[Findit] Refactoring monitor swarming task pipelines

appengine/findit/model/wf_swarming_task.py

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 from collections import defaultdict
 
 from google.appengine.ext import ndb
 
 from model.base_build_model import BaseBuildModel
-from model import analysis_status
+from model.base_swarming_task import BaseSwarmingTask
 
 
-class WfSwarmingTask(BaseBuildModel):
+class WfSwarmingTask(BaseBuildModel, BaseSwarmingTask):
   """Represents a swarming task for a failed step.
 
   'Wf' is short for waterfall.
   """
-  # The id of the Swarming task scheduled or running on Swarming Server.
-  task_id = ndb.StringProperty(indexed=False)
-
-  # A dict to keep track of running information for each test:
-  # number of total runs, number of each status (such as 'SUCCESS' or 'FAILED')
-  tests_statuses = ndb.JsonProperty(indexed=False, compressed=True)
-
-  # The status of the swarming task.
-  status = ndb.IntegerProperty(
-      default=analysis_status.PENDING, indexed=False)
-
-  # The revision of the failed build.
-  build_revision = ndb.StringProperty(indexed=False)
-
-  # Time when the task is created.
-  created_time = ndb.DateTimeProperty(indexed=True)
-  # Time when the task is started.
-  started_time = ndb.DateTimeProperty(indexed=False)
-  # Time when the task is completed.
-  completed_time = ndb.DateTimeProperty(indexed=False)
-
-  # parameters need to be stored and analyzed later.
-  parameters = ndb.JsonProperty(indexed=False, compressed=True)
 
   @property
   def classified_tests(self):
     """Classification of tests into lists of reliable and flaky tests.
 
     example format would be:
     {
         'flaky_tests': ['test1', 'test2', ...],
         'reliable_tests': ['test3', ...],
         'unknown_tests': ['test4', ...]
@@ skipping 32 matching lines @@
             master_name, builder_name, build_number, step_name))
     task.parameters = task.parameters or {}
     task.tests_statuses = task.tests_statuses or {}
     return task
 
   @staticmethod
   def Get(
       master_name, builder_name, build_number, step_name):  # pragma: no cover
     return WfSwarmingTask._CreateKey(
         master_name, builder_name, build_number, step_name).get()