Merge pull request #145 from mfine/mfine-inject-tags-into-logs

Allow the logger to inject tags into the logs

python/sbp/client/loggers/base_logger.py

@@ -23,10 +23,11 @@ class BaseLogger(object):
   filename : string
     File to log to.
   """
-  def __init__(self, filename, mode="w", dispatcher=dispatch):
+  def __init__(self, filename, mode="w", tags=None, dispatcher=dispatch):
     self.handle = open(filename, mode)
     self.dispatcher = dispatcher
     self.base_time = time.time()
+    self.tags = dict([tuple(t.split('=')) for t in tags.split(',')]) if tags else {}
 
   def __enter__(self):
     return self

python/sbp/client/loggers/json_logger.py

@@ -35,7 +35,8 @@ def fmt_msg(self, msg):
       data = msg.to_json_dict()
     return {"delta": self.delta(),
             "timestamp": self.timestamp(),
-            "data": data}
+            "data": data,
+            "metadata": self.tags}
 
   def call(self, msg):
     try: