3 from sfa.util.xrn import urn_to_hrn
4 from sfa.util.method import Method
5 from sfa.util.sfatablesRuntime import run_sfatables
6 from sfa.util.faults import SfaInvalidArgument
7 from sfa.trust.credential import Credential
9 from sfa.storage.parameter import Parameter, Mixed
11 class ListResources(Method):
13 Returns information about available resources or resources allocated to this slice
14 @param credential list
15 @param options dictionary
18 interfaces = ['aggregate', 'slicemgr']
20 Mixed(Parameter(str, "Credential string"),
21 Parameter(type([str]), "List of credentials")),
22 Parameter(dict, "Options")
24 returns = Parameter(str, "List of resources")
26 def call(self, creds, options):
27 self.api.logger.info("interface: %s\tmethod-name: %s" % (self.api.interface, self.name))
29 # client must specify a version
30 if not options.get('geni_rspec_version'):
31 if options.get('rspec_version'):
32 options['geni_rspec_version'] = options['rspec_version']
34 raise SfaInvalidArgument('Must specify an rspec version option. geni_rspec_version cannot be null')
36 # get slice's hrn from options
37 xrn = options.get('geni_slice_urn', '')
38 (hrn, _) = urn_to_hrn(xrn)
40 # Find the valid credentials
41 valid_creds = self.api.auth.checkCredentials(creds, 'listnodes', hrn)
43 # get hrn of the original caller
44 origin_hrn = options.get('origin_hrn', None)
46 origin_hrn = Credential(string=valid_creds[0]).get_gid_caller().get_hrn()
47 rspec = self.api.manager.ListResources(self.api, creds, options)
49 # filter rspec through sfatables
50 if self.api.interface in ['aggregate']:
51 chain_name = 'OUTGOING'
52 elif self.api.interface in ['slicemgr']:
53 chain_name = 'FORWARD-OUTGOING'
54 self.api.logger.debug("ListResources: sfatables on chain %s"%chain_name)
55 filtered_rspec = run_sfatables(chain_name, hrn, origin_hrn, rspec)
57 if options.has_key('geni_compressed') and options['geni_compressed'] == True:
58 filtered_rspec = zlib.compress(filtered_rspec).encode('base64')