de::psi::telco::sumoplayer::SUMOSAXHandler Class Reference

Inherits org::xml::sax::helpers::DefaultHandler.

Detailed Description

This SAX Handler parses SUMO "--network-dump" output files. It guesses which vehicles are tracked by a given propability.

Author:: will

Definition at line 21 of file SUMOSAXHandler.java.


Public Member Functions
double	getCar4carEquippedPropbaility ()
void	setCar4carEquippedPropability (double car4carEquippedPropbaility)
void	setJitter (int jitter)
void	setListener (SUMOLocationListener listener)
void	setResolver (SUMOGeoCoordinatesResolver resolver)
void	startDocument ()
void	startElement (String uri, String localName, String qName, Attributes attributes) throws SAXException
	SUMOSAXHandler (String netfilename)
Private Member Functions
void	handleVehicle ()
Private Attributes
double	car4carEquippedPropbaility = 0.01
String	edgeId
int	jitter = 0
Set< String >	knownVehicles = new HashSet<String>()
String	laneId
SUMOLocationListener	listener
double	pos
SUMOGeoCoordinatesResolver	resolver
double	speed
long	startTime
int	timestep
Set< String >	trackedVehicles = new HashSet<String>()
String	vehicleId

Constructor & Destructor Documentation

de::psi::telco::sumoplayer::SUMOSAXHandler::SUMOSAXHandler ( String netfilename ) [inline]

Definition at line 46 of file SUMOSAXHandler.java.

References resolver.

00046                                              {
00047         this.resolver = new SUMOGeoCoordinatesResolver(netfilename);
00048     }

Member Function Documentation

double de::psi::telco::sumoplayer::SUMOSAXHandler::getCar4carEquippedPropbaility ( ) [inline]

Definition at line 111 of file SUMOSAXHandler.java.

References car4carEquippedPropbaility.

00111                                                   {
00112         return car4carEquippedPropbaility;
00113     }

void de::psi::telco::sumoplayer::SUMOSAXHandler::handleVehicle ( ) [inline, private]

Definition at line 81 of file SUMOSAXHandler.java.

References car4carEquippedPropbaility, edgeId, de::psi::telco::sumoplayer::util::Point::getX(), de::psi::telco::sumoplayer::util::Point::getY(), jitter, knownVehicles, laneId, listener, de::psi::telco::sumoplayer::SUMOLocationListener::LocationUpdated(), pos, de::psi::telco::sumoplayer::SUMOGeoCoordinatesResolver::resolv(), resolver, speed, timestep, trackedVehicles, and vehicleId.

Referenced by startElement().

00081                                 {
00082         if (trackedVehicles.size() == 0){   // add first vehicle anyway for simulations whith only one vehicle
00083             knownVehicles.add(vehicleId);
00084             trackedVehicles.add(vehicleId);
00085         }else{  // add vehicles probabilistic
00086             if (!knownVehicles.contains(vehicleId)){    // check if vehicle is already known
00087                 
00088                 knownVehicles.add(vehicleId);   // then add it as known
00089                 if (car4carEquippedPropbaility > Math.random()){    // and calculate propability
00090                     trackedVehicles.add(vehicleId);                 // ... to add it
00091                 }
00092             }
00093         }
00094         
00095         if (trackedVehicles.contains(vehicleId)){   // handle a tracked vehicle only
00096             // calculate geo position
00097             Point p = resolver.resolv(edgeId, laneId, pos);
00098             
00099             // calculate jitter if required
00100             if (jitter > 0){
00101                 double jitterLon = GeoCalc.getLonOffset(p.getX(), p.getY(), jitter)*((Math.random()*2)-1);
00102                 double jitterLat = GeoCalc.getLatOffset(p.getX(), p.getY(), jitter)*((Math.random()*2)-1);
00103                 p = new PointImpl(p.getX()+jitterLon,p.getY()+jitterLat);
00104             }
00105             
00106             // call the listener
00107             this.listener.LocationUpdated(vehicleId, timestep, p.getX(), p.getY(), speed*3.6);
00108         }
00109     }

void de::psi::telco::sumoplayer::SUMOSAXHandler::setCar4carEquippedPropability ( double car4carEquippedPropbaility ) [inline]

Definition at line 115 of file SUMOSAXHandler.java.

Referenced by de::psi::telco::sumoplayer::SUMOPlayer::init().

00115                                                                                  {
00116         this.car4carEquippedPropbaility = car4carEquippedPropbaility;
00117     }

void de::psi::telco::sumoplayer::SUMOSAXHandler::setJitter ( int jitter ) [inline]

This function sets the GPS jitter in meters

Parameters:

jitter

Definition at line 131 of file SUMOSAXHandler.java.

Referenced by de::psi::telco::sumoplayer::SUMOPlayer::init().

00131                                      {
00132         this.jitter = jitter;
00133     }

void de::psi::telco::sumoplayer::SUMOSAXHandler::setListener ( SUMOLocationListener listener ) [inline]

Definition at line 119 of file SUMOSAXHandler.java.

Referenced by de::psi::telco::sumoplayer::SUMOPlayer::init().

00119                                                            {
00120         this.listener = listener;
00121     }

void de::psi::telco::sumoplayer::SUMOSAXHandler::setResolver ( SUMOGeoCoordinatesResolver resolver ) [inline]

Definition at line 123 of file SUMOSAXHandler.java.

00123                                                                  {
00124         this.resolver = resolver;
00125     }

void de::psi::telco::sumoplayer::SUMOSAXHandler::startDocument ( ) [inline]

Definition at line 50 of file SUMOSAXHandler.java.

References startTime.

00050                                {
00051         startTime = System.currentTimeMillis();
00052     }

void de::psi::telco::sumoplayer::SUMOSAXHandler::startElement	(	String	uri,
		String	localName,
		String	qName,
		Attributes	attributes
	)			throws SAXException `[inline]`

Definition at line 54 of file SUMOSAXHandler.java.

References edgeId, handleVehicle(), laneId, pos, speed, startTime, timestep, and vehicleId.

00054                                                                                                                     {
00055         if (qName.equals("timestep")){
00056             timestep = Integer.parseInt(attributes.getValue("time"));
00057             
00058             long timeToBe = startTime + timestep*1000;  // dirty realtime trick
00059             long now = System.currentTimeMillis();
00060             try {
00061                 if (timeToBe-now>0){
00062                     Thread.sleep(timeToBe-now);
00063                 }
00064             } catch (InterruptedException e) {
00065                 // TODO Auto-generated catch block
00066                 e.printStackTrace();
00067             }
00068         }else if(qName.equals("edge")){
00069             edgeId = attributes.getValue("id"); 
00070         }else if(qName.equals("lane")){
00071             laneId = attributes.getValue("id");
00072         }else if(qName.equals("vehicle")){
00073             vehicleId = attributes.getValue("id");
00074             pos = Double.parseDouble(attributes.getValue("pos"));
00075             speed = Double.parseDouble(attributes.getValue("speed"));
00076             
00077             handleVehicle();
00078         }
00079     }