[Findit] Refactoring monitor swarming task pipelines

appengine/findit/waterfall/process_flake_swarming_task_result_pipeline.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.
 
 import logging
 
-from collections import defaultdict
-
 from model.flake.flake_swarming_task import FlakeSwarmingTask
 from model.flake.master_flake_analysis import DataPoint
 from model.flake.master_flake_analysis import MasterFlakeAnalysis
 from waterfall.process_base_swarming_task_result_pipeline import (
     ProcessBaseSwarmingTaskResultPipeline)
 
 
 class ProcessFlakeSwarmingTaskResultPipeline(
     ProcessBaseSwarmingTaskResultPipeline):
   """A pipeline for monitoring swarming task and processing task result.
@@ skipping 18 matching lines @@
       test_name (string): Name of test of swarming rerun.
       version_number (int): The version to save analysis results and ` to.
 
     Returns:
       tests_statuses (dict): A dict of different statuses for each test.
 
     Currently for each test, we are saving number of total runs,
     number of succeeded runs and number of failed runs.
     """
 
-    tests_statuses = defaultdict(lambda: defaultdict(int))
-
-    if not output_json:
-      return tests_statuses
-
-    for iteration in output_json.get('per_iteration_data'):
-      for name, test_runs in iteration.iteritems():
-        tests_statuses[name]['total_run'] += len(test_runs)
-        for test_run in test_runs:
-          tests_statuses[name][test_run['status']] += 1
+    tests_statuses = super(ProcessFlakeSwarmingTaskResultPipeline,
+                           self)._CheckTestsRunStatuses(output_json)
 
     # Should query by test name, because some test has dependencies which
     # are also run, like TEST and PRE_TEST in browser_tests.
     tries = tests_statuses.get(test_name, {}).get('total_run', 0)
     successes = tests_statuses.get(test_name, {}).get('SUCCESS', 0)
 
     if tries > 0:
       pass_rate = successes * 1.0 / tries
     else:
       pass_rate = -1  # Special value to indicate test is not existing.
 
     master_flake_analysis = MasterFlakeAnalysis.GetVersion(
         master_name, builder_name, master_build_number, step_name, test_name,
         version=version_number)
     logging.info(
         'Updating MasterFlakeAnalysis data %s/%s/%s/%s/%s',
-        master_name, builder_name, build_number, step_name, test_name)
+        master_name, builder_name, master_build_number, step_name, test_name)
     logging.info('MasterFlakeAnalysis %s version %s',
                  master_flake_analysis, master_flake_analysis.version_number)
 
     data_point = DataPoint()
     data_point.build_number = build_number
     data_point.pass_rate = pass_rate
     master_flake_analysis.data_points.append(data_point)
 
     flake_swarming_task = FlakeSwarmingTask.Get(
         master_name, builder_name, build_number, step_name, test_name)
     flake_swarming_task.tries = tries
     flake_swarming_task.successes = successes
     flake_swarming_task.put()
 
     results = flake_swarming_task.GetFlakeSwarmingTaskData()
     # TODO(lijeffrey): Determine whether or not this flake swarming task
     # was a cache hit (already ran results for more iterations than were
     # requested) and update results['cache_hit'] accordingly.
     master_flake_analysis.swarming_rerun_results.append(results)
     master_flake_analysis.put()
+
     return tests_statuses
 
   def _GetArgs(self, master_name, builder_name, build_number,
                step_name, *args):
     master_build_number = args[0]
     test_name = args[1]
     version_number = args[2]
     return (master_name, builder_name, build_number, step_name,
             master_build_number, test_name, version_number)
 
   # Unused Argument - pylint: disable=W0612,W0613
+  # Arguments number differs from overridden method - pylint: disable=W0221
   def _GetSwarmingTask(self, master_name, builder_name, build_number,
                        step_name, master_build_number, test_name, _):
-    # Get the appropriate kind of Swarming Task (Flake).
-    return FlakeSwarmingTask.Get(master_name, builder_name,
-                                 build_number, step_name, test_name)
+    # Gets the appropriate kind of swarming task (FlakeSwarmingTask).
+    return FlakeSwarmingTask.Get(master_name, builder_name, build_number,
+                                 step_name, test_name)