def urn_split (urn):
return Xrn.urn_meaningful(urn).split('+')
+ @staticmethod
+ def filter_type(urns=None, type=None):
+ if urns is None: urns=[]
+ urn_list = []
+ if not type:
+ return urns
+
+ for urn in urns:
+ xrn = Xrn(xrn=urn)
+ if (xrn.type == type):
+ # Xrn is probably a urn so we can just compare types
+ urn_list.append(urn)
+ return urn_list
####################
# the local fields that are kept consistent
# self.urn
# self.type
# self.path
# provide either urn, or (hrn + type)
- def __init__ (self, xrn, type=None, id=None):
+ def __init__ (self, xrn="", type=None, id=None):
if not xrn: xrn = ""
# user has specified xrn : guess if urn or hrn
self.id = id
self.hrn=None
self.urn=xrn
if id:
- self.urn = "%s-%s" % (self.urn, str(id))
+ self.urn = "%s:%s" % (self.urn, str(id))
self.urn_to_hrn()
- if type:
- self.type=type
- self.hrn_to_urn()
else:
self.urn=None
self.hrn=xrn
self.type=type
self.hrn_to_urn()
-
self._normalize()
# happens all the time ..
# if not type:
def get_hrn_type(self): return (self.hrn, self.type)
def _normalize(self):
- if self.hrn is None: raise SfaAPIError, "Xrn._normalize"
+ 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
update the authority section of an existing urn
"""
authority_hrn = self.get_authority_hrn()
- if not authority_hrn.startswith(authority+"."):
- self.hrn = authority + "." + self.hrn
- self.hrn_to_urn()
+ if not authority_hrn.startswith(authority):
+ hrn = ".".join([authority,authority_hrn, self.get_leaf()])
+ else:
+ hrn = ".".join([authority_hrn, self.get_leaf()])
+
+ self.hrn = hrn
+ self.hrn_to_urn()
self._normalize()
+
+ # sliver_id_parts is list that contains the sliver's
+ # slice id and node id
+ def get_sliver_id_parts(self):
+ sliver_id_parts = []
+ if self.type == 'sliver' or '-' in self.leaf:
+ sliver_id_parts = self.leaf.split('-')
+ return sliver_id_parts
+
def urn_to_hrn(self):
"""
# if not self.urn or not self.urn.startswith(Xrn.URN_PREFIX):
if not Xrn.is_urn(self.urn):
- raise SfaAPIError, "Xrn.urn_to_hrn"
+ raise SfaAPIError("Xrn.urn_to_hrn")
parts = Xrn.urn_split(self.urn)
type=parts.pop(2)
# if not self.hrn or self.hrn.startswith(Xrn.URN_PREFIX):
if Xrn.is_urn(self.hrn):
- raise SfaAPIError, "Xrn.hrn_to_urn, hrn=%s"%self.hrn
+ raise SfaAPIError("Xrn.hrn_to_urn, hrn=%s"%self.hrn)
if self.type and self.type.startswith('authority'):
self.authority = Xrn.hrn_auth_list(self.hrn)
else:
self.authority = Xrn.hrn_auth_list(self.hrn)
name = Xrn.hrn_leaf(self.hrn)
- # separate name from id
- name_parts = name.split("-")
- name = name_parts[0]
authority_string = self.get_authority_urn()
if self.type == None:
urn = "+".join(['',authority_string,self.type,Xrn.unescape(name)])
if hasattr(self, 'id') and self.id:
- urn = "%s-%s" % (urn, self.id)
+ urn = "%s:%s" % (urn, self.id)
self.urn = Xrn.URN_PREFIX + urn