def create_sliver (self, slice_urn, slice_hrn, creds, rspec_string, users, options):
aggregate = NitosAggregate(self)
slices = NitosSlices(self)
sfa_peer = slices.get_sfa_peer(slice_hrn)
slice_record=None
if users:
slice_record = users[0].get('slice_record', {})
# parse rspec
rspec = RSpec(rspec_string, version='NITOS 1')
# ensure slice record exists
slice = slices.verify_slice(slice_hrn, slice_record, sfa_peer, options=options)
# ensure user records exists
users = slices.verify_users(slice_hrn, slice, users, sfa_peer, options=options)
# add/remove leases (nodes and channels)
# a lease in Nitos RSpec case is a reservation of nodes and channels grouped by (slice,timeslot)
rspec_requested_nodes, rspec_requested_channels = rspec.version.get_leases()
nodes = slices.verify_slice_leases_nodes(slice, rspec_requested_nodes)
channels = slices.verify_slice_leases_channels(slice, rspec_requested_channels)
return aggregate.get_rspec(slice_xrn=slice_urn, version=rspec.version)
def list_resources(self, slice_urn, slice_hrn, creds, options):
cached_requested = options.get('cached', True)
version_manager = VersionManager()
# get the rspec's return format from options
#rspec_version = version_manager.get_version(options.get('geni_rspec_version'))
# rspec's return format for nitos aggregate is version NITOS 1
rspec_version = version_manager.get_version('NITOS 1')
version_string = "rspec_%s" % (rspec_version)
#panos adding the info option to the caching key (can be improved)
if options.get('info'):
version_string = version_string + "_" + options.get(
'info', 'default')
# Adding the list_leases option to the caching key
if options.get('list_leases'):
version_string = version_string + "_" + options.get(
'list_leases', 'default')
# Adding geni_available to caching key
if options.get('geni_available'):
version_string = version_string + "_" + str(
options.get('geni_available'))
# look in cache first
if cached_requested and self.cache and not slice_hrn:
rspec = self.cache.get(version_string)
if rspec:
logger.debug(
"NitosDriver.ListResources: returning cached advertisement"
)
return rspec
#panos: passing user-defined options
#print "manager options = ",options
aggregate = NitosAggregate(self)
rspec = aggregate.get_rspec(slice_xrn=slice_urn,
version=rspec_version,
options=options)
# cache the result
if self.cache and not slice_hrn:
logger.debug(
"NitosDriver.ListResources: stores advertisement in cache")
self.cache.add(version_string, rspec)
return rspec
def create_sliver(self, slice_urn, slice_hrn, creds, rspec_string, users,
options):
aggregate = NitosAggregate(self)
slices = NitosSlices(self)
sfa_peer = slices.get_sfa_peer(slice_hrn)
slice_record = None
if users:
slice_record = users[0].get('slice_record', {})
# parse rspec
rspec = RSpec(rspec_string, version='NITOS 1')
# ensure slice record exists
slice = slices.verify_slice(slice_hrn,
slice_record,
sfa_peer,
options=options)
# ensure user records exists
users = slices.verify_users(slice_hrn,
slice,
users,
sfa_peer,
options=options)
# add/remove leases (nodes and channels)
# a lease in Nitos RSpec case is a reservation of nodes and channels grouped by (slice,timeslot)
rspec_requested_leases = rspec.version.get_leases()
rspec_requested_nodes = []
rspec_requested_channels = []
for lease in rspec_requested_leases:
if lease['type'] == 'node':
lease.pop('type', None)
rspec_requested_nodes.append(lease)
else:
lease.pop('type', None)
rspec_requested_channels.append(lease)
nodes = slices.verify_slice_leases_nodes(slice, rspec_requested_nodes)
channels = slices.verify_slice_leases_channels(
slice, rspec_requested_channels)
return aggregate.get_rspec(slice_xrn=slice_urn, version=rspec.version)
def list_resources (self, slice_urn, slice_hrn, creds, options):
cached_requested = options.get('cached', True)
version_manager = VersionManager()
# get the rspec's return format from options
#rspec_version = version_manager.get_version(options.get('geni_rspec_version'))
# rspec's return format for nitos aggregate is version NITOS 1
rspec_version = version_manager.get_version('NITOS 1')
version_string = "rspec_%s" % (rspec_version)
#panos adding the info option to the caching key (can be improved)
if options.get('info'):
version_string = version_string + "_"+options.get('info', 'default')
# Adding the list_leases option to the caching key
if options.get('list_leases'):
version_string = version_string + "_"+options.get('list_leases', 'default')
# Adding geni_available to caching key
if options.get('geni_available'):
version_string = version_string + "_" + str(options.get('geni_available'))
# look in cache first
if cached_requested and self.cache and not slice_hrn:
rspec = self.cache.get(version_string)
if rspec:
logger.debug("NitosDriver.ListResources: returning cached advertisement")
return rspec
#panos: passing user-defined options
#print "manager options = ",options
aggregate = NitosAggregate(self)
rspec = aggregate.get_rspec(slice_xrn=slice_urn, version=rspec_version,
options=options)
# cache the result
if self.cache and not slice_hrn:
logger.debug("NitosDriver.ListResources: stores advertisement in cache")
self.cache.add(version_string, rspec)
return rspec