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OpenStack Study: l2device_plugin_base.py**** CubicPower OpenStack Study ****
# vim: tabstop=4 shiftwidth=4 softtabstop=4 # # Copyright 2012 Cisco Systems, Inc. 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. # # @author: Sumit Naiksatam, Cisco Systems, Inc. from abc import ABCMeta, abstractmethod import inspect import six @six.add_metaclass(ABCMeta)
**** CubicPower OpenStack Study **** class L2DevicePluginBase(object): """Base class for a device-specific plugin. An example of a device-specific plugin is a Nexus switch plugin. The network model relies on device-category-specific plugins to perform the configuration on each device. """ @abstractmethod
**** CubicPower OpenStack Study **** def create_network(self, tenant_id, net_name, net_id, vlan_name, vlan_id, **kwargs): """Create network. :returns: :raises: """ pass @abstractmethod
**** CubicPower OpenStack Study **** def delete_network(self, tenant_id, net_id, **kwargs): """Delete network. :returns: :raises: """ pass @abstractmethod
**** CubicPower OpenStack Study **** def update_network(self, tenant_id, net_id, name, **kwargs): """Update network. :returns: :raises: """ pass @abstractmethod
**** CubicPower OpenStack Study **** def create_port(self, tenant_id, net_id, port_state, port_id, **kwargs): """Create port. :returns: :raises: """ pass @abstractmethod
**** CubicPower OpenStack Study **** def delete_port(self, tenant_id, net_id, port_id, **kwargs): """Delete port. :returns: :raises: """ pass @abstractmethod
**** CubicPower OpenStack Study **** def update_port(self, tenant_id, net_id, port_id, **kwargs): """Update port. :returns: :raises: """ pass @abstractmethod
**** CubicPower OpenStack Study **** def plug_interface(self, tenant_id, net_id, port_id, remote_interface_id, **kwargs): """Plug interface. :returns: :raises: """ pass @abstractmethod
**** CubicPower OpenStack Study **** def unplug_interface(self, tenant_id, net_id, port_id, **kwargs): """Unplug interface. :returns: :raises: """ pass
**** CubicPower OpenStack Study **** def create_subnet(self, tenant_id, net_id, ip_version, subnet_cidr, **kwargs): """Create subnet. :returns: :raises: """ pass
**** CubicPower OpenStack Study **** def get_subnets(self, tenant_id, net_id, **kwargs): """Get subnets. :returns: :raises: """ pass
**** CubicPower OpenStack Study **** def get_subnet(self, tenant_id, net_id, subnet_id, **kwargs): """Get subnet. :returns: :raises: """ pass
**** CubicPower OpenStack Study **** def update_subnet(self, tenant_id, net_id, subnet_id, **kwargs): """Update subnet. :returns: :raises: """ pass
**** CubicPower OpenStack Study **** def delete_subnet(self, tenant_id, net_id, subnet_id, **kwargs): """Delete subnet. :returns: :raises: """ pass @classmethod
**** CubicPower OpenStack Study **** def __subclasshook__(cls, klass): """Check plugin class. The __subclasshook__ method is a class method that will be called every time a class is tested using issubclass(klass, Plugin). In that case, it will check that every method marked with the abstractmethod decorator is provided by the plugin class. """ if cls is L2DevicePluginBase: for method in cls.__abstractmethods__: method_ok = False for base in klass.__mro__: if method in base.__dict__: fn_obj = base.__dict__[method] if inspect.isfunction(fn_obj): abstract_fn_obj = cls.__dict__[method] arg_count = fn_obj.func_code.co_argcount expected_arg_count = \ abstract_fn_obj.func_code.co_argcount method_ok = arg_count == expected_arg_count if method_ok: continue return NotImplemented return True return NotImplemented
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