using dle encoder in tm tcp server

pus_tm/tm_tcp_server.py

@@ -5,7 +5,7 @@ import base64
 
 from tmtccmd.logging import get_console_logger
 from tmtccmd.utility.obj_id import ObjectId
-
+from dle_encoder import DleEncoder
 
 # TODO add to configuration parameters
 SERVER_HOST = ""
@@ -32,6 +32,8 @@ class TmTcpServer:
 
         self.client_connection: Optional[socket.socket] = None
 
+        self.dle_encoder = DleEncoder()
+
     def __del__(self):
         try:
             self.close()
@@ -62,11 +64,8 @@ class TmTcpServer:
         data_json_bytes = json.dumps(dictionary).encode()
 
         # dle encode the bytes
-        # Taking a shortcut as json is inherently
-        # not binary (we also encoded it as utf-8), so there
-        # can not be any 0x02 or 0x03 be in there
-        # TODO use dle encoder to be format compliant
-        data_json_bytes = b'\x02' + data_json_bytes + b'\n' + b'\x03'
+        # adding a newline because someone might want to look at it in a console
+        data_json_bytes = self.dle_encoder.encode(data_json_bytes + b'\n')
 
         try:
             sent_length = self.client_connection.send(data_json_bytes)