def retry_request(self,
method,
action,
body=None,
headers=None,
params=None):
"""Call do_request with the default retry configuration.
Only idempotent requests should retry failed connection attempts.
:raises: ConnectionFailed if the maximum # of retries is exceeded
"""
max_attempts = self.retries + 1
for i in range(max_attempts):
try:
return self.do_request(method,
action,
body=body,
headers=headers,
params=params)
except exceptions.ConnectionFailed:
# Exception has already been logged by do_request()
if i < self.retries:
_logger.debug(_('Retrying connection to Tacker service'))
time.sleep(self.retry_interval)
raise exceptions.ConnectionFailed(reason=_("Maximum attempts reached"))
def http_log_resp(_logger, resp, body):
if not _logger.isEnabledFor(logging.DEBUG):
return
_logger.debug(_("RESP:%(code)s %(headers)s %(body)s\n"), {
'code': resp.status_code,
'headers': resp.headers,
'body': body
})
def _handle_fault_response(self, status_code, response_body):
# Create exception with HTTP status code and message
_logger.debug(_("Error message: %s"), response_body)
# Add deserialized error message to exception arguments
try:
des_error_body = self.deserialize(response_body, status_code)
except Exception:
# If unable to deserialized body it is probably not a
# Tacker error
des_error_body = {'message': response_body}
# Raise the appropriate exception
exception_handler_v10(status_code, des_error_body)
def serialize(self, data):
"""Serializes a dictionary into either xml or json.
A dictionary with a single key can be passed and
it can contain any structure.
"""
if data is None:
return None
elif type(data) is dict:
return serializer.Serializer(self.get_attr_metadata()).serialize(
data, self.content_type())
else:
raise Exception(
_("Unable to serialize object of type = '%s'") % type(data))
def http_log_req(_logger, args, kwargs):
if not _logger.isEnabledFor(logging.DEBUG):
return
string_parts = ['curl -i']
for element in args:
if element in ('GET', 'POST', 'DELETE', 'PUT'):
string_parts.append(' -X %s' % element)
else:
string_parts.append(' %s' % element)
for element in kwargs['headers']:
header = ' -H "%s: %s"' % (element, kwargs['headers'][element])
string_parts.append(header)
if 'body' in kwargs and kwargs['body']:
string_parts.append(" -d '%s'" % (kwargs['body']))
string_parts = safe_encode_list(string_parts)
_logger.debug(_("\nREQ: %s\n"), "".join(string_parts))
class TackerException(Exception):
"""Base Tacker Exception
To correctly use this class, inherit from it and define
a 'message' property. That message will get printf'd
with the keyword arguments provided to the constructor.
"""
message = _("An unknown exception occurred.")
def __init__(self, message=None, **kwargs):
if message:
self.message = message
try:
self._error_string = self.message % kwargs
except Exception:
# at least get the core message out if something happened
self._error_string = self.message
def __str__(self):
return self._error_string
def get_client_class(api_name, version, version_map):
"""Returns the client class for the requested API version
:param api_name: the name of the API, e.g. 'compute', 'image', etc
:param version: the requested API version
:param version_map: a dict of client classes keyed by version
:rtype: a client class for the requested API version
"""
try:
client_path = version_map[str(version)]
except (KeyError, ValueError):
msg = _("Invalid %(api_name)s client version '%(version)s'. must be "
"one of: %(map_keys)s")
msg = msg % {
'api_name': api_name,
'version': version,
'map_keys': ', '.join(version_map.keys())
}
raise exceptions.UnsupportedVersion(msg)
return import_class(client_path)
class TackerClientNoUniqueMatch(TackerCLIError):
message = _("Multiple %(resource)s matches found for name '%(name)s',"
" use an ID to be more specific.")
class InvalidContentType(TackerClientException):
message = _("Invalid content type %(content_type)s.")
class MalformedResponseBody(TackerClientException):
message = _("Malformed response body: %(reason)s")
class SslCertificateValidationError(TackerClientException):
message = _("SSL certificate validation has failed: %(reason)s")
class ConnectionFailed(TackerClientException):
message = _("Connection to tacker failed: %(reason)s")
class EndpointTypeNotFound(TackerClientException):
message = _("Could not find endpoint type %(type_)s in Service Catalog.")
class EndpointNotFound(TackerClientException):
message = _("Could not find Service or Region in Service Catalog.")
class NoAuthURLProvided(Unauthorized):
message = _("auth_url was not provided to the Tacker client")
class Unauthorized(TackerClientException):
status_code = 401
message = _("Unauthorized: bad credentials.")
class Forbidden(TackerClientException):
status_code = 403
message = _("Forbidden: your credentials don't give you access to this "
"resource.")
class AmbiguousEndpoints(TackerClientException):
message = _("Found more than one matching endpoint in Service Catalog: "
"%(matching_endpoints)")
