tempest/services/data_processing/v1_1/client.py

# Copyright (c) 2013 Mirantis Inc.
#
# 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 json

from tempest.common import rest_client
from tempest import config

CONF = config.CONF


class DataProcessingClient(rest_client.RestClient):
    def __init__(self, username, password, auth_url, tenant_name=None):
        super(DataProcessingClient, self).__init__(username, password,
                                                   auth_url, tenant_name)
        self.service = CONF.data_processing.catalog_type

    @classmethod
    def _request_and_parse(cls, req_fun, uri, res_name, *args, **kwargs):
        """Make a request using specified req_fun and parse response.

        It returns pair: resp and parsed resource(s) body.
        """

        resp, body = req_fun(uri, headers={
            'Content-Type': 'application/json'
        }, *args, **kwargs)
        body = json.loads(body)
        return resp, body[res_name]

    def list_node_group_templates(self):
        """List all node group templates for a user."""

        uri = 'node-group-templates'
        return self._request_and_parse(self.get, uri, 'node_group_templates')

    def get_node_group_template(self, tmpl_id):
        """Returns the details of a single node group template."""

        uri = "node-group-templates/%s" % tmpl_id
        return self._request_and_parse(self.get, uri, 'node_group_template')

    def create_node_group_template(self, name, plugin_name, hadoop_version,
                                   node_processes, flavor_id,
                                   node_configs=None, **kwargs):
        """Creates node group template with specified params.

        It supports passing additional params using kwargs and returns created
        object.
        """
        uri = "node-group-templates"
        body = kwargs.copy()
        body.update({
            'name': name,
            'plugin_name': plugin_name,
            'hadoop_version': hadoop_version,
            'node_processes': node_processes,
            'flavor_id': flavor_id,
            'node_configs': node_configs or dict(),
        })
        return self._request_and_parse(self.post, uri, 'node_group_template',
                                       body=json.dumps(body))

    def delete_node_group_template(self, tmpl_id):
        """Deletes the specified node group template by id."""

        uri = "node-group-templates/%s" % tmpl_id
        return self.delete(uri)