+++ /dev/null
-from sfa.util.sfalogging import logger
-from sfa.util.faults import SfaFault
-
-# this is probably too big to swallow but for a starting point..
-from sfa.planetlab.pldriver import PlDriver
-
-from sfa.federica.fdshell import FdShell
-
-# hardwired for now
-# this could/should be obtained by issuing getRSpecVersion
-federica_version_string = "RSpecV2"
-
-# avail. methods on the federica side as of 2012/02/13
-# listAvailableResources(String credentials, String rspecVersion)
-# listSliceResources(String credentials, String rspecVersion, String sliceUrn)
-# createSlice(String credentials, String sliceUrn, String rspecVersion, String rspecString)
-# deleteSlice(String credentials, String sliceUrn)
-# listSlices()
-# getRSpecVersion()
-# all return
-# Result: {'code': 0, 'value': RSpec} if success
-# {'code': code_id, 'output': Error message} if error
-
-
-class FdDriver (PlDriver):
-
- def __init__(self, api):
- PlDriver.__init__(self, api)
- config = api.config
- self.shell = FdShell(config)
-
- # the agreement with the federica driver is for them to expose results in a way
- # compliant with the avpi v2 return code, i.e. a dict with 'code' 'value' 'output'
- # essentially, either 'code'==0, then 'value' is set to the actual result
- # otherwise, 'code' is set to an error code and 'output' holds an error
- # message
- def response(self, from_xmlrpc):
- if isinstance(from_xmlrpc, dict) and 'code' in from_xmlrpc:
- if from_xmlrpc['code'] == 0:
- return from_xmlrpc['value']
- else:
- raise SfaFault(from_xmlrpc['code'], from_xmlrpc['output'])
- else:
- logger.warning("unexpected result from federica xmlrpc api")
- return from_xmlrpc
-
- def aggregate_version(self):
- result = {}
- federica_version_string_api = self.response(
- self.shell.getRSpecVersion())
- result['federica_version_string_api'] = federica_version_string_api
- if federica_version_string_api != federica_version_string:
- result['WARNING'] = "hard-wired rspec version %d differs from what the API currently exposes" %\
- federica_version_string
- return result
-
- def testbed_name(self):
- return "federica"
-
- def list_slices(self, creds, options):
- # the issue is that federica returns the list of slice's urn in a string format
- # this is why this dirty hack is needed until federica fixes it.
- slices_str = self.shell.listSlices()['value'][1:-1]
- slices_list = slices_str.split(", ")
- return slices_list
-
- def sliver_status(self, slice_urn, slice_hrn):
- return "fddriver.sliver_status: undefined/todo for slice %s" % slice_hrn
-
- def list_resources(self, slice_urn, slice_hrn, creds, options):
- # right now rspec_version is ignored on the federica side
- # we normally derive it from options
- # look in cache if client has requested so
- cached_requested = options.get('cached', True)
- # global advertisement
- if not slice_hrn:
- # self.cache is initialized unless the global config has it turned
- # off
- if cached_requested and self.cache:
- # using federica_version_string as the key into the cache
- rspec = self.cache.get(federica_version_string)
- if rspec:
- logger.debug(
- "FdDriver.ListResources: returning cached advertisement")
- return self.response(rspec)
- # otherwise, need to get it
- # java code expects creds as a String
-# rspec = self.shell.listAvailableResources (creds, federica_version_string)
- rspec = self.shell.listAvailableResources(
- "", federica_version_string)
-# rspec = self.shell.listAvailableResources (federica_version_string)
- # cache it for future use
- if self.cache:
- logger.debug(
- "FdDriver.ListResources: stores advertisement in cache")
- self.cache.add(federica_version_string, rspec)
- return self.response(rspec)
- # about a given slice : don't cache
- else:
- # java code expects creds as a String
- # return self.response(self.shell.listSliceResources(creds,
- # federica_version_string, slice_urn))
- return self.response(self.shell.listSliceResources("", federica_version_string, slice_urn))
-
- def create_sliver(self, slice_urn, slice_hrn, creds, rspec_string, users, options):
- # right now version_string is ignored on the federica side
- # we normally derive it from options
- # java code expects creds as a String
- # return self.response(self.shell.createSlice(creds, slice_urn,
- # federica_version_string, rspec_string))
- return self.response(self.shell.createSlice("", slice_urn, federica_version_string, rspec_string))
-
- def delete_sliver(self, slice_urn, slice_hrn, creds, options):
- # right now version_string is ignored on the federica side
- # we normally derive it from options
- # xxx not sure if that's currentl supported at all
- # java code expects creds as a String
- # return self.response(self.shell.deleteSlice(creds, slice_urn))
- return self.response(self.shell.deleteSlice("", slice_urn))
-
- # for the the following methods we use what is provided by the default driver class
- # def renew_sliver (self, slice_urn, slice_hrn, creds, expiration_time, options):
- # def start_slice (self, slice_urn, slice_xrn, creds):
- # def stop_slice (self, slice_urn, slice_xrn, creds):
- # def reset_slice (self, slice_urn, slice_xrn, creds):
- # def get_ticket (self, slice_urn, slice_xrn, creds, rspec, options):
+++ /dev/null
-from sfa.util.sfalogging import logger
-from sfa.util.py23 import xmlrpc_client
-
-
-class FdShell:
- """
- A simple xmlrpc shell to a federica API server
- This class can receive the XMLRPC calls to the federica testbed
- For safety this is limited to a set of hard-coded calls
- """
-
- direct_calls = ['listAvailableResources',
- 'listSliceResources',
- 'createSlice',
- 'deleteSlice',
- 'getRSpecVersion',
- 'listSlices',
- ]
-
- def __init__(self, config):
- url = config.SFA_FEDERICA_URL
- # xxx not sure if java xmlrpc has support for None
- # self.proxy = xmlrpc_client.ServerProxy(url, verbose = False, allow_none = True)
- # xxx turn on verbosity
- self.proxy = xmlrpc_client.ServerProxy(url, verbose=True)
-
- # xxx get credentials from the config ?
- # right now basic auth data goes into the URL
- # so do *not* add any credential at that point
- def __getattr__(self, name):
- def func(*args, **kwds):
- if name not in FdShell.direct_calls:
- raise Exception(
- "Illegal method call %s for FEDERICA driver" % (name))
- logger.info("Issuing %s args=%s kwds=%s to federica" %
- (name, args, kwds))
-# result=getattr(self.proxy, "AggregateManager.%s"%name)(credential, *args, **kwds)
- result = getattr(self.proxy, "AggregateManager.%s" %
- name)(*args, **kwds)
- logger.debug('FdShell %s (%s) returned ... ' % (name, name))
- return result
- return func
git://git.onelab.eu / sfa.git / commitdiff