49aaf280e1
Implements blueprint ml2-mechanism-driver-subnet-calls Change-Id: Ib9a8009975959692f46f80fb2a850fcc2b22debe
97 lines
3.1 KiB
Python
97 lines
3.1 KiB
Python
# Copyright (c) 2013 OpenStack Foundation
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# All Rights Reserved.
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#
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# 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.plugins.ml2 import driver_api as api
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class MechanismDriverContext(object):
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"""MechanismDriver context base class."""
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def __init__(self, plugin, plugin_context):
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self._plugin = plugin
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# This temporarily creates a reference loop, but the
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# lifetime of PortContext is limited to a single
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# method call of the plugin.
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self._plugin_context = plugin_context
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class NetworkContext(MechanismDriverContext, api.NetworkContext):
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def __init__(self, plugin, plugin_context, network,
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segments=None, original_network=None):
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super(NetworkContext, self).__init__(plugin, plugin_context)
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self._network = network
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self._original_network = original_network
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self._segments = segments
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@property
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def current(self):
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return self._network
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@property
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def original(self):
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return self._original_network
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@property
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def network_segments(self):
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if not self._segments:
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self._segments = self._plugin.get_network_segments(
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self._plugin_context, self._network['id'])
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return self._segments
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class SubnetContext(MechanismDriverContext, api.SubnetContext):
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def __init__(self, plugin, plugin_context, subnet, original_subnet=None):
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super(SubnetContext, self).__init__(plugin, plugin_context)
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self._subnet = subnet
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self._original_subnet = original_subnet
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@property
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def current(self):
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return self._subnet
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@property
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def original(self):
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return self._original_subnet
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class PortContext(MechanismDriverContext, api.PortContext):
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def __init__(self, plugin, plugin_context, port,
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original_port=None):
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super(PortContext, self).__init__(plugin, plugin_context)
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self._port = port
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self._original_port = original_port
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self._network_context = None
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@property
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def current(self):
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return self._port
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@property
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def original(self):
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return self._original_port
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@property
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def network(self):
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"""Return the NetworkContext associated with this port."""
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if not self._network_context:
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network = self._plugin.get_network(self._plugin_context,
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self._port["network_id"])
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self._network_context = NetworkContext(self._plugin,
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self._plugin_context,
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network)
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return self._network_context
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