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OpenStack Study: security_group.py**** CubicPower OpenStack Study ****
# # 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 nova import db from nova.objects import base from nova.objects import fields
**** CubicPower OpenStack Study **** class SecurityGroup(base.NovaPersistentObject, base.NovaObject): # Version 1.0: Initial version # Version 1.1: String attributes updated to support unicode VERSION = '1.1' fields = { 'id': fields.IntegerField(), 'name': fields.StringField(), 'description': fields.StringField(), 'user_id': fields.StringField(), 'project_id': fields.StringField(), } @staticmethod
**** CubicPower OpenStack Study **** def _from_db_object(context, secgroup, db_secgroup): # NOTE(danms): These are identical right now for field in secgroup.fields: secgroup[field] = db_secgroup[field] secgroup._context = context secgroup.obj_reset_changes() return secgroup @base.remotable_classmethod
**** CubicPower OpenStack Study **** def get(cls, context, secgroup_id): db_secgroup = db.security_group_get(context, secgroup_id) return cls._from_db_object(context, cls(), db_secgroup) @base.remotable_classmethod
**** CubicPower OpenStack Study **** def get_by_name(cls, context, project_id, group_name): db_secgroup = db.security_group_get_by_name(context, project_id, group_name) return cls._from_db_object(context, cls(), db_secgroup) @base.remotable
**** CubicPower OpenStack Study **** def in_use(self, context): return db.security_group_in_use(context, self.id) @base.remotable
**** CubicPower OpenStack Study **** def save(self, context): updates = self.obj_get_changes() if updates: db_secgroup = db.security_group_update(context, self.id, updates) SecurityGroup._from_db_object(context, self, db_secgroup) self.obj_reset_changes() @base.remotable
**** CubicPower OpenStack Study **** def refresh(self, context): SecurityGroup._from_db_object(context, self, db.security_group_get(context, self.id))
**** CubicPower OpenStack Study **** class SecurityGroupList(base.ObjectListBase, base.NovaObject): # Version 1.0: Initial version # SecurityGroup <= version 1.1 VERSION = '1.0' fields = { 'objects': fields.ListOfObjectsField('SecurityGroup'), } child_versions = { '1.0': '1.1', # NOTE(danms): SecurityGroup was at 1.1 before we added this }
**** CubicPower OpenStack Study **** def __init__(self): super(SecurityGroupList, self).__init__() self.objects = [] self.obj_reset_changes() @base.remotable_classmethod
**** CubicPower OpenStack Study **** def get_all(cls, context): groups = db.security_group_get_all(context) return base.obj_make_list(context, SecurityGroupList(), SecurityGroup, groups) @base.remotable_classmethod
**** CubicPower OpenStack Study **** def get_by_project(cls, context, project_id): groups = db.security_group_get_by_project(context, project_id) return base.obj_make_list(context, SecurityGroupList(), SecurityGroup, groups) @base.remotable_classmethod
**** CubicPower OpenStack Study **** def get_by_instance(cls, context, instance): groups = db.security_group_get_by_instance(context, instance.uuid) return base.obj_make_list(context, SecurityGroupList(), SecurityGroup, groups) def make_secgroup_list(security_groups): """A helper to make security group objects from a list of names. Note that this does not make them save-able or have the rest of the attributes they would normally have, but provides a quick way to fill, for example, an instance object during create. """ secgroups = SecurityGroupList() secgroups.objects = [] for name in security_groups: secgroup = SecurityGroup() secgroup.name = name secgroups.objects.append(secgroup) return secgroups
**** CubicPower OpenStack Study **** def make_secgroup_list(security_groups): """A helper to make security group objects from a list of names. Note that this does not make them save-able or have the rest of the attributes they would normally have, but provides a quick way to fill, for example, an instance object during create. """ secgroups = SecurityGroupList() secgroups.objects = [] for name in security_groups: secgroup = SecurityGroup() secgroup.name = name secgroups.objects.append(secgroup) return secgroups
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