# Copyright 2016 - Nokia Corporation
#
# 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 oslo_utils import importutils


def import_versioned_module(version, submodule=None):
    module = 'vitrageclient.v%s' % version
    if submodule:
        module = '.'.join((module, submodule))
    return importutils.import_module(module)


def args_to_dict(args, attrs):
    return {(attr, value)
            for attr, value in [(attr, getattr(args, attr)) for attr in attrs]
            if value is not None}


def list2cols(cols, objs):
    return cols, [tuple([o[k] for k in cols])
                  for o in objs]


def get_client(obj):
    if hasattr(obj.app, 'client_manager'):
        return obj.app.client_manager.rca
    else:
        return obj.app.client