The SM caches the Aggregate's version info for 24 hours
[sfa.git] / sfa / managers / slice_manager_pl.py
index 596ae31..fa535e4 100644 (file)
@@ -17,8 +17,10 @@ from sfa.util.faults import *
 from sfa.util.record import SfaRecord
 from sfa.rspecs.pg_rspec import PGRSpec
 from sfa.rspecs.sfa_rspec import SfaRSpec
-from sfa.rspecs.pg_rspec_converter import PGRSpecConverter
+from sfa.rspecs.rspec_converter import RSpecConverter
 from sfa.rspecs.rspec_parser import parse_rspec    
+from sfa.rspecs.rspec_version import RSpecVersion
+from sfa.rspecs.pl_rspec_version import supported_rspecs
 from sfa.util.policy import Policy
 from sfa.util.prefixTree import prefixTree
 from sfa.util.sfaticket import *
@@ -27,7 +29,6 @@ from sfa.util.threadmanager import ThreadManager
 import sfa.util.xmlrpcprotocol as xmlrpcprotocol     
 import sfa.plc.peers as peers
 from sfa.util.version import version_core
-from sfa.rspecs.rspec_version import RSpecVersion
 from sfa.util.callids import Callids
 
 # we have specialized xmlrpclib.ServerProxy to remember the input url
@@ -44,50 +45,60 @@ def GetVersion(api):
     peers =dict ([ (peername,get_serverproxy_url(v)) for (peername,v) in api.aggregates.iteritems() 
                    if peername != api.hrn])
     xrn=Xrn (api.hrn)
-    sm_version=version_core({'interface':'slicemgr',
-                             'hrn' : xrn.get_hrn(),
-                             'urn' : xrn.get_urn(),
-                             'peers': peers,
-                             })
+    version_more = {'interface':'slicemgr',
+                    'hrn' : xrn.get_hrn(),
+                    'urn' : xrn.get_urn(),
+                    'peers': peers,}
+    version_more.update(supported_rspecs)     
+    sm_version=version_core(version_more)
     # local aggregate if present needs to have localhost resolved
     if api.hrn in api.aggregates:
         local_am_url=get_serverproxy_url(api.aggregates[api.hrn])
         sm_version['peers'][api.hrn]=local_am_url.replace('localhost',sm_version['hostname'])
     return sm_version
 
-def CreateSliver(api, xrn, creds, rspec, users, call_id):
+def CreateSliver(api, xrn, creds, rspec_str, users, call_id):
 
-    if Callids().already_handled(call_id): return ""
+    def _CreateSliver(aggregate, xrn, credential, rspec, users, call_id):
+            # Need to call GetVersion at an aggregate to determine the supported 
+            # rspec type/format beofre calling CreateSliver at an Aggregate. 
+            # The Aggregate's verion info is cached 
+            server = api.aggregates[aggregate]
+            # get cached aggregate version
+            aggregate_version_key = 'version_'+ aggregate
+            aggregate_version = api.cache.get(aggregate_version_key)
+            if not aggregate_version:
+                # get current aggregate version anc cache it for 24 hours
+                aggregate_version = server.GetVersion()
+                api.cache.add(aggregate_version_key, aggregate_version, 60 * 60 * 24)
+                
+            if 'sfa' not in aggregate_version and 'geni_api' in aggregate_version:
+                # sfa aggregtes support both sfa and pg rspecs, no need to convert
+                # if aggregate supports sfa rspecs. othewise convert to pg rspec
+                rspec = RSpecConverter.to_pg_rspec(rspec)
+
+            return server.CreateSliver(xrn, credential, rspec, users, call_id)
+                
 
-    hrn, type = urn_to_hrn(xrn)
+    if Callids().already_handled(call_id): return ""
 
     # Validate the RSpec against PlanetLab's schema --disabled for now
     # The schema used here needs to aggregate the PL and VINI schemas
     # schema = "/var/www/html/schemas/pl.rng"
+    rspec = parse_rspec(rspec_str)
     schema = None
     if schema:
-        try:
-            tree = etree.parse(StringIO(rspec))
-        except etree.XMLSyntaxError:
-            message = str(sys.exc_info()[1])
-            raise InvalidRSpec(message)
-
-        relaxng_doc = etree.parse(schema)
-        relaxng = etree.RelaxNG(relaxng_doc)
-        
-        if not relaxng(tree):
-            error = relaxng.error_log.last_error
-            message = "%s (line %s)" % (error.message, error.line)
-            raise InvalidRSpec(message)
-
-    # get the callers hrn
-    valid_cred = api.auth.checkCredentials(creds, 'createsliver', hrn)[0]
-    caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
+        rspec.validate(schema)
 
     # attempt to use delegated credential first
     credential = api.getDelegatedCredential(creds)
-    if not credential:     
+    if not credential:
         credential = api.getCredential()
+
+    # get the callers hrn
+    hrn, type = urn_to_hrn(xrn)
+    valid_cred = api.auth.checkCredentials(creds, 'createsliver', hrn)[0]
+    caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
     threads = ThreadManager()
     for aggregate in api.aggregates:
         # prevent infinite loop. Dont send request back to caller
@@ -96,8 +107,7 @@ def CreateSliver(api, xrn, creds, rspec, users, call_id):
             continue
             
         # Just send entire RSpec to each aggregate
-        server = api.aggregates[aggregate]
-        threads.run(server.CreateSliver, xrn, credential, rspec, users, call_id)
+        threads.run(_CreateSliver, aggregate, xrn, credential, rspec.toxml(), users, call_id)
             
     results = threads.get_results()
     rspec = SfaRSpec()
@@ -345,17 +355,9 @@ def ListResources(api, creds, options, call_id):
 
     # get the rspec's return format from options
     rspec_version = RSpecVersion(options.get('rspec_version', 'SFA 1'))
-    version_string = "rspec_%s_%s" % (rspec_version.format, rspec_version.version)
+    version_string = "rspec_%s" % (rspec_version.get_version_name())
 
-    # get hrn of the original caller
-    origin_hrn = options.get('origin_hrn', None)
-    if not origin_hrn:
-        if isinstance(creds, list):
-            origin_hrn = Credential(string=creds[0]).get_gid_caller().get_hrn()
-        else:
-            origin_hrn = Credential(string=creds).get_gid_caller().get_hrn()
-    
-    # look in cache first 
+    # look in cache first
     if caching and api.cache and not xrn:
         rspec =  api.cache.get(version_string)
         if rspec:
@@ -380,7 +382,6 @@ def ListResources(api, creds, options, call_id):
         my_opts = copy(options)
         my_opts['geni_compressed'] = False
         threads.run(server.ListResources, credential, my_opts, call_id)
-        #threads.run(server.get_resources, cred, xrn, origin_hrn)
                     
     results = threads.get_results()
     #results.append(open('/root/protogeni.rspec', 'r').read())
@@ -391,7 +392,7 @@ def ListResources(api, creds, options, call_id):
             if isinstance(tmp_rspec, SfaRSpec):
                 rspec.merge(result)
             elif isinstance(tmp_rspec, PGRSpec):
-                rspec.merge(PGRSpecConverter.to_sfa_rspec(result))
+                rspec.merge(RSpecConverter.to_sfa_rspec(result))
             else:
                 api.logger.info("SM.ListResources: invalid aggregate rspec")                        
         except: