From 33773135d333605059f0cb78282edd3a9438440e Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Mon, 29 Jun 2015 11:01:41 +1200
Subject: Improved gps103 protocol identification (fix #1272)

---
 src/org/traccar/protocol/Gps103ProtocolDecoder.java | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/org/traccar/protocol/Gps103ProtocolDecoder.java b/src/org/traccar/protocol/Gps103ProtocolDecoder.java
index 5dadd10e4..3f21beea8 100644
--- a/src/org/traccar/protocol/Gps103ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Gps103ProtocolDecoder.java
@@ -59,6 +59,8 @@ public class Gps103ProtocolDecoder extends BaseProtocolDecoder {
             "([^,;]+)?,?" +
             ".*");
 
+    private static final Pattern handshakePattern = Pattern.compile("##,imei:(\\d+),A");
+
     @Override
     protected Object decode(
             ChannelHandlerContext ctx, Channel channel, SocketAddress remoteAddress, Object msg)
@@ -70,6 +72,10 @@ public class Gps103ProtocolDecoder extends BaseProtocolDecoder {
         if (sentence.contains("##")) {
             if (channel != null) {
                 channel.write("LOAD", remoteAddress);
+                Matcher handshakeMatcher = handshakePattern.matcher(sentence);
+                if(handshakeMatcher.matches()) {
+                    identify(handshakeMatcher.group(1), channel);
+                }
             }
             return null;
         }
-- 
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