1 files changed, 65 insertions, 0 deletions
diff --git a/Testcases/cfgm_common/vnc_extensions.py b/Testcases/cfgm_common/vnc_extensions.py
new file mode 100644
index 0000000..cebbe4d
--- /dev/null
+++ b/Testcases/cfgm_common/vnc_extensions.py
@@ -0,0 +1,65 @@
+#
+# Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
+#
+
+import functools
+
+import stevedore
+
+
+class ApiHookManager(stevedore.hook.HookManager):
+    def __init__(self, namespace, hook_name):
+        super(ApiHookManager, self).__init__(namespace, hook_name,
+                                             invoke_on_load=True)
+    #end __init__
+
+    def run_pre(self, hook_name, args, kwargs):
+        for e in self.extensions:
+            obj = e.obj
+            pre = getattr(obj, 'pre', None)
+            if pre:
+                pre(*args, **kwargs)
+    #end run_pre
+
+    def run_post(self, hook_name, rv, args, kwargs):
+        for e in reversed(self.extensions):
+            obj = e.obj
+            post = getattr(obj, 'post', None)
+            if post:
+                post(rv, *args, **kwargs)
+    #end run_post
+#end class ApiHookManager
+
+
+def add_api_hook(hook_manager, hook_name):
+    def outer(f):
+        @functools.wraps(f)
+        def inner(*args, **kwargs):
+            hook_manager.run_pre(hook_name, args, kwargs)
+            rv = f(*args, **kwargs)
+            hook_manager.run_post(hook_name, rv, args, kwargs)
+
+            return rv
+
+        return inner
+        #end inner
+    #end outer
+
+    return outer
+#end add_api_hook
+
+
+class ExtensionManager(stevedore.extension.ExtensionManager):
+    def __init__(self, namespace, api_server_ip,
+                 api_server_port, conf_sections, sandesh,
+                 propagate_map_exceptions=False):
+        super(ExtensionManager, self).__init__(
+            namespace, invoke_on_load=True,
+            invoke_kwds={'api_server_ip': api_server_ip,
+                         'api_server_port': api_server_port,
+                         'conf_sections': conf_sections,
+                         'sandesh': sandesh },
+            propagate_map_exceptions=propagate_map_exceptions)
+    #end __init__
+
+#end class ExtensionManager