100 lines
3.1 KiB
Python
100 lines
3.1 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from neutron_lib import exceptions
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from oslo_utils import excutils
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import six
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from dragonflow._i18n import _
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class DragonflowException(Exception):
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"""Base Dragonflow Exception.
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To correctly use this class, inherit from it and define
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a 'message' property. That message will get printf'd
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with the keyword arguments provided to the constructor.
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"""
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message = _("An unknown exception occurred.")
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def __init__(self, **kwargs):
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try:
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super(DragonflowException, self).__init__(self.message % kwargs)
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self.msg = self.message % kwargs
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except Exception:
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with excutils.save_and_reraise_exception() as ctxt:
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if not self.use_fatal_exceptions():
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ctxt.reraise = False
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# at least get the core message out if something happened
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super(DragonflowException, self).__init__(self.message)
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if six.PY2:
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def __unicode__(self):
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return unicode(self.msg)
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def __str__(self):
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return self.msg
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def use_fatal_exceptions(self):
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return False
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class DBKeyNotFound(DragonflowException):
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message = _('DB Key not found, key=%(key)s')
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class CommandError(DragonflowException):
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message = _("Non-existent fields are specified: %(non_existent_fields)s")
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class UnsupportedTransportException(DragonflowException):
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"""
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An exception for cases when the given transport protocol (e.g. UDP, TCP) is
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not supported.
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"""
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message = _("Transport protocol is not supported: %(transport)s")
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class DBLockFailed(DragonflowException):
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message = _("The DB Lock cannot be acquired for object=%(oid)s in"
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"the session=%(sid)s.")
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class DBStoreRecordNotFound(DragonflowException):
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message = _('%(record)s not found in db_store!')
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class NoRemoteIPProxyException(DragonflowException):
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message = _('The metadata request has no remote IP')
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class InvalidIPAddressException(DragonflowException):
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message = _('The IP address %(key)s is invalid')
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class LogicalPortNotFoundByTunnelKey(DragonflowException):
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message = _('Could not find logical port with tunnel key %(key)')
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class DFMultipleExceptions(exceptions.MultipleExceptions):
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def __str__(self):
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return ','.join(str(error) for error in self.inner_exceptions)
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class UnknownResourceException(DragonflowException):
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message = _('Could not find lock id for resource type %(resource_type)')
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class InvalidDBHostConfiguration(DragonflowException):
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message = _('The DB host string %(host)s is invalid.')
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