[Findit] Fracas crash triage dashboard

appengine/findit/handlers/crash/fracas_dashboard.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 base64
+from datetime import datetime
+from datetime import time
+from datetime import timedelta
+import json
+
+from google.appengine.ext import ndb
+
+from common import time_util
+from common.base_handler import BaseHandler
+from common.base_handler import Permission
+from model.crash.fracas_crash_analysis import FracasCrashAnalysis
+from model import triage_status
+
+
+_EQUAL_FILTER_TO_CONVERTER = {
+    'found_suspects': lambda x: bool(int(x)),
+    'has_regression_range': lambda x: bool(int(x)),
+    'suspected_cls_triage_status': lambda x: x,
+    'regression_range_triage_status': lambda x: x,
+}
+
+_DEFAULT_DISPLAY_COUNT = 500
+
+
+class FracasDashBoard(BaseHandler):
+  PERMISSION_LEVEL = Permission.ANYONE
+
+  def HandleGet(self):
+    """Shows a list of Findit try job results and statuses in an HTML page."""

[stgao, 2016/06/08 17:53:45]

This is not updated. This one is for crash, not for try-job for waterfall
failures :)

[Sharu Jiang, 2016/06/09 06:13:28]

Oops, changed it.

+    midnight_today = datetime.combine(datetime.utcnow(), time.min)
+    midnight_yesterday = midnight_today - timedelta(days=1)
+    midnight_tomorrow = midnight_today + timedelta(days=1)
+
+    start = self.request.get('start_date')
+    end = self.request.get('end_date')
+    start_date = (datetime.strptime(start, '%Y-%m-%d') if start else
+                  midnight_yesterday)
+    end_date = (datetime.strptime(end, '%Y-%m-%d') if end else
+                midnight_tomorrow)
+
+    if start or not end:  # pragma: no branch
+      # If a start date is specified, get everything since then.
+      filters = [
+          FracasCrashAnalysis.requested_time >= start_date,
+          FracasCrashAnalysis.requested_time < end_date
+      ]
+    else:  # pragma: no cover
+      # If no start date specified, then get everything up until end_date.
+      start_date = None
+      filters = [
+          FracasCrashAnalysis.requested_time < end_date
+      ]
+
+    for equal_filter, converter in _EQUAL_FILTER_TO_CONVERTER.iteritems():
+      if self.request.get(equal_filter, None) is None:
+        continue
+
+      value = converter(self.request.get(equal_filter))
+      if value == triage_status.TRIAGED:
+        filters.append(ndb.OR(
+            getattr(FracasCrashAnalysis, equal_filter) ==
+            triage_status.TRIAGED,
+            getattr(FracasCrashAnalysis, equal_filter) ==
+            triage_status.TRIAGED_CORRECT,
+            getattr(FracasCrashAnalysis, equal_filter) ==
+            triage_status.TRIAGED_INCORRECT))
+      else:
+        filters.append(
+            getattr(FracasCrashAnalysis, equal_filter) ==
+            converter(self.request.get(equal_filter)))
+
+    if self.request.get('count'):
+      count = int(self.request.get('count'))
+    else:
+      count = _DEFAULT_DISPLAY_COUNT
+
+    # TODO(katesonia): Add pagination here.
+    fracas_crash_list = FracasCrashAnalysis.query(ndb.AND(*filters)).order(
+        FracasCrashAnalysis.requested_time).fetch(count)
+    fracas_crashes = []
+
+    for crash in fracas_crash_list:
+      display_data = {
+          'signature': crash.signature,
+          'version': crash.crashed_version,
+          'channel': crash.channel,
+          'platform': crash.platform,
+          'regression_range': ('' if not crash.has_regression_range else
+                               crash.result['regression_range']),
+          'suspected_cls':crash.result['suspected_cls'],
+          'suspected_project': crash.result['suspected_project'],
+          'suspected_components': crash.result['suspected_components'],
+          'stack_trace': crash.stack_trace,
+          'historical_metadata': json.dumps(crash.historical_metadata),
+          'crash_identifiers': base64.b64encode(

[stgao, 2016/06/08 17:53:45]

Why we need this? For identifying the crash?

If that is the case, we could use the key of the crash model instead.

[Sharu Jiang, 2016/06/09 06:13:28]

Done.

+              json.dumps(crash.crash_identifiers))
+      }
+      fracas_crashes.append(display_data)
+
+    data = {
+        'start_date': time_util.FormatDatetime(start_date),
+        'end_date': time_util.FormatDatetime(end_date),
+        'found_suspects': self.request.get('found_suspects', '-1'),
+        'has_regression_range': self.request.get('has_regression_range', '-1'),
+        'suspected_cls_triage_status': self.request.get(
+            'suspected_cls_triage_status', '-1'),
+        'regression_range_triage_status': self.request.get(
+            'regression_range_triage_status', '-1'),
+        'fracas_crashes': fracas_crashes
+    }
+
+    return {
+        'template': 'crash/fracas_dashboard.html',
+        'data': data
+    }