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authorAnton Tananaev <anton.tananaev@gmail.com>2019-03-31 22:35:39 -0700
committerAnton Tananaev <anton.tananaev@gmail.com>2019-03-31 22:35:39 -0700
commit59416923dcb3a756eaf532cc4259f2f6625c0762 (patch)
tree9082dae6616deac8fda432b7bfd80e4a52b6d9dc /src/main/java/org/traccar/protocol/MxtProtocolDecoder.java
parent79a129dd6327d932133d6b9a50190d3f4927bff9 (diff)
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Convert project to gradle
Diffstat (limited to 'src/main/java/org/traccar/protocol/MxtProtocolDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/MxtProtocolDecoder.java175
1 files changed, 175 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/MxtProtocolDecoder.java b/src/main/java/org/traccar/protocol/MxtProtocolDecoder.java
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+++ b/src/main/java/org/traccar/protocol/MxtProtocolDecoder.java
@@ -0,0 +1,175 @@
+/*
+ * Copyright 2015 - 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.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.BitUtil;
+import org.traccar.helper.Checksum;
+import org.traccar.helper.DateBuilder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+
+public class MxtProtocolDecoder extends BaseProtocolDecoder {
+
+ public MxtProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ public static final int MSG_ACK = 0x02;
+ public static final int MSG_NACK = 0x03;
+ public static final int MSG_POSITION = 0x31;
+
+ private static void sendResponse(Channel channel, int device, long id, int crc) {
+ if (channel != null) {
+ ByteBuf response = Unpooled.buffer();
+ response.writeByte(device);
+ response.writeByte(MSG_ACK);
+ response.writeIntLE((int) id);
+ response.writeShortLE(crc);
+ response.writeShortLE(Checksum.crc16(
+ Checksum.CRC16_XMODEM, response.nioBuffer()));
+
+ ByteBuf encoded = Unpooled.buffer();
+ encoded.writeByte(0x01); // header
+ while (response.isReadable()) {
+ int b = response.readByte();
+ if (b == 0x01 || b == 0x04 || b == 0x10 || b == 0x11 || b == 0x13) {
+ encoded.writeByte(0x10);
+ b += 0x20;
+ }
+ encoded.writeByte(b);
+ }
+ response.release();
+ encoded.writeByte(0x04); // ending
+ channel.writeAndFlush(new NetworkMessage(encoded, channel.remoteAddress()));
+ }
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ ByteBuf buf = (ByteBuf) msg;
+
+ buf.readUnsignedByte(); // start
+ int device = buf.readUnsignedByte(); // device descriptor
+ int type = buf.readUnsignedByte();
+
+ long id = buf.readUnsignedIntLE();
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, String.valueOf(id));
+ if (deviceSession == null) {
+ return null;
+ }
+
+ if (type == MSG_POSITION) {
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ buf.readUnsignedByte(); // protocol
+ int infoGroups = buf.readUnsignedByte();
+
+ position.set(Position.KEY_INDEX, buf.readUnsignedShortLE());
+
+ DateBuilder dateBuilder = new DateBuilder().setDate(2000, 1, 1);
+
+ long date = buf.readUnsignedIntLE();
+
+ long days = BitUtil.from(date, 6 + 6 + 5);
+ long hours = BitUtil.between(date, 6 + 6, 6 + 6 + 5);
+ long minutes = BitUtil.between(date, 6, 6 + 6);
+ long seconds = BitUtil.to(date, 6);
+
+ dateBuilder.addMillis((((days * 24 + hours) * 60 + minutes) * 60 + seconds) * 1000);
+
+ position.setTime(dateBuilder.getDate());
+
+ position.setValid(true);
+ position.setLatitude(buf.readIntLE() / 1000000.0);
+ position.setLongitude(buf.readIntLE() / 1000000.0);
+
+ long flags = buf.readUnsignedIntLE();
+ position.set(Position.KEY_IGNITION, BitUtil.check(flags, 0));
+ if (BitUtil.check(flags, 1)) {
+ position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
+ }
+ position.set(Position.KEY_INPUT, BitUtil.between(flags, 2, 7));
+ position.set(Position.KEY_OUTPUT, BitUtil.between(flags, 7, 10));
+ position.setCourse(BitUtil.between(flags, 10, 13) * 45);
+ // position.setValid(BitUtil.check(flags, 15));
+ position.set(Position.KEY_CHARGE, BitUtil.check(flags, 20));
+
+ position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte()));
+
+ buf.readUnsignedByte(); // input mask
+
+ if (BitUtil.check(infoGroups, 0)) {
+ buf.skipBytes(8); // waypoints
+ }
+
+ if (BitUtil.check(infoGroups, 1)) {
+ buf.skipBytes(8); // wireless accessory
+ }
+
+ if (BitUtil.check(infoGroups, 2)) {
+ position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+ position.set(Position.KEY_HDOP, buf.readUnsignedByte());
+ position.setAccuracy(buf.readUnsignedByte());
+ position.set(Position.KEY_RSSI, buf.readUnsignedByte());
+ buf.readUnsignedShortLE(); // time since boot
+ position.set(Position.KEY_POWER, buf.readUnsignedByte());
+ position.set(Position.PREFIX_TEMP + 1, buf.readByte());
+ }
+
+ if (BitUtil.check(infoGroups, 3)) {
+ position.set(Position.KEY_ODOMETER, buf.readUnsignedIntLE());
+ }
+
+ if (BitUtil.check(infoGroups, 4)) {
+ position.set(Position.KEY_HOURS, UnitsConverter.msFromMinutes(buf.readUnsignedIntLE()));
+ }
+
+ if (BitUtil.check(infoGroups, 5)) {
+ buf.readUnsignedIntLE(); // reason
+ }
+
+ if (BitUtil.check(infoGroups, 6)) {
+ position.set(Position.KEY_POWER, buf.readUnsignedShortLE() * 0.001);
+ position.set(Position.KEY_BATTERY, buf.readUnsignedShortLE());
+ }
+
+ if (BitUtil.check(infoGroups, 7)) {
+ position.set(Position.KEY_DRIVER_UNIQUE_ID, String.valueOf(buf.readUnsignedIntLE()));
+ }
+
+ buf.readerIndex(buf.writerIndex() - 3);
+ sendResponse(channel, device, id, buf.readUnsignedShortLE());
+
+ return position;
+ }
+
+ return null;
+ }
+
+}