1 files changed, 16 insertions, 6 deletions
diff --git a/src/main/java/org/traccar/protocol/T800xProtocolEncoder.java b/src/main/java/org/traccar/protocol/T800xProtocolEncoder.java
index 34f30b147..74587c8b1 100644
--- a/src/main/java/org/traccar/protocol/T800xProtocolEncoder.java
+++ b/src/main/java/org/traccar/protocol/T800xProtocolEncoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 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.
@@ -17,9 +17,11 @@ package org.traccar.protocol;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
+import io.netty.channel.Channel;
 import org.traccar.BaseProtocolEncoder;
 import org.traccar.helper.DataConverter;
 import org.traccar.model.Command;
+import org.traccar.Protocol;
 
 import java.nio.charset.StandardCharsets;
 
@@ -29,12 +31,15 @@ public class T800xProtocolEncoder extends BaseProtocolEncoder {
     public static final int MODE_BROADCAST = 0x02;
     public static final int MODE_FORWARD = 0x03;
 
-    private ByteBuf encodeContent(Command command, String content) {
+    public T800xProtocolEncoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    private ByteBuf encodeContent(Command command, short header, String content) {
 
         ByteBuf buf = Unpooled.buffer();
 
-        buf.writeByte('%');
-        buf.writeByte('%');
+        buf.writeShort(header);
         buf.writeByte(T800xProtocolDecoder.MSG_COMMAND);
         buf.writeShort(7 + 8 + 1 + content.length());
         buf.writeShort(1); // serial number
@@ -46,11 +51,16 @@ public class T800xProtocolEncoder extends BaseProtocolEncoder {
     }
 
     @Override
-    protected Object encodeCommand(Command command) {
+    protected Object encodeCommand(Channel channel, Command command) {
+
+        short header = T800xProtocolDecoder.DEFAULT_HEADER;
+        if (channel != null) {
+            header = channel.pipeline().get(T800xProtocolDecoder.class).getHeader();
+        }
 
         switch (command.getType()) {
             case Command.TYPE_CUSTOM:
-                return encodeContent(command, command.getString(Command.KEY_DATA));
+                return encodeContent(command, header, command.getString(Command.KEY_DATA));
             default:
                 return null;
         }