Improved logging mechanism (and a few minor goodies) (#54)

* Improved logging mechanism

* Allow for suppression of any errors regarding failed device updates

workers/miflora.py

@@ -1,29 +1,37 @@
-from interruptingcow import timeout
+import logging
+
 from mqtt import MqttMessage
+
 from workers.base import BaseWorker
+import logger
 
 REQUIREMENTS = ['git+https://github.com/open-homeautomation/miflora.git@84f39432082796412d05b754c948499a1ad710e7#egg=miflora', 'bluepy']
-
 monitoredAttrs = ["temperature", "moisture", "light", "conductivity", "battery"]
+_LOGGER = logger.get(__name__)
+
 
 class MifloraWorker(BaseWorker):
   def _setup(self):
     from miflora.miflora_poller import MiFloraPoller
     from btlewrap.bluepy import BluepyBackend
 
+    _LOGGER.info("Adding %d %s devices", len(self.devices), repr(self))
     for name, mac in self.devices.items():
+      _LOGGER.debug("Adding %s device '%s' (%s)", repr(self), name, mac)
       self.devices[name] = MiFloraPoller(mac, BluepyBackend)
 
   def status_update(self):
+    from btlewrap.base import BluetoothBackendException
+    _LOGGER.info("Updating %d %s devices", len(self.devices), repr(self))
     ret = []
     for name, poller in self.devices.items():
+      _LOGGER.debug("Updating %s device '%s' (%s)", repr(self), name, poller._mac)
       try:
         ret += self.update_device_state(name, poller)
-      except RuntimeError:
-        pass
+      except BluetoothBackendException as e:
+        logger.log_exception(_LOGGER, "Error during update of %s device '%s' (%s): %s", repr(self), name, poller._mac, type(e).__name__, suppress=True)
     return ret
 
-  @timeout(8.0)
   def update_device_state(self, name, poller):
     ret = []
     poller.clear_cache()