1 | /************************************************************************************ |
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2 | * Copyright (C) 2008 by Politehnica University of Bucharest and Rutgers University |
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3 | * All rights reserved. |
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4 | * Refer to LICENSE for terms and conditions of use. |
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5 | ***********************************************************************************/ |
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6 | package vnsim.vehicular.routePlan.selfRouted; |
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7 | |
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8 | |
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9 | import java.util.Date; |
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10 | |
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11 | import vnsim.applications.trafficview.SimulatedCarInfo; |
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12 | import vnsim.applications.vitp.CarRunningVITP; |
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13 | import vnsim.applications.vitp.utils.VITPRequest; |
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14 | import vnsim.map.object.Globals; |
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15 | import vnsim.vehicular.simulator.CarInstance; |
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16 | import vnsim.vehicular.simulator.RouteSegment; |
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17 | |
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18 | |
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19 | |
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20 | |
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21 | public class QueryGeneration{ |
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22 | |
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23 | public static void generateQueryForCar(CarInstance car){ |
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24 | |
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25 | |
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26 | if ((car.routingType % 2 == 1) |
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27 | && (car.queryTime == Globals.engine.crtTime % 3000)) { |
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28 | //System.out.println("Car "+car.ID+"gen query"); |
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29 | |
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30 | SimulatedCarInfo myCar = Globals.engine.getCarIdx(car.ID); |
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31 | if (myCar != null) { |
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32 | RouteSegment nextHop = null; |
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33 | int ah,pt1,pt2; |
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34 | for (ah = 0; ah < Globals.routePlanConstants.HOW_FAR_AHEAD; ah++) { |
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35 | // |
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36 | nextHop = getNextSegmentFromRoute(car,(ah + 1)); |
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37 | |
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38 | if (nextHop != null) { |
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39 | pt1 = nextHop.pt1; |
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40 | pt2 = nextHop.pt2; |
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41 | if (pt1 < pt2) { |
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42 | if (pt2 - 4 > pt1) { |
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43 | pt1 = pt2 - 4; |
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44 | } |
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45 | } else { |
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46 | if (pt2 + 4 < pt1) { |
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47 | pt1 = pt2 + 4; |
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48 | } |
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49 | } |
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50 | |
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51 | VITPRequest req = new VITPRequest( |
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52 | (short) nextHop.roadIndex, |
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53 | (short) pt1, (short) pt2, |
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54 | (short) -1, (short) -1, (short) -1, |
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55 | new Date(), new Date(), "none", -1, |
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56 | "RI ", "GET", |
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57 | "/Route/Time?[cnt=3&tout=30000msec]"); |
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58 | try { |
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59 | ((CarRunningVITP) myCar).p |
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60 | .postMessageFromAbove(req); |
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61 | car.sentMsgCount++; |
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62 | } catch (Exception e) { |
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63 | e.printStackTrace(); |
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64 | } |
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65 | // |
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66 | } |
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67 | } |
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68 | } |
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69 | |
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70 | |
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71 | |
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72 | } |
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73 | |
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74 | |
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75 | } |
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76 | |
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77 | public static RouteSegment getNextSegmentFromRoute(CarInstance car, int far) { |
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78 | RouteSegment rez = null; |
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79 | if (car.routeIndex + far < car.route.length) { |
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80 | try { |
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81 | rez = car.route[car.routeIndex + far]; |
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82 | } catch (Exception e) { |
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83 | // no more streets |
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84 | |
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85 | } |
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86 | } |
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87 | return rez; |
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88 | } |
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89 | |
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90 | |
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91 | |
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92 | } |
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