Merge "connections: Introduction of generic API"

1 files changed, 34 insertions, 10 deletions

diff --git a/core/vswitch_controller.py b/core/vswitch_controller.py
index 855de8b2..889f14bc 100644
--- a/core/vswitch_controller.py
+++ b/core/vswitch_controller.py
@@ -1,4 +1,4 @@
-# Copyright 2015 Intel Corporation.
+# Copyright 2015-2018 Intel Corporation., Tieto
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -13,33 +13,57 @@
 # limitations under the License.
 """Interface for deployment specific vSwitch controllers
 """
+import logging
 
 class IVswitchController(object):
-    """Abstract class which defines a vSwitch controller object
+    """Interface class for a vSwitch controller object
 
     This interface is used to setup and control a vSwitch provider for a
     particular deployment scenario.
     """
-    def __enter__(self):
+    def __init__(self, deployment, vswitch_class, traffic):
+        """Initializes up the generic prerequisites for deployment scenario.
+
+        :deployment: the deployment scenario to configure
+        :vswitch_class: the vSwitch class to be used.
+        :traffic: dictionary with detailed traffic definition
+        """
+        self._logger = logging.getLogger(__name__)
+        self._vswitch_class = vswitch_class
+        self._vswitch = vswitch_class()
+        self._deployment_scenario = deployment
+        self._logger.debug('Creation using %s', str(self._vswitch_class))
+        self._traffic = traffic.copy()
+        self._bridge = None
+
+    def setup(self):
         """Sets up the switch for the particular deployment scenario
         """
         raise NotImplementedError(
             "The VswitchController does not implement the \"setup\" function.")
 
-    def __exit__(self, type_, value, traceback):
+    def stop(self):
         """Tears down the switch created in setup()
         """
         raise NotImplementedError(
             "The VswitchController does not implement the \"stop\" function.")
 
+    def __enter__(self):
+        """Sets up the switch for the particular deployment scenario
+        """
+        self.setup()
+
+    def __exit__(self, type_, value, traceback):
+        """Tears down the switch created in setup()
+        """
+        self.stop()
+
     def get_vswitch(self):
         """Get the controlled vSwitch
 
         :return: The controlled IVswitch
         """
-        raise NotImplementedError(
-            "The VswitchController does not implement the \"get_vswitch\" "
-            "function.")
+        return self._vswitch
 
     def get_ports_info(self):
         """Returns a dictionary describing all ports on the vSwitch.
@@ -50,9 +74,9 @@ class IVswitchController(object):
             "The VswitchController does not implement the \"get_ports_info\" "
             "function.")
 
-    def dump_vswitch_flows(self):
-        """ Dumps flows from vswitch
+    def dump_vswitch_connections(self):
+        """ Dumps connections from vswitch
         """
         raise NotImplementedError(
             "The VswitchController does not implement the "
-            "\"dump_vswitch_flows\" function.")
+            "\"dump_vswitch_connections\" function.")