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author | Anton Tananaev <anton@traccar.org> | 2022-09-18 10:01:28 -0700 |
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committer | Anton Tananaev <anton@traccar.org> | 2022-09-18 10:01:28 -0700 |
commit | 4de8efe1ef0810af492c161bfc1d3200958d75d8 (patch) | |
tree | 1b8d072127010f2dce6fc3b0e110d17f11a3fac7 /src/main/java/org/traccar/helper | |
parent | 25fe164e19787ce9cfeb18390c72393575ac81ed (diff) | |
download | trackermap-server-4de8efe1ef0810af492c161bfc1d3200958d75d8.tar.gz trackermap-server-4de8efe1ef0810af492c161bfc1d3200958d75d8.tar.bz2 trackermap-server-4de8efe1ef0810af492c161bfc1d3200958d75d8.zip |
Refactor M-5000/10000 decoding
Diffstat (limited to 'src/main/java/org/traccar/helper')
-rw-r--r-- | src/main/java/org/traccar/helper/NMEA.java | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/src/main/java/org/traccar/helper/NMEA.java b/src/main/java/org/traccar/helper/NMEA.java deleted file mode 100644 index cae47a8f6..000000000 --- a/src/main/java/org/traccar/helper/NMEA.java +++ /dev/null @@ -1,126 +0,0 @@ -package org.traccar.helper; - -import java.util.HashMap; -import java.util.Map; - - -public class NMEA { - - // fucking java interfaces - interface SentenceParser { - public boolean parse(String[] tokens, GPSPosition position); - } - - // utils - static float Latitude2Decimal(String lat, String NS) { - float med = Float.parseFloat(lat.substring(2)) / 60.0f; - med += Float.parseFloat(lat.substring(0, 2)); - if (NS.startsWith("S")) { - med = -med; - } - return med; - } - - static float Longitude2Decimal(String lon, String WE) { - float med = Float.parseFloat(lon.substring(3)) / 60.0f; - med += Float.parseFloat(lon.substring(0, 3)); - if (WE.startsWith("W")) { - med = -med; - } - return med; - } - - // parsers - class GPGGA implements SentenceParser { - public boolean parse(String[] tokens, GPSPosition position) { - position.time = Float.parseFloat(tokens[1]); - position.lat = Latitude2Decimal(tokens[2], tokens[3]); - position.lon = Longitude2Decimal(tokens[4], tokens[5]); - position.quality = Integer.parseInt(tokens[6]); - position.altitude = Float.parseFloat(tokens[9]); - return true; - } - } - - class GPGGL implements SentenceParser { - public boolean parse(String[] tokens, GPSPosition position) { - position.lat = Latitude2Decimal(tokens[1], tokens[2]); - position.lon = Longitude2Decimal(tokens[3], tokens[4]); - position.time = Float.parseFloat(tokens[5]); - return true; - } - } - - class GPRMC implements SentenceParser { - public boolean parse(String[] tokens, GPSPosition position) { - position.time = Float.parseFloat(tokens[1]); - position.lat = Latitude2Decimal(tokens[3], tokens[4]); - position.lon = Longitude2Decimal(tokens[5], tokens[6]); - position.velocity = Float.parseFloat(tokens[7]); - position.dir = Float.parseFloat(tokens[8]); - return true; - } - } - - class GPVTG implements SentenceParser { - public boolean parse(String[] tokens, GPSPosition position) { - position.dir = Float.parseFloat(tokens[3]); - return true; - } - } - - class GPRMZ implements SentenceParser { - public boolean parse(String[] tokens, GPSPosition position) { - position.altitude = Float.parseFloat(tokens[1]); - return true; - } - } - - public class GPSPosition { - public float time = 0.0f; - public float lat = 0.0f; - public float lon = 0.0f; - public boolean fixed = false; - public int quality = 0; - public float dir = 0.0f; - public float altitude = 0.0f; - public float velocity = 0.0f; - - public void updatefix() { - fixed = quality > 0; - } - - public String toString() { - return String.format("POSITION: lat: %f, lon: %f, time: %f, Q: %d, dir: %f, alt: %f, vel: %f", lat, lon, time, quality, dir, altitude, velocity); - } - } - - GPSPosition position = new GPSPosition(); - - private static final Map<String, SentenceParser> sentenceParsers = new HashMap<String, SentenceParser>(); - - public NMEA() { - sentenceParsers.put("GPGGA", new GPGGA()); - sentenceParsers.put("GPGGL", new GPGGL()); - sentenceParsers.put("GPRMC", new GPRMC()); - sentenceParsers.put("GPRMZ", new GPRMZ()); - //only really good GPS devices have this sentence but ... - sentenceParsers.put("GPVTG", new GPVTG()); - } - - public GPSPosition parse(String line) { - - if (line.startsWith("$")) { - String nmea = line.substring(1); - String[] tokens = nmea.split(","); - String type = tokens[0]; - //TODO check crc - if (sentenceParsers.containsKey(type)) { - sentenceParsers.get(type).parse(tokens, position); - } - position.updatefix(); - } - - return position; - } -} |