Examples with NetworkMessage org.traccar.NetworkMessage used on opensource projects

Example 36 with NetworkMessage

use of org.traccar.NetworkMessage in project traccar by tananaev.

the class TytanProtocolDecoder method decode.

@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
    ByteBuf buf = (ByteBuf) msg;
    // protocol
    buf.readUnsignedByte();
    // length
    buf.readUnsignedShort();
    int index = buf.readUnsignedByte() >> 3;
    if (channel != null) {
        ByteBuf response = Unpooled.copiedBuffer("^" + index, StandardCharsets.US_ASCII);
        channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
    }
    String id = String.valueOf(buf.readUnsignedInt());
    DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, id);
    if (deviceSession == null) {
        return null;
    }
    List<Position> positions = new LinkedList<>();
    while (buf.readableBytes() > 2) {
        Position position = new Position(getProtocolName());
        position.setDeviceId(deviceSession.getDeviceId());
        int end = buf.readerIndex() + buf.readUnsignedByte();
        position.setTime(new Date(buf.readUnsignedInt() * 1000));
        int flags = buf.readUnsignedByte();
        position.set(Position.KEY_SATELLITES, BitUtil.from(flags, 2));
        position.setValid(BitUtil.to(flags, 2) > 0);
        // Latitude
        double lat = buf.readUnsignedMedium();
        lat = lat * -180 / 16777216 + 90;
        position.setLatitude(lat);
        // Longitude
        double lon = buf.readUnsignedMedium();
        lon = lon * 360 / 16777216 - 180;
        position.setLongitude(lon);
        // Status
        flags = buf.readUnsignedByte();
        position.set(Position.KEY_IGNITION, BitUtil.check(flags, 0));
        position.set(Position.KEY_RSSI, BitUtil.between(flags, 2, 5));
        position.setCourse((BitUtil.from(flags, 5) * 45 + 180) % 360);
        // Speed
        int speed = buf.readUnsignedByte();
        if (speed < 250) {
            position.setSpeed(UnitsConverter.knotsFromKph(speed));
        }
        decodeExtraData(position, buf, end);
        positions.add(position);
    }
    return positions;
}

Example 37 with NetworkMessage

use of org.traccar.NetworkMessage in project traccar by tananaev.

the class TaipProtocolDecoder method decodeAttributes.

private Position decodeAttributes(Channel channel, SocketAddress remoteAddress, Position position, String[] attributes) {
    String uniqueId = null;
    DeviceSession deviceSession = null;
    String messageIndex = null;
    if (attributes != null) {
        for (String attribute : attributes) {
            int index = attribute.indexOf('=');
            if (index != -1) {
                String key = attribute.substring(0, index).toLowerCase();
                String value = attribute.substring(index + 1);
                switch(key) {
                    case "id":
                        uniqueId = value;
                        deviceSession = getDeviceSession(channel, remoteAddress, value);
                        if (deviceSession != null) {
                            position.setDeviceId(deviceSession.getDeviceId());
                        }
                        break;
                    case "io":
                        position.set(Position.KEY_IGNITION, BitUtil.check(value.charAt(0) - '0', 0));
                        position.set(Position.KEY_CHARGE, BitUtil.check(value.charAt(0) - '0', 1));
                        position.set(Position.KEY_OUTPUT, value.charAt(1) - '0');
                        position.set(Position.KEY_INPUT, value.charAt(2) - '0');
                        break;
                    case "ix":
                        position.set(Position.PREFIX_IO + 1, value);
                        break;
                    case "ad":
                        position.set(Position.PREFIX_ADC + 1, Integer.parseInt(value));
                        break;
                    case "sv":
                        position.set(Position.KEY_SATELLITES, Integer.parseInt(value));
                        break;
                    case "bl":
                        position.set(Position.KEY_BATTERY, Integer.parseInt(value) * 0.001);
                        break;
                    case "vo":
                        position.set(Position.KEY_ODOMETER, Long.parseLong(value));
                        break;
                    default:
                        position.set(key, value);
                        break;
                }
            } else if (attribute.startsWith("#")) {
                messageIndex = attribute;
            }
        }
    }
    if (deviceSession != null) {
        if (channel != null) {
            if (messageIndex != null) {
                String response;
                if (messageIndex.startsWith("#IP")) {
                    response = ">SAK;ID=" + uniqueId + ";" + messageIndex + "<";
                } else {
                    response = ">ACK;ID=" + uniqueId + ";" + messageIndex + ";*";
                    response += String.format("%02X", Checksum.xor(response)) + "<";
                }
                channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
            } else {
                channel.writeAndFlush(new NetworkMessage(uniqueId, remoteAddress));
            }
        }
        return position;
    }
    return null;
}

Example 38 with NetworkMessage

use of org.traccar.NetworkMessage in project traccar by tananaev.

the class ThinkPowerProtocolDecoder method sendResponse.

private void sendResponse(Channel channel, int type, int index, ByteBuf content) {
    if (channel != null) {
        ByteBuf response = Unpooled.buffer();
        response.writeByte(type);
        response.writeByte(index);
        if (content != null) {
            response.writeShort(content.readableBytes());
            response.writeBytes(content);
            content.release();
        } else {
            response.writeShort(0);
        }
        response.writeShort(Checksum.crc16(Checksum.CRC16_CCITT_FALSE, response.nioBuffer()));
        channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress()));
    }
}

Example 39 with NetworkMessage

use of org.traccar.NetworkMessage in project traccar by tananaev.

the class ThinkRaceProtocolDecoder method decode.

@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
    ByteBuf buf = (ByteBuf) msg;
    // header
    buf.skipBytes(2);
    ByteBuf id = buf.readSlice(12);
    // separator
    buf.readUnsignedByte();
    int type = buf.readUnsignedByte();
    // length
    buf.readUnsignedShort();
    if (type == MSG_LOGIN) {
        // 0x00 - heartbeat
        int command = buf.readUnsignedByte();
        if (command == 0x01) {
            String imei = buf.toString(buf.readerIndex(), 15, StandardCharsets.US_ASCII);
            DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
            if (deviceSession != null && channel != null) {
                ByteBuf response = Unpooled.buffer();
                // header
                response.writeByte(0x48);
                // header
                response.writeByte(0x52);
                response.writeBytes(id);
                // separator
                response.writeByte(0x2c);
                response.writeByte(type);
                // length
                response.writeShort(0x0002);
                response.writeShort(0x8000);
                // checksum
                response.writeShort(0x0000);
                channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
            }
        }
    } else if (type == MSG_GPS) {
        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
        if (deviceSession == null) {
            return null;
        }
        Position position = new Position(getProtocolName());
        position.setDeviceId(deviceSession.getDeviceId());
        position.setTime(new Date(buf.readUnsignedInt() * 1000));
        int flags = buf.readUnsignedByte();
        position.setValid(true);
        position.setLatitude(convertCoordinate(buf.readUnsignedInt(), !BitUtil.check(flags, 0)));
        position.setLongitude(convertCoordinate(buf.readUnsignedInt(), !BitUtil.check(flags, 1)));
        position.setSpeed(buf.readUnsignedByte());
        position.setCourse(buf.readUnsignedByte());
        position.setNetwork(new Network(CellTower.fromLacCid(buf.readUnsignedShort(), buf.readUnsignedShort())));
        return position;
    }
    return null;
}

Example 40 with NetworkMessage

use of org.traccar.NetworkMessage in project traccar by tananaev.

the class TopinProtocolDecoder method sendResponse.

private void sendResponse(Channel channel, int length, int type, ByteBuf content) {
    if (channel != null) {
        ByteBuf response = Unpooled.buffer();
        response.writeShort(0x7878);
        response.writeByte(length);
        response.writeByte(type);
        response.writeBytes(content);
        response.writeByte('\r');
        response.writeByte('\n');
        content.release();
        channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress()));
    }
}