diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/org/traccar/protocol/GlobalSatProtocolDecoder.java | 114 |
1 files changed, 104 insertions, 10 deletions
diff --git a/src/org/traccar/protocol/GlobalSatProtocolDecoder.java b/src/org/traccar/protocol/GlobalSatProtocolDecoder.java index ee94158be..2cef212d1 100644 --- a/src/org/traccar/protocol/GlobalSatProtocolDecoder.java +++ b/src/org/traccar/protocol/GlobalSatProtocolDecoder.java @@ -15,7 +15,6 @@ */ package org.traccar.protocol; -import java.sql.ResultSet; import java.util.Calendar; import java.util.Properties; import java.util.TimeZone; @@ -25,9 +24,7 @@ import org.jboss.netty.channel.Channel; import org.jboss.netty.channel.ChannelHandlerContext; import org.traccar.BaseProtocolDecoder; import org.traccar.ServerManager; -import org.traccar.helper.AdvancedConnection; import org.traccar.helper.Log; -import org.traccar.helper.NamedParameterStatement; import org.traccar.model.ExtendedInfoFormatter; import org.traccar.model.Position; @@ -52,14 +49,9 @@ public class GlobalSatProtocolDecoder extends BaseProtocolDecoder { } } } + + private Position decodeOriginal(Channel channel, String sentence) { - @Override - protected Object decode( - ChannelHandlerContext ctx, Channel channel, Object msg) - throws Exception { - - String sentence = (String) msg; - // Send acknowledgement if (channel != null) { channel.write("ACK\r"); @@ -181,5 +173,107 @@ public class GlobalSatProtocolDecoder extends BaseProtocolDecoder { position.setExtendedInfo(extendedInfo.toString()); return position; } + + static private Pattern pattern = Pattern.compile( + "\\$" + + "(\\d+)," + // IMEI + "\\d+," + // mode + "(\\d)," + // Fix + "(\\d{2})(\\d{2})(\\d{2})," + // Date (DDMMYY) + "(\\d{2})(\\d{2})(\\d{2})," + // Time (HHMMSS) + "([EW])" + + "(\\d{3})(\\d{2}\\.\\d+)," + // Longitude (DDDMM.MMMM) + "([NS])" + + "(\\d{2})(\\d{2}\\.\\d+)," + // Latitude (DDMM.MMMM) + "(\\d+\\.?\\d*)," + // Altitude + "(\\d+\\.?\\d*)," + // Speed + "(\\d+)," + // Course + "(\\d+)," + // Satellites + "(\\d+\\.?\\d*)"); // HDOP + + private Position decodeAlternative(Channel channel, String sentence) { + + // Parse message + Matcher parser = pattern.matcher(sentence); + if (!parser.matches()) { + return null; + } + + // Create new position + Position position = new Position(); + ExtendedInfoFormatter extendedInfo = new ExtendedInfoFormatter("globalsat"); + Integer index = 1; + + // Identification + String imei = parser.group(index++); + try { + position.setDeviceId(getDataManager().getDeviceByImei(imei).getId()); + } catch(Exception error) { + Log.warning("Unknown device - " + imei); + return null; + } + + // Validity + position.setValid(parser.group(index++).compareTo("1") != 0 ? true : false); + + // Time + Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC")); + time.clear(); + time.set(Calendar.DAY_OF_MONTH, Integer.valueOf(parser.group(index++))); + time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1); + time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++))); + time.set(Calendar.HOUR, Integer.valueOf(parser.group(index++))); + time.set(Calendar.MINUTE, Integer.valueOf(parser.group(index++))); + time.set(Calendar.SECOND, Integer.valueOf(parser.group(index++))); + position.setTime(time.getTime()); + + // Longitude + String hemisphere = parser.group(index++); + Double lonlitude = Double.valueOf(parser.group(index++)); + lonlitude += Double.valueOf(parser.group(index++)) / 60; + if (hemisphere.compareTo("W") == 0) lonlitude = -lonlitude; + position.setLongitude(lonlitude); + + // Latitude + hemisphere = parser.group(index++); + Double latitude = Double.valueOf(parser.group(index++)); + latitude += Double.valueOf(parser.group(index++)) / 60; + if (hemisphere.compareTo("S") == 0) latitude = -latitude; + position.setLatitude(latitude); + + // Altitude + position.setAltitude(Double.valueOf(parser.group(index++))); + + // Speed + position.setSpeed(Double.valueOf(parser.group(index++))); + + // Course + position.setCourse(Double.valueOf(parser.group(index++))); + + // Satellites + extendedInfo.set("satellites", Integer.valueOf(parser.group(index++))); + + // HDOP + extendedInfo.set("hdop", parser.group(index++)); + + position.setExtendedInfo(extendedInfo.toString()); + return position; + } + + @Override + protected Object decode( + ChannelHandlerContext ctx, Channel channel, Object msg) + throws Exception { + + String sentence = (String) msg; + + if (sentence.startsWith("GS")) { + return decodeOriginal(channel, sentence); + } else if (sentence.startsWith("$")) { + return decodeAlternative(channel, sentence); + } + + return null; + } } |