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

Example 81 with DeviceSession

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

the class OrionProtocolDecoder method decode.

@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
    ChannelBuffer buf = (ChannelBuffer) msg;
    // header
    buf.skipBytes(2);
    int type = buf.readUnsignedByte() & 0x0f;
    if (type == MSG_USERLOG) {
        int header = buf.readUnsignedByte();
        if ((header & 0x40) != 0) {
            sendResponse(channel, buf);
        }
        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, String.valueOf(buf.readUnsignedInt()));
        if (deviceSession == null) {
            return null;
        }
        List<Position> positions = new LinkedList<>();
        for (int i = 0; i < (header & 0x0f); i++) {
            Position position = new Position(getProtocolName());
            position.setDeviceId(deviceSession.getDeviceId());
            position.set(Position.KEY_EVENT, buf.readUnsignedByte());
            // length
            buf.readUnsignedByte();
            position.set(Position.KEY_FLAGS, buf.readUnsignedShort());
            position.setLatitude(convertCoordinate(buf.readInt()));
            position.setLongitude(convertCoordinate(buf.readInt()));
            position.setAltitude(buf.readShort() / 10.0);
            position.setCourse(buf.readUnsignedShort());
            position.setSpeed(buf.readUnsignedShort() * 0.0539957);
            DateBuilder dateBuilder = new DateBuilder().setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte()).setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
            position.setTime(dateBuilder.getDate());
            int satellites = buf.readUnsignedByte();
            position.setValid(satellites >= 3);
            position.set(Position.KEY_SATELLITES, satellites);
            positions.add(position);
        }
        return positions;
    }
    return null;
}

Example 82 with DeviceSession

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

the class PretraceProtocolDecoder method decode.

@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
    Parser parser = new Parser(PATTERN, (String) msg);
    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());
    position.setValid(parser.next().equals("A"));
    position.setTime(parser.nextDateTime());
    position.setLatitude(parser.nextCoordinate());
    position.setLongitude(parser.nextCoordinate());
    position.setSpeed(UnitsConverter.knotsFromKph(parser.nextInt(0)));
    position.setCourse(parser.nextInt(0));
    position.setAltitude(parser.nextHexInt(0));
    position.set(Position.KEY_ODOMETER, parser.nextHexInt(0));
    position.set(Position.KEY_SATELLITES, parser.nextHexInt(0));
    position.set(Position.KEY_HDOP, parser.nextInt(0));
    position.set(Position.KEY_RSSI, parser.nextInt(0));
    return position;
}

Example 83 with DeviceSession

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

the class NavisProtocolDecoder method decode.

@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
    ChannelBuffer buf = (ChannelBuffer) msg;
    prefix = buf.toString(buf.readerIndex(), 4, StandardCharsets.US_ASCII);
    // prefix @NTC by default
    buf.skipBytes(prefix.length());
    serverId = buf.readUnsignedInt();
    deviceUniqueId = buf.readUnsignedInt();
    int length = buf.readUnsignedShort();
    // header and data XOR checksum
    buf.skipBytes(2);
    if (length == 0) {
        // keep alive message
        return null;
    }
    String type = buf.toString(buf.readerIndex(), 3, StandardCharsets.US_ASCII);
    buf.skipBytes(type.length());
    if (type.equals("*>S")) {
        return processHandshake(channel, remoteAddress, buf);
    } else {
        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
        if (deviceSession != null) {
            if (type.equals("*>T")) {
                return processSingle(deviceSession, channel, buf);
            } else if (type.equals("*>A")) {
                return processArray(deviceSession, channel, buf);
            }
        }
    }
    return null;
}

Example 84 with DeviceSession

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

the class NoranProtocolDecoder method decode.

@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
    ChannelBuffer buf = (ChannelBuffer) msg;
    // length
    buf.readUnsignedShort();
    int type = buf.readUnsignedShort();
    if (type == MSG_SHAKE_HAND && channel != null) {
        ChannelBuffer response = ChannelBuffers.dynamicBuffer(ByteOrder.LITTLE_ENDIAN, 13);
        response.writeBytes(ChannelBuffers.copiedBuffer(ByteOrder.LITTLE_ENDIAN, "\r\n*KW", StandardCharsets.US_ASCII));
        response.writeByte(0);
        response.writeShort(response.capacity());
        response.writeShort(MSG_SHAKE_HAND_RESPONSE);
        // status
        response.writeByte(1);
        response.writeBytes(ChannelBuffers.copiedBuffer(ByteOrder.LITTLE_ENDIAN, "\r\n", StandardCharsets.US_ASCII));
        channel.write(response, remoteAddress);
    } else if (type == MSG_UPLOAD_POSITION || type == MSG_UPLOAD_POSITION_NEW || type == MSG_CONTROL_RESPONSE || type == MSG_ALARM) {
        boolean newFormat = false;
        if (type == MSG_UPLOAD_POSITION && buf.readableBytes() == 48 || type == MSG_ALARM && buf.readableBytes() == 48 || type == MSG_CONTROL_RESPONSE && buf.readableBytes() == 57) {
            newFormat = true;
        }
        Position position = new Position(getProtocolName());
        if (type == MSG_CONTROL_RESPONSE) {
            // GIS ip
            buf.readUnsignedInt();
            // GIS port
            buf.readUnsignedInt();
        }
        position.setValid(BitUtil.check(buf.readUnsignedByte(), 0));
        short alarm = buf.readUnsignedByte();
        switch(alarm) {
            case 1:
                position.set(Position.KEY_ALARM, Position.ALARM_SOS);
                break;
            case 2:
                position.set(Position.KEY_ALARM, Position.ALARM_OVERSPEED);
                break;
            case 3:
                position.set(Position.KEY_ALARM, Position.ALARM_GEOFENCE_EXIT);
                break;
            case 9:
                position.set(Position.KEY_ALARM, Position.ALARM_POWER_OFF);
                break;
            default:
                break;
        }
        if (newFormat) {
            position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedInt()));
            position.setCourse(buf.readFloat());
        } else {
            position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte()));
            position.setCourse(buf.readUnsignedShort());
        }
        position.setLongitude(buf.readFloat());
        position.setLatitude(buf.readFloat());
        if (!newFormat) {
            long timeValue = buf.readUnsignedInt();
            DateBuilder dateBuilder = new DateBuilder().setYear((int) BitUtil.from(timeValue, 26)).setMonth((int) BitUtil.between(timeValue, 22, 26)).setDay((int) BitUtil.between(timeValue, 17, 22)).setHour((int) BitUtil.between(timeValue, 12, 17)).setMinute((int) BitUtil.between(timeValue, 6, 12)).setSecond((int) BitUtil.to(timeValue, 6));
            position.setTime(dateBuilder.getDate());
        }
        ChannelBuffer rawId;
        if (newFormat) {
            rawId = buf.readBytes(12);
        } else {
            rawId = buf.readBytes(11);
        }
        String id = rawId.toString(StandardCharsets.US_ASCII).replaceAll("[^\\p{Print}]", "");
        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, id);
        if (deviceSession == null) {
            return null;
        }
        position.setDeviceId(deviceSession.getDeviceId());
        if (newFormat) {
            DateFormat dateFormat = new SimpleDateFormat("yy-MM-dd HH:mm:ss");
            position.setTime(dateFormat.parse(buf.readBytes(17).toString(StandardCharsets.US_ASCII)));
            buf.readByte();
        }
        if (!newFormat) {
            position.set(Position.PREFIX_IO + 1, buf.readUnsignedByte());
            position.set(Position.KEY_FUEL_LEVEL, buf.readUnsignedByte());
        } else if (type == MSG_UPLOAD_POSITION_NEW) {
            position.set(Position.PREFIX_TEMP + 1, buf.readShort());
            position.set(Position.KEY_ODOMETER, buf.readFloat());
        }
        return position;
    }
    return null;
}

Example 85 with DeviceSession

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

the class ObdDongleProtocolDecoder method decode.

@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
    ChannelBuffer buf = (ChannelBuffer) msg;
    // header
    buf.skipBytes(2);
    int index = buf.readUnsignedShort();
    String imei = buf.readBytes(15).toString(StandardCharsets.US_ASCII);
    DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
    if (deviceSession == null) {
        return null;
    }
    int type = buf.readUnsignedByte();
    // data length
    buf.readUnsignedShort();
    if (type == MSG_TYPE_CONNECT) {
        ChannelBuffer response = ChannelBuffers.dynamicBuffer();
        response.writeByte(1);
        response.writeShort(0);
        response.writeInt(0);
        sendResponse(channel, MSG_TYPE_CONNACK, index, imei, response);
    } else if (type == MSG_TYPE_PUBLISH) {
        int typeMajor = buf.readUnsignedByte();
        int typeMinor = buf.readUnsignedByte();
        // event id
        buf.readUnsignedByte();
        Position position = new Position(getProtocolName());
        position.setDeviceId(deviceSession.getDeviceId());
        position.setTime(new Date(buf.readUnsignedInt() * 1000));
        int flags = buf.readUnsignedByte();
        position.setValid(!BitUtil.check(flags, 6));
        position.set(Position.KEY_SATELLITES, BitUtil.to(flags, 4));
        double longitude = ((BitUtil.to(buf.readUnsignedShort(), 1) << 24) + buf.readUnsignedMedium()) * 0.00001;
        position.setLongitude(BitUtil.check(flags, 5) ? longitude : -longitude);
        double latitude = buf.readUnsignedMedium() * 0.00001;
        position.setLatitude(BitUtil.check(flags, 4) ? latitude : -latitude);
        int speedCourse = buf.readUnsignedMedium();
        position.setSpeed(UnitsConverter.knotsFromMph(BitUtil.from(speedCourse, 10) * 0.1));
        position.setCourse(BitUtil.to(speedCourse, 10));
        ChannelBuffer response = ChannelBuffers.dynamicBuffer();
        response.writeByte(typeMajor);
        response.writeByte(typeMinor);
        sendResponse(channel, MSG_TYPE_PUBACK, index, imei, response);
        return position;
    }
    return null;
}