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.util.config import Config
9 from sfa.plc.nodes import Nodes
10 # RSpecManager_pl is not used. This is just to resolve issues with the dynamic __import__ that comes later.
11 import sfa.rspecs.aggregates.rspec_manager_pl
13 class get_resources(Method):
15 Get an resource specification (rspec). The rspec may describe the resources
16 available at an authority or the resources being used by a slice.
18 @param cred credential string specifying the rights of the caller
19 @param hrn human readable name of the slice we are interesed in or None
23 interfaces = ['aggregate', 'slicemgr']
26 Parameter(str, "Credential string"),
27 Mixed(Parameter(str, "Human readable name (hrn)"),
28 Parameter(None, "hrn not specified"))
31 returns = Parameter(str, "String representatin of an rspec")
33 def call(self, cred, hrn=None):
34 sfa_aggregate_type = Config().get_aggregate_rspec_type()
36 self.api.auth.check(cred, 'listnodes')
37 if (sfa_aggregate_type == 'pl'):
38 nodes = Nodes(self.api)
40 rspec = nodes.get_rspec(hrn)
43 rspec = nodes['rspec']
45 # To clean up after July 21 - SB
46 rspec_manager = __import__("sfa.rspecs.aggregates.rspec_manager_"+sfa_aggregate_type)
47 rspec = rspec_manager.get_rspec(hrn)