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.applications.vitp; |
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7 | |
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8 | |
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9 | import java.io.ByteArrayInputStream; |
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10 | import java.io.ObjectInputStream; |
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11 | import java.io.Serializable; |
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12 | import java.nio.ByteBuffer; |
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13 | import java.util.TreeMap; |
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14 | import java.util.Vector; |
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15 | |
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16 | import vnsim.applications.trafficview.SimulatedCarInfo; |
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17 | import vnsim.applications.vitp.peer.Peer; |
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18 | import vnsim.applications.vitp.routing.RoutingModule; |
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19 | import vnsim.applications.vitp.routing.RoutingPacket; |
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20 | import vnsim.applications.vitp.services.MessageProcessServices; |
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21 | import vnsim.applications.vitp.ui.UserInterface; |
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22 | import vnsim.applications.vitp.utils.MessageIndexModule; |
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23 | import vnsim.core.Communicator; |
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24 | import vnsim.map.object.Globals; |
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25 | import vnsim.vehicular.routePlan.infrastructureRouted.InfrastructureReply; |
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26 | import vnsim.vehicular.simulator.Location; |
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27 | import vnsim.vehicular.simulator.RouteSegment; |
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28 | |
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29 | |
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30 | |
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31 | |
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32 | |
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33 | public class CarRunningVITP extends SimulatedCarInfo { |
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34 | |
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35 | public Peer p; |
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36 | |
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37 | public RoutingModule r; |
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38 | |
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39 | private MessageIndexModule mim; |
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40 | |
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41 | private UserInterface ui; |
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42 | |
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43 | private MessageProcessServices mps; |
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44 | |
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45 | public TreeMap<Integer, byte[]> messagesToSend = new TreeMap<Integer, byte[]>(); |
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46 | |
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47 | public TreeMap<Integer, RouteSegment> periodicalBroadcasts = new TreeMap<Integer, RouteSegment>(); |
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48 | |
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49 | public boolean isInformed = false; |
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50 | |
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51 | public Vector<Integer> sentTypes = new Vector<Integer>(); |
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52 | |
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53 | public CarRunningVITP(int vehicleId, byte lane, double speed, |
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54 | short roadIdx, short pointIdx, byte direction, double offset) |
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55 | { |
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56 | super(vehicleId, lane, speed, roadIdx, pointIdx, direction, offset); |
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57 | p = new Peer(); |
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58 | r = new RoutingModule(); |
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59 | mim = new MessageIndexModule(); |
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60 | ui = new UserInterface(); |
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61 | mps = new MessageProcessServices(this); |
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62 | |
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63 | r.attachModules(this, mim, p); |
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64 | p.attachModules(r, mps, ui); |
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65 | ui.attachModules(p); |
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66 | |
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67 | } |
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68 | |
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69 | public void broadcastRoadPacket(String toSend) |
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70 | { |
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71 | // System.out.println("car Vitp sending"+toSend); |
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72 | int t = scheduleSingleSendEvent(Globals.MESSAGE_PROCESSING_TIME, null); |
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73 | |
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74 | try { |
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75 | this.messagesToSend.put(t, toSend.getBytes()); |
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76 | this.sentTypes.add(new Integer(t)); |
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77 | } catch (Exception ex) { |
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78 | System.out.println("EXCEPTION CarRunningVITP Broadcast packet:" |
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79 | + ex.toString()); |
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80 | ex.printStackTrace(); |
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81 | } |
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82 | |
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83 | } |
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84 | |
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85 | public void onReceive(byte[] bytesReceived, Serializable m, Communicator sender) { |
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86 | if (!isEquipped || bytesReceived == null) |
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87 | return; |
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88 | // is it a VITP packet? |
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89 | byte header = bytesReceived[0]; |
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90 | byte[] message = null; |
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91 | switch (header) { |
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92 | // case Globals.PROT_NEIGHBOR_DISCOVERY: |
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93 | // // ByteBuffer bb = ByteBuffer.wrap(bytesReceived, 1, |
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94 | // // bytesReceived.length-1); |
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95 | // SimulatedCarInfo sc = new SimulatedCarInfo(); |
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96 | // byte[] message = new byte[bytesReceived.length - 1]; |
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97 | // for (int i = 0; i < message.length; i++) { |
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98 | // message[i] = bytesReceived[i + 1]; |
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99 | // } |
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100 | // sc.wrap(message); |
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101 | // boolean added = false; |
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102 | // for (int i = 0; i < neighbors.size(); i++) |
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103 | // if ((neighbors.get(i)).getVehicleId() == sc.getVehicleId()) { |
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104 | // synchronized (neighbors) { |
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105 | // neighbors.set(i, sc); |
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106 | // // System.out.println("Insert "+dc.getVehicleId() +" at |
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107 | // // "+i); |
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108 | // added = true; |
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109 | // } |
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110 | // break; |
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111 | // } |
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112 | // if (!added) |
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113 | // synchronized (neighbors) { |
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114 | // neighbors.add(sc); |
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115 | // // System.out.println("Insert "+dc.getVehicleId() +" at |
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116 | // // "+(Globals.neighbors.size()-1)); |
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117 | // } |
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118 | // break; |
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119 | case Globals.VITP_PROT: |
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120 | // System.out.println("I AM :"+vehicleId+"; RECEIVED VITP!"); |
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121 | message = new byte[bytesReceived.length - 1]; |
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122 | for (int i = 0; i < message.length; i++) { |
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123 | message[i] = bytesReceived[i + 1]; |
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124 | } |
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125 | try { |
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126 | ObjectInputStream ois = new ObjectInputStream( |
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127 | new ByteArrayInputStream(message)); |
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128 | RoutingPacket rp = (RoutingPacket) ois.readObject(); |
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129 | |
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130 | r.postMessageFromBelow(rp); |
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131 | |
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132 | } catch (Exception ex) { |
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133 | System.out.println("EXCEPTION CarRunningVITP:" + ex.toString()); |
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134 | ex.printStackTrace(); |
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135 | return; |
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136 | } |
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137 | break; |
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138 | case Globals.ROAD_PLANNING_PROT: |
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139 | message = new byte[bytesReceived.length - 1]; |
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140 | for (int i = 0; i < message.length; i++) { |
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141 | message[i] = bytesReceived[i + 1]; |
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142 | } |
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143 | (new InfrastructureReply(new String(message),this.getRealPos())).analizeMessage(); |
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144 | |
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145 | // System.out.println("Received a packet back"); |
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146 | break; |
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147 | default: |
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148 | super.onReceive(bytesReceived, m, sender); |
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149 | break; |
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150 | } |
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151 | } |
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152 | |
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153 | public byte[] prepareMessage(int messageType) { |
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154 | |
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155 | if (!isEquipped) |
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156 | return null; |
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157 | ByteBuffer bb = ByteBuffer.allocate(28); |
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158 | if (messageType == STANDARD_MESSAGE_ID){ |
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159 | return super.prepareMessage(messageType); |
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160 | |
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161 | // bb.put((byte) Globals.PROT_NEIGHBOR_DISCOVERY); |
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162 | // bb.put(toBytes()); |
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163 | // return bb.array(); |
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164 | }else{ // VITP |
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165 | byte[] b = messagesToSend.get(messageType); |
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166 | if (b == null) { |
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167 | // System.out.println("NULL |
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168 | // TIME="+Globals.engine.crtTime+"ID="+getVehicleId()); |
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169 | return null; |
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170 | } |
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171 | bb = ByteBuffer.allocate(b.length + 1); |
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172 | if (this.sentTypes.contains(new Integer(messageType))) { |
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173 | if (b.length>1 && b[0]=='R' && b[1]=='M') { |
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174 | bb.put(Globals.ROAD_METRICS_PROT); |
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175 | } else { |
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176 | bb.put(Globals.ROAD_PLANNING_PROT); |
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177 | } |
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178 | this.sentTypes.remove(new Integer(messageType)); |
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179 | messagesToSend.remove(messageType); |
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180 | bb.put(b); |
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181 | //System.out.println("Sending a query to/from infrastruct! "); |
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182 | //if (this instanceof InfrastructureNode) { |
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183 | // System.out.println("Sunt semafor!"); |
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184 | //} |
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185 | return bb.array(); |
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186 | } else { |
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187 | bb.put(Globals.VITP_PROT); |
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188 | bb.put(b); |
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189 | } |
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190 | |
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191 | // remove it if it's not a periodical broadcast, |
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192 | // or it is a periodical broadcast, but the node is not |
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193 | // within the destination region anymore |
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194 | if (!periodicalBroadcasts.containsKey(messageType)) { |
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195 | messagesToSend.remove(messageType); |
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196 | } |
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197 | if (periodicalBroadcasts.containsKey(messageType)) { |
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198 | RouteSegment r = periodicalBroadcasts.get(messageType); |
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199 | Location myLoc = new Location(getRoadIdx(), getPointIdx()); |
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200 | if (!r.contains(myLoc)) { |
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201 | messagesToSend.remove(messageType); |
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202 | return null; |
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203 | // System.out.println("ID="+getVehicleId()+"; DISCARDING |
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204 | // BROADCAST!"); |
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205 | } else { |
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206 | Statistics.addBroadcast(10); |
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207 | } |
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208 | } |
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209 | return bb.array(); |
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210 | } |
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211 | } |
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212 | } |
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