added support for urn name format. urn is the default name format used over the wire

[sfa.git] / sfa / methods / create_slice.py

diff --git a/sfa/methods/create_slice.py b/sfa/methods/create_slice.py
index a2b07d5..7c83740 100644 (file)
--- a/sfa/methods/create_slice.py
+++ b/sfa/methods/create_slice.py
@@ -2,15 +2,16 @@
 ### $URL$
 
 from sfa.util.faults import *
-from sfa.util.misc import *
+from sfa.util.namespace import *
 from sfa.util.method import Method
 from sfa.util.parameter import Parameter, Mixed
 from sfa.trust.auth import Auth
 from sfa.plc.slices import Slices
 from sfa.util.config import Config
-# RSpecManager_pl is not used. This is just to resolve issues with the dynamic __import__ that comes later.
+# RSpecManager_pl is not used. It's used to make sure the module is in place.
 import sfa.rspecs.aggregates.rspec_manager_pl
 from sfa.trust.credential import Credential
+from sfatables.runtime import SFATablesRules
 
 
 class create_slice(Method):
@@ -18,7 +19,7 @@ class create_slice(Method):
     Instantiate the specified slice according to whats defined in the specified rspec      
 
     @param cred credential string specifying the rights of the caller
-    @param hrn human readable name of slice to instantiate
+    @param hrn human readable name of slice to instantiate (hrn or xrn)
     @param rspec resource specification
     @return 1 is successful, faults otherwise  
     """
@@ -27,26 +28,59 @@ class create_slice(Method):
     
     accepts = [
         Parameter(str, "Credential string"),
-        Parameter(str, "Human readable name of slice to instantiate"),
+        Parameter(str, "Human readable name of slice to instantiate (hrn or xrn)"),
         Parameter(str, "Resource specification"),
+        Mixed(Parameter(str, "Human readable name of the original caller"),
+              Parameter(None, "Origin hrn not specified"))
         ]
 
     returns = Parameter(int, "1 if successful")
     
-    def call(self, cred, hrn, rspec, caller_cred=None):
-       if caller_cred==None:
-          caller_cred=cred
-       #log the call
-       self.api.logger.info("interface: %s\tcaller-hrn: %s\ttarget-hrn: %s\tmethod-name: %s"%(self.api.interface, Credential(string=caller_cred).get_gid_caller().get_hrn(), hrn, self.name))
+    def call(self, cred, xrn, requested_rspec, origin_hrn=None):
+        hrn, type = urn_to_hrn(xrn) 
+        user_cred = Credential(string=cred)
+        #log the call
+        if not origin_hrn:
+            origin_hrn = user_cred.get_gid_caller().get_hrn()
+        self.api.logger.info("interface: %s\tcaller-hrn: %s\ttarget-hrn: %s\tmethod-name: %s"%(self.api.interface, origin_hrn, hrn, self.name))
+         
+        # validate the credential
+        self.api.auth.check(cred, 'createslice')
 
         sfa_aggregate_type = Config().get_aggregate_rspec_type()
-        self.api.auth.check(cred, 'createslice')
-        if (sfa_aggregate_type == 'pl'):
-            slices = Slices(self.api, caller_cred=caller_cred)
-            slices.create_slice(hrn, rspec)    
-        else:
-            # To clean up after July 21 - SB    
-            rspec_manager = __import__("sfa.rspecs.aggregates.rspec_manager_"+sfa_aggregate_type, fromlist = ["sfa.rspecs.aggregates"])
+        rspec_manager = __import__("sfa.rspecs.aggregates.rspec_manager_"+sfa_aggregate_type, fromlist = ["sfa.rspecs.aggregates"])
+        #Filter the incoming rspec using sfatables
+        if self.api.interface in ['slicemgr']:
+            incoming_rules = SFATablesRules('FORWARD-INCOMING')
+        elif self.api.interface in ['aggregate']:
+            incoming_rules = SFATablesRules('INCOMING')
+
+        if incoming_rules.sorted_rule_list:
+            #incoming_rules.set_slice(hrn) # This is a temporary kludge. Eventually, we'd like to fetch the context requested by the match/target
+
+            contexts = incoming_rules.contexts
+            request_context = rspec_manager.fetch_context(hrn, origin_hrn, contexts)
+            incoming_rules.set_context(request_context)
+            rspec = incoming_rules.apply(requested_rspec)
+        else:  
+            rspec = requested_rspec
+
+        # send the call to the right manager
+        if sfa_aggregate_type not in ['pl']:
+            # To clean up after July 21 - SB
             rspec = rspec_manager.create_slice(self.api, hrn, rspec)
-        
+            return 1
+
+        manager_base = 'sfa.managers'
+        if self.api.interface in ['aggregate']:
+            mgr_type = self.api.config.SFA_AGGREGATE_TYPE
+            manager_module = manager_base + ".aggregate_manager_%s" % mgr_type
+            manager = __import__(manager_module, fromlist=[manager_base])
+            manager.create_slice(self.api, xrn, rspec)
+        elif self.api.interface in ['slicemgr']:
+            mgr_type = self.api.config.SFA_SM_TYPE
+            manager_module = manager_base + ".slice_manager_%s" % mgr_type
+            manager = __import__(manager_module, fromlist=[manager_base])
+            manager.create_slice(self.api, xrn, rspec, origin_hrn)
+
         return 1