oops, forgot that one

diff --git a/sfa/util/plxrn.py b/sfa/util/plxrn.py
new file mode 100644 (file)
index 0000000..b3a15be
--- /dev/null
+++ b/sfa/util/plxrn.py
@@ -0,0 +1,61 @@
+# specialized Xrn class for PlanetLab
+from sfa.util.xrn import Xrn
+
+# temporary helper functions to use this module instead of namespace
+def hostname_to_hrn (auth, login_base, hostname):
+    return PlXrn(auth=auth+'.'+login_base,hostname=hostname).get_hrn()
+def slicename_to_hrn (auth_hrn, slicename):
+    return PlXrn(auth=auth_hrn,slicename=slicename).get_hrn()
+def email_to_hrn (auth_hrn, email):
+    return PlXrn(auth=auth_hrn, email=email).get_hrn()
+def hrn_to_pl_slicename (hrn):
+    return PlXrn(hrn=hrn,type='slice').pl_slicename()
+def hrn_to_pl_login_base (hrn):
+    return PlXrn(hrn=hrn,type='slice').pl_login_base()
+def hrn_to_pl_authname (hrn):
+    return PlXrn(hrn=hrn,type='any').pl_authname()
+
+
+class PlXrn (Xrn):
+
+    @staticmethod 
+    def site_hrn (auth, login_base):
+        return '.'.join(auth,login_base)
+
+    def __init__ (self, auth=None, hostname=None, slicename=None, email=None, **kwargs):
+        #def hostname_to_hrn(auth_hrn, login_base, hostname):
+        if hostname is not None:
+            self.type='node'
+            # keep only the first part of the DNS name
+            self.hrn='.'.join( [auth,hostname.split(".")[0] ] )
+            self.hrn_to_urn()
+        #def slicename_to_hrn(auth_hrn, slicename):
+        elif slicename is not None:
+            self.type='slice'
+            # split at the first _
+            parts = slicename.split("_",1)
+            self.hrn = ".".join([auth] + parts )
+            self.hrn_to_urn()
+        #def email_to_hrn(auth_hrn, email):
+        elif email is not None:
+            self.type='person'
+            # keep only the part before '@' and replace special chars into _
+            self.hrn='.'.join([auth,email.split('@')[0].replace(".", "_").replace("+", "_")])
+            self.hrn_to_urn()
+        else:
+            Xrn.__init__ (self,**kwargs)
+
+    #def hrn_to_pl_slicename(hrn):
+    def pl_slicename (self):
+        self._normalize()
+        return self.authority[-1] + '_' + self.leaf
+
+    #def hrn_to_pl_authname(hrn):
+    def pl_authname (self):
+        self._normalize()
+        return self.authority[-1]
+
+    #def hrn_to_pl_login_base(hrn):
+    def pl_login_base (self):
+        self._normalize()
+        return self.authority[-1]