sfa/methods/delete_slice.py

   1 ### $Id$
   2 ### $URL$
   3
   4 from sfa.util.faults import *
   5 from sfa.util.method import Method
   6 from sfa.util.parameter import Parameter, Mixed
   7 from sfa.trust.auth import Auth
   8 from sfa.trust.credential import Credential
   9
  10 class delete_slice(Method):
  11     """
  12     Remove the slice from all nodes.
  13
  14     @param cred credential string specifying the rights of the caller
  15     @param hrn human readable name specifying the slice to delete
  16     @return 1 if successful, faults otherwise
  17     """
  18
  19     interfaces = ['aggregate', 'slicemgr', 'component']
  20
  21     accepts = [
  22         Parameter(str, "Credential string"),
  23         Parameter(str, "Human readable name of slice to delete"),
  24         Mixed(Parameter(str, "Human readable name of the original caller"),
  25               Parameter(None, "Origin hrn not specified"))
  26         ]
  27
  28     returns = Parameter(int, "1 if successful")
  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 credential
  39         self.api.auth.check(cred, 'deleteslice')
  40
  41         # send the call to the right manager
  42         manager_base = 'sfa.managers'
  43         if self.api.interface in ['component']:
  44             mgr_type = self.api.config.SFA_CM_TYPE
  45             manager_module = manager_base + ".component_manager_%s" % mgr_type
  46             manager = __import__(manager_module, fromlist=[manager_base])
  47             manager.delete_slice(self.api, hrn)
  48         elif self.api.interface in ['aggregate']:
  49             mgr_type = self.api.config.SFA_AGGREGATE_TYPE
  50             manager_module = manager_base + ".aggregate_manager_%s" % mgr_type
  51             manager = __import__(manager_module, fromlist=[manager_base])
  52             manager.delete_slice(self.api, hrn)
  53         elif self.api.interface in ['slicemgr']:
  54             mgr_type = self.api.config.SFA_SM_TYPE
  55             manager_module = manager_base + ".slice_manager_%s" % mgr_type
  56             manager = __import__(manager_module, fromlist=[manager_base])
  57             manager.delete_slice(self.api, hrn, origin_hrn)
  58
  59         return 1