Support dot character in queue's name

Now Zaqar doesn't support '.' in queue name.
This feature will introduce the support for this.

Change-Id: Id698f043c0b1bc50567aba149e2235d9443bc105
Closes-Bug: #1695848

releasenotes/notes/support-dot-in-queue-name-bd2b3d523f55451f.yaml

@@ -0,0 +1,3 @@
+---
+features:
+  - Support dot character in queue's name, like 'service.test_queue'.

zaqar/tests/unit/transport/wsgi/v2_0/test_queue_lifecycle.py

@@ -136,6 +136,10 @@ class TestQueueLifecycleMongoDB(base.V2Base):
                           headers=self.headers)
         self.assertEqual(falcon.HTTP_400, self.srmock.status)
 
+        self.simulate_put(self.queue_path + '/Service.test_queue',
+                          headers=self.headers)
+        self.assertEqual(falcon.HTTP_201, self.srmock.status)
+
     def test_project_id_restriction(self):
         muvluv_queue_path = self.queue_path + '/Muv-Luv'
 

zaqar/transport/validation.py

@@ -91,7 +91,7 @@ _TRANSPORT_LIMITS_GROUP = 'transport'
 
 # NOTE(kgriffs): Don't use \w because it isn't guaranteed to match
 # only ASCII characters.
-QUEUE_NAME_REGEX = re.compile('^[a-zA-Z0-9_\-]+$')
+QUEUE_NAME_REGEX = re.compile('^[a-zA-Z0-9_\-.]+$')
 QUEUE_NAME_MAX_LEN = 64
 PROJECT_ID_MAX_LEN = 256