def _JsonFromExecution(execution):
if hasattr(execution, '_isolate_server'):
isolate_server = execution._isolate_server
else:
isolate_server = 'https://isolateserver.appspot.com'
isolate_hash = execution._isolate_hash
if hasattr(execution, '_results_filename'):
results_filename = execution._results_filename
else:
results_filename = 'chartjson-output.json'
return read_value.RetrieveOutputJson(
isolate_server, isolate_hash, results_filename)
def __call__(self, task, _, accumulator):
# TODO(dberris): Validate!
# Outline:
# - Retrieve the data given the options.
# - Parse the data from the result file.
# - Update the status and payload with an action.
if task.status in {'completed', 'failed'}:
return None
dep = accumulator.get(task.dependencies[0], {})
isolate_server = dep.get('isolate_server')
isolate_hash = dep.get('isolate_hash')
logging.debug('Dependency Data: %s', dep)
dependency_status = dep.get('status', 'failed')
if dependency_status == 'failed':
return self.CompleteWithError(
task, 'DependencyFailed',
'Task dependency "%s" ended in failed status.' %
(task.dependencies[0], ))
if dependency_status in {'pending', 'ongoing'}:
return None
try:
data = read_value_quest.RetrieveOutputJson(
isolate_server, isolate_hash,
task.payload.get('results_filename'))
if task.payload.get('mode') == 'histogram_sets':
return self.HandleHistogramSets(task, data)
elif task.payload.get('mode') == 'graph_json':
return self.HandleGraphJson(task, data)
else:
return self.CompleteWithError(
task, 'UnsupportedMode',
('Pinpoint only currently supports reading '
'HistogramSets and GraphJSON formatted files.'))
except (errors.FatalError, errors.InformationalError,
errors.RecoverableError) as e:
return self.CompleteWithError(task, type(e).__name__, e.message)