Package org.h2gis.functions.io.gpx.model

Class GpxPreparser

java.lang.Object

org.xml.sax.helpers.DefaultHandler

org.h2gis.functions.io.gpx.model.GpxPreparser

All Implemented Interfaces:

ContentHandler, DTDHandler, EntityResolver, ErrorHandler

public final class GpxPreparser
extends DefaultHandler

GpxPreparser class just reads the document. It says what type of elements (waypoints, routes ,routepoints, tracks, track segments, trackpoints) the document contains. It also counts each type of elements.

Author:

Antonin Piasco, Erwan Bocher

Constructor Summary

Constructors

Constructor	Description
GpxPreparser()	Initializing of the pre-parser.

Method Summary

Modifier and Type	Method	Description
int	getTotalRte()	Gives the total number of routes contained in the GPX file.
int	getTotalRtept()	Gives the total number of routepoints contained in the GPX file.
int	getTotalTrk()	Gives the total number of tracks contained in the GPX file.
int	getTotalTrkpt()	Gives the total number of trackpoints contained in the GPX file.
int	getTotalTrkseg()	Gives the total number of track segments contained in the GPX file.
int	getTotalWpt()	Gives the total number of waypoints contained in the GPX file.
String	getVersion()	Gives the version of the gpx file.
boolean	read(File inputFile, String encoding)	Reads the document and pre-parses it.
void	startElement(String uri, String localName, String qName, Attributes attributes)	Fires whenever an XML start markup is encountered.

Methods inherited from class org.xml.sax.helpers.DefaultHandler

characters, endDocument, endElement, endPrefixMapping, error, fatalError, ignorableWhitespace, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl, warning

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GpxPreparser

public GpxPreparser()

Initializing of the pre-parser. All values are set to zero.

Method Detail

read

public boolean read(File inputFile,
                    String encoding)
             throws SAXException,
                    IOException

Reads the document and pre-parses it. The other method is called automatically when a start markup is found.

Parameters:

inputFile - the file to read

Returns:

a boolean if the parser ends successfully or not

Throws:

SAXException

IOException

startElement

public void startElement(String uri,
                         String localName,
                         String qName,
                         Attributes attributes)
                  throws SAXException

Fires whenever an XML start markup is encountered. It indicates which version of gpx file is to be parsed. It counts the waypoints, routes, routepoints, tracks, track segments and trackpoints.

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class DefaultHandler

Parameters:

uri - URI of the local element

localName - Name of the local element (without prefix)

qName - qName of the local element (with prefix)

attributes - Attributes of the local element (contained in the markup)

Throws:

SAXException - Any SAX exception, possibly wrapping another exception

getVersion

public String getVersion()

Gives the version of the gpx file.

Returns:

getTotalWpt

public int getTotalWpt()

Gives the total number of waypoints contained in the GPX file.

Returns:

the total number of waypoints

getTotalRte

public int getTotalRte()

Gives the total number of routes contained in the GPX file.

Returns:

the total number of routes

getTotalRtept

public int getTotalRtept()

Gives the total number of routepoints contained in the GPX file.

Returns:

the total number of routepoints

getTotalTrk

public int getTotalTrk()

Gives the total number of tracks contained in the GPX file.

Returns:

the total number of tracks

getTotalTrkseg

public int getTotalTrkseg()

Gives the total number of track segments contained in the GPX file.

Returns:

the total number of track segments

getTotalTrkpt

public int getTotalTrkpt()

Gives the total number of trackpoints contained in the GPX file.

Returns:

the total number of trackpoints