Switch globalpromstats worker to use a data interface

workers/globalpromstats/models_interface.py

@@ -0,0 +1,27 @@
+from abc import ABCMeta, abstractmethod
+from six import add_metaclass
+
+@add_metaclass(ABCMeta)
+class GlobalPromStatsWorkerDataInterface(object):
+  """
+  Interface that represents all data store interactions required by the global prom stats worker.
+  """
+  @abstractmethod
+  def get_repository_count(self):
+    """ Returns the number of repositories in the database. """
+    pass
+
+  @abstractmethod
+  def get_active_user_count(self):
+    """ Returns the number of active users in the database. """
+    pass
+
+  @abstractmethod
+  def get_active_org_count(self):
+    """ Returns the number of active organizations in the database. """
+    pass
+
+  @abstractmethod
+  def get_robot_count(self):
+    """ Returns the number of robots in the database. """
+    pass