sfa/methods/Delete.py

   1 from sfa.util.xrn import urn_to_hrn
   2 from sfa.util.method import Method
   3 from sfa.util.sfalogging import logger
   4
   5 from sfa.storage.parameter import Parameter, Mixed
   6 from sfa.trust.auth import Auth
   7 from sfa.trust.credential import Credential
   8
   9
  10 class Delete(Method):
  11     """
  12     Remove the slice or slivers and free the allocated resources
  13
  14     @param xrns human readable name of slice to instantiate (hrn or urn)
  15     @param creds credential string specifying the rights of the caller
  16     @return 1 is successful, faults otherwise
  17     """
  18
  19     interfaces = ['aggregate']
  20
  21     accepts = [
  22         Parameter(
  23             type([str]), "Human readable name of slice to delete (hrn or urn)"),
  24         Parameter(type([dict]), "Credentials"),
  25         Parameter(dict, "options"),
  26     ]
  27
  28     returns = Parameter(int, "1 if successful")
  29
  30     def call(self, xrns, creds, options):
  31         valid_creds = self.api.auth.checkCredentialsSpeaksFor(
  32             creds, 'deletesliver', xrns,
  33             check_sliver_callback=self.api.driver.check_sliver_credentials,
  34             options=options)
  35
  36         # log the call
  37         origin_hrn = Credential(cred=valid_creds[0]).get_gid_caller().get_hrn()
  38         logger.info("interface: %s\tcaller-hrn: %s\ttarget-hrn: %s\tmethod-name: %s" %
  39                     (self.api.interface, origin_hrn, xrns, self.name))
  40
  41         return self.api.manager.Delete(self.api, xrns, creds, options)