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+# Copyright 2015 Intel 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.
+"""Interface for deployment specific vSwitch controllers
+"""
+
+class IVswitchController(object):
+ """Abstract class which defines a vSwitch controller object
+
+ This interface is used to setup and control a vSwitch provider for a
+ particular deployment scenario.
+ """
+ def setup(self):
+ """Sets up the switch for the particular deployment scenario
+ """
+ raise NotImplementedError(
+ "The VswitchController does not implement the \"setup\" function.")
+ def stop(self):
+ """Tears down the switch created in setup()
+ """
+ raise NotImplementedError(
+ "The VswitchController does not implement the \"stop\" function.")
+
+ def get_vswitch(self):
+ """Get the controlled vSwitch
+
+ :return: The controlled IVswitch
+ """
+ raise NotImplementedError(
+ "The VswitchController does not implement the \"get_vswitch\" "
+ "function.")
+
+ def get_ports_info(self):
+ """Returns a dictionary describing all ports on the vSwitch.
+
+ See IVswitch for dictionary structure details
+ """
+ raise NotImplementedError(
+ "The VswitchController does not implement the \"get_ports_info\" "
+ "function.")