text: # vim: tabstop=4 shiftwidth=4 softtabstop=4
  
  # All Rights Reserved.
  # Copyright 2010 United States Government as represented by the
  # Administrator of the National Aeronautics and Space Administration.
  # 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 oslo.config.cfg
  
  # Importing full names to not pollute the namespace and cause possible
  # collisions with use of 'from nova.network import <foo>' elsewhere.
  import nova.openstack.common.importutils
  
  
  def placement_module():
      importutils = nova.openstack.common.importutils
      host_type = oslo.config.cfg.CONF.host_type.lower()
      if 'powervm' in host_type:
          placement_class = 'paxes_nova.network.ibmpowervm.placement_pvm.' +\
              'IBMPowerVMNetworkPlacementPVM'
      elif 'kvm' in host_type:
          placement_class = 'paxes_nova.network.powerkvm.placement_kvm.' +\
              'IBMPowerVMNetworkPlacementKVM'
      cls = importutils.import_class(placement_class)
      return cls()
  