log.warn("Received unknown Message: " + msg);
  94                                 }
  95                                 msg.acknowledge();
  96                         }
  97                 } catch (JMSException e) {
  98                         log.error("EXCEPTION!", e);
  99                 } catch (InterruptedException e) {
 100                         log.error("EXCEPTION!", e);
 101                 }
 102         }
 103
 104         @Override
 105         public String toString() {
 106                 return "CookRequestedPizza [cook=" + cook + "]";
 107         }
 108 }