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
12 from sfa.trust.credential import Credential
14 class get_resources(Method):
16 Get an resource specification (rspec). The rspec may describe the resources
17 available at an authority or the resources being used by a slice.
19 @param cred credential string specifying the rights of the caller
20 @param hrn human readable name of the slice we are interesed in or None
24 interfaces = ['aggregate', 'slicemgr']
27 Parameter(str, "Credential string"),
28 Mixed(Parameter(str, "Human readable name (hrn)"),
29 Parameter(None, "hrn not specified"))
32 returns = Parameter(str, "String representatin of an rspec")
34 def call(self, cred, hrn=None, caller_cred=None):
35 sfa_aggregate_type = Config().get_aggregate_rspec_type()
37 self.api.auth.check(cred, 'listnodes')
42 self.api.logger.info("interface: %s\tcaller-hrn: %s\ttarget-hrn: %s\tmethod-name: %s"%(self.api.interface, Credential(string=caller_cred).get_gid_caller().get_hrn(), hrn, self.name))
44 if (sfa_aggregate_type == 'pl'):
45 nodes = Nodes(self.api, caller_cred=caller_cred)
47 rspec = nodes.get_rspec(hrn)
50 rspec = nodes['rspec']
52 # To clean up after July 21 - SB
53 rspec_manager = __import__("sfa.rspecs.aggregates.rspec_manager_"+sfa_aggregate_type, fromlist = ["sfa.rspecs.aggregates"])
54 rspec = rspec_manager.get_rspec(self.api, hrn)