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