--- /dev/null
+from geni.util.faults import *
+from geni.util.excep import *
+from geni.util.method import Method
+from geni.util.parameter import Parameter, Mixed
+from geni.util.auth import Auth
+from geni.util.nodes import Nodes
+
+class resources(Method):
+ """
+ Get an resource specification (rspec). The rspec may describe the resources
+ available at an authority or the resources being used by a slice.
+
+ @param cred credential string specifying the rights of the caller
+ @param hrn human readable name of the slice we are interesed in or None
+ for an authority.
+ """
+
+ interfaces = ['aggregate', 'slicemgr']
+
+ accepts = [
+ Parameter(str, "Credential string"),
+ Mixed(Parameter(str, "Human readable name (hrn)"),
+ Parameter(None, "hrn not specified"))
+ ]
+
+ returns = Parameter(str, "String representatin of an rspec")
+
+ def call(self, cred, hrn=None):
+
+ self.api.auth.check(cred, 'listnodes')
+ nodes = Nodes(self.api)
+ if hrn:
+ rspec = nodes.get_rspec(hrn)
+ else:
+ nodes.refresh()
+ rspec = nodes['rspec']
+
+ return rspec