org.ka2ddo.aprs

Class GpsRawMessage

java.lang.Object

org.ka2ddo.ax25.AX25Message

org.ka2ddo.aprs.Message

org.ka2ddo.aprs.PositionMessage

org.ka2ddo.aprs.GpsRawMessage

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.lang.Comparable<AX25Message>, CommentedMessage

public class GpsRawMessage
extends PositionMessage

This class represents a message decoded from a raw GPS NMEA data string (APRS protocol specification chapter 6).

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.ka2ddo.ax25.AX25Message

AX25Message.Precedence

Field Summary

Fields inherited from class org.ka2ddo.aprs.PositionMessage

abc, altitude, altitudeUnit, COMPRESSED_LAT_SCALING, CONV_MPH_TO_METERS_PER_SEC, DHM, fLatitude, fLatPrecision, fLongitude, fmtMonitorFreq, HMS, isCustom, latitude, LN_BASE1_08, longitude, MDHM

Fields inherited from class org.ka2ddo.aprs.Message

comment, extensions, msgType, S_PERMANENT, S_PERMANENT_UC, symbolCode, symTableId, USASCII

Fields inherited from class org.ka2ddo.ax25.AX25Message

ax25Frame, invalid, ISO_8859_1, originatingCallsign, PERMANENT, rcptTime, thirdParty, timestamp, UTC, UTF8

Constructor Summary

Constructors

Constructor and Description
GpsRawMessage(byte[] body, int offset, java.lang.String tp, long rcvTimestamp, AX25Callsign src, AX25Callsign dest) Create a GpsRawMessage from the bytes in a byte array (such as the body of an AX25Frame).
GpsRawMessage(GpsFix fix, char symTableId, char symbolCode) Alternate constructor to support remote GPS tracking.
GpsRawMessage(java.lang.String line, long timestamp, java.lang.String callsign, java.lang.String lat, java.lang.String lon, int speed, int bearing, char symTableId, char symbolCode) Alternate constructor to support waypoint sentence backfeeds from Kenwood D7100/D710 GPS jack.

Method Summary

Modifier and Type	Method and Description
boolean	isSymbolInferred() Report whether the non-null APRS symbol reported by this message is explicit or inferred from destination or source callsign.

Methods inherited from class org.ka2ddo.aprs.PositionMessage

appendAreaParameters, appendRepeaterParameters, appendSignpostParameters, bodyEquals, createObjectFromThisPosition, decodeDataExtension, decodeLatitude, decodeLongitude, decodeOnlyLatitude, decodeOnlyLongitude, encodeLatitudeCompressed, encodeLatitudePlainText, encodeLongitudeCompressed, encodeLongitudePlainText, extractCompressedLatitude, extractCompressedLongitude, extractLatitude, extractLongitude, getAbc, getAltitude, getAltitudeUnit, getCustom, getLatitude, getLatitudeAccuracy, getLongitude, hasPosition, isEnabled, isShowDate, isUsingCompressedFormat, looksLikeFrequency, looksLikeFrequency, paramString, setAbc, setLatitude, setLocation, setLongitude, setShowDate, testIfValidCompressedLocation

Methods inherited from class org.ka2ddo.aprs.Message

compareTo, decodeDatestamp, decodeHurricaneParams, decodeTimestamp, decodeWeatherParams, decodeWeatherParams, dup, encodeTimestamp, extractComment, extractComment, extractSymbol, formatBody, getComment, getExtension, getExtensionString, getMsgType, getReadOnlyExtensionMap, getSymbolCode, getSymTableId, hasWeather, inferSymbol, looksLikeLongFormatLatitude, setComment, setSymbolCode, setSymTableId, storeExtension, toString

Methods inherited from class org.ka2ddo.ax25.AX25Message

equals, extractSource, getAx25Frame, getFirstDigipeat, getLastDigipeat, getOriginalDestination, getOriginalSource, getOriginatingCallsign, getPrecedence, getRcptTime, getTimestamp, hashCode, hasThisFirstDigi, indexOf, indexOf, isInvalid, onlyDigits, onlyDigits, onlyDigitsOrPeriod, onlyDigitsOrSpace, onlyDigitsPlus, onlyPeriods, setAx25Frame, setInvalid, setOriginatingCallsign, setRcptTime, setTimestamp, split

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

GpsRawMessage

public GpsRawMessage(byte[] body,
                     int offset,
                     java.lang.String tp,
                     long rcvTimestamp,
                     AX25Callsign src,
                     AX25Callsign dest)

Create a GpsRawMessage from the bytes in a byte array (such as the body of an AX25Frame).

Parameters:

body - byte array containing the transmission format of the message

offset - index into the array where the message starts

tp - String of third-party routing information (or null if this was not routed over another network)

rcvTimestamp - the time (in milliseconds in Jan 1970 UTC) when this message was received

src - AX25Callsign of sending station

dest - AX25Callsign of destination tocall

GpsRawMessage

public GpsRawMessage(GpsFix fix,
                     char symTableId,
                     char symbolCode)

Alternate constructor to support remote GPS tracking.

Parameters:

fix - GpsFix record to extract fix from

symTableId - APRS symbol table ID or overlay for remote GPS

symbolCode - APRS symbol code for remote GPS

GpsRawMessage

public GpsRawMessage(java.lang.String line,
                     long timestamp,
                     java.lang.String callsign,
                     java.lang.String lat,
                     java.lang.String lon,
                     int speed,
                     int bearing,
                     char symTableId,
                     char symbolCode)

Alternate constructor to support waypoint sentence backfeeds from Kenwood D7100/D710 GPS jack.

Parameters:

line - String of GPS sentence parsed apart to provide related parameters

timestamp - timestamp in Java milliseconds since midnight Jan 1 1970 UTC

callsign - callsign of reported station

lat - latitude in APRS standard ddmm.mmN format

lon - longitude in APRS standard dddmm.mmW format

speed - speed in knots, or -1 if not provided

bearing - bearing in degrees from true North

symTableId - symbol table ID or overlay character

symbolCode - symbol code character

Method Detail

isSymbolInferred

public boolean isSymbolInferred()

Report whether the non-null APRS symbol reported by this message is explicit or inferred from destination or source callsign. Intended to be overridden by message types which can infer a symbol but can't explicitly specify the symbol.

Overrides:

isSymbolInferred in class Message

Returns:

boolean true if symbol is inferred