Add Task Model

Add CRUD method for Task Model

Add Tests for this model

Add consts status for this model

Add TaskNotFound exception

rally/consts.py

@@ -0,0 +1,68 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2013: Mirantis Inc.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+There is a lot of situation when we would like to work with Enum or consts.
+E.g. work around Tasks. We would like to use Enum in DB to store status of task
+and also in migration that creates DB and in buisness logic to set some status
+so to avoid copy paste or dirrect usage of enums values we create singltons
+for each enum. (e.g TaskStatus)
+"""
+
+import itertools
+
+from rally import exceptions
+
+
+class _Immutable(object):
+    def __setattr__(self, key, value):
+        raise exceptions.ImmutableException()
+
+
+class _Enum(object):
+    def __iter__(self):
+        for k, v in itertools.imap(lambda x: (x, getattr(self, x)), dir(self)):
+            if not k.startswith('_') and isinstance(v, str):
+                yield v
+
+
+class _TaskStatus(_Immutable, _Enum):
+    INIT = 'init'
+    CLEANUP = 'cleanup'
+    FINISHED = 'finished'
+
+    REPO_TOOL_GETTING_REPOS = 'repo_tool->getting_repos'
+
+    DEPLOY_CREATING_VENV = 'deploy->create_venv_to_deploy_openstack'
+    DEPLOY_BUILDING_OPENSTACK_IN_VENV = 'deploy->building_openstack_in_venv'
+    DEPLOY_BUILDING_IMAGE = 'deploy->building_images_with_openstack'
+    DEPLOY_BUILDING_OPENSTACK = 'deploy->building_openstack'
+    DEPLOY_STARTING_OPENSTACK = 'deply->starting_openstack'
+    DEPLOY_FINISHED = 'deploy->finished'
+
+    VM_PROVIDER_UPLOADING_IMAGE = 'vm_provider->uploading_vm_image'
+    VM_PROVIDER_DESTROYING_IMAGE = 'vm_provider->destroying_image'
+    VM_PROVIDER_GETTING_VMS = 'vm_provide->:getting_vms'
+    VM_PROVIDER_DESTROYING_VMS = 'vm_provider->destroying_vms'
+
+    TEST_TOOL_PATCHING_OPENSTACK = 'test_tool->patching_openstack'
+    TEST_TOOL_VERIFY_OPENSTACK = 'test_tool->verify_openstack'
+    TEST_TOOL_BENCHMARKING = 'test_tool->benchmarking'
+    TEST_TOOL_PROCESSING_RESULTS = 'test_tool->result_processing'
+
+
+TaskStatus = _TaskStatus()

tox.ini

@@ -25,7 +25,7 @@ commands = python setup.py testr --coverage --testr-args='{posargs}'
 downloadcache = ~/cache/pip
 
 [flake8]
-ignore = H302
+ignore = H302,E126
 show-source = true
 builtins = _
 exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,tools