text: # Copyright 2014 NEC Corporation
  # All Rights Reserved.
  #
  #    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 urllib
  
  from lxml import etree
  
  from tempest.common import rest_client
  from tempest.common import xml_utils
  from tempest import config
  
  CONF = config.CONF
  
  
  class VolumesServicesClientXML(rest_client.RestClient):
      TYPE = "xml"
  
      def __init__(self, auth_provider):
          super(VolumesServicesClientXML, self).__init__(auth_provider)
          self.service = CONF.volume.catalog_type
  
      def list_services(self, params=None):
          url = 'os-services'
          if params:
              url += '?%s' % urllib.urlencode(params)
  
          resp, body = self.get(url)
          node = etree.fromstring(body)
          body = [xml_utils.xml_to_json(x) for x in node.getchildren()]
          self.expected_success(200, resp.status)
          return resp, body
  