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.routing; |
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7 | |
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8 | |
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9 | import java.util.*; |
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10 | import java.io.*; |
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11 | |
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12 | import vnsim.applications.vitp.utils.*; |
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13 | import vnsim.vehicular.simulator.RouteSegment; |
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14 | |
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15 | |
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16 | public class RoutingPacket implements java.io.Serializable { |
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17 | |
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18 | /** <code>serialVersionUID</code> */ |
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19 | private static final long serialVersionUID = -5883719321862303634L; |
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20 | |
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21 | public boolean toBroadcast=false; |
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22 | |
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23 | //the center of the broadcast region (only valid |
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24 | //if toBroadcast=true) |
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25 | public int roadIndex; |
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26 | public int pointIndex; |
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27 | public double radius; |
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28 | |
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29 | public VITPMessage msg; |
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30 | private ArrayList<RouteSegment> route; //the pre-calculated trajectory on which the |
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31 | //packet should travel to the destination |
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32 | //an ordered collection of RouteSegment |
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33 | private int indexCurrent; //the index of the current segment id; |
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34 | |
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35 | public RouteSegment getCurrentSegment(){ |
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36 | try{ |
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37 | return ((RouteSegment)(route.get(indexCurrent))); |
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38 | } catch (Exception ex) { |
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39 | // System.out.println("RoutingPacket.getCurrent - exception!"); |
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40 | return null; |
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41 | } |
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42 | } |
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43 | |
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44 | public RouteSegment getNextSegment(){ |
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45 | try{ |
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46 | return ((RouteSegment)(route.get(indexCurrent+1))); |
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47 | } catch (Exception ex) { |
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48 | // System.out.println("RoutingPacket.getNextSegment - exception!"); |
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49 | return null; |
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50 | } |
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51 | } |
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52 | |
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53 | public RouteSegment getAfterNextSegment() { |
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54 | try{ |
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55 | return ((RouteSegment)(route.get(indexCurrent+2))); |
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56 | } catch(Exception ex) { |
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57 | // System.out.println("RoutingPacket.getNextSegment - exception!"); |
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58 | return null; |
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59 | } |
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60 | } |
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61 | |
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62 | public void incrementIndex(){ |
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63 | indexCurrent++; |
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64 | } |
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65 | |
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66 | public RoutingPacket(VITPMessage msg, ArrayList<RouteSegment> route) { |
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67 | |
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68 | // if(route==null) { |
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69 | // System.out.println("ERROR! Route should not be null!"); |
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70 | // } |
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71 | this.msg=msg; |
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72 | this.route=route; |
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73 | this.indexCurrent=0; |
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74 | } |
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75 | |
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76 | public String toString(){ |
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77 | String ret="Broad="+toBroadcast; |
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78 | ret=ret+msg+route; |
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79 | return ret; |
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80 | } |
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81 | |
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82 | public byte[] getSerializedBytes() { |
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83 | //returns the serialization of this object |
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84 | try{ |
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85 | ByteArrayOutputStream byteStream=new ByteArrayOutputStream(); |
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86 | ObjectOutputStream os=new ObjectOutputStream(new BufferedOutputStream(byteStream)); |
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87 | os.flush(); |
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88 | os.writeObject(this); |
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89 | os.close(); |
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90 | return byteStream.toByteArray(); |
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91 | } catch(Exception ex) { |
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92 | System.out.println("RoutingPacket - getSerializedBytes() - exception!:"+ex.toString()); |
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93 | return null; |
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94 | } |
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95 | } |
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96 | |
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97 | public static RoutingPacket getObjectFromSerializedBytes(byte[] bytes) { |
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98 | try{ |
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99 | ByteArrayInputStream byteStream=new ByteArrayInputStream(bytes); |
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100 | ObjectInputStream is=new ObjectInputStream(new BufferedInputStream(byteStream)); |
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101 | Object o=is.readObject(); |
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102 | is.close(); |
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103 | return (RoutingPacket)o; |
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104 | } catch (Exception ex) { |
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105 | System.out.println("RoutingPacket - getObjectFromSerializedBytes() - exception!:"+ex.toString()); |
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106 | return null; |
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107 | } |
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108 | } |
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109 | } |
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