From 59416923dcb3a756eaf532cc4259f2f6625c0762 Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Sun, 31 Mar 2019 22:35:39 -0700 Subject: Convert project to gradle --- .../traccar/protocol/AutoTrackProtocolDecoder.java | 138 +++++++++++++++++++++ 1 file changed, 138 insertions(+) create mode 100644 src/main/java/org/traccar/protocol/AutoTrackProtocolDecoder.java (limited to 'src/main/java/org/traccar/protocol/AutoTrackProtocolDecoder.java') diff --git a/src/main/java/org/traccar/protocol/AutoTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/AutoTrackProtocolDecoder.java new file mode 100644 index 000000000..3c1fd256b --- /dev/null +++ b/src/main/java/org/traccar/protocol/AutoTrackProtocolDecoder.java @@ -0,0 +1,138 @@ +/* + * Copyright 2018 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.Checksum; +import org.traccar.helper.UnitsConverter; +import org.traccar.model.Position; + +import java.net.SocketAddress; +import java.util.Date; + +public class AutoTrackProtocolDecoder extends BaseProtocolDecoder { + + public AutoTrackProtocolDecoder(Protocol protocol) { + super(protocol); + } + + public static final int MSG_LOGIN_REQUEST = 51; + public static final int MSG_LOGIN_CONFIRM = 101; + public static final int MSG_TELEMETRY_1 = 52; + public static final int MSG_TELEMETRY_2 = 66; + public static final int MSG_TELEMETRY_3 = 67; + public static final int MSG_KEEP_ALIVE = 114; + public static final int MSG_TELEMETRY_CONFIRM = 123; + + private Position decodeTelemetry( + Channel channel, SocketAddress remoteAddress, DeviceSession deviceSession, ByteBuf buf) { + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + position.setTime(new Date(1009843200000L + buf.readUnsignedIntLE() * 1000)); // seconds since 2002 + position.setLatitude(buf.readIntLE() * 0.0000001); + position.setLongitude(buf.readIntLE() * 0.0000001); + + position.set(Position.KEY_ODOMETER, buf.readUnsignedIntLE()); + position.set(Position.KEY_FUEL_USED, buf.readUnsignedIntLE()); + + position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShortLE())); + buf.readUnsignedShortLE(); // max speed + + position.set(Position.KEY_INPUT, buf.readUnsignedShortLE()); + buf.readUnsignedIntLE(); // di 3 count + buf.readUnsignedIntLE(); // di 4 count + + for (int i = 0; i < 5; i++) { + position.set(Position.PREFIX_ADC + (i + 1), buf.readUnsignedShortLE()); + } + + position.setCourse(buf.readUnsignedShortLE()); + + position.set(Position.KEY_STATUS, buf.readUnsignedShortLE()); + position.set(Position.KEY_EVENT, buf.readUnsignedShortLE()); + position.set(Position.KEY_DRIVER_UNIQUE_ID, buf.readLongLE()); + + int index = buf.readUnsignedShortLE(); + + buf.readUnsignedShortLE(); // checksum + + if (channel != null) { + ByteBuf response = Unpooled.buffer(); + response.writeInt(0xF1F1F1F1); // sync + response.writeByte(MSG_TELEMETRY_CONFIRM); + response.writeShortLE(2); // length + response.writeShortLE(index); + response.writeShort(Checksum.crc16(Checksum.CRC16_XMODEM, response.nioBuffer())); + channel.writeAndFlush(new NetworkMessage(response, remoteAddress)); + } + + return position; + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + ByteBuf buf = (ByteBuf) msg; + + buf.skipBytes(4); // sync + int type = buf.readUnsignedByte(); + buf.readUnsignedShortLE(); // length + + switch (type) { + case MSG_LOGIN_REQUEST: + String imei = ByteBufUtil.hexDump(buf.readBytes(8)); + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei); + if (deviceSession == null) { + return null; + } + int fuelConst = buf.readUnsignedShortLE(); + int tripConst = buf.readUnsignedShortLE(); + if (channel != null) { + ByteBuf response = Unpooled.buffer(); + response.writeInt(0xF1F1F1F1); // sync + response.writeByte(MSG_LOGIN_CONFIRM); + response.writeShortLE(12); // length + response.writeBytes(ByteBufUtil.decodeHexDump(imei)); + response.writeShortLE(fuelConst); + response.writeShortLE(tripConst); + response.writeShort(Checksum.crc16(Checksum.CRC16_XMODEM, response.nioBuffer())); + channel.writeAndFlush(new NetworkMessage(response, remoteAddress)); + } + return null; + case MSG_TELEMETRY_1: + case MSG_TELEMETRY_2: + case MSG_TELEMETRY_3: + deviceSession = getDeviceSession(channel, remoteAddress); + if (deviceSession == null) { + return null; + } + return decodeTelemetry(channel, remoteAddress, deviceSession, buf); + default: + return null; + } + } + +} -- cgit v1.2.3