sfa/methods/Resolve.py

   1 from sfa.util.faults import *
   2 from sfa.util.namespace import *
   3 from sfa.util.method import Method
   4 from sfa.util.parameter import Parameter
   5
   6
   7 class Resolve(Method):
   8     """
   9     Lookup a URN and return information about the corresponding object.
  10     @param slice_urn (string) URN of slice to renew
  11     @param credentials ([string]) of credentials
  12
  13     """
  14     interfaces = ['registry']
  15     accepts = [
  16         Parameter(str, "URN"),
  17         Parameter(type([str]), "List of credentials"),
  18         ]
  19     returns = Parameter(bool, "Success or Failure")
  20
  21     def call(self, xrn, creds):
  22         for cred in creds:
  23             try:
  24                 self.api.auth.check(cred, 'resolve')
  25                 found = True
  26                 break
  27             except:
  28                 continue
  29
  30         if not found:
  31             raise InsufficientRights('Resolve: Credentials either did not verify, were no longer valid, or did not have appropriate privileges')
  32
  33
  34         manager_base = 'sfa.managers'
  35
  36         if self.api.interface in ['registry']:
  37             mgr_type = self.api.config.SFA_REGISTRY_TYPE
  38             manager_module = manager_base + ".registry_manager_%s" % mgr_type
  39             manager = __import__(manager_module, fromlist=[manager_base])
  40             return manager.Resolve(self.api, xrn, creds)
  41
  42         return {}