Several fixes and improvements

pisa/logger.py

@@ -0,0 +1,30 @@
+import logging
+import time
+import json
+
+
+class StructuredMessage(object):
+    def __init__(self, message, **kwargs):
+        self.message = message
+        self.time = time.asctime()
+        self.kwargs = kwargs
+
+    def __str__(self):
+        return json.dumps({**self.kwargs, "message": self.message, "time": self.time})
+
+
+class Logger(object):
+    def __init__(self, actor=None):
+        self.actor = actor
+
+    def _add_prefix(self, msg):
+        return msg if self.actor is None else "[{}] {}".format(self.actor, msg)
+
+    def info(self, msg, **kwargs):
+        logging.info(StructuredMessage(self._add_prefix(msg), actor=self.actor, **kwargs))
+
+    def debug(self, msg, **kwargs):
+        logging.debug(StructuredMessage(self._add_prefix(msg), actor=self.actor, **kwargs))
+
+    def error(self, msg, **kwargs):
+        logging.error(StructuredMessage(self._add_prefix(msg), actor=self.actor, **kwargs))