def test_retry_with_max_retries(self):
responses = [
exceptions.VimSessionOverLoadException(None),
exceptions.VimSessionOverLoadException(None),
exceptions.VimSessionOverLoadException(None)
]
def func(*args, **kwargs):
response = responses.pop(0)
if isinstance(response, Exception):
raise response
return response
retry = api.RetryDecorator(2, 0, 0,
(exceptions.VimSessionOverLoadException, ))
self.assertRaises(exceptions.VimSessionOverLoadException, retry(func))
self.assertTrue(retry._retry_count == 2)
def test_retry_with_expected_exceptions(self):
result = "RESULT"
responses = [
exceptions.VimSessionOverLoadException(None),
exceptions.VimSessionOverLoadException(None), result
]
def func(*args, **kwargs):
response = responses.pop(0)
if isinstance(response, Exception):
raise response
return response
sleep_time_incr = 1
retry_count = 2
retry = api.RetryDecorator(10, sleep_time_incr, 10,
(exceptions.VimSessionOverLoadException, ))
self.assertEqual(result, retry(func)())
self.assertTrue(retry._retry_count == retry_count)
self.assertEqual(retry_count * sleep_time_incr, retry._sleep_time)
def vim_request_handler(managed_object, **kwargs):
"""Handler for VIM API calls.
Invokes the API and parses the response for fault checking and
other errors.
:param managed_object: managed object reference argument of the
API call
:param kwargs: keyword arguments of the API call
:returns: response of the API call
:raises: VimException, VimFaultException, VimAttributeException,
VimSessionOverLoadException, VimConnectionException
"""
try:
if isinstance(managed_object, str):
# For strings, use string value for value and type
# of the managed object.
managed_object = vim_util.get_moref(
managed_object, managed_object)
request = getattr(self.client.service, attr_name)
LOG.debug(_("Invoking %(attr_name)s on %(moref)s."), {
'attr_name': attr_name,
'moref': managed_object
})
response = request(managed_object, **kwargs)
if (attr_name.lower() == 'retrievepropertiesex'):
Vim._retrieve_properties_ex_fault_checker(response)
LOG.debug(
_("Invocation of %(attr_name)s on %(moref)s "
"completed successfully."), {
'attr_name': attr_name,
'moref': managed_object
})
return response
except exceptions.VimFaultException:
# Catch the VimFaultException that is raised by the fault
# check of the SOAP response.
raise
except suds.WebFault as excep:
doc = excep.document
detail = doc.childAtPath('/Envelope/Body/Fault/detail')
fault_list = []
if detail:
for child in detail.getChildren():
fault_list.append(child.get('type'))
raise exceptions.VimFaultException(
fault_list,
_("Web fault in %s.") % attr_name, excep)
except AttributeError as excep:
raise exceptions.VimAttributeException(
_("No such SOAP method %s.") % attr_name, excep)
except (httplib.CannotSendRequest, httplib.ResponseNotReady,
httplib.CannotSendHeader) as excep:
raise exceptions.VimSessionOverLoadException(
_("httplib error in %s.") % attr_name, excep)
except (urllib2.URLError, urllib2.HTTPError) as excep:
raise exceptions.VimConnectionException(
_("urllib2 error in %s.") % attr_name, excep)
except Exception as excep:
# TODO(vbala) should catch specific exceptions and raise
# appropriate VimExceptions.
# Socket errors which need special handling; some of these
# might be caused by server API call overload.
if (six.text_type(excep).find(ADDRESS_IN_USE_ERROR) != -1
or six.text_type(excep).find(CONN_ABORT_ERROR)) != -1:
raise exceptions.VimSessionOverLoadException(
_("Socket error in %s.") % attr_name, excep)
# Type error which needs special handling; it might be caused
# by server API call overload.
elif six.text_type(excep).find(RESP_NOT_XML_ERROR) != -1:
raise exceptions.VimSessionOverLoadException(
_("Type error in %s.") % attr_name, excep)
else:
raise exceptions.VimException(
_("Exception in %s.") % attr_name, excep)
def request_handler(managed_object, **kwargs):
"""Handler for vSphere API calls.
Invokes the API and parses the response for fault checking and
other errors.
:param managed_object: managed object reference argument of the
API call
:param kwargs: keyword arguments of the API call
:returns: response of the API call
:raises: VimException, VimFaultException, VimAttributeException,
VimSessionOverLoadException, VimConnectionException
"""
try:
if isinstance(managed_object, str):
# For strings, use string value for value and type
# of the managed object.
managed_object = vim_util.get_moref(managed_object,
managed_object)
if managed_object is None:
return
request = getattr(self.client.service, attr_name)
response = request(managed_object, **kwargs)
if (attr_name.lower() == 'retrievepropertiesex'):
Service._retrieve_properties_ex_fault_checker(response)
return response
except exceptions.VimFaultException:
# Catch the VimFaultException that is raised by the fault
# check of the SOAP response.
raise
except suds.WebFault as excep:
fault_string = None
if excep.fault:
fault_string = excep.fault.faultstring
doc = excep.document
detail = None
if doc is not None:
detail = doc.childAtPath('/detail')
if not detail:
# NOTE(arnaud): this is needed with VC 5.1
detail = doc.childAtPath('/Envelope/Body/Fault/detail')
fault_list = []
details = {}
if detail:
for fault in detail.getChildren():
fault_list.append(fault.get("type"))
for child in fault.getChildren():
details[child.name] = child.getText()
raise exceptions.VimFaultException(fault_list, fault_string,
excep, details)
except AttributeError as excep:
raise exceptions.VimAttributeException(
_("No such SOAP method %s.") % attr_name, excep)
except (httplib.CannotSendRequest,
httplib.ResponseNotReady,
httplib.CannotSendHeader) as excep:
raise exceptions.VimSessionOverLoadException(
_("httplib error in %s.") % attr_name, excep)
except requests.RequestException as excep:
raise exceptions.VimConnectionException(
_("requests error in %s.") % attr_name, excep)
except Exception as excep:
# TODO(vbala) should catch specific exceptions and raise
# appropriate VimExceptions.
# Socket errors which need special handling; some of these
# might be caused by server API call overload.
if (six.text_type(excep).find(ADDRESS_IN_USE_ERROR) != -1 or
six.text_type(excep).find(CONN_ABORT_ERROR)) != -1:
raise exceptions.VimSessionOverLoadException(
_("Socket error in %s.") % attr_name, excep)
# Type error which needs special handling; it might be caused
# by server API call overload.
elif six.text_type(excep).find(RESP_NOT_XML_ERROR) != -1:
raise exceptions.VimSessionOverLoadException(
_("Type error in %s.") % attr_name, excep)
else:
raise exceptions.VimException(
_("Exception in %s.") % attr_name, excep)
