def _ebDeferSetUp(self, failure, result):
if failure.check(SkipTest):
result.addSkip(self, self._getReason(failure))
else:
result.addError(self, failure)
result.upDownError("setUp", failure, warn=False, printStatus=False)
if failure.check(KeyboardInterrupt):
result.stop()
def _ebDeferSetUp(self, failure, result):
if failure.check(SkipTest):
result.addSkip(self, self._getSkipReason(self.setUp, failure.value))
else:
result.addError(self, failure)
if failure.check(KeyboardInterrupt):
result.stop()
return self.deferRunCleanups(None, result)
def eb(failure):
if failure.check(errors.NoMethodError):
common.errorRaise("No method '%s' on component '%s'." % (
methodName, p.componentId))
elif failure.check(errors.SleepingComponentError):
common.errorRaise(
"Component '%s' is sleeping." % p.componentId)
else:
common.errorRaise(log.getFailureMessage(failure))
def eb(failure):
# FIXME
if failure.check(errors.NoMethodError) \
or failure.check(flavors.NoSuchMethod):
common.errorRaise("No method '%s' on manager." % methodName)
elif failure.check(errors.RemoteRunError):
common.errorRaise(log.getFailureMessage(failure))
else:
common.errorRaise(log.getFailureMessage(failure))
def eb(failure):
# FIXME
if failure.check(errors.NoMethodError):
common.errorRaise("No method '%s' on worker '%s'." % (methodName, workerName))
elif failure.check(errors.SleepingComponentError):
common.errorRaise("Component '%s' is sleeping." % p.componentId)
elif failure.check(errors.RemoteRunError):
common.errorRaise(log.getFailureMessage(failure))
else:
common.errorRaise(log.getFailureMessage(failure))
def _error_handler(self, failure):
if failure.check(tw_error.ConnectionRefusedError):
self._on_disconnected()
self.reconnect()
raise NotConnectedError("Database connection refused.")
elif (failure.check(httpclient.RequestError) and
failure.value.cause and
isinstance(failure.value.cause, tw_error.ConnectionDone)):
self._on_disconnected()
self.reconnect()
raise NotConnectedError("Connection to the database was lost.")
else:
failure.raiseException()
def _sendErrorAnswer(self, failure, qid):
del self._theirQuestions[qid]
if failure.check(KnownError):
body = failure.value[0]
self._sendQANFrame(KnownErrorAnswer(body, qid))
elif failure.check(defer.CancelledError):
self._sendQANFrame(UnknownErrorAnswer("CancelledError", qid))
else:
self._logError("Peer's Question #%d caused uncaught "
"exception" % (qid,), failure)
# We intentionally do not reveal information about the
# exception.
self._sendQANFrame(UnknownErrorAnswer("Uncaught exception", qid))
def on_failure(self, failure, request):
"""
Handle exceptions raised during RestResource processing
:param failure: ``twisted.python.failure.Failure`` instance
:param request: ``twisted.web.server.Request`` instance
"""
fq_name = self.__module__ + '.' + self.__class__.__name__
file_path = abspath(inspect.getfile(self.__class__))
if failure.check(CancelledError):
# the request / deferred chain has been cancelled early.
# doesn't matter if we respond no one is listening.
rstr = err = 'Request was cancelled'
elif failure.check(_DefGen_Return):
failure.printBriefTraceback()
err = dedent('''
Received a Deferred Generator Response from Resource (%s)
in the method: [%s] ....................................
This indicates you may be missing a yield statement and
the decorator `@defer.inlineCallbacks`.
File: %s
If you do not have a yield statement, you should use a regular
`return` statement and remove `defer.returnValue()`
''' % (fq_name, request.method_called, file_path)).strip()
log.err(err + ' - ' + failure.getErrorMessage())
rstr = self.ERROR_CLASS(
INTERNAL_SERVER_ERROR,
err,
failure.getErrorMessage(),
is_logged=False
).render(request)
else:
log.err('Exception in Resource (%s) [%s] <%s> - %s' % (
fq_name, request.method_called, file_path, failure.getErrorMessage()))
failure.printTraceback()
rstr = self.ERROR_CLASS(
INTERNAL_SERVER_ERROR,
'Unhandled Error',
'Exception in Resource (%s) [%s] <%s> - %s' % (
fq_name, request.method_called, file_path, failure.getTraceback()),
is_logged=False
).render(request)
if request.finished:
return
request.write(rstr)
request.finish()
def eb(failure):
if failure.check(errors.ComponentMoodError,
errors.BusyComponentError):
common.errorRaise("Component '%s' is in the wrong mood." %
self.parentCommand.componentId)
else:
common.errorRaise(log.getFailureMessage(failure))
def expected(self, failure):
if self.errors is None:
return True
for error in self.errors:
if failure.check(error):
return True
return False
def _cbDeferRunCleanups(self, cleanupResults, result):
for flag, failure in cleanupResults:
if flag == defer.FAILURE:
result.addError(self, failure)
if failure.check(KeyboardInterrupt):
result.stop()
self._passed = False
def errback(failure):
try:
if failure.check(ServerMessage):
self.root.runCallback('msg', failure.getErrorMessage())
self.root._failure()
finally:
self._startCall()
def _process(self, failure, data_cache, exceptions):
for (exc, key, max_count, init_backoff,
incr_backoff, max_backoff) in exceptions:
if failure.check(*exc) is not None:
count = data_cache.get(key, 0) + 1
if max_count is not None and count >= max_count:
zc.async.utils.tracelog.warning(
'Retry policy for job %r is not retrying after %d '
'counts of %s occurrences', self.parent, count, key)
return False
elif count==1 or not count % self.log_every:
zc.async.utils.tracelog.warning(
'Retry policy for job %r requests another attempt '
'after %d counts of %s occurrences', self.parent,
count, key, exc_info=True)
backoff = min(max_backoff,
(init_backoff + (count-1) * incr_backoff))
if backoff:
time.sleep(backoff)
data_cache[key] = count
data_cache['last_' + key] = failure
if 'first_active' not in data_cache:
data_cache['first_active'] = self.parent.active_start
return True
return False
def _defaultErrback(self, failure, request):
if failure.check(errors.UnknownComponentError,
errors.NotAuthenticatedError) is None:
# If something else went wrong, we want to disconnect the client
# and give them a 500 Internal Server Error.
self._handleUnauthorized(request, http.INTERNAL_SERVER_ERROR)
return failure
def _eb(failure):
if failure.check(*expectedFailures):
return failure.value
else:
output = ('\nExpected: %r\nGot:\n%s'
% (expectedFailures, str(failure)))
raise self.failureException(output)
def testVERIFYBadKeyFailed(failure, msg, node, nKu, host, port):
if failure.check('flud.protocol.FludCommUtil.NotFoundException'):
print "%s" % msg
return testDELETEBadKey(nKu, node, host, port)
else:
print "\nVERIFYBadKey expected NotFoundException," \
" but got a different failure:"
raise failure
def testSTORESmallFailed(failure, msg, node, nKu, host, port):
if failure.check('flud.protocol.FludCommUtil.BadCASKeyException'):
print "%s" % msg
return testSTOREBadKeyLarge(nKu, node, host, port)
else:
print "\nSTORESmall expected BadCASKeyException," \
" but got a different failure:"
raise failure
def testRETRIEVENotFoundFailed(failure, msg, node, nKu, host, port):
if failure.check('flud.protocol.FludCommUtil.NotFoundException'):
print "%s" % msg
return testRETRIEVEIllegalPath(nKu, node, host, port)
else:
print "\nRETRIEVENotFound expected NotFoundException," \
" but got a different failure:"
raise failure
def matchException(failure):
for errorState, backOff in self.backOffs.iteritems():
if 'errorTypes' not in backOff:
continue
if failure.check(*backOff['errorTypes']):
return errorState
return 'other'
def testVERIFYBadLengthFailed(failure, msg, node, nKu, host, port):
if failure.check('flud.protocol.FludCommUtil.BadRequestException'):
print "%s" % msg
return testVERIFYBadKey(nKu, node, host, port)
else:
print "\nVERIFYBadLength expected BadRequestException," \
" but got a different failure:"
raise failure
def errback(failure):
if not self.currentlyAsking:
return
self.currentlyAsking = False
if failure.check(ServerMessage):
self.root.runCallback('msg', failure.getErrorMessage())
self.root._failure()
self._startCall()
def unexpectedError(self, failure, request=None):
# If the sub-process exited abnormally, the stderr it produced is
# probably a much more interesting traceback than the one attached to
# the Failure we've been passed.
traceback = None
if failure.check(error.ProcessTerminated):
traceback = getattr(failure, "error", None)
if traceback is None:
traceback = failure.getTraceback()
errorlog.globalErrorUtility.raising((failure.type, failure.value, traceback), request)
def errback(failure, exp_error=None, exp_class=None,
result=None, exception=None):
if exp_class:
self.assertTrue(failure.check(exp_class) is not None)
if exp_error:
self.assertEqual(exp_error, failure.value)
if exception:
raise exception
return result or failure
def expected(self, failure):
"""
@param failure: A L{twisted.python.failure.Failure}.
@return: C{True} if C{failure} is expected, C{False} otherwise.
"""
if self.errors is None:
return True
for error in self.errors:
if failure.check(error):
return True
return False
def _defaultErrback(self, failure, request):
if failure.check(errors.NotAuthenticatedError) is None:
# If something else went wrong, we want to either disconnect the
# client and give them a 500 Internal Server Error or just allow
# them, depending on the configuration.
self.debug("Authorization request failed: %s",
log.getFailureMessage(failure))
if self._allowDefault:
self.debug("Authorization failed, but allowing anyway")
return None
self._handleUnauthorized(request, http.INTERNAL_SERVER_ERROR)
return failure
def processing_failed(failure, error_handlers):
# The failure processor writes to the request. If the
# request is already finished we should suppress failure
# processing. We don't return failure here because there
# is no way to surface this failure to the user if the
# request is finished.
if request_finished[0]:
if not failure.check(defer.CancelledError):
log.err(failure, "Unhandled Error Processing Request.")
return
# If there are no more registered handlers, apply some defaults
if len(error_handlers) == 0:
if failure.check(HTTPException):
he = failure.value
request.setResponseCode(he.code)
resp = he.get_response({})
for header, value in resp.headers:
request.setHeader(ensure_utf8_bytes(header), ensure_utf8_bytes(value))
return ensure_utf8_bytes(he.get_body({}))
else:
request.processingFailed(failure)
return
error_handler = error_handlers[0]
# Each error handler is a tuple of (list_of_exception_types, handler_fn)
if failure.check(*error_handler[0]):
d = defer.maybeDeferred(self._app.execute_error_handler,
error_handler[1],
request,
failure)
return d.addErrback(processing_failed, error_handlers[1:])
return processing_failed(failure, error_handlers[1:])
def handle_unhandled(failure):
# If there are no more registered handlers, apply some defaults
if failure.check(HTTPException):
he = failure.value
request.setResponseCode(he.code)
resp = he.get_response({})
for header, value in resp.headers:
request.setHeader(ensure_utf8_bytes(header), ensure_utf8_bytes(value))
return ensure_utf8_bytes(he.get_body({}))
else:
request.processingFailed(failure)
return
def handle_various_errors(failure, vin_or_report, _id): # Do I actually need vin_or_report? if failure.check(NoBalanceError): balance_ok = False print "No balance remaining: no more VINs will be run." error_items['not_attempted'].append(_id) elif failure.check(InvalidVINError): print _id + " is an invalid " + vin_or_report error_items['invalid_vin'].append(_id) elif failure.check(FailNMVTISError): print _id + " was not run, NMVTIS was not available." error_items['fail_nmvtis'].append(_id) elif failure.check(NoRecordsError): print _id + " did not exist in the NMVTIS database." error_items['no_record'].append(_id) else: failure.raiseException()
def _handle_failure(self, failure):
if self._finished:
if failure.check(CancelledError):
return None # we cancel pending tasks on finish.
else:
# Cannot really do anything with this failure
# since we've already called back to the user.
return failure
else:
# Lets remember the failure and iterate. This
# will cause the traversal to finish and
# all other pending operations to be cancelled.
self._caught_failure = failure
self._iterate()
return None
def _response_eb(self, failure, first, last, retries):
"""Error back for HTTP errors"""
if not self._paused:
# if it's not last retry and failure wasn't our fault we retry
if (retries < FLAGS.get_entries_max_retries and
not failure.check(HTTPClientError)):
logging.info("Retrying get-entries for range <%d, %d> retry: %d"
% (first, last, retries))
d = task.deferLater(self._reactor,
self._calculate_retry_delay(retries),
self._fetch_parsed_entries,
first, last)
d.addErrback(self._response_eb, first, last, retries + 1)
return d
else:
self.__fail(failure)
def _ebLookup(self, failure, sport, cport):
if failure.check(IdentError):
self.sendLine('%d, %d : ERROR : %s' % (sport, cport, failure.value))
else:
log.err(failure)
self.sendLine('%d, %d : ERROR : %s' % (sport, cport, IdentError(failure.value)))
def _ebDeferTearDown(self, failure, result):
result.addError(self, failure)
if failure.check(KeyboardInterrupt):
result.stop()
result.upDownError('tearDown', failure, warn=False, printStatus=True)
self._passed = False
def _eb(failure):
if failure.check(*expectedFailures):
return failure.value
else:
raise self.failureException("%r not expected (%r)" %
(failure, expectedFailures))
def _ebDeferTearDown(self, failure, result):
result.addError(self, failure)
if failure.check(KeyboardInterrupt):
result.stop()
self._passed = False
