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# 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 keystone import assignment
from keystone.common import sql
from keystone import exception
class Role(assignment.RoleDriver):
@sql.handle_conflicts(conflict_type='role')
def create_role(self, role_id, role):
with sql.transaction() as session:
ref = RoleTable.from_dict(role)
session.add(ref)
return ref.to_dict()
@sql.truncated
def list_roles(self, hints):
with sql.transaction() as session:
query = session.query(RoleTable)
refs = sql.filter_limit_query(RoleTable, query, hints)
return [ref.to_dict() for ref in refs]
def list_roles_from_ids(self, ids):
if not ids:
return []
else:
with sql.transaction() as session:
query = session.query(RoleTable)
query = query.filter(RoleTable.id.in_(ids))
role_refs = query.all()
return [role_ref.to_dict() for role_ref in role_refs]
def _get_role(self, session, role_id):
ref = session.query(RoleTable).get(role_id)
if ref is None:
raise exception.RoleNotFound(role_id=role_id)
return ref
def get_role(self, role_id):
with sql.transaction() as session:
return self._get_role(session, role_id).to_dict()
@sql.handle_conflicts(conflict_type='role')
def update_role(self, role_id, role):
with sql.transaction() as session:
ref = self._get_role(session, role_id)
old_dict = ref.to_dict()
for k in role:
old_dict[k] = role[k]
new_role = RoleTable.from_dict(old_dict)
for attr in RoleTable.attributes:
if attr != 'id':
setattr(ref, attr, getattr(new_role, attr))
ref.extra = new_role.extra
return ref.to_dict()
def delete_role(self, role_id):
with sql.transaction() as session:
ref = self._get_role(session, role_id)
session.delete(ref)
class RoleTable(sql.ModelBase, sql.DictBase):
__tablename__ = 'role'
attributes = ['id', 'name']
id = sql.Column(sql.String(64), primary_key=True)
name = sql.Column(sql.String(255), unique=True, nullable=False)
extra = sql.Column(sql.JsonBlob())
__table_args__ = (sql.UniqueConstraint('name'), {})
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