From f839ca4c24d80dcd78b5ad1d65f10cdf534d94d8 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Fri, 8 Dec 2017 04:47:26 +1300
Subject: Extend GK310 message format support

---
 src/org/traccar/protocol/Gt06ProtocolDecoder.java      |  5 ++++-
 src/org/traccar/protocol/Gt06ProtocolEncoder.java      | 16 +++++++++++-----
 test/org/traccar/protocol/Gt06ProtocolDecoderTest.java |  6 ++++++
 3 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/src/org/traccar/protocol/Gt06ProtocolDecoder.java b/src/org/traccar/protocol/Gt06ProtocolDecoder.java
index 2018fb6a6..bff04b36d 100644
--- a/src/org/traccar/protocol/Gt06ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Gt06ProtocolDecoder.java
@@ -236,8 +236,11 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
             }
         }
 
+        int mcc = buf.readUnsignedShort();
+        int mnc = BitUtil.check(mcc, 15) ? buf.readUnsignedShort() : buf.readUnsignedByte();
+
         position.setNetwork(new Network(CellTower.from(
-                buf.readUnsignedShort(), buf.readUnsignedByte(), buf.readUnsignedShort(), buf.readUnsignedMedium())));
+                BitUtil.to(mcc, 15), mnc, buf.readUnsignedShort(), buf.readUnsignedMedium())));
 
         if (length > 0) {
             buf.skipBytes(length - (hasLength ? 9 : 8));
diff --git a/src/org/traccar/protocol/Gt06ProtocolEncoder.java b/src/org/traccar/protocol/Gt06ProtocolEncoder.java
index a3e0a2264..daf045f4f 100644
--- a/src/org/traccar/protocol/Gt06ProtocolEncoder.java
+++ b/src/org/traccar/protocol/Gt06ProtocolEncoder.java
@@ -27,14 +27,16 @@ import java.nio.charset.StandardCharsets;
 
 public class Gt06ProtocolEncoder extends BaseProtocolEncoder {
 
-    private ChannelBuffer encodeContent(String content) {
+    private ChannelBuffer encodeContent(long deviceId, String content) {
+
+        boolean language = Context.getIdentityManager().lookupAttributeBoolean(deviceId, "gt06.language", false, true);
 
         ChannelBuffer buf = ChannelBuffers.dynamicBuffer();
 
         buf.writeByte(0x78);
         buf.writeByte(0x78);
 
-        buf.writeByte(1 + 1 + 4 + content.length() + 2 + 2); // message length
+        buf.writeByte(1 + 1 + 4 + content.length() + 2 + 2 + (language ? 2 : 0)); // message length
 
         buf.writeByte(0x80); // message type
 
@@ -42,6 +44,10 @@ public class Gt06ProtocolEncoder extends BaseProtocolEncoder {
         buf.writeInt(0);
         buf.writeBytes(content.getBytes(StandardCharsets.US_ASCII)); // command
 
+        if (language) {
+            buf.writeShort(2); // english language
+        }
+
         buf.writeShort(0); // message index
 
         buf.writeShort(Checksum.crc16(Checksum.CRC16_X25, buf.toByteBuffer(2, buf.writerIndex() - 2)));
@@ -60,11 +66,11 @@ public class Gt06ProtocolEncoder extends BaseProtocolEncoder {
 
         switch (command.getType()) {
             case Command.TYPE_ENGINE_STOP:
-                return encodeContent(alternative ? "DYD,123456#" : "Relay,1#");
+                return encodeContent(command.getDeviceId(), alternative ? "DYD,123456#" : "Relay,1#");
             case Command.TYPE_ENGINE_RESUME:
-                return encodeContent(alternative ? "HFYD,123456#" : "Relay,0#");
+                return encodeContent(command.getDeviceId(), alternative ? "HFYD,123456#" : "Relay,0#");
             case Command.TYPE_CUSTOM:
-                return encodeContent(command.getString(Command.KEY_DATA));
+                return encodeContent(command.getDeviceId(), command.getString(Command.KEY_DATA));
             default:
                 Log.warning(new UnsupportedOperationException(command.getType()));
                 break;
diff --git a/test/org/traccar/protocol/Gt06ProtocolDecoderTest.java b/test/org/traccar/protocol/Gt06ProtocolDecoderTest.java
index b6493e85b..7f191d664 100644
--- a/test/org/traccar/protocol/Gt06ProtocolDecoderTest.java
+++ b/test/org/traccar/protocol/Gt06ProtocolDecoderTest.java
@@ -19,6 +19,12 @@ public class Gt06ProtocolDecoderTest extends ProtocolTest {
         verifyAttributes(decoder, binary(
                 "78780B23C00122040001000818720D0A"));
 
+        /*verifyNotNull(decoder, binary(
+                "78782727110c070f1a338000000000000000000004002d81360104cb8a00bef30004030c02ff0004f4d20d0a"));*/
+
+        verifyNotNull(decoder, binary(
+                "78782322110c070f1b0270000000000000000000040081360104cb8a00bef3000000000523030d0a"));
+
         verifyNotNull(decoder, binary(
                 "787880a2110b161010140136040000591200000000009d7c01020000591200000000009d7c01020000591200000000009d7c01020000591200000000009d7c01020000591200000000009d7c01020000591200000000009d7c01020000591200000000009d7c0102ff033c1e04ddc28aa6001801eb4039c90000000000000014db84730d0a"));
 
-- 
cgit v1.2.3