org.openstreetmap.josm.io.nmea

Class NmeaReader

java.lang.Object

org.openstreetmap.josm.io.nmea.NmeaReader

public class NmeaReader
extends java.lang.Object

Reads a NMEA 0183 file. Based on information from http://www.catb.org/gpsd. NMEA files are in printable ASCII form and may include information such as position, speed, depth, frequency allocation, etc. Typical messages might be 11 to a maximum of 79 characters in length. NMEA standard aims to support one-way serial data transmission from a single "talker" to one or more "listeners". The type of talker is identified by a 2-character mnemonic. NMEA information is encoded through a list of "sentences".

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
(package private) static class	NmeaReader.GGA
(package private) static class	NmeaReader.GLL
(package private) static class	NmeaReader.GSA
private static class	NmeaReader.NMEAParserState
(package private) static class	NmeaReader.RMC
(package private) static class	NmeaReader.VTG

Field Summary

Fields

Modifier and Type	Field and Description
GpxData	data
NmeaReader.NMEAParserState	ps
private java.text.SimpleDateFormat	rmcTimeFmt
private java.text.SimpleDateFormat	rmcTimeFmtStd

Constructor Summary

Constructors

Constructor and Description
NmeaReader(java.io.InputStream source) Constructs a new NmeaReader

Method Summary

Modifier and Type	Method and Description
int	getNumberOfCoordinates()
int	getParserChecksumErrors()
int	getParserMalformed()
int	getParserUnknown()
int	getParserZeroCoordinates()
(package private) static boolean	isSentence(java.lang.String address, Sentence formatter) Determines if the given address denotes the given NMEA sentence formatter of a known talker.
private static LatLon	parseLatLon(java.lang.String ns, java.lang.String ew, java.lang.String dlat, java.lang.String dlon)
private boolean	parseNMEASentence(java.lang.String s, NmeaReader.NMEAParserState ps)
private java.util.Date	readTime(java.lang.String p)

Methods inherited from class java.lang.Object

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

Field Detail

data

public GpxData data

rmcTimeFmt

private final java.text.SimpleDateFormat rmcTimeFmt

rmcTimeFmtStd

private final java.text.SimpleDateFormat rmcTimeFmtStd

ps

public NmeaReader.NMEAParserState ps

Constructor Detail

NmeaReader

public NmeaReader(java.io.InputStream source)
           throws java.io.IOException

Constructs a new NmeaReader

Parameters:

source - NMEA file input stream

Throws:

java.io.IOException - if an I/O error occurs

Method Detail

readTime

private java.util.Date readTime(java.lang.String p)
                         throws IllegalDataException

Throws:

IllegalDataException

getParserUnknown

public int getParserUnknown()

getParserZeroCoordinates

public int getParserZeroCoordinates()

getParserChecksumErrors

public int getParserChecksumErrors()

getParserMalformed

public int getParserMalformed()

getNumberOfCoordinates

public int getNumberOfCoordinates()

isSentence

static boolean isSentence(java.lang.String address,
                          Sentence formatter)

Determines if the given address denotes the given NMEA sentence formatter of a known talker.

Parameters:

address - first tag of an NMEA sentence

formatter - sentence formatter mnemonic code

Returns:

true if the address denotes the given NMEA sentence formatter of a known talker

parseNMEASentence

private boolean parseNMEASentence(java.lang.String s,
                                  NmeaReader.NMEAParserState ps)
                           throws IllegalDataException

Throws:

IllegalDataException

parseLatLon

private static LatLon parseLatLon(java.lang.String ns,
                                  java.lang.String ew,
                                  java.lang.String dlat,
                                  java.lang.String dlon)