diff options
Diffstat (limited to 'src/org/traccar/protocol')
| -rw-r--r-- | src/org/traccar/protocol/LaipacSFKamelProtocolDecoder.java | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/src/org/traccar/protocol/LaipacSFKamelProtocolDecoder.java b/src/org/traccar/protocol/LaipacSFKamelProtocolDecoder.java index decf279df..0966e83ff 100644 --- a/src/org/traccar/protocol/LaipacSFKamelProtocolDecoder.java +++ b/src/org/traccar/protocol/LaipacSFKamelProtocolDecoder.java @@ -55,6 +55,7 @@ public class LaipacSFKamelProtocolDecoder extends BaseProtocolDecoder { .expression("([0-9a-fA-F]{4}),") // Cell 1 - Cell ID Code .number("(d{3})") // Cell 2 - Country Code .number("(d{3})") // Cell 2 - Operator Code + .optional(4) .text("*") .number("(xx)") // checksum .compile(); @@ -102,27 +103,35 @@ public class LaipacSFKamelProtocolDecoder extends BaseProtocolDecoder { position.set(Position.KEY_GPS, parser.nextInt()); position.set(Position.KEY_ANALOG_1, parser.nextDouble() * 0.001); position.set(Position.KEY_ANALOG_2, parser.nextDouble() * 0.001); - position.set(Position.KEY_CELL_NET_CODE, parser.next()); - position.set(Position.KEY_CELL_ID_CODE, parser.next()); - position.set(Position.KEY_COUNTRY_CODE, parser.next()); - position.set(Position.KEY_OPERATOR, parser.next()); + String checksum = parser.next(); + if (parser.hasNext()) { + position.set(Position.KEY_CELL_NET_CODE, checksum); + position.set(Position.KEY_CELL_ID_CODE, parser.next()); + position.set(Position.KEY_COUNTRY_CODE, parser.next()); + position.set(Position.KEY_OPERATOR, parser.next()); + checksum = parser.next(); + } + + String result = sentence.replaceAll("^\\$(.*)\\*[0-9a-fA-F]{2}$", "$1"); + if (Integer.parseInt(checksum, 16) != Checksum.xor(result)) + { + return null; + } if (channel != null) { - if (Character.isLowerCase(status.charAt(0))) { + if (eventCode.equals("3")) { + channel.write("$AVCFG,00000000,d*31\r\n"); + } else if (eventCode.equals("X") || eventCode.equals("4")) { + channel.write("$AVCFG,00000000,x*2D\r\n"); + } else if (Character.isLowerCase(status.charAt(0))) { String response = "$EAVACK," + eventCode + "," + checksum; response += Checksum.nmea(response); + response += "\r\n"; channel.write(response); } - - if (eventCode.equals("3")) { - channel.write("$AVCFG,00000000,d*31"); - } else if (eventCode.equals("X") || eventCode.equals("4")) { - channel.write("$AVCFG,00000000,x*2D"); - } } return position; } - } |