Make profiler.clean() public method

Horizon dashboard has a profiler plugin which calls profiler.init
method at
 openstack_dashboard/contrib/developer/profiler/middleware.py
line 64. This creates a profiler and picks a new base_id. The only
way to remove this profiler and stop using this base_id is to call
profiler._clean() method. So this patch changes _clean() to clean()
so it becomes a public method.

Change-Id: Idec7ee240bc7f508aeebcba374a9673652b1cc72
Related-Bug: #1777486

osprofiler/profiler.py

@@ -31,7 +31,7 @@ from osprofiler import notifier
 __local_ctx = threading.local()
 
 
-def _clean():
+def clean():
     __local_ctx.profiler = None
 
 

osprofiler/tests/unit/test_profiler.py

@@ -28,7 +28,7 @@ from osprofiler.tests import test
 class ProfilerGlobMethodsTestCase(test.TestCase):
 
     def test_get_profiler_not_inited(self):
-        profiler._clean()
+        profiler.clean()
         self.assertIsNone(profiler.get())
 
     def test_get_profiler_and_init(self):
@@ -40,7 +40,7 @@ class ProfilerGlobMethodsTestCase(test.TestCase):
         self.assertEqual(p.get_id(), "2")
 
     def test_start_not_inited(self):
-        profiler._clean()
+        profiler.clean()
         profiler.start("name")
 
     def test_start(self):
@@ -50,7 +50,7 @@ class ProfilerGlobMethodsTestCase(test.TestCase):
         p.start.assert_called_once_with("name", info="info")
 
     def test_stop_not_inited(self):
-        profiler._clean()
+        profiler.clean()
         profiler.stop()
 
     def test_stop(self):

osprofiler/tests/unit/test_web.py

@@ -31,8 +31,8 @@ class WebTestCase(test.TestCase):
 
     def setUp(self):
         super(WebTestCase, self).setUp()
-        profiler._clean()
-        self.addCleanup(profiler._clean)
+        profiler.clean()
+        self.addCleanup(profiler.clean)
 
     def test_get_trace_id_headers_no_hmac(self):
         profiler.init(None, base_id="y", parent_id="z")
@@ -61,10 +61,10 @@ class WebTestCase(test.TestCase):
 class WebMiddlewareTestCase(test.TestCase):
     def setUp(self):
         super(WebMiddlewareTestCase, self).setUp()
-        profiler._clean()
+        profiler.clean()
         # it's default state of _ENABLED param, so let's set it here
         web._ENABLED = None
-        self.addCleanup(profiler._clean)
+        self.addCleanup(profiler.clean)
 
     def tearDown(self):
         web.enable()

osprofiler/web.py

@@ -131,4 +131,4 @@ class WsgiMiddleware(object):
             with profiler.Trace(self.name, info=info):
                 return request.get_response(self.application)
         finally:
-            profiler._clean()
+            profiler.clean()