protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
FullHttpRequest request = (FullHttpRequest) msg;
QueryStringDecoder decoder = new QueryStringDecoder(request.uri());
Map<String, List<String>> params = decoder.parameters();
if (params.isEmpty()) {
decoder = new QueryStringDecoder(request.content().toString(StandardCharsets.US_ASCII), false);
params = decoder.parameters();
}
Position position = new Position(getProtocolName());
position.setValid(true);
/* 坐标转换 WGS84 -> GCJ02 BD09*/
Double tlat = Double.parseDouble(params.get("lat").get(0));
Double tlon = Double.parseDouble(params.get("lon").get(0));
double pos_gcj02[] = GpsCoordinateUtils.calWGS84toGCJ02(tlat, tlon);
double pos_bd09[] = GpsCoordinateUtils.calWGS84toBD09(tlat, tlon);
Network network = new Network();
for (Map.Entry<String, List<String>> entry : params.entrySet()) {
for (String value : entry.getValue()) {
switch (entry.getKey()) {
case "id":
case "deviceid":
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, value);
if (deviceSession == null) {
sendResponse(channel, HttpResponseStatus.BAD_REQUEST);
return null;
}
position.setDeviceId(deviceSession.getDeviceId());
break;
case "valid":
position.setValid(Boolean.parseBoolean(value) || "1".equals(value));
break;
case "timestamp":
try {
long timestamp = Long.parseLong(value);
if (timestamp < Integer.MAX_VALUE) {
timestamp *= 1000;
}
position.setTime(new Date(timestamp));
} catch (NumberFormatException error) {
if (value.contains("T")) {
position.setTime(DateUtil.parseDate(value));
} else {
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
position.setTime(dateFormat.parse(value));
}
}
break;
case "lat":
position.setLatitude(Double.parseDouble(value)); // WGS84
position.setLatitude_gcj02(pos_gcj02[0]); // GCJ02
position.setLatitude_bd09(pos_bd09[0]); // BD09
break;
case "lon":
position.setLongitude(Double.parseDouble(value)); // WGS84
position.setLongitude_gcj02(pos_gcj02[1]); // GCJ02
position.setLongitude_bd09(pos_bd09[1]); // BD09
break;
case "location":
String[] location = value.split(","); // WGS84
position.setLatitude(Double.parseDouble(location[0]));
position.setLongitude(Double.parseDouble(location[1]));
position.setLatitude_gcj02(pos_gcj02[0]); // GCJ02
position.setLongitude_gcj02(pos_gcj02[1]); // GCJ02
position.setLatitude_bd09(pos_bd09[0]); // BD09
position.setLongitude_bd09(pos_bd09[1]); // BD09
break;
case "cell":
String[] cell = value.split(",");
if (cell.length > 4) {
network.addCellTower(CellTower.from(
Integer.parseInt(cell[0]), Integer.parseInt(cell[1]),
Integer.parseInt(cell[2]), Integer.parseInt(cell[3]), Integer.parseInt(cell[4])));
} else {
network.addCellTower(CellTower.from(
Integer.parseInt(cell[0]), Integer.parseInt(cell[1]),
Integer.parseInt(cell[2]), Integer.parseInt(cell[3])));
}
break;
case "wifi":
String[] wifi = value.split(",");
network.addWifiAccessPoint(WifiAccessPoint.from(
wifi[0].replace('-', ':'), Integer.parseInt(wifi[1])));
break;
case "speed":
position.setSpeed(convertSpeed(Double.parseDouble(value), "kn"));
break;
case "bearing":
case "heading":
position.setCourse(Double.parseDouble(value));
break;
case "altitude":
position.setAltitude(Double.parseDouble(value));
break;
case "accuracy":
position.setAccuracy(Double.parseDouble(value));
break;
case "hdop":
position.set(Position.KEY_HDOP, Double.parseDouble(value));
break;
case "batt":
position.set(Position.KEY_BATTERY_LEVEL, Double.parseDouble(value));
break;
case "driverUniqueId":
position.set(Position.KEY_DRIVER_UNIQUE_ID, value);
break;
default:
try {
position.set(entry.getKey(), Double.parseDouble(value));
} catch (NumberFormatException e) {
switch (value) {
case "true":
position.set(entry.getKey(), true);
break;
case "false":
position.set(entry.getKey(), false);
break;
default:
position.set(entry.getKey(), value);
break;
}
}
break;
}
}
}
if (position.getFixTime() == null) {
position.setTime(new Date());
}
if (network.getCellTowers() != null || network.getWifiAccessPoints() != null) {
position.setNetwork(network);
}
if (position.getLatitude() == 0 && position.getLongitude() == 0) {
getLastLocation(position, position.getDeviceTime());
}
if (position.getDeviceId() != 0) {
sendResponse(channel, HttpResponseStatus.OK);
return position;
} else {
sendResponse(channel, HttpResponseStatus.BAD_REQUEST);
return null;
}
}