aboutsummaryrefslogtreecommitdiff
path: root/src/main/java/org/traccar/protocol/TytanProtocolDecoder.java
diff options
context:
space:
mode:
Diffstat (limited to 'src/main/java/org/traccar/protocol/TytanProtocolDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/TytanProtocolDecoder.java192
1 files changed, 192 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/TytanProtocolDecoder.java b/src/main/java/org/traccar/protocol/TytanProtocolDecoder.java
new file mode 100644
index 000000000..93d3a63d2
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/TytanProtocolDecoder.java
@@ -0,0 +1,192 @@
+/*
+ * 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.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.BitUtil;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.Date;
+import java.util.LinkedList;
+import java.util.List;
+
+public class TytanProtocolDecoder extends BaseProtocolDecoder {
+
+ public TytanProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ private void decodeExtraData(Position position, ByteBuf buf, int end) {
+ while (buf.readerIndex() < end) {
+
+ int type = buf.readUnsignedByte();
+ int length = buf.readUnsignedByte();
+ if (length == 255) {
+ length += buf.readUnsignedByte();
+ }
+
+ int n;
+
+ switch (type) {
+ case 2:
+ position.set(Position.KEY_ODOMETER_TRIP, buf.readUnsignedMedium());
+ break;
+ case 5:
+ position.set(Position.KEY_INPUT, buf.readUnsignedByte());
+ break;
+ case 6:
+ n = buf.readUnsignedByte() >> 4;
+ if (n < 2) {
+ position.set(Position.PREFIX_ADC + n, buf.readFloat());
+ } else {
+ position.set("di" + (n - 2), buf.readFloat());
+ }
+ break;
+ case 7:
+ int alarm = buf.readUnsignedByte();
+ buf.readUnsignedByte();
+ if (BitUtil.check(alarm, 5)) {
+ position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
+ }
+ break;
+ case 8:
+ position.set("antihijack", buf.readUnsignedByte());
+ break;
+ case 9:
+ position.set("unauthorized", ByteBufUtil.hexDump(buf.readSlice(8)));
+ break;
+ case 10:
+ position.set("authorized", ByteBufUtil.hexDump(buf.readSlice(8)));
+ break;
+ case 24:
+ for (int i = 0; i < length / 2; i++) {
+ position.set(Position.PREFIX_TEMP + buf.readUnsignedByte(), buf.readByte());
+ }
+ break;
+ case 28:
+ position.set(Position.KEY_AXLE_WEIGHT, buf.readUnsignedShort());
+ buf.readUnsignedByte();
+ break;
+ case 90:
+ position.set(Position.KEY_POWER, buf.readFloat());
+ break;
+ case 101:
+ position.set(Position.KEY_OBD_SPEED, buf.readUnsignedByte());
+ break;
+ case 102:
+ position.set(Position.KEY_RPM, buf.readUnsignedByte() * 50);
+ break;
+ case 107:
+ int fuel = buf.readUnsignedShort();
+ int fuelFormat = fuel >> 14;
+ if (fuelFormat == 1) {
+ position.set("fuelValue", (fuel & 0x3fff) * 0.4 + "%");
+ } else if (fuelFormat == 2) {
+ position.set("fuelValue", (fuel & 0x3fff) * 0.5 + " l");
+ } else if (fuelFormat == 3) {
+ position.set("fuelValue", (fuel & 0x3fff) * -0.5 + " l");
+ }
+ break;
+ case 108:
+ position.set(Position.KEY_OBD_ODOMETER, buf.readUnsignedInt() * 5);
+ break;
+ case 150:
+ position.set(Position.KEY_DOOR, buf.readUnsignedByte());
+ break;
+ default:
+ buf.skipBytes(length);
+ break;
+ }
+ }
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ ByteBuf buf = (ByteBuf) msg;
+
+ buf.readUnsignedByte(); // protocol
+ buf.readUnsignedShort(); // length
+ int index = buf.readUnsignedByte() >> 3;
+
+ if (channel != null) {
+ ByteBuf response = Unpooled.copiedBuffer("^" + index, StandardCharsets.US_ASCII);
+ channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
+ }
+
+ String id = String.valueOf(buf.readUnsignedInt());
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, id);
+ if (deviceSession == null) {
+ return null;
+ }
+
+ List<Position> positions = new LinkedList<>();
+
+ while (buf.readableBytes() > 2) {
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ int end = buf.readerIndex() + buf.readUnsignedByte();
+
+ position.setTime(new Date(buf.readUnsignedInt() * 1000));
+
+ int flags = buf.readUnsignedByte();
+ position.set(Position.KEY_SATELLITES, BitUtil.from(flags, 2));
+ position.setValid(BitUtil.to(flags, 2) > 0);
+
+ // Latitude
+ double lat = buf.readUnsignedMedium();
+ lat = lat * -180 / 16777216 + 90;
+ position.setLatitude(lat);
+
+ // Longitude
+ double lon = buf.readUnsignedMedium();
+ lon = lon * 360 / 16777216 - 180;
+ position.setLongitude(lon);
+
+ // Status
+ flags = buf.readUnsignedByte();
+ position.set(Position.KEY_IGNITION, BitUtil.check(flags, 0));
+ position.set(Position.KEY_RSSI, BitUtil.between(flags, 2, 5));
+ position.setCourse((BitUtil.from(flags, 5) * 45 + 180) % 360);
+
+ // Speed
+ int speed = buf.readUnsignedByte();
+ if (speed < 250) {
+ position.setSpeed(UnitsConverter.knotsFromKph(speed));
+ }
+
+ decodeExtraData(position, buf, end);
+
+ positions.add(position);
+ }
+
+ return positions;
+ }
+
+}