def onResultCallback(jsonResult):
try:
if isinstance(jsonResult, Exception):
future.set_exception(jsonResult)
return
if 'foraToPythonConversionError' in jsonResult:
future.set_exception(
Exceptions.ForaToPythonConversionError(
str(jsonResult['foraToPythonConversionError'])))
return
if not jsonResult['isException']:
if 'maxBytesExceeded' in jsonResult:
future.set_exception(
Exceptions.ResultExceededBytecountThreshold())
else:
result = self.objectRehydrator.convertJsonResultToPythonObject(
jsonResult['result'])
future.set_result(result)
else:
result = self.objectRehydrator.convertJsonResultToPythonObject(
jsonResult['result'])
future.set_exception(
Exceptions.ComputationError(result,
jsonResult['trace']))
except Exception as e:
# TODO need a better way of wrapping exceptions.
# Alexandros has some ideas here, but this is
# better than the experience without the wrapping
# (which is hanging)
logging.error(
"Rehydration failed: %s\nResult was %s of type %s",
traceback.format_exc(), jsonResult, type(jsonResult))
future.set_exception(Exceptions.ForaToPythonConversionError(e))
def _translate_download_result(self, jsonResult):
if 'foraToPythonConversionError' in jsonResult:
return Exceptions.ForaToPythonConversionError(
str(jsonResult['foraToPythonConversionError'])
)
if not jsonResult['isException']:
if 'maxBytesExceeded' in jsonResult:
return Exceptions.ResultExceededBytecountThreshold()
else:
return self.objectRehydrator.convertJsonResultToPythonObject(jsonResult['result'])
result = self.objectRehydrator.convertJsonResultToPythonObject(jsonResult['result'])
return Exceptions.ComputationError(result, jsonResult['trace'])