Convert project to gradle

1 files changed, 0 insertions, 929 deletions

diff --git a/src/org/traccar/protocol/Gt06ProtocolDecoder.java b/src/org/traccar/protocol/Gt06ProtocolDecoder.java
deleted file mode 100644
index 1f8fb66dd..000000000
--- a/src/org/traccar/protocol/Gt06ProtocolDecoder.java
+++ /dev/null
@@ -1,929 +0,0 @@
-/*
- * Copyright 2012 - 2019 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.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.protocol;
-
-import io.netty.buffer.ByteBuf;
-import io.netty.buffer.ByteBufUtil;
-import io.netty.buffer.Unpooled;
-import io.netty.channel.Channel;
-import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
-import org.traccar.NetworkMessage;
-import org.traccar.Protocol;
-import org.traccar.helper.BcdUtil;
-import org.traccar.helper.BitUtil;
-import org.traccar.helper.Checksum;
-import org.traccar.helper.DateBuilder;
-import org.traccar.helper.Parser;
-import org.traccar.helper.PatternBuilder;
-import org.traccar.helper.UnitsConverter;
-import org.traccar.model.CellTower;
-import org.traccar.model.Device;
-import org.traccar.model.Network;
-import org.traccar.model.Position;
-import org.traccar.model.WifiAccessPoint;
-
-import java.net.SocketAddress;
-import java.nio.charset.StandardCharsets;
-import java.util.Calendar;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.TimeZone;
-import java.util.regex.Pattern;
-
-public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
-
-    private final Map<Integer, ByteBuf> photos = new HashMap<>();
-
-    public Gt06ProtocolDecoder(Protocol protocol) {
-        super(protocol);
-    }
-
-    public static final int MSG_LOGIN = 0x01;
-    public static final int MSG_GPS = 0x10;
-    public static final int MSG_LBS = 0x11;
-    public static final int MSG_GPS_LBS_1 = 0x12;
-    public static final int MSG_GPS_LBS_2 = 0x22;
-    public static final int MSG_STATUS = 0x13;
-    public static final int MSG_SATELLITE = 0x14;
-    public static final int MSG_STRING = 0x15;
-    public static final int MSG_GPS_LBS_STATUS_1 = 0x16;
-    public static final int MSG_WIFI = 0x17;
-    public static final int MSG_GPS_LBS_STATUS_2 = 0x26;
-    public static final int MSG_GPS_LBS_STATUS_3 = 0x27;
-    public static final int MSG_LBS_MULTIPLE = 0x28;
-    public static final int MSG_LBS_WIFI = 0x2C;
-    public static final int MSG_LBS_EXTEND = 0x18;
-    public static final int MSG_LBS_STATUS = 0x19;
-    public static final int MSG_GPS_PHONE = 0x1A;
-    public static final int MSG_GPS_LBS_EXTEND = 0x1E;
-    public static final int MSG_HEARTBEAT = 0x23;
-    public static final int MSG_ADDRESS_REQUEST = 0x2A;
-    public static final int MSG_ADDRESS_RESPONSE = 0x97;
-    public static final int MSG_AZ735_GPS = 0x32;
-    public static final int MSG_AZ735_ALARM = 0x33;
-    public static final int MSG_X1_GPS = 0x34;
-    public static final int MSG_X1_PHOTO_INFO = 0x35;
-    public static final int MSG_X1_PHOTO_DATA = 0x36;
-    public static final int MSG_WIFI_2 = 0x69;
-    public static final int MSG_COMMAND_0 = 0x80;
-    public static final int MSG_COMMAND_1 = 0x81;
-    public static final int MSG_COMMAND_2 = 0x82;
-    public static final int MSG_TIME_REQUEST = 0x8A;
-    public static final int MSG_INFO = 0x94;
-    public static final int MSG_STRING_INFO = 0x21;
-    public static final int MSG_GPS_2 = 0xA0;
-    public static final int MSG_LBS_2 = 0xA1;
-    public static final int MSG_WIFI_3 = 0xA2;
-    public static final int MSG_FENCE_SINGLE = 0xA3;
-    public static final int MSG_FENCE_MULTI = 0xA4;
-    public static final int MSG_LBS_ALARM = 0xA5;
-    public static final int MSG_LBS_ADDRESS = 0xA7;
-    public static final int MSG_OBD = 0x8C;
-    public static final int MSG_DTC = 0x65;
-    public static final int MSG_PID = 0x66;
-
-    private static boolean isSupported(int type) {
-        return hasGps(type) || hasLbs(type) || hasStatus(type);
-    }
-
-    private static boolean hasGps(int type) {
-        switch (type) {
-            case MSG_GPS:
-            case MSG_GPS_LBS_1:
-            case MSG_GPS_LBS_2:
-            case MSG_GPS_LBS_STATUS_1:
-            case MSG_GPS_LBS_STATUS_2:
-            case MSG_GPS_LBS_STATUS_3:
-            case MSG_GPS_PHONE:
-            case MSG_GPS_LBS_EXTEND:
-            case MSG_GPS_2:
-            case MSG_FENCE_SINGLE:
-            case MSG_FENCE_MULTI:
-                return true;
-            default:
-                return false;
-        }
-    }
-
-    private static boolean hasLbs(int type) {
-        switch (type) {
-            case MSG_LBS:
-            case MSG_LBS_STATUS:
-            case MSG_GPS_LBS_1:
-            case MSG_GPS_LBS_2:
-            case MSG_GPS_LBS_STATUS_1:
-            case MSG_GPS_LBS_STATUS_2:
-            case MSG_GPS_LBS_STATUS_3:
-            case MSG_GPS_2:
-            case MSG_FENCE_SINGLE:
-            case MSG_FENCE_MULTI:
-            case MSG_LBS_ALARM:
-            case MSG_LBS_ADDRESS:
-                return true;
-            default:
-                return false;
-        }
-    }
-
-    private static boolean hasStatus(int type) {
-        switch (type) {
-            case MSG_STATUS:
-            case MSG_LBS_STATUS:
-            case MSG_GPS_LBS_STATUS_1:
-            case MSG_GPS_LBS_STATUS_2:
-            case MSG_GPS_LBS_STATUS_3:
-                return true;
-            default:
-                return false;
-        }
-    }
-
-    private static boolean hasLanguage(int type) {
-        switch (type) {
-            case MSG_GPS_PHONE:
-            case MSG_HEARTBEAT:
-            case MSG_GPS_LBS_STATUS_3:
-            case MSG_LBS_MULTIPLE:
-            case MSG_LBS_2:
-            case MSG_FENCE_MULTI:
-                return true;
-            default:
-                return false;
-        }
-    }
-
-    private void sendResponse(Channel channel, boolean extended, int type, int index, ByteBuf content) {
-        if (channel != null) {
-            ByteBuf response = Unpooled.buffer();
-            int length = 5 + (content != null ? content.readableBytes() : 0);
-            if (extended) {
-                response.writeShort(0x7979);
-                response.writeShort(length);
-            } else {
-                response.writeShort(0x7878);
-                response.writeByte(length);
-            }
-            response.writeByte(type);
-            if (content != null) {
-                response.writeBytes(content);
-                content.release();
-            }
-            response.writeShort(index);
-            response.writeShort(Checksum.crc16(Checksum.CRC16_X25,
-                    response.nioBuffer(2, response.writerIndex() - 2)));
-            response.writeByte('\r'); response.writeByte('\n'); // ending
-            channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress()));
-        }
-    }
-
-    private void sendPhotoRequest(Channel channel, int pictureId) {
-        ByteBuf photo = photos.get(pictureId);
-        ByteBuf content = Unpooled.buffer();
-        content.writeInt(pictureId);
-        content.writeInt(photo.writerIndex());
-        content.writeShort(Math.min(photo.writableBytes(), 1024));
-        sendResponse(channel, false, MSG_X1_PHOTO_DATA, 0, content);
-    }
-
-    private boolean decodeGps(Position position, ByteBuf buf, boolean hasLength, TimeZone timezone) {
-
-        DateBuilder dateBuilder = new DateBuilder(timezone)
-                .setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
-                .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
-        position.setTime(dateBuilder.getDate());
-
-        if (hasLength && buf.readUnsignedByte() == 0) {
-            return false;
-        }
-
-        position.set(Position.KEY_SATELLITES, BitUtil.to(buf.readUnsignedByte(), 4));
-
-        double latitude = buf.readUnsignedInt() / 60.0 / 30000.0;
-        double longitude = buf.readUnsignedInt() / 60.0 / 30000.0;
-        position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte()));
-
-        int flags = buf.readUnsignedShort();
-        position.setCourse(BitUtil.to(flags, 10));
-        position.setValid(BitUtil.check(flags, 12));
-
-        if (!BitUtil.check(flags, 10)) {
-            latitude = -latitude;
-        }
-        if (BitUtil.check(flags, 11)) {
-            longitude = -longitude;
-        }
-
-        position.setLatitude(latitude);
-        position.setLongitude(longitude);
-
-        if (BitUtil.check(flags, 14)) {
-            position.set(Position.KEY_IGNITION, BitUtil.check(flags, 15));
-        }
-
-        return true;
-    }
-
-    private boolean decodeLbs(Position position, ByteBuf buf, boolean hasLength) {
-
-        int length = 0;
-        if (hasLength) {
-            length = buf.readUnsignedByte();
-            if (length == 0) {
-                return false;
-            }
-        }
-
-        int mcc = buf.readUnsignedShort();
-        int mnc = BitUtil.check(mcc, 15) ? buf.readUnsignedShort() : buf.readUnsignedByte();
-
-        position.setNetwork(new Network(CellTower.from(
-                BitUtil.to(mcc, 15), mnc, buf.readUnsignedShort(), buf.readUnsignedMedium())));
-
-        if (length > 9) {
-            buf.skipBytes(length - 9);
-        }
-
-        return true;
-    }
-
-    private boolean decodeStatus(Position position, ByteBuf buf) {
-
-        int status = buf.readUnsignedByte();
-
-        position.set(Position.KEY_STATUS, status);
-        position.set(Position.KEY_IGNITION, BitUtil.check(status, 1));
-        position.set(Position.KEY_CHARGE, BitUtil.check(status, 2));
-        position.set(Position.KEY_BLOCKED, BitUtil.check(status, 7));
-
-        switch (BitUtil.between(status, 3, 6)) {
-            case 1:
-                position.set(Position.KEY_ALARM, Position.ALARM_SHOCK);
-                break;
-            case 2:
-                position.set(Position.KEY_ALARM, Position.ALARM_POWER_CUT);
-                break;
-            case 3:
-                position.set(Position.KEY_ALARM, Position.ALARM_LOW_BATTERY);
-                break;
-            case 4:
-                position.set(Position.KEY_ALARM, Position.ALARM_SOS);
-                break;
-            case 7:
-                position.set(Position.KEY_ALARM, Position.ALARM_REMOVING);
-                break;
-            default:
-                break;
-        }
-
-        position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte() * 100 / 6);
-        position.set(Position.KEY_RSSI, buf.readUnsignedByte());
-        position.set(Position.KEY_ALARM, decodeAlarm(buf.readUnsignedByte()));
-
-        return true;
-    }
-
-    private String decodeAlarm(short value) {
-        switch (value) {
-            case 0x01:
-                return Position.ALARM_SOS;
-            case 0x02:
-                return Position.ALARM_POWER_CUT;
-            case 0x03:
-            case 0x09:
-                return Position.ALARM_VIBRATION;
-            case 0x04:
-                return Position.ALARM_GEOFENCE_ENTER;
-            case 0x05:
-                return Position.ALARM_GEOFENCE_EXIT;
-            case 0x06:
-                return Position.ALARM_OVERSPEED;
-            case 0x0E:
-            case 0x0F:
-                return Position.ALARM_LOW_BATTERY;
-            case 0x11:
-                return Position.ALARM_POWER_OFF;
-            case 0x13:
-                return Position.ALARM_TAMPERING;
-            case 0x14:
-                return Position.ALARM_DOOR;
-            case 0x29:
-                return Position.ALARM_ACCELERATION;
-            case 0x30:
-                return Position.ALARM_BRAKING;
-            case 0x2A:
-            case 0x2B:
-                return Position.ALARM_CORNERING;
-            case 0x2C:
-                return Position.ALARM_ACCIDENT;
-            case 0x23:
-                return Position.ALARM_FALL_DOWN;
-            default:
-                return null;
-        }
-    }
-
-    private static final Pattern PATTERN_FUEL = new PatternBuilder()
-            .text("!AIOIL,")
-            .number("d+,")                       // device address
-            .number("d+.d+,")                    // output value
-            .number("(d+.d+),")                  // temperature
-            .expression("[^,]+,")                // version
-            .number("dd")                        // back wave
-            .number("d")                         // software status code
-            .number("d,")                        // hardware status code
-            .number("(d+.d+),")                  // measured value
-            .expression("[01],")                 // movement status
-            .number("d+,")                       // excited wave times
-            .number("xx")                        // checksum
-            .compile();
-
-    private Position decodeFuelData(Position position, String sentence) {
-        Parser parser = new Parser(PATTERN_FUEL, sentence);
-        if (!parser.matches()) {
-            return null;
-        }
-
-        position.set(Position.PREFIX_TEMP + 1, parser.nextDouble(0));
-        position.set(Position.KEY_FUEL_LEVEL, parser.nextDouble(0));
-
-        return position;
-    }
-
-    private static final Pattern PATTERN_LOCATION = new PatternBuilder()
-            .text("Current position!")
-            .number("Lat:([NS])(d+.d+),")        // latitude
-            .number("Lon:([EW])(d+.d+),")        // longitude
-            .text("Course:").number("(d+.d+),")  // course
-            .text("Speed:").number("(d+.d+),")   // speed
-            .text("DateTime:")
-            .number("(dddd)-(dd)-(dd) +")        // date
-            .number("(dd):(dd):(dd)")            // time
-            .compile();
-
-    private Position decodeLocationString(Position position, String sentence) {
-        Parser parser = new Parser(PATTERN_LOCATION, sentence);
-        if (!parser.matches()) {
-            return null;
-        }
-
-        position.setValid(true);
-        position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG));
-        position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG));
-        position.setCourse(parser.nextDouble());
-        position.setSpeed(parser.nextDouble());
-        position.setTime(parser.nextDateTime(Parser.DateTimeFormat.YMD_HMS));
-
-        return position;
-    }
-
-    private Object decodeBasic(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
-
-        int length = buf.readUnsignedByte();
-        int dataLength = length - 5;
-        int type = buf.readUnsignedByte();
-
-        DeviceSession deviceSession = null;
-        if (type != MSG_LOGIN) {
-            deviceSession = getDeviceSession(channel, remoteAddress);
-            if (deviceSession == null) {
-                return null;
-            }
-            if (deviceSession.getTimeZone() == null) {
-                deviceSession.setTimeZone(getTimeZone(deviceSession.getDeviceId()));
-            }
-        }
-
-        if (type == MSG_LOGIN) {
-
-            String imei = ByteBufUtil.hexDump(buf.readSlice(8)).substring(1);
-            buf.readUnsignedShort(); // type
-
-            deviceSession = getDeviceSession(channel, remoteAddress, imei);
-            if (deviceSession != null && deviceSession.getTimeZone() == null) {
-                deviceSession.setTimeZone(getTimeZone(deviceSession.getDeviceId()));
-            }
-
-            if (dataLength > 10) {
-                int extensionBits = buf.readUnsignedShort();
-                int hours = (extensionBits >> 4) / 100;
-                int minutes = (extensionBits >> 4) % 100;
-                int offset = (hours * 60 + minutes) * 60;
-                if ((extensionBits & 0x8) != 0) {
-                    offset = -offset;
-                }
-                if (deviceSession != null) {
-                    TimeZone timeZone = deviceSession.getTimeZone();
-                    if (timeZone.getRawOffset() == 0) {
-                        timeZone.setRawOffset(offset * 1000);
-                        deviceSession.setTimeZone(timeZone);
-                    }
-                }
-
-            }
-
-            if (deviceSession != null) {
-                sendResponse(channel, false, type, buf.getShort(buf.writerIndex() - 6), null);
-            }
-
-        } else if (type == MSG_HEARTBEAT) {
-
-            Position position = new Position(getProtocolName());
-            position.setDeviceId(deviceSession.getDeviceId());
-
-            getLastLocation(position, null);
-
-            int status = buf.readUnsignedByte();
-            position.set(Position.KEY_ARMED, BitUtil.check(status, 0));
-            position.set(Position.KEY_IGNITION, BitUtil.check(status, 1));
-            position.set(Position.KEY_CHARGE, BitUtil.check(status, 2));
-
-            if (buf.readableBytes() >= 2 + 6) {
-                position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.01);
-            }
-            if (buf.readableBytes() >= 1 + 6) {
-                position.set(Position.KEY_RSSI, buf.readUnsignedByte());
-            }
-
-            sendResponse(channel, false, type, buf.getShort(buf.writerIndex() - 6), null);
-
-            return position;
-
-        } else if (type == MSG_ADDRESS_REQUEST) {
-
-            String response = "NA&&NA&&0##";
-            ByteBuf content = Unpooled.buffer();
-            content.writeByte(response.length());
-            content.writeInt(0);
-            content.writeBytes(response.getBytes(StandardCharsets.US_ASCII));
-            sendResponse(channel, true, MSG_ADDRESS_RESPONSE, 0, content);
-
-        } else if (type == MSG_TIME_REQUEST) {
-
-            Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
-            ByteBuf content = Unpooled.buffer();
-            content.writeByte(calendar.get(Calendar.YEAR) - 2000);
-            content.writeByte(calendar.get(Calendar.MONTH) + 1);
-            content.writeByte(calendar.get(Calendar.DAY_OF_MONTH));
-            content.writeByte(calendar.get(Calendar.HOUR_OF_DAY));
-            content.writeByte(calendar.get(Calendar.MINUTE));
-            content.writeByte(calendar.get(Calendar.SECOND));
-            sendResponse(channel, false, MSG_TIME_REQUEST, 0, content);
-
-        } else if (type == MSG_X1_GPS || type == MSG_X1_PHOTO_INFO) {
-
-            return decodeX1(channel, buf, deviceSession, type);
-
-        } else if (type == MSG_WIFI || type == MSG_WIFI_2) {
-
-            return decodeWifi(channel, buf, deviceSession, type);
-
-        } else if (type == MSG_INFO) {
-
-            Position position = new Position(getProtocolName());
-            position.setDeviceId(deviceSession.getDeviceId());
-
-            getLastLocation(position, null);
-
-            position.set(Position.KEY_POWER, buf.readShort() * 0.01);
-
-            return position;
-
-        } else {
-
-            return decodeBasicOther(channel, buf, deviceSession, type, dataLength);
-
-        }
-
-        return null;
-    }
-
-    private Object decodeX1(Channel channel, ByteBuf buf, DeviceSession deviceSession, int type) {
-
-        if (type == MSG_X1_GPS) {
-
-            Position position = new Position(getProtocolName());
-            position.setDeviceId(deviceSession.getDeviceId());
-
-            buf.readUnsignedInt(); // data and alarm
-
-            decodeGps(position, buf, false, deviceSession.getTimeZone());
-
-            buf.readUnsignedShort(); // terminal info
-
-            position.set(Position.KEY_ODOMETER, buf.readUnsignedInt());
-
-            position.setNetwork(new Network(CellTower.from(
-                    buf.readUnsignedShort(), buf.readUnsignedByte(),
-                    buf.readUnsignedShort(), buf.readUnsignedInt())));
-
-            long driverId = buf.readUnsignedInt();
-            if (driverId > 0) {
-                position.set(Position.KEY_DRIVER_UNIQUE_ID, String.valueOf(driverId));
-            }
-
-            position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.01);
-            position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01);
-
-            return position;
-
-        } else if (type == MSG_X1_PHOTO_INFO) {
-
-            buf.skipBytes(6); // time
-            buf.readUnsignedByte(); // fix status
-            buf.readUnsignedInt(); // latitude
-            buf.readUnsignedInt(); // longitude
-            buf.readUnsignedByte(); // camera id
-            buf.readUnsignedByte(); // photo source
-            buf.readUnsignedByte(); // picture format
-
-            ByteBuf photo = Unpooled.buffer(buf.readInt());
-            int pictureId = buf.readInt();
-            photos.put(pictureId, photo);
-            sendPhotoRequest(channel, pictureId);
-
-        }
-
-        return null;
-    }
-
-    private Object decodeWifi(Channel channel, ByteBuf buf, DeviceSession deviceSession, int type) {
-
-        Position position = new Position(getProtocolName());
-        position.setDeviceId(deviceSession.getDeviceId());
-
-        ByteBuf time = buf.readSlice(6);
-        DateBuilder dateBuilder = new DateBuilder()
-                .setYear(BcdUtil.readInteger(time, 2))
-                .setMonth(BcdUtil.readInteger(time, 2))
-                .setDay(BcdUtil.readInteger(time, 2))
-                .setHour(BcdUtil.readInteger(time, 2))
-                .setMinute(BcdUtil.readInteger(time, 2))
-                .setSecond(BcdUtil.readInteger(time, 2));
-        getLastLocation(position, dateBuilder.getDate());
-
-        Network network = new Network();
-
-        int wifiCount = buf.getByte(2);
-        for (int i = 0; i < wifiCount; i++) {
-            String mac = String.format("%02x:%02x:%02x:%02x:%02x:%02x",
-                    buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte(),
-                    buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
-            network.addWifiAccessPoint(WifiAccessPoint.from(mac, buf.readUnsignedByte()));
-        }
-
-        int cellCount = buf.readUnsignedByte();
-        int mcc = buf.readUnsignedShort();
-        int mnc = buf.readUnsignedByte();
-        for (int i = 0; i < cellCount; i++) {
-            network.addCellTower(CellTower.from(
-                    mcc, mnc, buf.readUnsignedShort(), buf.readUnsignedShort(), buf.readUnsignedByte()));
-        }
-
-        position.setNetwork(network);
-
-        if (channel != null) {
-            ByteBuf response = Unpooled.buffer();
-            response.writeShort(0x7878);
-            response.writeByte(0);
-            response.writeByte(type);
-            response.writeBytes(time.resetReaderIndex());
-            response.writeByte('\r');
-            response.writeByte('\n');
-            channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress()));
-        }
-
-        return position;
-    }
-
-    private Object decodeBasicOther(Channel channel, ByteBuf buf,
-            DeviceSession deviceSession, int type, int dataLength) {
-
-        Position position = new Position(getProtocolName());
-        position.setDeviceId(deviceSession.getDeviceId());
-
-        if (type == MSG_LBS_MULTIPLE || type == MSG_LBS_EXTEND || type == MSG_LBS_WIFI
-                || type == MSG_LBS_2 || type == MSG_WIFI_3) {
-
-            boolean longFormat = type == MSG_LBS_2 || type == MSG_WIFI_3;
-
-            DateBuilder dateBuilder = new DateBuilder(deviceSession.getTimeZone())
-                    .setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
-                    .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
-
-            getLastLocation(position, dateBuilder.getDate());
-
-            int mcc = buf.readUnsignedShort();
-            int mnc = BitUtil.check(mcc, 15) ? buf.readUnsignedShort() : buf.readUnsignedByte();
-            Network network = new Network();
-            for (int i = 0; i < 7; i++) {
-                int lac = longFormat ? buf.readInt() : buf.readUnsignedShort();
-                int cid = longFormat ? (int) buf.readLong() : buf.readUnsignedMedium();
-                int rssi = -buf.readUnsignedByte();
-                if (lac > 0) {
-                    network.addCellTower(CellTower.from(BitUtil.to(mcc, 15), mnc, lac, cid, rssi));
-                }
-            }
-
-            buf.readUnsignedByte(); // time leads
-
-            if (type != MSG_LBS_MULTIPLE && type != MSG_LBS_2) {
-                int wifiCount = buf.readUnsignedByte();
-                for (int i = 0; i < wifiCount; i++) {
-                    String mac = ByteBufUtil.hexDump(buf.readSlice(6)).replaceAll("(..)", "$1:");
-                    network.addWifiAccessPoint(WifiAccessPoint.from(
-                            mac.substring(0, mac.length() - 1), buf.readUnsignedByte()));
-                }
-            }
-
-            position.setNetwork(network);
-
-        } else if (type == MSG_STRING) {
-
-            getLastLocation(position, null);
-
-            int commandLength = buf.readUnsignedByte();
-
-            if (commandLength > 0) {
-                buf.readUnsignedByte(); // server flag (reserved)
-                position.set(Position.KEY_RESULT,
-                        buf.readSlice(commandLength - 1).toString(StandardCharsets.US_ASCII));
-            }
-
-        } else if (isSupported(type)) {
-
-            if (hasGps(type)) {
-                decodeGps(position, buf, false, deviceSession.getTimeZone());
-            } else {
-                getLastLocation(position, null);
-            }
-
-            if (hasLbs(type)) {
-                decodeLbs(position, buf, hasStatus(type));
-            }
-
-            if (hasStatus(type)) {
-                decodeStatus(position, buf);
-            }
-
-            if (type == MSG_GPS_LBS_1 && buf.readableBytes() == 2 + 6) {
-                int mask = buf.readUnsignedShort();
-                position.set(Position.KEY_IGNITION, BitUtil.check(mask, 8 + 7));
-                position.set(Position.PREFIX_IN + 2, BitUtil.check(mask, 8 + 6));
-                if (BitUtil.check(mask, 8 + 4)) {
-                    int value = BitUtil.to(mask, 8 + 1);
-                    if (BitUtil.check(mask, 8 + 1)) {
-                        value = -value;
-                    }
-                    position.set(Position.PREFIX_TEMP + 1, value);
-                } else {
-                    int value = BitUtil.to(mask, 8 + 2);
-                    if (BitUtil.check(mask, 8 + 5)) {
-                        position.set(Position.PREFIX_ADC + 1, value);
-                    } else {
-                        position.set(Position.PREFIX_ADC + 1, value * 0.1);
-                    }
-                }
-            }
-
-            if (type == MSG_GPS_LBS_1 && buf.readableBytes() == 4 + 6) {
-                position.set(Position.KEY_ODOMETER, buf.readUnsignedInt());
-            }
-
-            if (type == MSG_GPS_LBS_2 && buf.readableBytes() == 3 + 6) {
-                position.set(Position.KEY_IGNITION, buf.readUnsignedByte() > 0);
-                position.set(Position.KEY_EVENT, buf.readUnsignedByte()); // reason
-                position.set(Position.KEY_ARCHIVE, buf.readUnsignedByte() > 0);
-            }
-
-        } else {
-
-            if (dataLength > 0) {
-                buf.skipBytes(dataLength);
-            }
-            if (type != MSG_COMMAND_0 && type != MSG_COMMAND_1 && type != MSG_COMMAND_2) {
-                sendResponse(channel, false, type, buf.getShort(buf.writerIndex() - 6), null);
-            }
-            return null;
-
-        }
-
-        if (hasLanguage(type)) {
-            buf.readUnsignedShort();
-        }
-
-        if (type == MSG_GPS_LBS_STATUS_3 || type == MSG_FENCE_MULTI) {
-            position.set(Position.KEY_GEOFENCE, buf.readUnsignedByte());
-        }
-
-        sendResponse(channel, false, type, buf.getShort(buf.writerIndex() - 6), null);
-
-        return position;
-    }
-
-    private Object decodeExtended(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
-
-        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
-        if (deviceSession == null) {
-            return null;
-        }
-
-        if (deviceSession.getTimeZone() == null) {
-            deviceSession.setTimeZone(getTimeZone(deviceSession.getDeviceId()));
-        }
-
-        Position position = new Position(getProtocolName());
-        position.setDeviceId(deviceSession.getDeviceId());
-
-        buf.readUnsignedShort(); // length
-        int type = buf.readUnsignedByte();
-
-        if (type == MSG_STRING_INFO) {
-
-            buf.readUnsignedInt(); // server flag
-            String data;
-            if (buf.readUnsignedByte() == 1) {
-                data = buf.readSlice(buf.readableBytes() - 6).toString(StandardCharsets.US_ASCII);
-            } else {
-                data = buf.readSlice(buf.readableBytes() - 6).toString(StandardCharsets.UTF_16BE);
-            }
-
-            if (decodeLocationString(position, data) == null) {
-                getLastLocation(position, null);
-                position.set(Position.KEY_RESULT, data);
-            }
-
-            return position;
-
-        } else if (type == MSG_INFO) {
-
-            int subType = buf.readUnsignedByte();
-
-            getLastLocation(position, null);
-
-            if (subType == 0x00) {
-                position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01);
-                return position;
-            } else if (subType == 0x05) {
-                int flags = buf.readUnsignedByte();
-                position.set(Position.KEY_DOOR, BitUtil.check(flags, 0));
-                position.set(Position.PREFIX_IO + 1, BitUtil.check(flags, 2));
-                return position;
-            } else if (subType == 0x0a) {
-                buf.skipBytes(8); // imei
-                buf.skipBytes(8); // imsi
-                position.set("iccid", ByteBufUtil.hexDump(buf.readSlice(8)));
-                return position;
-            } else if (subType == 0x0d) {
-                if (buf.getByte(buf.readerIndex()) != '!') {
-                    buf.skipBytes(6);
-                }
-                return decodeFuelData(position, buf.toString(
-                        buf.readerIndex(), buf.readableBytes() - 4 - 2, StandardCharsets.US_ASCII));
-            }
-
-        } else if (type == MSG_X1_PHOTO_DATA) {
-
-            int pictureId = buf.readInt();
-
-            ByteBuf photo = photos.get(pictureId);
-
-            buf.readUnsignedInt(); // offset
-            buf.readBytes(photo, buf.readUnsignedShort());
-
-            if (photo.writableBytes() > 0) {
-                sendPhotoRequest(channel, pictureId);
-            } else {
-                Device device = Context.getDeviceManager().getById(deviceSession.getDeviceId());
-                position.set(
-                        Position.KEY_IMAGE, Context.getMediaManager().writeFile(device.getUniqueId(), photo, "jpg"));
-                photos.remove(pictureId).release();
-            }
-
-        } else if (type == MSG_AZ735_GPS || type == MSG_AZ735_ALARM) {
-
-            if (!decodeGps(position, buf, true, deviceSession.getTimeZone())) {
-                getLastLocation(position, position.getDeviceTime());
-            }
-
-            if (decodeLbs(position, buf, true)) {
-                position.set(Position.KEY_RSSI, buf.readUnsignedByte());
-            }
-
-            buf.skipBytes(buf.readUnsignedByte()); // additional cell towers
-            buf.skipBytes(buf.readUnsignedByte()); // wifi access point
-
-            int status = buf.readUnsignedByte();
-            position.set(Position.KEY_STATUS, status);
-
-            if (type == MSG_AZ735_ALARM) {
-                switch (status) {
-                    case 0xA0:
-                        position.set(Position.KEY_ARMED, true);
-                        break;
-                    case 0xA1:
-                        position.set(Position.KEY_ARMED, false);
-                        break;
-                    case 0xA2:
-                    case 0xA3:
-                        position.set(Position.KEY_ALARM, Position.ALARM_LOW_BATTERY);
-                        break;
-                    case 0xA4:
-                        position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
-                        break;
-                    case 0xA5:
-                        position.set(Position.KEY_ALARM, Position.ALARM_DOOR);
-                        break;
-                    default:
-                        break;
-                }
-            }
-
-            buf.skipBytes(buf.readUnsignedByte()); // reserved extension
-
-            sendResponse(channel, true, type, buf.getShort(buf.writerIndex() - 6), null);
-
-            return position;
-
-        } else if (type == MSG_OBD) {
-
-            DateBuilder dateBuilder = new DateBuilder(deviceSession.getTimeZone())
-                    .setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
-                    .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
-
-            getLastLocation(position, dateBuilder.getDate());
-
-            position.set(Position.KEY_IGNITION, buf.readUnsignedByte() > 0);
-
-            String data = buf.readCharSequence(buf.readableBytes() - 18, StandardCharsets.US_ASCII).toString();
-            for (String pair : data.split(",")) {
-                String[] values = pair.split("=");
-                switch (Integer.parseInt(values[0].substring(0, 2), 16)) {
-                    case 40:
-                        position.set(Position.KEY_ODOMETER, Integer.parseInt(values[1], 16) * 0.01);
-                        break;
-                    case 43:
-                        position.set(Position.KEY_FUEL_LEVEL, Integer.parseInt(values[1], 16) * 0.01);
-                        break;
-                    case 45:
-                        position.set(Position.KEY_COOLANT_TEMP, Integer.parseInt(values[1], 16) * 0.01);
-                        break;
-                    case 53:
-                        position.set(Position.KEY_OBD_SPEED, Integer.parseInt(values[1], 16) * 0.01);
-                        break;
-                    case 54:
-                        position.set(Position.KEY_RPM, Integer.parseInt(values[1], 16) * 0.01);
-                        break;
-                    case 71:
-                        position.set(Position.KEY_FUEL_USED, Integer.parseInt(values[1], 16) * 0.01);
-                        break;
-                    case 73:
-                        position.set(Position.KEY_HOURS, Integer.parseInt(values[1], 16) * 0.01);
-                        break;
-                    case 74:
-                        position.set(Position.KEY_VIN, values[1]);
-                        break;
-                    default:
-                        break;
-                }
-            }
-
-            return position;
-
-        }
-
-        return null;
-    }
-
-    @Override
-    protected Object decode(
-            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
-
-        ByteBuf buf = (ByteBuf) msg;
-
-        int header = buf.readShort();
-
-        if (header == 0x7878) {
-            return decodeBasic(channel, remoteAddress, buf);
-        } else if (header == 0x7979) {
-            return decodeExtended(channel, remoteAddress, buf);
-        }
-
-        return null;
-    }
-
-}