de::psi::telco::sumoplayer::SUMOSAXNeworkfileHandler Class Reference

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

Detailed Description

This SAX parser can be used to read SUMO networkfiles. It builds a SUMONetwork object containing the networks topology

Author:: will

Definition at line 15 of file SUMOSAXNeworkfileHandler.java.


Public Member Functions
void	characters (char ch[], int start, int length)
void	endElement (String uri, String localName, String qName) throws SAXException
void	startElement (String uri, String localName, String qName, Attributes attributes) throws SAXException
Data Fields
SUMONetwork	network = new SUMONetwork()
Private Attributes
String	cEdgeId
int	currentElementType
String	junctionId
String	sumoEdgeId
String	sumoLaneId
Static Private Attributes
static int	CEDGE = 3
static int	EDGE = 1
static int	JUNCTION = 4
static int	LANE = 2
static int	OFFSET = 5
static int	PROJ = 6
static int	UNKNOWN = 0

Member Function Documentation

void de::psi::telco::sumoplayer::SUMOSAXNeworkfileHandler::characters	(	char	ch[],
		int	start,
		int	length
	)			`[inline]`

Definition at line 77 of file SUMOSAXNeworkfileHandler.java.

References currentElementType, LANE, de::psi::telco::sumoplayer::SUMONetwork::lanes, network, de::psi::telco::sumoplayer::SUMONetwork::offset, OFFSET, PROJ, de::psi::telco::sumoplayer::SUMONetwork::projString, and sumoLaneId.

00077                                                              {
00078         
00079         if (currentElementType == LANE){    // read coords from lane
00080             
00081             char[] chars = new char[length];    // copy stuff from sax buffer
00082             for (int i = 0; i<length; i++){
00083                 chars[i] = ch[start+i];
00084             }
00085             String data = new String(chars);
00086             
00087             String[] coordPairs = data.split(" ");  // split by pairs (  COORD1X,COORD1Y COORD2X,COORD2Y ...)
00088             for (int i = 0 ; i < coordPairs.length; i++){
00089                 String[] coordElements = coordPairs[i].split(",");
00090                 if (coordElements != null && coordElements.length == 2){    // split by comma ( COORD1X,COORD1Y )
00091                     try{
00092                         double x = Double.parseDouble(coordElements[0]);
00093                         double y = Double.parseDouble(coordElements[1]);
00094                         
00095                         network.lanes.get(sumoLaneId).points.add(new PointImpl(x,y));
00096                     }catch(NumberFormatException e){
00097                     }
00098                 }               
00099             }
00100 
00101         }else if (currentElementType == OFFSET){    // read offset. i.e:  <net-offset>-755969.000000,-5660071.000000</net-offset>
00102             char[] chars = new char[length];    // copy stuff from sax buffer
00103             for (int i = 0; i<length; i++){
00104                 chars[i] = ch[start+i];
00105             }
00106             String data = new String(chars);
00107             String[] vectorElements = data.split(",");
00108             if (vectorElements.length==2){
00109                 network.offset = new PointImpl(Double.parseDouble(vectorElements[0]),Double.parseDouble(vectorElements[1]));
00110             }
00111         }else if (currentElementType == PROJ){  // read projection string. i.e:  <orig-proj>+proj=utm +ellps=bessel +units=m</orig-proj>
00112             char[] chars = new char[length];    // copy stuff from sax buffer
00113             for (int i = 0; i<length; i++){
00114                 chars[i] = ch[start+i];
00115             }
00116             network.projString = new String(chars); 
00117         }
00118     }

void de::psi::telco::sumoplayer::SUMOSAXNeworkfileHandler::endElement	(	String	uri,
		String	localName,
		String	qName
	)			throws SAXException `[inline]`

Definition at line 72 of file SUMOSAXNeworkfileHandler.java.

References currentElementType, and UNKNOWN.

00072                                                                                            {
00073         this.currentElementType = UNKNOWN;
00074     }

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

Definition at line 36 of file SUMOSAXNeworkfileHandler.java.

References CEDGE, cEdgeId, currentElementType, EDGE, LANE, de::psi::telco::sumoplayer::SUMONetwork::lanes, network, OFFSET, PROJ, sumoEdgeId, and sumoLaneId.

00036                                                                                                                     {
00037         if (qName.equals("edge")){
00038             this.currentElementType = EDGE;
00039             sumoEdgeId = attributes.getValue("id");
00040             
00041         }else if (qName.equals("lane")){
00042             this.currentElementType = LANE;
00043             sumoLaneId = attributes.getValue("id");
00044             
00045             network.lanes.put(sumoLaneId, new SUMOLane(sumoLaneId));
00046             
00047         }else if (qName.equals("cedge")){   // cedges seem to be mappings from sumo.edg.xml IDs to sumoIDs
00048             this.currentElementType = CEDGE;
00049             cEdgeId = attributes.getValue("id");
00050         }
00051         
00052         /*  // note junctions not interesting. all coordinates are stored within lanes
00053         else if (qName.equals("junction")){ // junction found. add it
00054             this.currentEementType = JUNCTION;
00055             
00056             //  i.e. <junction id="124667945" type="priority" x="3186.50" y="17778.50">...</junction>
00057             junctionId = attributes.getValue("id");
00058             double x = Double.parseDouble(attributes.getValue("x"));
00059             double y = Double.parseDouble(attributes.getValue("y"));
00060             network.addJunction(junctionId, x, y);
00061         }*/
00062         
00063         // some network cfg
00064         else if (qName.equals("net-offset")){
00065             this.currentElementType = OFFSET;
00066         }else if (qName.equals("orig-proj")){
00067             this.currentElementType = PROJ;
00068         }
00069         
00070     }