From f940d94548f45de9ece8195028abf4bafb979135 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sat, 25 Mar 2017 16:50:08 +1300
Subject: Implement alarms for Meitrack

---
 src/org/traccar/protocol/Gt06ProtocolDecoder.java  |  3 +--
 .../traccar/protocol/MeitrackProtocolDecoder.java  | 24 +++++++++++++++++++++-
 .../protocol/MeitrackProtocolDecoderTest.java      |  3 +++
 3 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/src/org/traccar/protocol/Gt06ProtocolDecoder.java b/src/org/traccar/protocol/Gt06ProtocolDecoder.java
index bbba639c1..d94df7531 100644
--- a/src/org/traccar/protocol/Gt06ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Gt06ProtocolDecoder.java
@@ -184,9 +184,8 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
             case 0x11:
                 return Position.ALARM_POWER_OFF;
             default:
-                break;
+                return null;
         }
-        return null;
     }
 
     @Override
diff --git a/src/org/traccar/protocol/MeitrackProtocolDecoder.java b/src/org/traccar/protocol/MeitrackProtocolDecoder.java
index bd6f3e8be..9189d2a66 100644
--- a/src/org/traccar/protocol/MeitrackProtocolDecoder.java
+++ b/src/org/traccar/protocol/MeitrackProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2017 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.
@@ -84,6 +84,27 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
             .text("\r\n").optional()
             .compile();
 
+    private String decodeAlarm(int event) {
+        switch (event) {
+            case 1:
+                return Position.ALARM_SOS;
+            case 17:
+                return Position.ALARM_LOW_BATTERY;
+            case 18:
+                return Position.ALARM_POWER_CUT;
+            case 19:
+                return Position.ALARM_OVERSPEED;
+            case 20:
+                return Position.ALARM_GEOFENCE_ENTER;
+            case 21:
+                return Position.ALARM_GEOFENCE_EXIT;
+            case 36:
+                return Position.ALARM_TOW;
+            default:
+                return null;
+        }
+    }
+
     private Position decodeRegularMessage(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) {
 
         Parser parser = new Parser(PATTERN, buf.toString(StandardCharsets.US_ASCII));
@@ -102,6 +123,7 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
 
         int event = parser.nextInt();
         position.set(Position.KEY_EVENT, event);
+        position.set(Position.KEY_ALARM, decodeAlarm(event));
 
         position.setLatitude(parser.nextDouble());
         position.setLongitude(parser.nextDouble());
diff --git a/test/org/traccar/protocol/MeitrackProtocolDecoderTest.java b/test/org/traccar/protocol/MeitrackProtocolDecoderTest.java
index 9534df2e0..d387332d6 100644
--- a/test/org/traccar/protocol/MeitrackProtocolDecoderTest.java
+++ b/test/org/traccar/protocol/MeitrackProtocolDecoderTest.java
@@ -11,6 +11,9 @@ public class MeitrackProtocolDecoderTest extends ProtocolTest {
 
         MeitrackProtocolDecoder decoder = new MeitrackProtocolDecoder(new MeitrackProtocol());
 
+        verifyPosition(decoder, buffer(
+                "$$T143,869013024733944,AAA,1,18.459575,-69.947161,170220142912,A,5,15,10,300,1.6,115,3989,187884,370|2|5337|2B2C,0100,0000|0000|0000|0964|0B04,,*C2"));
+
         verifyPosition(decoder, buffer(
                 "$$K157,866771027160687,AAA,3,37.040231,10.042391,160412151656,A,10,11,0,48,0.8,21,1035518,774980,605|2|0010|307B,0400,0000|0000|0000|0A47|03E3,,,1,0000,001206*2C"));
 
-- 
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