source: proiecte/ptvs/src/vnsim/applications/vitp/utils/VITPMessage.java @ 31

/************************************************************************************
 * Copyright (C) 2008 by Politehnica University of Bucharest and Rutgers University
 * All rights reserved.
 * Refer to LICENSE for terms and conditions of use.
 ***********************************************************************************/
package vnsim.applications.vitp.utils;


import java.util.*;

import vnsim.vehicular.simulator.RouteSegment;


public abstract class VITPMessage implements java.io.Serializable {
        
        /** <code>serialVersionUID</code> */
        private static final long serialVersionUID = -5883719321862303634L;

        protected String versionNumber="1.0"; //protocol version

        public RouteSegment source; //message source
        public RouteSegment dest;   //message dest

        protected Date initialTime;  //initial issuing time of message
        protected Date expirationTime; //expiration time of message

        protected String cacheControl; //not used for now

        protected int msgId;  //unique message identifier
        
        protected static int VITP_IDINVAL=-1;
        
//      protected int contentLength; //length of body

        protected String msgBody; //actual message body

        protected static int VITP_NOTYPE=0;
        protected static int VITP_REQ=1;
        protected static int VITP_REP=2;

        protected int type=VITP_NOTYPE; //VITPRequest or VITPReply

        public boolean isRequest(){
                if(type==VITP_REQ)
                        return true;
                return false;
        }

        public boolean isReply(){
                if(type==VITP_REP)
                        return true;
                return false;
        }

        protected VITPMessage(  short roadIdDst, short fromDst, short toDst,
                                                        short roadIdSrc, short fromSrc, short toSrc,
                                                Date initialTime, Date expirationTime, 
                                                String cacheControl,
                                                int msgId, 
                                                String msgBody){

//              this.roadIdDest=roadIdDest;
//              this.segIdDest=segIdDest;
//              this.roadIdSrc=roadIdSrc;
//              this.segIdSrc=segIdSrc;


//              this.dest=new SegmentID(-1,segIdDest,lat1dest,long1dest,lat2dest,long2dest);
//              this.source=new SegmentID(-1,segIdSrc, lat1src, long1src, lat2src, long2src);

//              this.dest=new RouteSegment(road1IdxDst, pt1IdxDest, road2IdxDst, pt2IdxDest);
//              this.source=new RouteSegment(road1IdxSrc, pt1IdxSrc, road2IdxSrc, pt2IdxSrc);

                this.dest=new RouteSegment(roadIdDst, fromDst, toDst);
                this.source=new RouteSegment(roadIdSrc, fromSrc, toSrc);

                this.initialTime=initialTime;
                this.expirationTime=expirationTime;
                this.cacheControl=cacheControl;
                this.msgId=msgId;
                this.msgBody=msgBody;
        }

        public String toString(){
                String ret="";
//              ret=ret+"Src:[ ("+source.latP1+","+source.longP1+")--("+source.latP2+","+source.longP2+")] ";
//              ret=ret+"Dst:[ ("+dest.latP1+","+dest.longP1+")--("+dest.latP2+","+dest.longP2+")] ";

                ret=ret+"Src:["+source+"] ";
//              ret=ret+"Dst:[FROM SEG="+dest.rdIdx1+  "; P"+dest.ptIdx1+  " To SEG"+dest.rdIdx2+  " P"+dest.ptIdx2+  "] ";
                ret=ret+"Dst:["+dest+"] ";

                if(isRequest()) ret=ret+"REQ-";
                else if(isReply()) ret=ret+"REP-";
                else ret=ret+"NO_TYPE-";
                ret=ret+"Id:"+msgId;
                ret=ret+"Body:--"+msgBody+"--";
                return ret;
        }

        public void setMsgId(int id){
                msgId=id;
        }

        public int getId(){
                return msgId;
        }

        public void setMsgIdInval(){
                msgId=VITP_IDINVAL;
        }

        public boolean isIdInval(){
                if (msgId==VITP_IDINVAL)
                        return true;
                return false;
        }

        public RouteSegment getDest(){
                return dest;
        }

        public RouteSegment getSource(){
                return source;
        }

        public void addToBody(String s) {
                if(msgBody==null) msgBody="";
                if(!msgBody.endsWith("\n"))
                        msgBody=msgBody+"\n";
                msgBody=msgBody+s+"\n";
        }

        public String getBody(){
                return msgBody;
        }

        public VITPReply getReversedVITP(){
                //gets a VITPReply, by inverting source and destination of this message (copies body and id)

                VITPReply ret=new VITPReply(source.roadIndex,source.pt2, source.pt1, dest.roadIndex, dest.pt2, dest.pt1,
                                                new Date(), new Date(), "none", msgId, msgBody, 0, "OK");
                return ret;
        }

        public abstract String getUserFriendlyText();
}