Rename mixins module to tornado.

Tried to make it clear that tornado is an optional requirement.

MANIFEST.in

@@ -4,3 +4,4 @@ graft tests
 include CHANGELOG.rst
 include example.py
 include LICENSE
+include tox.ini

README.rst

@@ -33,8 +33,9 @@ data to send and the task consumes the internal queue when it is connected.
 
 Tornado helpers
 ===============
-The ``sprockets_statsd.mixins`` module contains mix-in classes that make reporting metrics from your tornado_ web
-application simple.
+The ``sprockets_statsd.tornado`` module contains mix-in classes that make reporting metrics from your tornado_ web
+application simple.  You will need to install the ``sprockets_statsd[tornado]`` mix-in to ensure that the Tornado
+requirements for this library are met.
 
 .. code-block:: python
 
@@ -43,10 +44,10 @@ application simple.
    
    from tornado import ioloop, web
    
-   import sprockets_statsd.mixins
+   import sprockets_statsd.tornado
    
    
-   class MyHandler(sprockets_statsd.mixins.RequestHandler,
+   class MyHandler(sprockets_statsd.tornado.RequestHandler,
                    web.RequestHandler):
        async def get(self):
            with self.execution_timer('some-operation'):
@@ -57,8 +58,12 @@ application simple.
            await asyncio.sleep(1)
    
    
-   class Application(sprockets_statsd.mixins.Application, web.Application):
+   class Application(sprockets_statsd.tornado.Application, web.Application):
        def __init__(self, **settings):
+           settings['statsd'] = {
+               'host': os.environ['STATSD_HOST'],
+               'prefix': 'applications.my-service',
+           }
            super().__init__([web.url('/', MyHandler)], **settings)
    
        async def on_start(self):
@@ -83,8 +88,8 @@ application simple.
 
 This application will emit two timing metrics each time that the endpoint is invoked::
 
-   applications.timers.some-operation:1001.3449192047119|ms
-   applications.timers.MyHandler.GET.204:1002.4960041046143|ms
+   applications.my-service.timers.some-operation:1001.3449192047119|ms
+   applications.my-service.timers.MyHandler.GET.204:1002.4960041046143|ms
 
 You will need to set the ``$STATSD_HOST`` environment variable to enable the statsd processing inside of the
 application.  The ``RequestHandler`` class exposes methods that send counter and timing metrics to a statsd server.

docs/index.rst

@@ -19,17 +19,17 @@ the following environment variables.
 
 .. envvar:: STATSD_PREFIX
 
-   Optional prefix to use for metric paths.  See the documentation for :class:`~sprockets_statsd.mixins.Application`
-   for addition notes on setting the path prefix.
+   Optional prefix to use for metric paths.  See the documentation for :class:`~sprockets_statsd.tornado.Application`
+   for addition notes on setting the path prefix when using the Tornado helpers.
 
 .. envvar:: STATSD_PROTOCOL
 
    The IP protocol to use when connecting to the StatsD server.  You can specify either "tcp" or "udp".  The
    default is "tcp" if it not not configured.
 
-You can fine tune the metric payloads and the connector by setting additional values in the ``statsd`` key of
-:attr:`tornado.web.Application.settings`.  See the :class:`sprockets_statsd.mixins.Application` class
-documentation for a description of the supported settings.
+If you are using the Tornado helper clases, then you can fine tune the metric payloads and the connector by
+setting additional values in the ``statsd`` key of :attr:`tornado.web.Application.settings`.  See the
+:class:`sprockets_statsd.tornado.Application` class documentation for a description of the supported settings.
 
 Reference
 =========
@@ -37,12 +37,12 @@ Reference
 .. autoclass:: sprockets_statsd.statsd.Connector
    :members:
 
-Mixin classes
--------------
-.. autoclass:: sprockets_statsd.mixins.Application
+Tornado helpers
+---------------
+.. autoclass:: sprockets_statsd.tornado.Application
    :members:
 
-.. autoclass:: sprockets_statsd.mixins.RequestHandler
+.. autoclass:: sprockets_statsd.tornado.RequestHandler
    :members:
 
 Internals

example.py

@@ -3,10 +3,10 @@ import logging
 
 from tornado import ioloop, web
 
-import sprockets_statsd.mixins
+import sprockets_statsd.tornado
 
 
-class MyHandler(sprockets_statsd.mixins.RequestHandler,
+class MyHandler(sprockets_statsd.tornado.RequestHandler,
                 web.RequestHandler):
     async def get(self):
         with self.execution_timer('some-operation'):
@@ -17,7 +17,7 @@ class MyHandler(sprockets_statsd.mixins.RequestHandler,
         await asyncio.sleep(1)
 
 
-class Application(sprockets_statsd.mixins.Application, web.Application):
+class Application(sprockets_statsd.tornado.Application, web.Application):
     def __init__(self, **settings):
         super().__init__([web.url('/', MyHandler)], **settings)
 

setup.cfg

@@ -29,9 +29,10 @@ classifiers =
 [options]
 packages = find:
 install_requires =
-    tornado>=5
 
 [options.extras_require]
+tornado =
+    tornado>=5
 dev =
     asynctest==0.13.0
     coverage==5.5
@@ -39,6 +40,7 @@ dev =
     flake8-import-order==0.18.1
     sphinx==3.5.2
     sphinx-autodoc-typehints==1.11.1
+    tornado>=5
     yapf==0.30.0
 
 [options.packages.find]

tests/test_tornado.py

@@ -6,13 +6,13 @@ import typing
 
 from tornado import testing, web
 
-import sprockets_statsd.mixins
+import sprockets_statsd.tornado
 from tests import helpers
 
 ParsedMetric = typing.Tuple[str, float, str]
 
 
-class Handler(sprockets_statsd.mixins.RequestHandler, web.RequestHandler):
+class Handler(sprockets_statsd.tornado.RequestHandler, web.RequestHandler):
     async def get(self):
         with self.execution_timer('execution-timer'):
             await asyncio.sleep(0.1)
@@ -20,7 +20,7 @@ class Handler(sprockets_statsd.mixins.RequestHandler, web.RequestHandler):
         self.write('true')
 
 
-class Application(sprockets_statsd.mixins.Application, web.Application):
+class Application(sprockets_statsd.tornado.Application, web.Application):
     def __init__(self, **settings):
         super().__init__([web.url('/', Handler)], **settings)
 
@@ -62,7 +62,7 @@ class ApplicationTests(AsyncTestCaseWithTimeout):
         self.unsetenv('STATSD_PREFIX')
         self.unsetenv('STATSD_PROTOCOL')
 
-        app = sprockets_statsd.mixins.Application()
+        app = sprockets_statsd.tornado.Application()
         self.assertIn('statsd', app.settings)
         self.assertIsNone(app.settings['statsd']['host'],
                           'default host value should be None')
@@ -76,7 +76,7 @@ class ApplicationTests(AsyncTestCaseWithTimeout):
         self.setenv('STATSD_PREFIX', 'my-service')
         self.setenv('STATSD_PROTOCOL', 'udp')
 
-        app = sprockets_statsd.mixins.Application()
+        app = sprockets_statsd.tornado.Application()
         self.assertIn('statsd', app.settings)
         self.assertEqual('statsd', app.settings['statsd']['host'])
         self.assertEqual(5218, app.settings['statsd']['port'])
@@ -84,17 +84,17 @@ class ApplicationTests(AsyncTestCaseWithTimeout):
         self.assertEqual('udp', app.settings['statsd']['protocol'])
 
     def test_prefix_when_only_service_is_set(self):
-        app = sprockets_statsd.mixins.Application(service='blah')
+        app = sprockets_statsd.tornado.Application(service='blah')
         self.assertIn('statsd', app.settings)
         self.assertEqual(None, app.settings['statsd']['prefix'])
 
     def test_prefix_when_only_environment_is_set(self):
-        app = sprockets_statsd.mixins.Application(environment='whatever')
+        app = sprockets_statsd.tornado.Application(environment='whatever')
         self.assertIn('statsd', app.settings)
         self.assertEqual(None, app.settings['statsd']['prefix'])
 
     def test_prefix_default_when_service_and_environment_are_set(self):
-        app = sprockets_statsd.mixins.Application(environment='development',
+        app = sprockets_statsd.tornado.Application(environment='development',
                                                    service='my-service')
         self.assertIn('statsd', app.settings)
         self.assertEqual('applications.my-service.development',
@@ -105,7 +105,7 @@ class ApplicationTests(AsyncTestCaseWithTimeout):
         self.setenv('STATSD_PORT', '9999')
         self.setenv('STATSD_PREFIX', 'service')
         self.setenv('STATSD_PROTOCOL', 'tcp')
-        app = sprockets_statsd.mixins.Application(
+        app = sprockets_statsd.tornado.Application(
             statsd={
                 'host': 'statsd.example.com',
                 'port': 5218,
@@ -119,13 +119,13 @@ class ApplicationTests(AsyncTestCaseWithTimeout):
 
     def test_that_starting_without_configuration_fails(self):
         self.unsetenv('STATSD_HOST')
-        app = sprockets_statsd.mixins.Application()
+        app = sprockets_statsd.tornado.Application()
         with self.assertRaises(RuntimeError):
             self.run_coroutine(app.start_statsd())
 
     def test_that_starting_without_prefix_fails_by_default(self):
         self.unsetenv('STATSD_PREFIX')
-        app = sprockets_statsd.mixins.Application(statsd={
+        app = sprockets_statsd.tornado.Application(statsd={
             'host': 'statsd.example.com',
             'protocol': 'udp',
         })
@@ -136,7 +136,7 @@ class ApplicationTests(AsyncTestCaseWithTimeout):
 
     def test_starting_without_prefix_on_purpose(self):
         self.unsetenv('STATSD_PREFIX')
-        app = sprockets_statsd.mixins.Application(
+        app = sprockets_statsd.tornado.Application(
             statsd={
                 'allow_no_prefix': True,
                 'host': 'statsd.example.com',
@@ -149,7 +149,7 @@ class ApplicationTests(AsyncTestCaseWithTimeout):
 
     def test_starting_with_calculated_prefix(self):
         self.unsetenv('STATSD_PREFIX')
-        app = sprockets_statsd.mixins.Application(
+        app = sprockets_statsd.tornado.Application(
             environment='development',
             service='my-service',
             statsd={
@@ -164,7 +164,7 @@ class ApplicationTests(AsyncTestCaseWithTimeout):
             self.run_coroutine(app.stop_statsd())
 
     def test_starting_twice(self):
-        app = sprockets_statsd.mixins.Application(statsd={
+        app = sprockets_statsd.tornado.Application(statsd={
             'host': 'localhost',
             'port': '8125',
             'prefix': 'my-service',
@@ -181,14 +181,14 @@ class ApplicationTests(AsyncTestCaseWithTimeout):
             self.run_coroutine(app.stop_statsd())
 
     def test_stopping_without_starting(self):
-        app = sprockets_statsd.mixins.Application(statsd={
+        app = sprockets_statsd.tornado.Application(statsd={
             'host': 'localhost',
             'port': '8125',
         })
         self.run_coroutine(app.stop_statsd())
 
     def test_optional_parameters(self):
-        app = sprockets_statsd.mixins.Application(
+        app = sprockets_statsd.tornado.Application(
             statsd={
                 'host': 'localhost',
                 'port': '8125',
@@ -204,7 +204,7 @@ class ApplicationTests(AsyncTestCaseWithTimeout):
         self.run_coroutine(app.stop_statsd())
 
     def test_starting_with_invalid_protocol(self):
-        app = sprockets_statsd.mixins.Application(statsd={
+        app = sprockets_statsd.tornado.Application(statsd={
             'host': 'localhost',
             'prefix': 'my-service',
             'protocol': 'unknown'
@@ -213,7 +213,7 @@ class ApplicationTests(AsyncTestCaseWithTimeout):
             self.run_coroutine(app.start_statsd())
 
     def test_that_protocol_strings_are_translated(self):
-        app = sprockets_statsd.mixins.Application(statsd={
+        app = sprockets_statsd.tornado.Application(statsd={
             'host': 'localhost',
             'prefix': 'my-service',
             'protocol': 'tcp',
@@ -223,7 +223,7 @@ class ApplicationTests(AsyncTestCaseWithTimeout):
                          app.statsd_connector.processor._ip_protocol)
         self.run_coroutine(app.stop_statsd())
 
-        app = sprockets_statsd.mixins.Application(statsd={
+        app = sprockets_statsd.tornado.Application(statsd={
             'host': 'localhost',
             'prefix': 'my-service',
             'protocol': 'udp',

tox.ini

@@ -4,7 +4,7 @@ toxworkdir = ./build/tox
 
 [testenv]
 deps =
-	.[dev]
+	.[dev,tornado]
 commands =
 	python -m unittest