This function is needed to cache the results of API calls, which for a godforsaken...

[plcapi.git] / PLC / Methods / GetSlivers.py

diff --git a/PLC/Methods/GetSlivers.py b/PLC/Methods/GetSlivers.py
index 951b352..d54784d 100644 (file)
--- a/PLC/Methods/GetSlivers.py
+++ b/PLC/Methods/GetSlivers.py
@@ -27,6 +27,7 @@ from PLC.Accessors.Accessors_standard import *
 # XXX used to check if slice expiration time is sane
 MAXINT =  2L**31-1
 
+# slice_filter essentially contains the slice_ids for the relevant slices (on the node + system & delegated slices)
 def get_slivers(api, auth, slice_filter, node = None):
     # Get slice information
     slices = Slices(api, slice_filter, ['slice_id', 'name', 'instantiation', 'expires', 'person_ids', 'slice_tag_ids'])
@@ -122,6 +123,24 @@ def get_slivers(api, auth, slice_filter, node = None):
 
     return slivers
 
+### The pickle module, used in conjunction with caching has a restriction that it does not
+### work on "connection objects." It doesn't matter if the connection object has
+### an 'str' or 'repr' method, there is a taint check that throws an exception if
+### the pickled class is found to derive from a connection.
+### (To be moved to Method.py)
+
+def sanitize_for_pickle (obj):
+    if (isinstance(obj, dict)):
+        parent = dict(obj)
+        for k in parent.keys(): parent[k] = sanitize_for_pickle (parent[k])
+        return parent
+    elif (isinstance(obj, list)):
+        parent = list(obj)
+        parent = map(sanitize_for_pickle, parent)
+        return parent
+    else:
+        return obj
+
 class GetSlivers(Method):
     """
     Returns a struct containing information about the specified node