Source code for octavia.amphorae.driver_exceptions.exceptions

# Copyright 2011-2014 OpenStack Foundation,author: Min Wang,German Eichberger
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

from oslo_utils import excutils

from octavia.i18n import _




[docs]
class AmphoraDriverError(Exception):

    message = _("A super class for all other exceptions and the catch.")

    def __init__(self, **kwargs):
        try:
            super().__init__(self.message % kwargs)
            self.msg = self.message % kwargs
        except Exception:
            with excutils.save_and_reraise_exception() as ctxt:
                if not self.use_fatal_exceptions():
                    ctxt.reraise = False
                    # at least get the core message out if something happened
                    super().__init__(self.message)

    def __unicode__(self):
        return self.msg



[docs]
    @staticmethod
    def use_fatal_exceptions():
        """Return True if use fatal exceptions by raising them."""
        return False








[docs]
class NotFoundError(AmphoraDriverError):

    message = _('this amphora couldn\'t be found')






[docs]
class InfoException(AmphoraDriverError):

    message = _('gathering information about this amphora failed')






[docs]
class MetricsException(AmphoraDriverError):

    message = _('gathering metrics failed')






[docs]
class UnauthorizedException(AmphoraDriverError):

    message = _('the driver can\'t access the amphora')






[docs]
class StatisticsException(AmphoraDriverError):

    message = _('gathering statistics failed')






[docs]
class TimeOutException(AmphoraDriverError):

    message = _('contacting the amphora timed out')






[docs]
class DeleteFailed(AmphoraDriverError):

    message = _('this load balancer couldn\'t be deleted')






[docs]
class SuspendFailed(AmphoraDriverError):

    message = _('this load balancer couldn\'t be suspended')






[docs]
class EnableFailed(AmphoraDriverError):

    message = _('this load balancer couldn\'t be enabled')






[docs]
class ArchiveException(AmphoraDriverError):

    message = _('couldn\'t archive the logs')






[docs]
class ProvisioningErrors(AmphoraDriverError):

    message = _('Super class for provisioning amphora errors')






[docs]
class ListenerProvisioningError(ProvisioningErrors):

    message = _('couldn\'t provision Listener')






[docs]
class LoadBalancerProvisoningError(ProvisioningErrors):

    message = _('couldn\'t provision LoadBalancer')






[docs]
class HealthMonitorProvisioningError(ProvisioningErrors):

    message = _('couldn\'t provision HealthMonitor')






[docs]
class NodeProvisioningError(ProvisioningErrors):

    message = _('couldn\'t provision Node')






[docs]
class AmpDriverNotImplementedError(AmphoraDriverError):

    message = _('Amphora does not implement this feature.')






[docs]
class AmpConnectionRetry(AmphoraDriverError):

    message = _('Could not connect to amphora, exception caught: '
                '%(exception)s')






[docs]
class AmpVersionUnsupported(AmphoraDriverError):

    message = _('Amphora version %(version)s is no longer supported.')