sfa/methods/resolve.py

   1 ### $Id$
   2 ### $URL$
   3 import traceback
   4 from sfa.util.faults import *
   5 from sfa.util.method import Method
   6 from sfa.util.parameter import Parameter, Mixed
   7 from sfa.util.debug import log
   8 from sfa.trust.credential import Credential
   9 from sfa.util.record import SfaRecord
  10
  11 class resolve(Method):
  12     """
  13     Resolve a record.
  14
  15     @param cred credential string authorizing the caller
  16     @param hrn human readable name to resolve
  17     @return a list of record dictionaries or empty list
  18     """
  19
  20     interfaces = ['registry']
  21
  22     accepts = [
  23         Parameter(str, "Credential string"),
  24         Mixed(Parameter(str, "Human readable name (hrn)"),
  25               Parameter(list, "List of Human readable names ([hrn])"))
  26         ]
  27
  28     returns = [SfaRecord]
  29
  30     def call(self, cred, hrn, origin_hrn=None):
  31         user_cred = Credential(string=cred)
  32
  33         #log the call
  34         if not origin_hrn:
  35             origin_hrn = user_cred.get_gid_caller().get_hrn()
  36         self.api.logger.info("interface: %s\tcaller-hrn: %s\ttarget-hrn: %s\tmethod-name: %s"%(self.api.interface, origin_hrn, hrn, self.name))
  37
  38         # validate the cred
  39         self.api.auth.check(cred, 'resolve')
  40         # send the call to the right manager
  41         manager_base = 'sfa.managers'
  42         mgr_type = self.api.config.SFA_REGISTRY_TYPE
  43         manager_module = manager_base + ".registry_manager_%s" % mgr_type
  44         manager = __import__(manager_module, fromlist=[manager_base])
  45         return manager.resolve(self.api, hrn, origin_hrn=origin_hrn)
  46
  47
  48