1 from sfa.util.sfalogging import logger
2 from sfa.util.faults import SfaFault
4 # this is probably too big to swallow but for a starting point..
5 from sfa.planetlab.pldriver import PlDriver
7 from sfa.federica.fdshell import FdShell
10 # this could/should be obtained by issuing getRSpecVersion
11 federica_version_string="RSpecV2"
13 #### avail. methods on the federica side as of 2012/02/13
14 # listAvailableResources(String credentials, String rspecVersion)
15 # listSliceResources(String credentials, String rspecVersion, String sliceUrn)
16 # createSlice(String credentials, String sliceUrn, String rspecVersion, String rspecString)
17 # deleteSlice(String credentials, String sliceUrn)
21 # Result: {'code': 0, 'value': RSpec} if success
22 # {'code': code_id, 'output': Error message} if error
24 class FdDriver (PlDriver):
26 def __init__ (self,config):
27 PlDriver.__init__ (self, config)
28 self.shell=FdShell(config)
30 # the agreement with the federica driver is for them to expose results in a way
31 # compliant with the avpi v2 return code, i.e. a dict with 'code' 'value' 'output'
32 # essentially, either 'code'==0, then 'value' is set to the actual result
33 # otherwise, 'code' is set to an error code and 'output' holds an error message
34 def response (self, from_xmlrpc):
35 if isinstance (from_xmlrpc, dict) and 'code' in from_xmlrpc:
36 if from_xmlrpc['code']==0:
37 return from_xmlrpc['value']
39 raise SfaFault(from_xmlrpc['code'],from_xmlrpc['output'])
41 logger.warning("unexpected result from federica xmlrpc api")
44 def aggregate_version (self):
46 federica_version_string_api = self.response(self.shell.getRSpecVersion())
47 result ['federica_version_string_api']=federica_version_string_api
48 if federica_version_string_api != federica_version_string:
49 result['WARNING']="hard-wired rspec version %d differs from what the API currently exposes"%\
50 federica_version_string
53 def testbed_name (self):
56 def list_slices (self, creds, options):
57 # the issue is that federica returns the list of slice's urn in a string format
58 # this is why this dirty hack is needed until federica fixes it.
59 slices_str = self.shell.listSlices()['value'][1:-1]
60 slices_list = slices_str.split(", ")
63 def sliver_status (self, slice_urn, slice_hrn):
64 return "fddriver.sliver_status: undefined/todo for slice %s"%slice_hrn
66 def list_resources (self, slice_urn, slice_hrn, creds, options):
67 # right now rspec_version is ignored on the federica side
68 # we normally derive it from options
69 # look in cache if client has requested so
70 cached_requested = options.get('cached', True)
71 # global advertisement
73 # self.cache is initialized unless the global config has it turned off
74 if cached_requested and self.cache:
75 # using federica_version_string as the key into the cache
76 rspec = self.cache.get(federica_version_string)
78 logger.debug("FdDriver.ListResources: returning cached advertisement")
79 return self.response(rspec)
80 # otherwise, need to get it
81 # java code expects creds as a String
82 # rspec = self.shell.listAvailableResources (creds, federica_version_string)
83 rspec = self.shell.listAvailableResources ("", federica_version_string)
84 # rspec = self.shell.listAvailableResources (federica_version_string)
85 # cache it for future use
87 logger.debug("FdDriver.ListResources: stores advertisement in cache")
88 self.cache.add(federica_version_string, rspec)
89 return self.response(rspec)
90 # about a given slice : don't cache
92 # java code expects creds as a String
93 # return self.response(self.shell.listSliceResources(creds, federica_version_string, slice_urn))
94 return self.response(self.shell.listSliceResources("", federica_version_string, slice_urn))
96 def create_sliver (self, slice_urn, slice_hrn, creds, rspec_string, users, options):
97 # right now version_string is ignored on the federica side
98 # we normally derive it from options
99 # java code expects creds as a String
100 # return self.response(self.shell.createSlice(creds, slice_urn, federica_version_string, rspec_string))
101 return self.response(self.shell.createSlice("", slice_urn, federica_version_string, rspec_string))
103 def delete_sliver (self, slice_urn, slice_hrn, creds, options):
104 # right now version_string is ignored on the federica side
105 # we normally derive it from options
106 # xxx not sure if that's currentl supported at all
107 # java code expects creds as a String
108 # return self.response(self.shell.deleteSlice(creds, slice_urn))
109 return self.response(self.shell.deleteSlice("", slice_urn))
111 # for the the following methods we use what is provided by the default driver class
112 #def renew_sliver (self, slice_urn, slice_hrn, creds, expiration_time, options):
113 #def start_slice (self, slice_urn, slice_xrn, creds):
114 #def stop_slice (self, slice_urn, slice_xrn, creds):
115 #def reset_slice (self, slice_urn, slice_xrn, creds):
116 #def get_ticket (self, slice_urn, slice_xrn, creds, rspec, options):