[31] | 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.utils; |
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| 7 | |
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| 8 | |
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| 9 | import java.util.*; |
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| 10 | |
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| 11 | import vnsim.vehicular.simulator.RouteSegment; |
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| 12 | |
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| 13 | |
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| 14 | public abstract class VITPMessage implements java.io.Serializable { |
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| 15 | |
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| 16 | /** <code>serialVersionUID</code> */ |
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| 17 | private static final long serialVersionUID = -5883719321862303634L; |
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| 18 | |
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| 19 | protected String versionNumber="1.0"; //protocol version |
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| 20 | |
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| 21 | public RouteSegment source; //message source |
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| 22 | public RouteSegment dest; //message dest |
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| 23 | |
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| 24 | protected Date initialTime; //initial issuing time of message |
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| 25 | protected Date expirationTime; //expiration time of message |
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| 26 | |
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| 27 | protected String cacheControl; //not used for now |
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| 28 | |
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| 29 | protected int msgId; //unique message identifier |
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| 30 | |
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| 31 | protected static int VITP_IDINVAL=-1; |
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| 32 | |
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| 33 | // protected int contentLength; //length of body |
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| 34 | |
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| 35 | protected String msgBody; //actual message body |
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| 36 | |
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| 37 | protected static int VITP_NOTYPE=0; |
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| 38 | protected static int VITP_REQ=1; |
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| 39 | protected static int VITP_REP=2; |
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| 40 | |
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| 41 | protected int type=VITP_NOTYPE; //VITPRequest or VITPReply |
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| 42 | |
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| 43 | public boolean isRequest(){ |
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| 44 | if(type==VITP_REQ) |
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| 45 | return true; |
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| 46 | return false; |
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| 47 | } |
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| 48 | |
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| 49 | public boolean isReply(){ |
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| 50 | if(type==VITP_REP) |
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| 51 | return true; |
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| 52 | return false; |
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| 53 | } |
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| 54 | |
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| 55 | protected VITPMessage( short roadIdDst, short fromDst, short toDst, |
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| 56 | short roadIdSrc, short fromSrc, short toSrc, |
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| 57 | Date initialTime, Date expirationTime, |
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| 58 | String cacheControl, |
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| 59 | int msgId, |
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| 60 | String msgBody){ |
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| 61 | |
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| 62 | // this.roadIdDest=roadIdDest; |
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| 63 | // this.segIdDest=segIdDest; |
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| 64 | // this.roadIdSrc=roadIdSrc; |
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| 65 | // this.segIdSrc=segIdSrc; |
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| 66 | |
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| 67 | |
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| 68 | // this.dest=new SegmentID(-1,segIdDest,lat1dest,long1dest,lat2dest,long2dest); |
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| 69 | // this.source=new SegmentID(-1,segIdSrc, lat1src, long1src, lat2src, long2src); |
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| 70 | |
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| 71 | // this.dest=new RouteSegment(road1IdxDst, pt1IdxDest, road2IdxDst, pt2IdxDest); |
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| 72 | // this.source=new RouteSegment(road1IdxSrc, pt1IdxSrc, road2IdxSrc, pt2IdxSrc); |
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| 73 | |
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| 74 | this.dest=new RouteSegment(roadIdDst, fromDst, toDst); |
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| 75 | this.source=new RouteSegment(roadIdSrc, fromSrc, toSrc); |
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| 76 | |
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| 77 | this.initialTime=initialTime; |
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| 78 | this.expirationTime=expirationTime; |
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| 79 | this.cacheControl=cacheControl; |
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| 80 | this.msgId=msgId; |
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| 81 | this.msgBody=msgBody; |
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| 82 | } |
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| 83 | |
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| 84 | public String toString(){ |
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| 85 | String ret=""; |
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| 86 | // ret=ret+"Src:[ ("+source.latP1+","+source.longP1+")--("+source.latP2+","+source.longP2+")] "; |
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| 87 | // ret=ret+"Dst:[ ("+dest.latP1+","+dest.longP1+")--("+dest.latP2+","+dest.longP2+")] "; |
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| 88 | |
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| 89 | ret=ret+"Src:["+source+"] "; |
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| 90 | // ret=ret+"Dst:[FROM SEG="+dest.rdIdx1+ "; P"+dest.ptIdx1+ " To SEG"+dest.rdIdx2+ " P"+dest.ptIdx2+ "] "; |
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| 91 | ret=ret+"Dst:["+dest+"] "; |
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| 92 | |
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| 93 | if(isRequest()) ret=ret+"REQ-"; |
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| 94 | else if(isReply()) ret=ret+"REP-"; |
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| 95 | else ret=ret+"NO_TYPE-"; |
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| 96 | ret=ret+"Id:"+msgId; |
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| 97 | ret=ret+"Body:--"+msgBody+"--"; |
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| 98 | return ret; |
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| 99 | } |
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| 100 | |
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| 101 | public void setMsgId(int id){ |
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| 102 | msgId=id; |
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| 103 | } |
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| 104 | |
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| 105 | public int getId(){ |
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| 106 | return msgId; |
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| 107 | } |
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| 108 | |
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| 109 | public void setMsgIdInval(){ |
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| 110 | msgId=VITP_IDINVAL; |
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| 111 | } |
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| 112 | |
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| 113 | public boolean isIdInval(){ |
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| 114 | if (msgId==VITP_IDINVAL) |
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| 115 | return true; |
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| 116 | return false; |
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| 117 | } |
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| 118 | |
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| 119 | public RouteSegment getDest(){ |
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| 120 | return dest; |
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| 121 | } |
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| 122 | |
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| 123 | public RouteSegment getSource(){ |
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| 124 | return source; |
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| 125 | } |
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| 126 | |
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| 127 | public void addToBody(String s) { |
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| 128 | if(msgBody==null) msgBody=""; |
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| 129 | if(!msgBody.endsWith("\n")) |
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| 130 | msgBody=msgBody+"\n"; |
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| 131 | msgBody=msgBody+s+"\n"; |
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| 132 | } |
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| 133 | |
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| 134 | public String getBody(){ |
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| 135 | return msgBody; |
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| 136 | } |
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| 137 | |
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| 138 | public VITPReply getReversedVITP(){ |
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| 139 | //gets a VITPReply, by inverting source and destination of this message (copies body and id) |
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| 140 | |
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| 141 | VITPReply ret=new VITPReply(source.roadIndex,source.pt2, source.pt1, dest.roadIndex, dest.pt2, dest.pt1, |
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| 142 | new Date(), new Date(), "none", msgId, msgBody, 0, "OK"); |
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| 143 | return ret; |
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| 144 | } |
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| 145 | |
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| 146 | public abstract String getUserFriendlyText(); |
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| 147 | } |
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