aboutsummaryrefslogtreecommitdiff
path: root/src/main/java/org/traccar/protocol/ThinkRaceProtocolDecoder.java
diff options
context:
space:
mode:
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/ThinkRaceProtocolDecoder.java
parent79a129dd6327d932133d6b9a50190d3f4927bff9 (diff)
downloadtrackermap-server-59416923dcb3a756eaf532cc4259f2f6625c0762.tar.gz
trackermap-server-59416923dcb3a756eaf532cc4259f2f6625c0762.tar.bz2
trackermap-server-59416923dcb3a756eaf532cc4259f2f6625c0762.zip
Convert project to gradle
Diffstat (limited to 'src/main/java/org/traccar/protocol/ThinkRaceProtocolDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/ThinkRaceProtocolDecoder.java116
1 files changed, 116 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/ThinkRaceProtocolDecoder.java b/src/main/java/org/traccar/protocol/ThinkRaceProtocolDecoder.java
new file mode 100644
index 000000000..0928b25e0
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/ThinkRaceProtocolDecoder.java
@@ -0,0 +1,116 @@
+/*
+ * 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.model.CellTower;
+import org.traccar.model.Network;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.Date;
+
+public class ThinkRaceProtocolDecoder extends BaseProtocolDecoder {
+
+ public ThinkRaceProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ public static final int MSG_LOGIN = 0x80;
+ public static final int MSG_GPS = 0x90;
+
+ private static double convertCoordinate(long raw, boolean negative) {
+ long degrees = raw / 1000000;
+ double minutes = (raw % 1000000) * 0.0001;
+ double result = degrees + minutes / 60;
+ if (negative) {
+ result = -result;
+ }
+ return result;
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ ByteBuf buf = (ByteBuf) msg;
+
+ buf.skipBytes(2); // header
+ ByteBuf id = buf.readSlice(12);
+ buf.readUnsignedByte(); // separator
+ int type = buf.readUnsignedByte();
+ buf.readUnsignedShort(); // length
+
+ if (type == MSG_LOGIN) {
+
+ int command = buf.readUnsignedByte(); // 0x00 - heartbeat
+
+ if (command == 0x01) {
+ String imei = buf.toString(buf.readerIndex(), 15, StandardCharsets.US_ASCII);
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
+ if (deviceSession != null && channel != null) {
+ ByteBuf response = Unpooled.buffer();
+ response.writeByte(0x48); response.writeByte(0x52); // header
+ response.writeBytes(id);
+ response.writeByte(0x2c); // separator
+ response.writeByte(type);
+ response.writeShort(0x0002); // length
+ response.writeShort(0x8000);
+ response.writeShort(0x0000); // checksum
+ channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
+ }
+ }
+
+ } else if (type == MSG_GPS) {
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ position.setTime(new Date(buf.readUnsignedInt() * 1000));
+
+ int flags = buf.readUnsignedByte();
+
+ position.setValid(true);
+ position.setLatitude(convertCoordinate(buf.readUnsignedInt(), !BitUtil.check(flags, 0)));
+ position.setLongitude(convertCoordinate(buf.readUnsignedInt(), !BitUtil.check(flags, 1)));
+
+ position.setSpeed(buf.readUnsignedByte());
+ position.setCourse(buf.readUnsignedByte());
+
+ position.setNetwork(new Network(
+ CellTower.fromLacCid(buf.readUnsignedShort(), buf.readUnsignedShort())));
+
+ return position;
+
+ }
+
+ return null;
+ }
+
+}