diff options
Diffstat (limited to 'src/main/java/org/traccar/protocol/T800xProtocolDecoder.java')
| -rw-r--r-- | src/main/java/org/traccar/protocol/T800xProtocolDecoder.java | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/T800xProtocolDecoder.java b/src/main/java/org/traccar/protocol/T800xProtocolDecoder.java new file mode 100644 index 000000000..dfb286257 --- /dev/null +++ b/src/main/java/org/traccar/protocol/T800xProtocolDecoder.java @@ -0,0 +1,199 @@ +/* + * Copyright 2015 - 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.DeviceSession; +import org.traccar.NetworkMessage; +import org.traccar.Protocol; +import org.traccar.helper.BcdUtil; +import org.traccar.helper.BitUtil; +import org.traccar.helper.DateBuilder; +import org.traccar.helper.UnitsConverter; +import org.traccar.model.CellTower; +import org.traccar.model.Network; +import org.traccar.model.Position; + +import java.net.SocketAddress; + +public class T800xProtocolDecoder extends BaseProtocolDecoder { + + public T800xProtocolDecoder(Protocol protocol) { + super(protocol); + } + + public static final int MSG_LOGIN = 0x01; + public static final int MSG_GPS = 0x02; + public static final int MSG_HEARTBEAT = 0x03; + public static final int MSG_ALARM = 0x04; + public static final int MSG_COMMAND = 0x81; + + private void sendResponse(Channel channel, short header, int type, int index, ByteBuf imei) { + if (channel != null) { + ByteBuf response = Unpooled.buffer(15); + response.writeShort(header); + response.writeByte(type); + response.writeShort(response.capacity()); // length + response.writeShort(index); + response.writeBytes(imei); + channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress())); + } + } + + private String decodeAlarm(short value) { + switch (value) { + case 1: + return Position.ALARM_POWER_CUT; + case 2: + return Position.ALARM_LOW_BATTERY; + case 3: + return Position.ALARM_SOS; + case 4: + return Position.ALARM_OVERSPEED; + case 5: + return Position.ALARM_GEOFENCE_ENTER; + case 6: + return Position.ALARM_GEOFENCE_EXIT; + case 7: + return Position.ALARM_TOW; + case 8: + case 10: + return Position.ALARM_VIBRATION; + case 21: + return Position.ALARM_JAMMING; + case 23: + return Position.ALARM_POWER_RESTORED; + case 24: + return Position.ALARM_LOW_POWER; + default: + return null; + } + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + ByteBuf buf = (ByteBuf) msg; + + short header = buf.readShort(); + int type = buf.readUnsignedByte(); + buf.readUnsignedShort(); // length + int index = buf.readUnsignedShort(); + ByteBuf imei = buf.readSlice(8); + + DeviceSession deviceSession = getDeviceSession( + channel, remoteAddress, ByteBufUtil.hexDump(imei).substring(1)); + if (deviceSession == null) { + return null; + } + + sendResponse(channel, header, type, index, imei); + + if (type == MSG_GPS || type == MSG_ALARM) { + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + position.set(Position.KEY_INDEX, index); + + buf.readUnsignedShort(); // acc on interval + buf.readUnsignedShort(); // acc off interval + buf.readUnsignedByte(); // angle compensation + buf.readUnsignedShort(); // distance compensation + + position.set(Position.KEY_RSSI, BitUtil.to(buf.readUnsignedShort(), 7)); + + int status = buf.readUnsignedByte(); + position.set(Position.KEY_SATELLITES, BitUtil.to(status, 5)); + + buf.readUnsignedByte(); // gsensor manager status + buf.readUnsignedByte(); // other flags + buf.readUnsignedByte(); // heartbeat + buf.readUnsignedByte(); // relay status + buf.readUnsignedShort(); // drag alarm setting + + int io = buf.readUnsignedShort(); + position.set(Position.KEY_IGNITION, BitUtil.check(io, 14)); + position.set("ac", BitUtil.check(io, 13)); + + position.set(Position.PREFIX_ADC + 1, buf.readUnsignedShort()); + position.set(Position.PREFIX_ADC + 2, buf.readUnsignedShort()); + + position.set(Position.KEY_ALARM, decodeAlarm(buf.readUnsignedByte())); + + buf.readUnsignedByte(); // reserved + + position.set(Position.KEY_ODOMETER, buf.readUnsignedInt()); + + int battery = BcdUtil.readInteger(buf, 2); + if (battery == 0) { + battery = 100; + } + position.set(Position.KEY_BATTERY, battery); + + DateBuilder dateBuilder = new DateBuilder() + .setYear(BcdUtil.readInteger(buf, 2)) + .setMonth(BcdUtil.readInteger(buf, 2)) + .setDay(BcdUtil.readInteger(buf, 2)) + .setHour(BcdUtil.readInteger(buf, 2)) + .setMinute(BcdUtil.readInteger(buf, 2)) + .setSecond(BcdUtil.readInteger(buf, 2)); + + if (BitUtil.check(status, 6)) { + + position.setValid(!BitUtil.check(status, 7)); + position.setTime(dateBuilder.getDate()); + position.setAltitude(buf.readFloatLE()); + position.setLongitude(buf.readFloatLE()); + position.setLatitude(buf.readFloatLE()); + position.setSpeed(UnitsConverter.knotsFromKph(BcdUtil.readInteger(buf, 4) * 0.1)); + position.setCourse(buf.readUnsignedShort()); + + } else { + + getLastLocation(position, dateBuilder.getDate()); + + int mcc = buf.readUnsignedShortLE(); + int mnc = buf.readUnsignedShortLE(); + + if (mcc != 0xffff && mnc != 0xffff) { + Network network = new Network(); + for (int i = 0; i < 3; i++) { + network.addCellTower(CellTower.from( + mcc, mnc, buf.readUnsignedShortLE(), buf.readUnsignedShortLE())); + } + position.setNetwork(network); + } + + } + + if (buf.readableBytes() >= 2) { + position.set(Position.KEY_POWER, BcdUtil.readInteger(buf, 4) * 0.01); + } + + return position; + + } + + return null; + } + +} |