src/main/java/at/ac/tuwien/sbc/valesriegler/xvsm/DriverXVSM.java

   1 package at.ac.tuwien.sbc.valesriegler.xvsm;
   2
   3
   4 import at.ac.tuwien.sbc.valesriegler.common.Bill;
   5 import at.ac.tuwien.sbc.valesriegler.common.Util;
   6 import at.ac.tuwien.sbc.valesriegler.types.DeliveryGroupData;
   7 import at.ac.tuwien.sbc.valesriegler.types.DeliveryStatus;
   8 import at.ac.tuwien.sbc.valesriegler.types.Order;
   9 import at.ac.tuwien.sbc.valesriegler.types.Pizza;
  10 import at.ac.tuwien.sbc.valesriegler.xvsm.spacehelpers.SpaceAction;
  11 import org.mozartspaces.core.ContainerReference;
  12 import org.mozartspaces.core.MzsConstants;
  13 import org.mozartspaces.core.MzsCoreException;
  14 import org.mozartspaces.core.TransactionReference;
  15 import org.slf4j.Logger;
  16 import org.slf4j.LoggerFactory;
  17
  18 import java.io.Serializable;
  19 import java.net.URI;
  20 import java.util.Arrays;
  21 import java.util.List;
  22
  23 public class DriverXVSM extends AbstractXVSMConnector {
  24     private static final Logger log = LoggerFactory.getLogger(DriverXVSM.class);
  25
  26     private int driverId;
  27
  28     public DriverXVSM(int id, int port) {
  29         super(port);
  30
  31         this.driverId = id;
  32
  33         preparedDeliveryPizzasContainer = useContainer(Util.DELIVER_DELIVERY_PIZZAS);
  34         deliveryOrderTakenContainer = useContainer(Util.DELIVERY_ORDER_TAKEN);
  35         deliverDeliveryOrderContainer = useContainer(Util.DELIVER_DELIVERY_ORDER);
  36         pizzeriaDeliveryContainer = useContainer(Util.PIZZERIA_DELIVERY);
  37
  38     }
  39
  40
  41     public void listenForPreparedDeliveryOrders() {
  42         getDefaultBuilder("listenForPreparedDeliveryOrders").setCref(deliverDeliveryOrderContainer).setLookaround(true).setSpaceAction(new SpaceAction() {
  43
  44             @Override
  45             public void onEntriesWritten(List<? extends Serializable> entries) throws Exception {
  46                 handleDeliveries(entries);
  47
  48             }
  49         }).createSpaceListenerImpl();
  50     }
  51
  52     private void handleDeliveries(List<? extends Serializable> entries) throws MzsCoreException {
  53         final List<DeliveryGroupData> deliveries = castEntries(entries);
  54
  55         for (DeliveryGroupData delivery : deliveries) {
  56             DeliveryGroupData template = new DeliveryGroupData(delivery.getId());
  57             template.setDeliveryStatus(DeliveryStatus.ORDERED);
  58
  59             final TransactionReference tx = capi.createTransaction(
  60                     7000,
  61                     URI.create(String.format(Util.SERVER_ADDR, port)));
  62             final String error = "Another driver wants to deliver this order!";
  63
  64             try {
  65                 // Get lock for delivering this delivery order
  66                 takeMatchingEntity(template, deliverDeliveryOrderContainer, tx, MzsConstants.RequestTimeout.ZERO, error);
  67                 final DeliveryGroupData group = takeMatchingEntity(template, pizzeriaDeliveryContainer, tx, 2000, "Cannot get the delivery order!");
  68                 group.setDriverId(driverId);
  69                 group.setDeliveryStatus(DeliveryStatus.IN_PROGRESS);
  70
  71                 final List<DeliveryGroupData> groups = Arrays.asList(group);
  72                         sendItemsToContainer(groups,
  73                                 pizzeriaDeliveryContainer, MzsConstants.RequestTimeout.ZERO, null);
  74
  75                 if (!Util.runSimulation) {
  76                     Thread.sleep(3000);
  77                 }
  78
  79                 final String address = String.format(Util.SERVER_ADDR, Util.DELIVERY_CUSTOMERS_PORT);
  80                 ContainerReference cref = null;
  81                 boolean success = false;
  82                 try {
  83                     cref = capi.lookupContainer(group.getAddress(), URI.create(address), MzsConstants.RequestTimeout.ZERO, null);
  84                     log.debug("Looked up container {} successfully!", address);
  85                     success = true;
  86
  87                 } catch (Exception ex) {
  88                     log.info("Could not find container {}", address);
  89                 }
  90                 if (success) {
  91                     group.setDeliveryStatus(DeliveryStatus.DELIVERED);
  92                     if (!Util.runSimulation) {
  93                         sendItemsToContainer(Arrays.asList(new Bill(1000, group.getId())), cref, MzsConstants.RequestTimeout.ZERO, null);
  94                     }
  95                 } else {
  96                     group.setDeliveryStatus(DeliveryStatus.DELIVERY_FAILED);
  97                 }
  98                 sendItemsToContainer(groups, pizzeriaDeliveryContainer, MzsConstants.RequestTimeout.ZERO, tx);
  99                 capi.commitTransaction(tx);
 100
 101
 102             } catch (Exception e) {
 103                 log.info("DRiverXVSM exception");
 104                 log.info(e.getMessage());
 105                 e.printStackTrace();
 106             }
 107         }
 108     }
 109
 110     public void listenForPreparedDeliveryPizzas() {
 111         getDefaultBuilder("listenForPreparedDeliveryPizzas").setCref(preparedDeliveryPizzasContainer).setLookaround(true).setSpaceAction(new SpaceAction() {
 112
 113             @Override
 114             public void onEntriesWritten(List<? extends Serializable> entries)
 115                     throws Exception {
 116
 117                 List<Pizza> pizzas = castEntries(entries);
 118
 119                 for (Pizza pizza : pizzas) {
 120                     int orderId = pizza.getOrderId();
 121                     Order order = new Order();
 122                     order.setId(orderId);
 123
 124                     TransactionReference tx = getDefaultTransaction();
 125
 126                     try {
 127                         DeliveryGroupData entity = new DeliveryGroupData();
 128                         entity.setDeliveryStatus(null);
 129                         entity.setOrder(order);
 130
 131                         final DeliveryGroupData groupData = takeMatchingEntity(entity,
 132                                 deliveryOrderTakenContainer, tx, MzsConstants.RequestTimeout.DEFAULT,
 133                                 "Another driver just checks if the delivery order is complete");
 134                         int numberOfPizzas = groupData.getOrder().getNumberOfPizzas();
 135
 136                         Pizza pizzaTemplate = new Pizza();
 137                         pizzaTemplate.setOrderId(orderId);
 138
 139                         List<Pizza> pizzasOfOrder = takeMatchingEntities(
 140                                 pizzaTemplate, preparedDeliveryPizzasContainer, tx,
 141                                 MzsConstants.RequestTimeout.DEFAULT,
 142                                 "Cannot take the pizzas from the preparedDeliveryPizzasContainer");
 143
 144                         if (pizzasOfOrder.size() == numberOfPizzas) {
 145                             final List<DeliveryGroupData> groupsWithCompleteOrder = Arrays.asList(groupData);
 146                             sendItemsToContainer(groupsWithCompleteOrder,
 147                                     deliverDeliveryOrderContainer, MzsConstants.RequestTimeout.DEFAULT,
 148                                     tx);
 149
 150                             capi.commitTransaction(tx);
 151                         } else {
 152                             log.info("Not yet all pizzas prepared! Order with id "
 153                                     + orderId + " has " + numberOfPizzas
 154                                     + " pizzas, but only " + pizzasOfOrder.size()
 155                                     + " pizzas are ready by now!");
 156                             capi.rollbackTransaction(tx);
 157                         }
 158                     } catch (NullPointerException e) {
 159
 160                     } catch (Exception e) {
 161                         capi.rollbackTransaction(tx);
 162                     }
 163                 }
 164             }
 165         }).createSpaceListenerImpl();
 166     }
 167 }