Rewiring how we do statsd

- decorater added to the DAO for notifications

app/statsd_decorators.py

@@ -0,0 +1,30 @@
+import functools
+
+from app import statsd_client
+from flask import current_app
+from monotonic import monotonic
+
+
+def statsd_timer(namespace):
+    def time_function(func):
+        @functools.wraps(func)
+        def wrapper(*args, **kwargs):
+            start_time = monotonic()
+            res = func(*args, **kwargs)
+            elapsed_time = monotonic() - start_time
+            current_app.logger.info(
+                "{namespace} call {func} took {time}".format(
+                    namespace=namespace, func=func.__name__, time="{0:.4f}".format(elapsed_time)
+                )
+            )
+            statsd_client.incr('notifications.{namespace}.{func}'.format(
+                namespace=namespace, func=func.__name__)
+            )
+            statsd_client.timing('notifications.{namespace}.{func}'.format(
+                namespace=namespace, func=func.__name__), elapsed_time
+            )
+            return res
+        wrapper.__wrapped__.__name__ = func.__name__
+        return wrapper
+
+    return time_function