Source Code for Module ndg.xacml.core.context.handler

 1  """NDG Security Context handler base class 
 2   
 3  NERC DataGrid 
 4  """ 
 5  __author__ = "P J Kershaw" 
 6  __date__ = "24/02/10" 
 7  __copyright__ = "(C) 2010 Science and Technology Facilities Council" 
 8  __contact__ = "Philip.Kershaw@stfc.ac.uk" 
 9  __license__ = "BSD - see LICENSE file in top-level directory" 
10  __contact__ = "Philip.Kershaw@stfc.ac.uk" 
11  __revision__ = "$Id: handler.py 7665 2010-10-28 13:48:06Z pjkersha $" 
12  from ndg.xacml.core.context.handlerinterface import CtxHandlerInterface 
13  from ndg.xacml.core.context.pdpinterface import PDPInterface 
14  from ndg.xacml.core.context.pipinterface import PIPInterface 
15       
16   
17 -class CtxHandlerBase(CtxHandlerInterface): 
18      """Base class for Context handlers - extends Context handler interface to  
19      include Policy Decision Point and Policy Information Point references 
20      """ 
21       
22      __slots__ = ( 
23          '__pip', 
24          '__pdp',  
25      ) 
26         
27 -    def __init__(self): 
28          self.__pip = None 
29          self.__pdp = None 
30           
31 -    def _getPip(self): 
32          return self.__pip 
33   
34 -    def _setPip(self, value): 
35          if not isinstance(value, PIPInterface): 
36              raise TypeError('Expecting %r type for "pip" attribute; got %r ' 
37                              'instead' %  
38                              (PIPInterface, value)) 
39               
40          self.__pip = value 
41   
42      pip = property(_getPip, _setPip, None, "Policy Information Point") 
43             
44 -    def _getPdp(self): 
45          return self.__pdp 
46   
47 -    def _setPdp(self, value): 
48          if not isinstance(value, PDPInterface): 
49              raise TypeError('Expecting %r type for "pdp" attribute; got %r ' 
50                              'instead' %  
51                              (PDPInterface, value)) 
52               
53          self.__pdp = value 
54   
55      pdp = property(_getPdp, _setPdp, None, "Policy Decision Point") 
56