From 6c1ba89c82c0a07e6a33e4ea437953fbfc4dc1bd Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sun, 28 Jun 2020 16:36:06 -0700
Subject: Decode TK103 VIN number

---
 .../org/traccar/protocol/Tk103ProtocolDecoder.java | 30 ++++++++++++++++++++++
 .../traccar/protocol/Tk103ProtocolDecoderTest.java |  4 +++
 2 files changed, 34 insertions(+)

(limited to 'src')

diff --git a/src/main/java/org/traccar/protocol/Tk103ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Tk103ProtocolDecoder.java
index 325d2ebeb..1a45fbf75 100644
--- a/src/main/java/org/traccar/protocol/Tk103ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Tk103ProtocolDecoder.java
@@ -131,6 +131,14 @@ public class Tk103ProtocolDecoder extends BaseProtocolDecoder {
             .any()
             .compile();
 
+    private static final Pattern PATTERN_VIN = new PatternBuilder()
+            .text("(")
+            .number("(d+)")                      // device id
+            .expression("BV00")                  // command
+            .expression("(.{17})")               // vin
+            .text(")")
+            .compile();
+
     private String decodeAlarm(int value) {
         switch (value) {
             case 1:
@@ -370,7 +378,27 @@ public class Tk103ProtocolDecoder extends BaseProtocolDecoder {
         position.set(Position.KEY_RESULT, parser.next());
 
         return position;
+    }
+
+    private Position decodeVin(Channel channel, SocketAddress remoteAddress, String sentence) {
+        Parser parser = new Parser(PATTERN_VIN, sentence);
+        if (!parser.matches()) {
+            return null;
+        }
 
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+        if (deviceSession == null) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        getLastLocation(position, null);
+
+        position.set(Position.KEY_VIN, parser.next());
+
+        return position;
     }
 
     @Override
@@ -398,6 +426,8 @@ public class Tk103ProtocolDecoder extends BaseProtocolDecoder {
             return decodeCommandResult(channel, remoteAddress, sentence);
         } else if (sentence.contains("DW5")) {
             return decodeLbsWifi(channel, remoteAddress, sentence);
+        } else if (sentence.contains("BV00")) {
+            return decodeVin(channel, remoteAddress, sentence);
         }
 
         Parser parser = new Parser(PATTERN, sentence);
diff --git a/src/test/java/org/traccar/protocol/Tk103ProtocolDecoderTest.java b/src/test/java/org/traccar/protocol/Tk103ProtocolDecoderTest.java
index 48a72447c..422f99a73 100644
--- a/src/test/java/org/traccar/protocol/Tk103ProtocolDecoderTest.java
+++ b/src/test/java/org/traccar/protocol/Tk103ProtocolDecoderTest.java
@@ -11,6 +11,10 @@ public class Tk103ProtocolDecoderTest extends ProtocolTest {
 
         Tk103ProtocolDecoder decoder = new Tk103ProtocolDecoder(null);
 
+        verifyAttribute(decoder, text(
+                "(027023361470BV005J6RW2H53HL066029)"),
+                Position.KEY_VIN, "5J6RW2H53HL066029");
+
         verifyAttribute(decoder, text(
                 "(044027395704BQ81,ALARM,1,164,151101A2238.5237N11349.4571E0.7031241010.0000,00000000)"),
                 Position.KEY_ALARM, Position.ALARM_OVERSPEED);
-- 
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