Example usage for io.netty.buffer ByteBuf readUnsignedIntLE

Introduction

In this page you can find the example usage for io.netty.buffer ByteBuf readUnsignedIntLE.

Prototype

public abstract long readUnsignedIntLE();

Source Link

Document

Gets an unsigned 32-bit integer at the current readerIndex in the Little Endian Byte Order and increases the readerIndex by 4 in this buffer.

Usage

From source file:org.traccar.protocol.NyitechProtocolDecoder.java

License:Apache License

private void decodeLocation(Position position, ByteBuf buf) {

    DateBuilder dateBuilder = new DateBuilder()
            .setDateReverse(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
            .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
    position.setTime(dateBuilder.getDate());

    int flags = buf.readUnsignedByte();
    position.setValid(BitUtil.to(flags, 2) > 0);

    double lat = buf.readUnsignedIntLE() / 3600000.0;
    double lon = buf.readUnsignedIntLE() / 3600000.0;

    position.setLatitude(BitUtil.check(flags, 2) ? lat : -lat);
    position.setLongitude(BitUtil.check(flags, 3) ? lon : -lon);

    position.setSpeed(UnitsConverter.knotsFromCps(buf.readUnsignedShortLE()));
    position.setCourse(buf.readUnsignedShortLE() * 0.1);
    position.setAltitude(buf.readShortLE() * 0.1);
}

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From source file:org.traccar.protocol.ProgressProtocolDecoder.java

License:Apache License

@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {

    ByteBuf buf = (ByteBuf) msg;
    int type = buf.readUnsignedShortLE();
    buf.readUnsignedShortLE(); // length

    if (type == MSG_IDENT || type == MSG_IDENT_FULL) {

        buf.readUnsignedIntLE(); // id
        int length = buf.readUnsignedShortLE();
        buf.skipBytes(length);/*from   www.  ja v  a 2  s .com*/
        length = buf.readUnsignedShortLE();
        buf.skipBytes(length);
        length = buf.readUnsignedShortLE();
        String imei = buf.readSlice(length).toString(StandardCharsets.US_ASCII);
        getDeviceSession(channel, remoteAddress, imei);

    } else if (type == MSG_POINT || type == MSG_ALARM || type == MSG_LOGMSG) {

        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
        if (deviceSession == null) {
            return null;
        }

        List<Position> positions = new LinkedList<>();

        int recordCount = 1;
        if (type == MSG_LOGMSG) {
            recordCount = buf.readUnsignedShortLE();
        }

        for (int j = 0; j < recordCount; j++) {
            Position position = new Position(getProtocolName());
            position.setDeviceId(deviceSession.getDeviceId());

            if (type == MSG_LOGMSG) {
                position.set(Position.KEY_ARCHIVE, true);
                int subtype = buf.readUnsignedShortLE();
                if (subtype == MSG_ALARM) {
                    position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
                }
                if (buf.readUnsignedShortLE() > buf.readableBytes()) {
                    lastIndex += 1;
                    break; // workaround for device bug
                }
                lastIndex = buf.readUnsignedIntLE();
                position.set(Position.KEY_INDEX, lastIndex);
            } else {
                newIndex = buf.readUnsignedIntLE();
            }

            position.setTime(new Date(buf.readUnsignedIntLE() * 1000));
            position.setLatitude(buf.readIntLE() * 180.0 / 0x7FFFFFFF);
            position.setLongitude(buf.readIntLE() * 180.0 / 0x7FFFFFFF);
            position.setSpeed(buf.readUnsignedIntLE() * 0.01);
            position.setCourse(buf.readUnsignedShortLE() * 0.01);
            position.setAltitude(buf.readUnsignedShortLE() * 0.01);

            int satellites = buf.readUnsignedByte();
            position.setValid(satellites >= 3);
            position.set(Position.KEY_SATELLITES, satellites);

            position.set(Position.KEY_RSSI, buf.readUnsignedByte());
            position.set(Position.KEY_ODOMETER, buf.readUnsignedIntLE());

            long extraFlags = buf.readLongLE();

            if (BitUtil.check(extraFlags, 0)) {
                int count = buf.readUnsignedShortLE();
                for (int i = 1; i <= count; i++) {
                    position.set(Position.PREFIX_ADC + i, buf.readUnsignedShortLE());
                }
            }

            if (BitUtil.check(extraFlags, 1)) {
                int size = buf.readUnsignedShortLE();
                position.set("can", buf.toString(buf.readerIndex(), size, StandardCharsets.US_ASCII));
                buf.skipBytes(size);
            }

            if (BitUtil.check(extraFlags, 2)) {
                position.set("passenger", ByteBufUtil.hexDump(buf.readSlice(buf.readUnsignedShortLE())));
            }

            if (type == MSG_ALARM) {
                position.set(Position.KEY_ALARM, true);
                byte[] response = { (byte) 0xC9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
                channel.writeAndFlush(new NetworkMessage(Unpooled.wrappedBuffer(response), remoteAddress));
            }

            buf.readUnsignedIntLE(); // crc

            positions.add(position);
        }

        requestArchive(channel);

        return positions;
    }

    return null;
}

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From source file:org.traccar.protocol.RecodaProtocolDecoder.java

License:Apache License

@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {

    ByteBuf buf = (ByteBuf) msg;

    int type = buf.readIntLE();
    buf.readUnsignedIntLE(); // length

    if (type != MSG_HEARTBEAT) {
        buf.readUnsignedShortLE(); // version
        buf.readUnsignedShortLE(); // index
    }//w  ww .j  a  v  a  2  s  .  co m

    if (type == MSG_SIGNAL_LINK_REGISTRATION) {

        getDeviceSession(channel, remoteAddress, buf.readSlice(12).toString(StandardCharsets.US_ASCII));

    } else if (type == MSG_GPS_DATA) {

        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
        if (deviceSession == null) {
            return null;
        }

        Position position = new Position(getProtocolName());
        position.setDeviceId(deviceSession.getDeviceId());

        position.setTime(new Date(buf.readLongLE()));

        int flags = buf.readUnsignedByte();

        if (BitUtil.check(flags, 0)) {

            buf.readUnsignedShortLE(); // declination

            position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShortLE()));

            position.setLongitude(buf.readUnsignedByte() + buf.readUnsignedByte() / 60.0);
            position.setLatitude(buf.readUnsignedByte() + buf.readUnsignedByte() / 60.0);

            position.setLongitude(position.getLongitude() + buf.readUnsignedIntLE() / 3600.0);
            position.setLatitude(position.getLatitude() + buf.readUnsignedIntLE() / 3600.0);

            int status = buf.readUnsignedByte();

            position.setValid(BitUtil.check(status, 0));
            if (BitUtil.check(status, 1)) {
                position.setLongitude(-position.getLongitude());
            }
            if (!BitUtil.check(status, 2)) {
                position.setLatitude(-position.getLatitude());
            }

        } else {

            getLastLocation(position, position.getDeviceTime());

        }

        return position;

    }

    return null;
}

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From source file:org.traccar.protocol.RitiProtocolDecoder.java

License:Apache License

@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {

    ByteBuf buf = (ByteBuf) msg;

    buf.skipBytes(2); // header

    Position position = new Position(getProtocolName());

    DeviceSession deviceSession = getDeviceSession(channel, remoteAddress,
            String.valueOf(buf.readUnsignedShort()));
    if (deviceSession == null) {
        return null;
    }/*from  www. j  a v  a2  s .c o m*/
    position.setDeviceId(deviceSession.getDeviceId());

    position.set("mode", buf.readUnsignedByte());
    position.set(Position.KEY_COMMAND, buf.readUnsignedByte());
    position.set(Position.KEY_POWER, buf.readUnsignedShortLE() * 0.001);

    buf.skipBytes(5); // status
    buf.readUnsignedShortLE(); // idleCount
    buf.readUnsignedShortLE(); // idleTime in seconds

    position.set(Position.KEY_DISTANCE, buf.readUnsignedIntLE());
    position.set(Position.KEY_ODOMETER_TRIP, buf.readUnsignedIntLE());

    // Parse GPRMC
    int end = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) '*');
    String gprmc = buf.toString(buf.readerIndex(), end - buf.readerIndex(), StandardCharsets.US_ASCII);
    Parser parser = new Parser(PATTERN, gprmc);
    if (!parser.matches()) {
        return null;
    }

    DateBuilder dateBuilder = new DateBuilder().setTime(parser.nextInt(0), parser.nextInt(0),
            parser.nextInt(0));

    position.setValid(parser.next().equals("A"));
    position.setLatitude(parser.nextCoordinate());
    position.setLongitude(parser.nextCoordinate());
    position.setSpeed(parser.nextDouble(0));
    position.setCourse(parser.nextDouble(0));

    dateBuilder.setDateReverse(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0));
    position.setTime(dateBuilder.getDate());

    return position;
}

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From source file:org.traccar.protocol.RoboTrackProtocolDecoder.java

License:Apache License

@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {

    ByteBuf buf = (ByteBuf) msg;

    int type = buf.readUnsignedByte();

    if (type == MSG_ID) {

        buf.skipBytes(16); // name

        String imei = buf.readSlice(15).toString(StandardCharsets.US_ASCII);

        if (getDeviceSession(channel, remoteAddress, imei) != null && channel != null) {
            ByteBuf response = Unpooled.buffer();
            response.writeByte(MSG_ACK);
            response.writeByte(0x01); // success
            response.writeByte(0x66); // checksum
            channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
        }/*from  w  w  w  . ja  v a  2  s  .c o m*/

    } else if (type == MSG_GPS || type == MSG_GSM) {

        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
        if (deviceSession == null) {
            return null;
        }

        Position position = new Position(getProtocolName());
        position.setDeviceId(deviceSession.getDeviceId());

        position.setDeviceTime(new Date(buf.readUnsignedIntLE() * 1000));

        if (type == MSG_GPS) {

            position.setValid(true);
            position.setFixTime(position.getDeviceTime());
            position.setLatitude(buf.readIntLE() * 0.000001);
            position.setLongitude(buf.readIntLE() * 0.000001);
            position.setSpeed(UnitsConverter.knotsFromKph(buf.readByte()));

        } else {

            getLastLocation(position, position.getDeviceTime());

            position.setNetwork(new Network(CellTower.from(buf.readUnsignedShortLE(), buf.readUnsignedShortLE(),
                    buf.readUnsignedShortLE(), buf.readUnsignedShortLE())));

            buf.readUnsignedByte(); // reserved

        }

        int value = buf.readUnsignedByte();

        position.set(Position.KEY_SATELLITES, BitUtil.to(value, 4));
        position.set(Position.KEY_RSSI, BitUtil.between(value, 4, 7));
        position.set(Position.KEY_MOTION, BitUtil.check(value, 7));

        value = buf.readUnsignedByte();

        position.set(Position.KEY_CHARGE, BitUtil.check(value, 0));

        for (int i = 1; i <= 4; i++) {
            position.set(Position.PREFIX_IN + i, BitUtil.check(value, i));
        }

        position.set(Position.KEY_BATTERY_LEVEL, BitUtil.from(value, 5) * 100 / 7);
        position.set(Position.KEY_DEVICE_TEMP, buf.readByte());

        for (int i = 1; i <= 3; i++) {
            position.set(Position.PREFIX_ADC + i, buf.readUnsignedShortLE());
        }

        return position;

    }

    return null;
}

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From source file:org.traccar.protocol.SanulProtocolDecoder.java

License:Apache License

@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {

    ByteBuf buf = (ByteBuf) msg;

    buf.readUnsignedByte(); // header
    buf.readUnsignedShortLE(); // reserved
    buf.readUnsignedShortLE(); // length
    buf.readUnsignedByte(); // edition

    int type = buf.readUnsignedShortLE();

    buf.readUnsignedIntLE(); // command id

    sendResponse(channel, type);//from   w w  w  .  ja v a2s .  c om

    if (type == MSG_LOGIN) {

        getDeviceSession(channel, remoteAddress, buf.toString(StandardCharsets.US_ASCII).trim());

    } else if (type == MSG_LOCATION) {

        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
        if (deviceSession == null) {
            return null;
        }

        Position position = new Position(getProtocolName());
        position.setDeviceId(deviceSession.getDeviceId());

        getLastLocation(position, null);

        return position;

    }

    return null;
}

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From source file:org.traccar.protocol.SatsolProtocolDecoder.java

License:Apache License

@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {

    ByteBuf buf = (ByteBuf) msg;

    buf.readUnsignedShortLE(); // checksum
    buf.readUnsignedShortLE(); // preamble
    long id = buf.readUnsignedIntLE();
    buf.readUnsignedShortLE(); // length

    DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, String.valueOf(id));
    if (deviceSession == null) {
        return null;
    }/*  ww w .j  a  v a 2s . c  o m*/

    List<Position> positions = new LinkedList<>();

    while (buf.isReadable()) {

        buf.readUnsignedShortLE(); // checksum
        buf.readUnsignedShortLE(); // checksum
        buf.readUnsignedShortLE(); // type
        int length = buf.readUnsignedShortLE();

        Position position = new Position(getProtocolName());
        position.setDeviceId(deviceSession.getDeviceId());

        position.setTime(new Date(buf.readUnsignedIntLE() * 1000));
        position.setLatitude(buf.readUnsignedIntLE() * 0.000001);
        position.setLongitude(buf.readUnsignedIntLE() * 0.000001);
        position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShortLE() * 0.01));
        position.setAltitude(buf.readShortLE());
        position.setCourse(buf.readUnsignedShortLE());
        position.setValid(buf.readUnsignedByte() > 0);

        position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
        position.set(Position.KEY_EVENT, buf.readUnsignedByte());

        if (BitUtil.check(buf.readUnsignedByte(), 0)) {
            position.set(Position.KEY_ARCHIVE, true);
        }

        positions.add(position);

        buf.skipBytes(length);

    }

    if (channel != null) {
        ByteBuf response = Unpooled.buffer();
        response.writeShortLE(0);
        response.writeShortLE(0x4CBF); // preamble
        response.writeIntLE((int) id);
        response.writeShortLE(0);
        response.setShortLE(0, Checksum.crc16(Checksum.CRC16_CCITT_FALSE,
                response.nioBuffer(2, response.readableBytes() - 2)));
        channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
    }

    return positions;
}

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From source file:org.traccar.protocol.TelicFrameDecoder.java

License:Apache License

@Override
protected Object decode(ChannelHandlerContext ctx, Channel channel, ByteBuf buf) throws Exception {

    if (buf.readableBytes() < 4) {
        return null;
    }//w w  w.j  a v a  2s  .  c o  m

    long length = buf.getUnsignedIntLE(buf.readerIndex());

    if (length < 1024) {
        if (buf.readableBytes() >= length + 4) {
            buf.readUnsignedIntLE();
            return buf.readRetainedSlice((int) length);
        }
    } else {
        int endIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 0);
        if (endIndex >= 0) {
            ByteBuf frame = buf.readRetainedSlice(endIndex - buf.readerIndex());
            buf.readByte();
            if (frame.readableBytes() > 0) {
                return frame;
            }
        }
    }

    return null;
}

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From source file:org.traccar.protocol.TramigoProtocolDecoder.java

License:Apache License

@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {

    ByteBuf buf = (ByteBuf) msg;

    int protocol = buf.readUnsignedByte();
    boolean legacy = protocol == 0x80;

    buf.readUnsignedByte(); // version id
    int index = legacy ? buf.readUnsignedShort() : buf.readUnsignedShortLE();
    int type = legacy ? buf.readUnsignedShort() : buf.readUnsignedShortLE();
    buf.readUnsignedShort(); // length
    buf.readUnsignedShort(); // mask
    buf.readUnsignedShort(); // checksum
    long id = legacy ? buf.readUnsignedInt() : buf.readUnsignedIntLE();
    buf.readUnsignedInt(); // time

    Position position = new Position(getProtocolName());
    position.set(Position.KEY_INDEX, index);
    position.setValid(true);/*from  w  ww .j  av a 2  s  . c o m*/

    DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, String.valueOf(id));
    if (deviceSession == null) {
        return null;
    }
    position.setDeviceId(deviceSession.getDeviceId());

    if (protocol == 0x01 && (type == MSG_COMPACT || type == MSG_FULL)) {

        // need to send ack?

        buf.readUnsignedShortLE(); // report trigger
        buf.readUnsignedShortLE(); // state flag

        position.setLatitude(buf.readUnsignedIntLE() * 0.0000001);
        position.setLongitude(buf.readUnsignedIntLE() * 0.0000001);

        position.set(Position.KEY_RSSI, buf.readUnsignedShortLE());
        position.set(Position.KEY_SATELLITES, buf.readUnsignedShortLE());
        position.set(Position.KEY_SATELLITES_VISIBLE, buf.readUnsignedShortLE());
        position.set("gpsAntennaStatus", buf.readUnsignedShortLE());

        position.setSpeed(buf.readUnsignedShortLE() * 0.194384);
        position.setCourse(buf.readUnsignedShortLE());

        position.set(Position.KEY_ODOMETER, buf.readUnsignedIntLE());

        position.set(Position.KEY_BATTERY, buf.readUnsignedShortLE());

        position.set(Position.KEY_CHARGE, buf.readUnsignedShortLE());

        position.setTime(new Date(buf.readUnsignedIntLE() * 1000));

        // parse other data

        return position;

    } else if (legacy) {

        if (channel != null) {
            channel.writeAndFlush(new NetworkMessage(
                    Unpooled.copiedBuffer("gprs,ack," + index, StandardCharsets.US_ASCII), remoteAddress));
        }

        String sentence = buf.toString(StandardCharsets.US_ASCII);

        Pattern pattern = Pattern.compile("(-?\\d+\\.\\d+), (-?\\d+\\.\\d+)");
        Matcher matcher = pattern.matcher(sentence);
        if (!matcher.find()) {
            return null;
        }
        position.setLatitude(Double.parseDouble(matcher.group(1)));
        position.setLongitude(Double.parseDouble(matcher.group(2)));

        pattern = Pattern.compile("([NSWE]{1,2}) with speed (\\d+) km/h");
        matcher = pattern.matcher(sentence);
        if (matcher.find()) {
            for (int i = 0; i < DIRECTIONS.length; i++) {
                if (matcher.group(1).equals(DIRECTIONS[i])) {
                    position.setCourse(i * 45.0);
                    break;
                }
            }
            position.setSpeed(UnitsConverter.knotsFromKph(Double.parseDouble(matcher.group(2))));
        }

        pattern = Pattern.compile("(\\d{1,2}:\\d{2}(:\\d{2})? \\w{3} \\d{1,2})");
        matcher = pattern.matcher(sentence);
        if (!matcher.find()) {
            return null;
        }
        DateFormat dateFormat = new SimpleDateFormat(
                matcher.group(2) != null ? "HH:mm:ss MMM d yyyy" : "HH:mm MMM d yyyy", Locale.ENGLISH);
        position.setTime(DateUtil.correctYear(
                dateFormat.parse(matcher.group(1) + " " + Calendar.getInstance().get(Calendar.YEAR))));

        if (sentence.contains("Ignition on detected")) {
            position.set(Position.KEY_IGNITION, true);
        } else if (sentence.contains("Ignition off detected")) {
            position.set(Position.KEY_IGNITION, false);
        }

        return position;

    }

    return null;
}

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