1 files changed, 85 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/MotorProtocolDecoder.java b/src/main/java/org/traccar/protocol/MotorProtocolDecoder.java
new file mode 100644
index 000000000..8ce4fe8b1
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/MotorProtocolDecoder.java
@@ -0,0 +1,85 @@
+/*
+ * 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.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import io.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.Protocol;
+import org.traccar.helper.BcdUtil;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.DataConverter;
+import org.traccar.helper.DateBuilder;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+
+public class MotorProtocolDecoder extends BaseProtocolDecoder {
+
+    public MotorProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        String sentence = (String) msg;
+        ByteBuf buf = Unpooled.wrappedBuffer(DataConverter.parseHex(sentence));
+
+        String id = String.format("%08x", buf.readUnsignedIntLE());
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, id);
+        if (deviceSession == null) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        buf.skipBytes(2); // divider
+
+        position.set(Position.KEY_STATUS, buf.readUnsignedShortLE());
+
+        buf.skipBytes(2); // divider
+        buf.readUnsignedMediumLE(); // command
+
+        int flags = buf.readUnsignedByte();
+        position.setValid(BitUtil.check(flags, 7));
+        if (BitUtil.check(flags, 0)) {
+            position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
+        }
+
+        position.setLatitude(BcdUtil.readInteger(buf, 2) + BcdUtil.readInteger(buf, 6) * 0.0001 / 60);
+        position.setLongitude(BcdUtil.readInteger(buf, 4) + BcdUtil.readInteger(buf, 6) * 0.0001 / 60);
+        position.setSpeed(BcdUtil.readInteger(buf, 4) * 0.1);
+        position.setCourse(BcdUtil.readInteger(buf, 4) * 0.1);
+
+        position.setTime(new DateBuilder()
+                .setYear(BcdUtil.readInteger(buf, 2))
+                .setMonth(BcdUtil.readInteger(buf, 2))
+                .setDay(BcdUtil.readInteger(buf, 2))
+                .setHour(BcdUtil.readInteger(buf, 2))
+                .setMinute(BcdUtil.readInteger(buf, 2))
+                .setSecond(BcdUtil.readInteger(buf, 2)).getDate());
+
+        position.set(Position.KEY_RSSI, BcdUtil.readInteger(buf, 2));
+
+        return position;
+    }
+
+}