src/main/java/at/ac/tuwien/sbc/valesriegler/group/jms/JMSGroupConnector.java

   1 package at.ac.tuwien.sbc.valesriegler.group.jms;
   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.MessageConsumer;
   8 import javax.jms.MessageListener;
   9 import javax.jms.MessageProducer;
  10 import javax.jms.ObjectMessage;
  11 import javax.jms.Session;
  12
  13 import org.apache.activemq.ActiveMQConnectionFactory;
  14 import org.slf4j.Logger;
  15 import org.slf4j.LoggerFactory;
  16
  17 import at.ac.tuwien.sbc.valesriegler.common.AbstractAction;
  18 import at.ac.tuwien.sbc.valesriegler.group.AbstractGroupConnector;
  19 import at.ac.tuwien.sbc.valesriegler.group.Group;
  20 import at.ac.tuwien.sbc.valesriegler.group.GroupAgent;
  21 import at.ac.tuwien.sbc.valesriegler.group.actions.OrderRequest;
  22 import at.ac.tuwien.sbc.valesriegler.group.actions.OrderResponse;
  23 import at.ac.tuwien.sbc.valesriegler.group.actions.PayRequest;
  24 import at.ac.tuwien.sbc.valesriegler.group.actions.PayResponse;
  25 import at.ac.tuwien.sbc.valesriegler.group.actions.TableFree;
  26 import at.ac.tuwien.sbc.valesriegler.group.actions.TableRequest;
  27 import at.ac.tuwien.sbc.valesriegler.group.actions.TableResponse;
  28 import at.ac.tuwien.sbc.valesriegler.waiter.actions.DeliverOrder;
  29
  30 /**
  31  * This class handles the communication with other processes using JMS.
  32  *
  33  * @author jan
  34  *
  35  */
  36 public class JMSGroupConnector extends AbstractGroupConnector implements MessageListener {
  37         private static final Logger log = LoggerFactory.getLogger(JMSGroupConnector.class);
  38
  39         private Connection connection;
  40
  41         @Override
  42         public void init() {
  43                 try {
  44                         connection = new ActiveMQConnectionFactory("tcp://localhost:61616").createConnection();
  45                         connection.start();
  46                         Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
  47                         MessageConsumer consumer = session.createConsumer(session.createQueue("GroupConnector"));
  48                         consumer.setMessageListener(this);
  49                 } catch (JMSException e) {
  50                         log.error("EXCEPTION!", e);
  51                 }
  52         }
  53
  54         @Override
  55         public void onMessage(Message msg) {
  56                 try {
  57                         msg.acknowledge();
  58                         if (msg instanceof ObjectMessage) {
  59                                 ObjectMessage objMsg = (ObjectMessage) msg;
  60                                 Object obj = objMsg.getObject();
  61
  62                                 if (obj instanceof TableResponse) {
  63                                         TableResponse tablerresponse = (TableResponse) obj;
  64                                         log.debug("Received: " + tablerresponse);
  65                                         Group g = GroupAgent.getInstance().getGroupModel().getGroupByID(tablerresponse.getGroupdata().getId());
  66                                         g.assignTable(tablerresponse.getTable(), tablerresponse.getWaiterId());
  67                                         return;
  68                                 } else if (obj instanceof OrderResponse) {
  69                                         OrderResponse orderresponse = (OrderResponse) obj;
  70                                         log.debug("Received: " + orderresponse);
  71                                         Group g = GroupAgent.getInstance().getGroupModel().getGroupByID(orderresponse.getGroupdata().getId());
  72                                         g.orderReceived(orderresponse.getWaiterId());
  73                                         return;
  74                                 } else if (obj instanceof DeliverOrder) {
  75                                         DeliverOrder deliverorder = (DeliverOrder) obj;
  76                                         log.debug("Received: " + deliverorder);
  77                                         Group g = GroupAgent.getInstance().getGroupModel().getGroupByID(deliverorder.getGroupdata().getId());
  78                                         g.deliverPizzas(deliverorder.getGroupdata().getOrder(), deliverorder.getWaiterId());
  79                                         return;
  80                                 } else if (obj instanceof PayResponse) {
  81                                         PayResponse payresponse = (PayResponse) obj;
  82                                         log.debug("Received: " + payresponse);
  83                                         Group g = GroupAgent.getInstance().getGroupModel().getGroupByID(payresponse.getGroupdata().getId());
  84                                         g.payForPizzas(payresponse.getWaiterId());
  85                                         return;
  86                                 }
  87
  88                         }
  89
  90                         log.warn("Unknown messagetype received!");
  91                 } catch (JMSException e) {
  92                         log.error("EXCEPTION!", e);
  93                 }
  94         }
  95
  96         @Override
  97         public void send(AbstractAction request) {
  98                 try {
  99                         if (request instanceof TableRequest) {
 100                                 Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
 101                                 MessageProducer wantToSitAtTable = session.createProducer(session.createQueue("WantToSitAtTable"));
 102                                 wantToSitAtTable.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
 103                                 wantToSitAtTable.send(session.createObjectMessage(request));
 104                                 return;
 105
 106                         } else if (request instanceof OrderRequest) {
 107                                 Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
 108                                 MessageProducer wantToOrder = session.createProducer(session.createQueue("WantToOrder"));
 109                                 wantToOrder.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
 110                                 wantToOrder.send(session.createObjectMessage(request));
 111                                 return;
 112
 113                         } else if (request instanceof PayRequest) {
 114                                 Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
 115                                 MessageProducer wantToPay = session.createProducer(session.createQueue("WantToPay"));
 116                                 wantToPay.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
 117                                 wantToPay.send(session.createObjectMessage(request));
 118
 119                                 MessageProducer informPizzariaGui = session.createProducer(session.createQueue("PizzeriaConnector"));
 120                                 informPizzariaGui.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
 121                                 informPizzariaGui.send(session.createObjectMessage(request));
 122                                 session.close();
 123                                 return;
 124
 125                         } else if (request instanceof TableFree) {
 126                                 Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
 127                                 MessageProducer wantToSitAtTable = session.createProducer(session.createQueue("TablesFree"));
 128                                 wantToSitAtTable.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
 129                                 wantToSitAtTable.send(session.createObjectMessage(request.getGroupdata().getTable()));
 130
 131                                 request.getGroupdata().setTable(null);
 132
 133                                 MessageProducer wantToLeave = session.createProducer(session.createQueue("WantToLeave"));
 134                                 wantToLeave.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
 135                                 wantToLeave.send(session.createObjectMessage(request));
 136
 137                                 MessageProducer informPizzariaGui = session.createProducer(session.createQueue("PizzeriaConnector"));
 138                                 informPizzariaGui.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
 139                                 informPizzariaGui.send(session.createObjectMessage(request));
 140                                 session.close();
 141                                 return;
 142                         }
 143                 } catch (JMSException e) {
 144                         log.error("EXCEPTION!", e);
 145                 }
 146         }
 147
 148 }