62576cabf7
neutron-lib now contains the API definitions for neutron's core resources. This patch removes the constant core resource and collection variables and uses them from lib. Subsequent patches will consume the actual core resource attribute definitions. NeutronLibImpact Change-Id: Ia9afdf620cd538b2aa420593277d6403a45c996b
127 lines
5.7 KiB
Python
127 lines
5.7 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_lib.api.definitions import extra_dhcp_opt as edo_ext
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from neutron_lib.api.definitions import port as port_def
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from neutron.db import _resource_extend as resource_extend
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from neutron.db import api as db_api
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from neutron.objects.port.extensions import extra_dhcp_opt as obj_extra_dhcp
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@resource_extend.has_resource_extenders
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class ExtraDhcpOptMixin(object):
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"""Mixin class to add extra options to the DHCP opts file
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and associate them to a port.
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"""
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def _is_valid_opt_value(self, opt_name, opt_value):
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# If the dhcp opt is blank-able, it shouldn't be saved to the DB in
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# case that the value is None
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if opt_name in edo_ext.VALID_BLANK_EXTRA_DHCP_OPTS:
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return opt_value is not None
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# Otherwise, it shouldn't be saved to the DB in case that the value
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# is None or empty
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return bool(opt_value)
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def _process_port_create_extra_dhcp_opts(self, context, port,
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extra_dhcp_opts):
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if not extra_dhcp_opts:
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return port
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with db_api.context_manager.writer.using(context):
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for dopt in extra_dhcp_opts:
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if self._is_valid_opt_value(dopt['opt_name'],
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dopt['opt_value']):
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ip_version = dopt.get('ip_version', 4)
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extra_dhcp_obj = obj_extra_dhcp.ExtraDhcpOpt(
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context,
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port_id=port['id'],
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opt_name=dopt['opt_name'],
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opt_value=dopt['opt_value'],
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ip_version=ip_version)
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extra_dhcp_obj.create()
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return self._extend_port_extra_dhcp_opts_dict(context, port)
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def _extend_port_extra_dhcp_opts_dict(self, context, port):
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port[edo_ext.EXTRADHCPOPTS] = self._get_port_extra_dhcp_opts_binding(
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context, port['id'])
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def _get_port_extra_dhcp_opts_binding(self, context, port_id):
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opts = obj_extra_dhcp.ExtraDhcpOpt.get_objects(
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context, port_id=port_id)
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# TODO(mhickey): When port serilization is available then
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# the object list should be returned instead
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return [{'opt_name': r.opt_name, 'opt_value': r.opt_value,
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'ip_version': r.ip_version}
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for r in opts]
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def _update_extra_dhcp_opts_on_port(self, context, id, port,
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updated_port=None):
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# It is not necessary to update in a transaction, because
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# its called from within one from ovs_neutron_plugin.
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dopts = port['port'].get(edo_ext.EXTRADHCPOPTS)
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if dopts:
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opts = obj_extra_dhcp.ExtraDhcpOpt.get_objects(
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context, port_id=id)
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# if there are currently no dhcp_options associated to
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# this port, Then just insert the new ones and be done.
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with db_api.context_manager.writer.using(context):
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for upd_rec in dopts:
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for opt in opts:
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if (opt['opt_name'] == upd_rec['opt_name']
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and opt['ip_version'] == upd_rec.get(
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'ip_version', 4)):
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# to handle deleting of a opt from the port.
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if upd_rec['opt_value'] is None:
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opt.delete()
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else:
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if (self._is_valid_opt_value(
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opt['opt_name'],
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upd_rec['opt_value']) and
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opt['opt_value'] !=
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upd_rec['opt_value']):
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opt['opt_value'] = upd_rec['opt_value']
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opt.update()
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break
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else:
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if self._is_valid_opt_value(
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upd_rec['opt_name'],
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upd_rec['opt_value']):
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ip_version = upd_rec.get('ip_version', 4)
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extra_dhcp_obj = obj_extra_dhcp.ExtraDhcpOpt(
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context,
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port_id=id,
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opt_name=upd_rec['opt_name'],
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opt_value=upd_rec['opt_value'],
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ip_version=ip_version)
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extra_dhcp_obj.create()
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if updated_port:
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edolist = self._get_port_extra_dhcp_opts_binding(context, id)
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updated_port[edo_ext.EXTRADHCPOPTS] = edolist
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return bool(dopts)
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@staticmethod
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@resource_extend.extends([port_def.COLLECTION_NAME])
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def _extend_port_dict_extra_dhcp_opt(res, port):
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res[edo_ext.EXTRADHCPOPTS] = [{'opt_name': dho.opt_name,
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'opt_value': dho.opt_value,
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'ip_version': dho.ip_version}
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for dho in port.dhcp_opts]
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return res
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