Implement new Mictrack protocol

1 files changed, 154 insertions, 0 deletions

diff --git a/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java
new file mode 100644
index 000000000..c11c97df3
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java
@@ -0,0 +1,154 @@
+/*
+ * Copyright 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.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.Protocol;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.CellTower;
+import org.traccar.model.Network;
+import org.traccar.model.Position;
+import org.traccar.model.WifiAccessPoint;
+
+import java.net.SocketAddress;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+public class MictrackProtocolDecoder extends BaseProtocolDecoder {
+
+    public MictrackProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    private Date decodeTime(String data) throws ParseException {
+        return new SimpleDateFormat("yyMMddHHmmss").parse(data);
+    }
+
+    private void decodeLocation(Position position, String data) throws ParseException {
+        int index = 0;
+        String[] values = data.split("\\+");
+
+        position.set(Position.KEY_SATELLITES, Integer.parseInt(values[index++]));
+
+        position.setValid(true);
+        position.setTime(decodeTime(values[index++]));
+        position.setLatitude(Double.parseDouble(values[index++]));
+        position.setLongitude(Double.parseDouble(values[index++]));
+        position.setSpeed(UnitsConverter.knotsFromMps(Double.parseDouble(values[index++])));
+        position.setCourse(Integer.parseInt(values[index++]));
+
+        position.set(Position.KEY_EVENT, Integer.parseInt(values[index++]));
+        position.set(Position.KEY_BATTERY, Integer.parseInt(values[index++]) * 0.001);
+    }
+
+    private void decodeCell(Network network, String data) {
+        String[] values = data.split(",");
+        int length = values.length % 5 == 0 ? 5 : 4;
+        for (int i = 0; i < values.length / length; i++) {
+            int mnc = Integer.parseInt(values[i * length]);
+            int lac = Integer.parseInt(values[i * length + 1]);
+            int cid = Integer.parseInt(values[i * length + 2]);
+            int mcc = Integer.parseInt(values[i * length + 3]);
+            network.addCellTower(CellTower.from(mcc, mnc, lac, cid));
+        }
+    }
+
+    private void decodeWifi(Network network, String data) {
+        String[] values = data.split(",");
+        for (int i = 0; i < values.length / 2; i++) {
+            network.addWifiAccessPoint(WifiAccessPoint.from(values[i * 2], Integer.parseInt(values[i * 2 + 1])));
+        }
+    }
+
+    private void decodeNetwork(Position position, String data, boolean hasWifi, boolean hasCell) throws ParseException {
+        int index = 0;
+        String[] values = data.split("\\+");
+
+        getLastLocation(position, decodeTime(values[index++]));
+
+        Network network = new Network();
+
+        if (hasWifi) {
+            decodeWifi(network, values[index++]);
+        }
+
+        if (hasCell) {
+            decodeCell(network, values[index++]);
+        }
+
+        position.setNetwork(network);
+
+        position.set(Position.KEY_EVENT, Integer.parseInt(values[index++]));
+        position.set(Position.KEY_BATTERY, Integer.parseInt(values[index++]) * 0.001);
+    }
+
+    private void decodeStatus(Position position, String data) throws ParseException {
+        int index = 0;
+        String[] values = data.split("\\+");
+
+        position.set(Position.KEY_SATELLITES, Integer.parseInt(values[index++]));
+
+        getLastLocation(position, decodeTime(values[index++]));
+
+        index += 4; // fix values
+
+        position.set(Position.KEY_EVENT, Integer.parseInt(values[index++]));
+        position.set(Position.KEY_BATTERY, Integer.parseInt(values[index++]) * 0.001);
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        String[] fragments = ((String) msg).split(";");
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, fragments[2]);
+        if (deviceSession == null) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        switch (fragments[3]) {
+            case "R0":
+                decodeLocation(position, fragments[4]);
+                break;
+            case "R1":
+                decodeNetwork(position, fragments[4], true, false);
+                break;
+            case "R2":
+            case "R3":
+                decodeNetwork(position, fragments[4], false, true);
+                break;
+            case "R12":
+            case "R13":
+                decodeNetwork(position, fragments[4], true, true);
+                break;
+            case "RH":
+                decodeStatus(position, fragments[4]);
+                break;
+            default:
+                return null;
+        }
+
+        return position;
+    }
+
+}