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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.
import functools
from rally.task import context
configure = functools.partial(context.configure, platform="openstack")
class OpenStackContext(context.Context):
"""A base class for all OpenStack context classes."""
def _iterate_per_tenants(self, users=None):
"""Iterate of a single arbitrary user from each tenant
:type users: list of users
:return: iterator of a single user from each tenant
"""
if users is None:
users = self.context.get("users", [])
processed_tenants = set()
for user in users:
if user["tenant_id"] not in processed_tenants:
processed_tenants.add(user["tenant_id"])
yield user, user["tenant_id"]
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