def hrn_to_urn(hrn,type): return Xrn(hrn, type=type).urn
def hrn_authfor_hrn(parenthrn, hrn): return Xrn.hrn_is_auth_for_hrn(parenthrn, hrn)
-def urn_to_sliver_id(urn, slice_id, node_id, index=0):
- return Xrn(urn).get_sliver_id(slice_id, node_id, index)
+def urn_to_sliver_id(urn, slice_id, node_id, index=0, authority=None):
+ return Xrn(urn).get_sliver_id(slice_id, node_id, index, authority)
class Xrn:
self.hrn=None
self.urn=xrn
self.urn_to_hrn()
- #print>>sys.stderr, " \r\n \r\n \t XRN.PY init xrn.startswith(Xrn.URN_PREFIX) hrn %s urn %s type %s" %( self.hrn, self.urn, self.type)
else:
self.urn=None
self.hrn=xrn
self.type=type
self.hrn_to_urn()
- #print>>sys.stderr, " \r\n \r\n \t XRN.PY init ELSE hrn %s urn %s type %s" %( self.hrn, self.urn, self.type)
# happens all the time ..
# if not type:
# debug_logger.debug("type-less Xrn's are not safe")
def get_hrn_type(self): return (self.hrn, self.type)
def _normalize(self):
- #print>>sys.stderr, " \r\n \r\n \t XRN.PY _normalize self.hrn %s ",self.hrn
if self.hrn is None: raise SfaAPIError, "Xrn._normalize"
if not hasattr(self,'leaf'):
self.leaf=Xrn.hrn_split(self.hrn)[-1]
# self.authority keeps a list
if not hasattr(self,'authority'):
self.authority=Xrn.hrn_auth_list(self.hrn)
- #print>>sys.stderr, " \r\n \r\n \t XRN.PY _normalize self.hrn %s leaf %s authority %s"%(self.hrn, self.leaf, self.authority)
def get_leaf(self):
self._normalize()
return ':'.join( [Xrn.unescape(x) for x in self.authority] )
- def get_sliver_id(self, slice_id, node_id, index=0):
+ def get_sliver_id(self, slice_id, node_id, index=0, authority=None):
self._normalize()
- return ":".join(map(str, [self.get_urn(), slice_id, node_id, index]))
+ urn = self.get_urn()
+ if authority:
+ authority_hrn = self.get_authority_hrn()
+ if not authority_hrn.startswith(authority):
+ hrn = ".".join([authority,self.get_authority_hrn(), self.get_leaf()])
+ else:
+ hrn = ".".join([self.get_authority_hrn(), self.get_leaf()])
+ urn = Xrn(hrn, self.get_type()).get_urn()
+ return ":".join(map(str, [urn, slice_id, node_id, index]))
def urn_to_hrn(self):
"""