From 9f8505ebf73bba5e329fc5467fe00e43f989fd0d Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Sun, 8 Nov 2020 16:12:48 -0800 Subject: Handle Cantrack heartbeat --- .../org/traccar/protocol/H02ProtocolDecoder.java | 37 ++++++++++++++++++++-- 1 file changed, 34 insertions(+), 3 deletions(-) (limited to 'src/main/java/org/traccar') diff --git a/src/main/java/org/traccar/protocol/H02ProtocolDecoder.java b/src/main/java/org/traccar/protocol/H02ProtocolDecoder.java index 320fe991d..a5dc1860a 100644 --- a/src/main/java/org/traccar/protocol/H02ProtocolDecoder.java +++ b/src/main/java/org/traccar/protocol/H02ProtocolDecoder.java @@ -1,5 +1,5 @@ /* - * Copyright 2012 - 2019 Anton Tananaev (anton@traccar.org) + * Copyright 2012 - 2020 Anton Tananaev (anton@traccar.org) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -286,6 +286,14 @@ public class H02ProtocolDecoder extends BaseProtocolDecoder { .any() .compile(); + private static final Pattern PATTERN_HTBT = new PatternBuilder() + .text("*HQ,") + .number("(d{15}),") // imei + .text("HTBT,") + .number("(d+)") // battery + .any() + .compile(); + private void sendResponse(Channel channel, SocketAddress remoteAddress, String id, String type) { if (channel != null && id != null) { String response; @@ -551,6 +559,28 @@ public class H02ProtocolDecoder extends BaseProtocolDecoder { return position; } + private Position decodeHeartbeat(String sentence, Channel channel, SocketAddress remoteAddress) { + + Parser parser = new Parser(PATTERN_HTBT, sentence); + if (!parser.matches()) { + return null; + } + + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next()); + if (deviceSession == null) { + return null; + } + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + getLastLocation(position, null); + + position.set(Position.KEY_BATTERY_LEVEL, parser.nextInt()); + + return position; + } + @Override protected Object decode( Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { @@ -572,9 +602,10 @@ public class H02ProtocolDecoder extends BaseProtocolDecoder { case "V0": case "HTBT": if (channel != null) { - channel.writeAndFlush(new NetworkMessage(sentence, remoteAddress)); + String response = sentence.substring(0, typeEnd) + "#"; + channel.writeAndFlush(new NetworkMessage(response, remoteAddress)); } - return null; + return decodeHeartbeat(sentence, channel, remoteAddress); case "NBR": return decodeLbs(sentence, channel, remoteAddress); case "LINK": -- cgit v1.2.3