X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=sfa%2Fplc%2Fslices.py;h=a3c7c1a05e90a6f91526ecfd57b45b0b783d6de5;hb=eababa96fb603cdd552bc03091813544b099befd;hp=717a9d2a6582315a0b1624b68019b9f1cf536c81;hpb=cddcb79e0cf37a7e0e896cf6aad666fea93d9b98;p=sfa.git

diff --git a/sfa/plc/slices.py b/sfa/plc/slices.py
index 717a9d2a..a3c7c1a0 100644
--- a/sfa/plc/slices.py
+++ b/sfa/plc/slices.py
@@ -7,35 +7,133 @@ import traceback
 import sys
 
 from types import StringTypes
-from sfa.util.misc import *
+from sfa.util.namespace import *
 from sfa.util.rspec import *
 from sfa.util.specdict import *
 from sfa.util.faults import *
-from sfa.util.storage import *
-from sfa.util.record import GeniRecord
+from sfa.util.record import SfaRecord
 from sfa.util.policy import Policy
 from sfa.util.prefixTree import prefixTree
-from sfa.util.debug import log
-from sfa.server.aggregate import Aggregates
-from sfa.server.registry import Registries
 
-class Slices(SimpleStorage):
+MAXINT =  2L**31-1
 
-    def __init__(self, api, ttl = .5, caller_cred=None):
-        self.api = api
-        self.ttl = ttl
-        self.threshold = None
-        path = self.api.config.SFA_BASE_DIR
-        filename = ".".join([self.api.interface, self.api.hrn, "slices"])
-        filepath = path + os.sep + filename
-        self.slices_file = filepath
-        SimpleStorage.__init__(self, self.slices_file)
-        self.policy = Policy(self.api)    
-        self.load()
-        self.caller_cred=caller_cred
+class Slices:
 
+    rspec_to_slice_tag = {'max_rate':'net_max_rate'}
 
-    def get_peer(self, hrn):
+    def __init__(self, api, ttl = .5, origin_hrn=None):
+        self.api = api
+        #filepath = path + os.sep + filename
+        self.policy = Policy(self.api)    
+        self.origin_hrn = origin_hrn
+
+    def get_slivers(self, xrn, node=None):
+        hrn, type = urn_to_hrn(xrn)
+         
+        slice_name = hrn_to_pl_slicename(hrn)
+        # XX Should we just call PLCAPI.GetSliceTicket(slice_name) instead
+        # of doing all of this?
+        #return self.api.GetSliceTicket(self.auth, slice_name) 
+        
+        # from PLCAPI.GetSlivers.get_slivers()
+        slice_fields = ['slice_id', 'name', 'instantiation', 'expires', 'person_ids', 'slice_tag_ids']
+        slices = self.api.plshell.GetSlices(self.api.plauth, slice_name, slice_fields)
+        # Build up list of users and slice attributes
+        person_ids = set()
+        all_slice_tag_ids = set()
+        for slice in slices:
+            person_ids.update(slice['person_ids'])
+            all_slice_tag_ids.update(slice['slice_tag_ids'])
+        person_ids = list(person_ids)
+        all_slice_tag_ids = list(all_slice_tag_ids)
+        # Get user information
+        all_persons_list = self.api.plshell.GetPersons(self.api.plauth, {'person_id':person_ids,'enabled':True}, ['person_id', 'enabled', 'key_ids'])
+        all_persons = {}
+        for person in all_persons_list:
+            all_persons[person['person_id']] = person        
+
+        # Build up list of keys
+        key_ids = set()
+        for person in all_persons.values():
+            key_ids.update(person['key_ids'])
+        key_ids = list(key_ids)
+        # Get user account keys
+        all_keys_list = self.api.plshell.GetKeys(self.api.plauth, key_ids, ['key_id', 'key', 'key_type'])
+        all_keys = {}
+        for key in all_keys_list:
+            all_keys[key['key_id']] = key
+        # Get slice attributes
+        all_slice_tags_list = self.api.plshell.GetSliceTags(self.api.plauth, all_slice_tag_ids)
+        all_slice_tags = {}
+        for slice_tag in all_slice_tags_list:
+            all_slice_tags[slice_tag['slice_tag_id']] = slice_tag
+           
+        slivers = []
+        for slice in slices:
+            keys = []
+            for person_id in slice['person_ids']:
+                if person_id in all_persons:
+                    person = all_persons[person_id]
+                    if not person['enabled']:
+                        continue
+                    for key_id in person['key_ids']:
+                        if key_id in all_keys:
+                            key = all_keys[key_id]
+                            keys += [{'key_type': key['key_type'],
+                                    'key': key['key']}]
+            attributes = []
+            # All (per-node and global) attributes for this slice
+            slice_tags = []
+            for slice_tag_id in slice['slice_tag_ids']:
+                if slice_tag_id in all_slice_tags:
+                    slice_tags.append(all_slice_tags[slice_tag_id]) 
+            # Per-node sliver attributes take precedence over global
+            # slice attributes, so set them first.
+            # Then comes nodegroup slice attributes
+            # Followed by global slice attributes
+            sliver_attributes = []
+
+            if node is not None:
+                for sliver_attribute in filter(lambda a: a['node_id'] == node['node_id'], slice_tags):
+                    sliver_attributes.append(sliver_attribute['tagname'])
+                    attributes.append({'tagname': sliver_attribute['tagname'],
+                                    'value': sliver_attribute['value']})
+
+            # set nodegroup slice attributes
+            for slice_tag in filter(lambda a: a['nodegroup_id'] in node['nodegroup_ids'], slice_tags):
+                # Do not set any nodegroup slice attributes for
+                # which there is at least one sliver attribute
+                # already set.
+                if slice_tag not in slice_tags:
+                    attributes.append({'tagname': slice_tag['tagname'],
+                        'value': slice_tag['value']})
+
+            for slice_tag in filter(lambda a: a['node_id'] is None, slice_tags):
+                # Do not set any global slice attributes for
+                # which there is at least one sliver attribute
+                # already set.
+                if slice_tag['tagname'] not in sliver_attributes:
+                    attributes.append({'tagname': slice_tag['tagname'],
+                                   'value': slice_tag['value']})
+
+            # XXX Sanity check; though technically this should be a system invariant
+            # checked with an assertion
+            if slice['expires'] > MAXINT:  slice['expires']= MAXINT
+            
+            slivers.append({
+                'hrn': hrn,
+                'name': slice['name'],
+                'slice_id': slice['slice_id'],
+                'instantiation': slice['instantiation'],
+                'expires': slice['expires'],
+                'keys': keys,
+                'attributes': attributes
+            })
+
+        return slivers
+ 
+    def get_peer(self, xrn):
+        hrn, type = urn_to_hrn(xrn)
         # Becaues of myplc federation,  we first need to determine if this
         # slice belongs to out local plc or a myplc peer. We will assume it 
         # is a local site, unless we find out otherwise  
@@ -56,7 +154,9 @@ class Slices(SimpleStorage):
 
         return peer
 
-    def get_sfa_peer(self, hrn):
+    def get_sfa_peer(self, xrn):
+        hrn, type = urn_to_hrn(xrn)
+
         # return the authority for this hrn or None if we are the authority
         sfa_peer = None
         slice_authority = get_authority(hrn)
@@ -67,208 +167,137 @@ class Slices(SimpleStorage):
 
         return sfa_peer 
 
-    def refresh(self):
-        """
-        Update the cached list of slices
-        """
-        # Reload components list
-        now = datetime.datetime.now()
-        if not self.has_key('threshold') or not self.has_key('timestamp') or \
-           now > datetime.datetime.fromtimestamp(time.mktime(time.strptime(self['threshold'], self.api.time_format))):
-            if self.api.interface in ['aggregate']:
-                self.refresh_slices_aggregate()
-            elif self.api.interface in ['slicemgr']:
-                self.refresh_slices_smgr()
-
-    def refresh_slices_aggregate(self):
-        slices = self.api.plshell.GetSlices(self.api.plauth, {'peer_id': None}, ['name'])
-        slice_hrns = [slicename_to_hrn(self.api.hrn, slice['name']) for slice in slices]
-
-         # update timestamp and threshold
-        timestamp = datetime.datetime.now()
-        hr_timestamp = timestamp.strftime(self.api.time_format)
-        delta = datetime.timedelta(hours=self.ttl)
-        threshold = timestamp + delta
-        hr_threshold = threshold.strftime(self.api.time_format)
-        
-        slice_details = {'hrn': slice_hrns,
-                         'timestamp': hr_timestamp,
-                         'threshold': hr_threshold
-                        }
-        self.update(slice_details)
-        self.write()     
-        
-
-    def refresh_slices_smgr(self):
-        slice_hrns = []
-        aggregates = Aggregates(self.api)
-        credential = self.api.getCredential()
-        for aggregate in aggregates:
-            try:
-                slices = aggregates[aggregate].get_slices(credential)
-                slice_hrns.extend(slices)
-            except:
-                print >> log, "Error calling slices at aggregate %(aggregate)s" % locals()
-         # update timestamp and threshold
-        timestamp = datetime.datetime.now()
-        hr_timestamp = timestamp.strftime(self.api.time_format)
-        delta = datetime.timedelta(hours=self.ttl)
-        threshold = timestamp + delta
-        hr_threshold = threshold.strftime(self.api.time_format)
-
-        slice_details = {'hrn': slice_hrns,
-                         'timestamp': hr_timestamp,
-                         'threshold': hr_threshold
-                        }
-        self.update(slice_details)
-        self.write()
-
-
-    def delete_slice(self, hrn):
-        if self.api.interface in ['aggregate']:
-            self.delete_slice_aggregate(hrn)
-        elif self.api.interface in ['slicemgr']:
-            self.delete_slice_smgr(hrn)
-        
-    def delete_slice_aggregate(self, hrn):
-
-        slicename = hrn_to_pl_slicename(hrn)
-        slices = self.api.plshell.GetSlices(self.api.plauth, {'name': slicename})
-        if not slices:
-            return 1        
-        slice = slices[0]
-
-        # determine if this is a peer slice
-        peer = self.get_peer(hrn)
-        if peer:
-            self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'slice', slice['slice_id'], peer)
-        self.api.plshell.DeleteSliceFromNodes(self.api.plauth, slicename, slice['node_ids'])
-        if peer:
-            self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', slice['slice_id'], peer, slice['peer_slice_id'])
-        return 1
-
-    def delete_slice_smgr(self, hrn):
-        credential = self.api.getCredential()
-        aggregates = Aggregates(self.api)
-        for aggregate in aggregates:
-            try:
-                aggregates[aggregate].delete_slice(credential, hrn, caller_cred=self.caller_cred)
-            except:
-                print >> log, "Error calling list nodes at aggregate %s" % aggregate
-                traceback.print_exc(log)
-                exc_type, exc_value, exc_traceback = sys.exc_info()
-                print exc_type, exc_value, exc_traceback
-
-    def create_slice(self, hrn, rspec):
-        
-	# check our slice policy before we procede
-        whitelist = self.policy['slice_whitelist']     
-        blacklist = self.policy['slice_blacklist']
-       
-        if whitelist and hrn not in whitelist or \
-           blacklist and hrn in blacklist:
-            policy_file = self.policy.policy_file
-            print >> log, "Slice %(hrn)s not allowed by policy %(policy_file)s" % locals()
-            return 1
-
-        if self.api.interface in ['aggregate']:     
-            self.create_slice_aggregate(hrn, rspec)
-        elif self.api.interface in ['slicemgr']:
-            self.create_slice_smgr(hrn, rspec)
-
-    def verify_site(self, registry, credential, slice_hrn, peer, sfa_peer):
+    def verify_site(self, registry, credential, slice_hrn, peer, sfa_peer, reg_objects=None):
         authority = get_authority(slice_hrn)
-        site_records = registry.resolve(credential, authority)
-        site = {}
-        for site_record in site_records:
-            if site_record['type'] == 'authority':
-                site = site_record.as_dict()
-        if not site:
-            raise RecordNotFound(authority)
+        authority_urn = hrn_to_urn(authority, 'authority')
+        login_base = None
+        if reg_objects:
+            site = reg_objects['site']
+            login_base = site['login_base']
+        else:
+            site_records = registry.Resolve(authority_urn, [credential])
+            site = {}            
+            for site_record in site_records:            
+                if site_record['type'] == 'authority':
+                    site = site_record
+            if not site:
+                raise RecordNotFound(authority)
+            
         remote_site_id = site.pop('site_id')    
-                
-        login_base = get_leaf(authority)
+        
+        if login_base is None:
+            login_base = get_leaf(authority)
         sites = self.api.plshell.GetSites(self.api.plauth, login_base)
+
         if not sites:
             site_id = self.api.plshell.AddSite(self.api.plauth, site)
             if peer:
-                self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', site_id, peer, remote_site_id)   
+                try:
+                    self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', site_id, peer, remote_site_id)   
+                except Exception,e:
+                    self.api.plshell.DeleteSite(self.api.plauth, site_id)
+                    raise e
             # mark this site as an sfa peer record
-            if sfa_peer:
-                peer_dict = {'type': 'authority', 'hrn': authority, 'peer_authority': sfa_peer, 'pointer': site_id} 
+            if sfa_peer and not reg_objects:
+                peer_dict = {'type': 'authority', 'hrn': authority, 'peer_authority': sfa_peer, 'pointer': site_id}
                 registry.register_peer_object(credential, peer_dict)
-                pass
         else:
             site_id = sites[0]['site_id']
             remote_site_id = sites[0]['peer_site_id']
+            
+	    old_site = sites[0]
+	    #the site is already on the remote agg. Let us update(e.g. max_slices field) it with the latest info.
+            self.sync_site(old_site, site, peer)
 
 
         return (site_id, remote_site_id) 
 
-    def verify_slice(self, registry, credential, slice_hrn, site_id, remote_site_id, peer, sfa_peer):
+    def verify_slice(self, registry, credential, slice_hrn, site_id, remote_site_id, peer, sfa_peer, reg_objects=None):
         slice = {}
         slice_record = None
         authority = get_authority(slice_hrn)
-        slice_records = registry.resolve(credential, slice_hrn)
-        for record in slice_records:
-            if record['type'] in ['slice']:
-                slice_record = record
-        if not slice_record:
-            raise RecordNotFound(hrn)
+
+        if reg_objects:
+            slice_record = reg_objects['slice_record']
+        else:
+            slice_records = registry.Resolve(slice_hrn, [credential])
+    
+            for record in slice_records:
+                if record['type'] in ['slice']:
+                    slice_record = record
+            if not slice_record:
+                raise RecordNotFound(hrn)
+            
+        
         slicename = hrn_to_pl_slicename(slice_hrn)
         parts = slicename.split("_")
         login_base = parts[0]
-        slices = self.api.plshell.GetSlices(self.api.plauth, [slicename], ['slice_id', 'node_ids', 'site_id']) 
+        slices = self.api.plshell.GetSlices(self.api.plauth, [slicename]) 
         if not slices:
             slice_fields = {}
             slice_keys = ['name', 'url', 'description']
             for key in slice_keys:
                 if key in slice_record and slice_record[key]:
                     slice_fields[key] = slice_record[key]
-
-            # add the slice  
+            # add the slice                          
             slice_id = self.api.plshell.AddSlice(self.api.plauth, slice_fields)
             slice = slice_fields
             slice['slice_id'] = slice_id
 
             # mark this slice as an sfa peer record
             if sfa_peer:
-                peer_dict = {'type': 'slice', 'hrn': slice_hrn, 'peer_authority': sfa_peer, 'pointer': slice_id} 
+                peer_dict = {'type': 'slice', 'hrn': slice_hrn, 'peer_authority': sfa_peer, 'pointer': slice_id}
                 registry.register_peer_object(credential, peer_dict)
-                pass
 
             #this belongs to a peer
             if peer:
-                self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', slice_id, peer, slice_record['pointer'])
+                try:
+                    self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', slice_id, peer, slice_record['pointer'])
+                except Exception,e:
+                    self.api.plshell.DeleteSlice(self.api.plauth,slice_id)
+                    raise e
             slice['node_ids'] = []
         else:
             slice = slices[0]
             slice_id = slice['slice_id']
             site_id = slice['site_id']
+	    #the slice is alredy on the remote agg. Let us update(e.g. expires field) it with the latest info.
+	    self.sync_slice(slice, slice_record, peer)
 
         slice['peer_slice_id'] = slice_record['pointer']
-        self.verify_persons(registry, credential, slice_record, site_id, remote_site_id, peer, sfa_peer)
+        self.verify_persons(registry, credential, slice_record, site_id, remote_site_id, peer, sfa_peer, reg_objects)
     
         return slice        
 
-    def verify_persons(self, registry, credential, slice_record, site_id, remote_site_id, peer, sfa_peer):
+    def verify_persons(self, registry, credential, slice_record, site_id, remote_site_id, peer, sfa_peer, reg_objects=None):
         # get the list of valid slice users from the registry and make 
         # sure they are added to the slice 
         slicename = hrn_to_pl_slicename(slice_record['hrn'])
-        researchers = slice_record.get('researcher', [])
+        if reg_objects:
+            researchers = reg_objects['users'].keys()
+        else:
+            researchers = slice_record.get('researcher', [])
         for researcher in researchers:
-            person_record = {}
-            person_records = registry.resolve(credential, researcher)
-            for record in person_records:
-                if record['type'] in ['user']:
-                    person_record = record
-            if not person_record:
-                pass
-            person_dict = person_record.as_dict()
+            if reg_objects:
+                person_dict = reg_objects['users'][researcher]
+            else:
+                person_records = registry.Resolve(researcher, [credential])
+                for record in person_records:
+                    if record['type'] in ['user'] and record['enabled']:
+                        person_record = record
+                if not person_record:
+                    return 1
+                person_dict = person_record
+
+            local_person=False
             if peer:
                 peer_id = self.api.plshell.GetPeers(self.api.plauth, {'shortname': peer}, ['peer_id'])[0]['peer_id']
                 persons = self.api.plshell.GetPersons(self.api.plauth, {'email': [person_dict['email']], 'peer_id': peer_id}, ['person_id', 'key_ids'])
-
+                if not persons:
+                    persons = self.api.plshell.GetPersons(self.api.plauth, [person_dict['email']], ['person_id', 'key_ids'])
+                    if persons:
+                        local_person=True
+                        
             else:
                 persons = self.api.plshell.GetPersons(self.api.plauth, [person_dict['email']], ['person_id', 'key_ids'])   
         
@@ -278,12 +307,15 @@ class Slices(SimpleStorage):
                 
                 # mark this person as an sfa peer record
                 if sfa_peer:
-                    peer_dict = {'type': 'user', 'hrn': researcher, 'peer_authority': sfa_peer, 'pointer': person_id} 
+                    peer_dict = {'type': 'user', 'hrn': researcher, 'peer_authority': sfa_peer, 'pointer': person_id}
                     registry.register_peer_object(credential, peer_dict)
-                    pass
 
                 if peer:
-                    self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
+                    try:
+                        self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
+                    except Exception,e:
+                        self.api.plshell.DeletePerson(self.api.plauth,person_id)
+                        raise e
                 key_ids = []
             else:
                 person_id = persons[0]['person_id']
@@ -292,19 +324,25 @@ class Slices(SimpleStorage):
 
             # if this is a peer person, we must unbind them from the peer or PLCAPI will throw
             # an error
-            if peer:
-                self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'person', person_id, peer)
-                self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'site', site_id,  peer)
+            try:
+                if peer and not local_person:
+                    self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'person', person_id, peer)
+                if peer:
+                    self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'site', site_id,  peer)
 
-            self.api.plshell.AddPersonToSlice(self.api.plauth, person_dict['email'], slicename)
-            self.api.plshell.AddPersonToSite(self.api.plauth, person_dict['email'], site_id)
-            if peer:
-                self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
-                self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', site_id, peer, remote_site_id)
+                self.api.plshell.AddPersonToSlice(self.api.plauth, person_dict['email'], slicename)
+                self.api.plshell.AddPersonToSite(self.api.plauth, person_dict['email'], site_id)
+            finally:
+                if peer:
+                    try: self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', site_id, peer, remote_site_id)
+                    except: pass
+                if peer and not local_person:
+                    try: self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
+                    except: pass
             
-            self.verify_keys(registry, credential, person_dict, key_ids, person_id, peer)
+            self.verify_keys(registry, credential, person_dict, key_ids, person_id, peer, local_person)
 
-    def verify_keys(self, registry, credential, person_dict, key_ids, person_id,  peer):
+    def verify_keys(self, registry, credential, person_dict, key_ids, person_id,  peer, local_person):
         keylist = self.api.plshell.GetKeys(self.api.plauth, key_ids, ['key'])
         keys = [key['key'] for key in keylist]
         
@@ -313,28 +351,30 @@ class Slices(SimpleStorage):
         for personkey in person_dict['keys']:
             if personkey not in keys:
                 key = {'key_type': 'ssh', 'key': personkey}
-                if peer:
-                    self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'person', person_id, peer)
-                key_id = self.api.plshell.AddPersonKey(self.api.plauth, person_dict['email'], key)
-                if peer:
-                    self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
-                    try: self.api.plshell.BindObjectToPeer(self.api.plauth, 'key', key_id, peer, key_ids.pop(0))
-
-                    except: pass   
-
-    def create_slice_aggregate(self, hrn, rspec):
-
+                try:
+                    if peer:
+                        self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'person', person_id, peer)
+                    key_id = self.api.plshell.AddPersonKey(self.api.plauth, person_dict['email'], key)
+                finally:
+                    if peer and not local_person:
+                        self.api.plshell.BindObjectToPeer(self.api.plauth, 'person', person_id, peer, person_dict['pointer'])
+                    if peer:
+                        # xxx - thierry how are we getting the peer_key_id in here ?
+                        try: self.api.plshell.BindObjectToPeer(self.api.plauth, 'key', key_id, peer, key_ids.pop(0))
+                        except: pass   
+
+    def create_slice_aggregate(self, xrn, rspec):
+        hrn, type = urn_to_hrn(xrn)
         # Determine if this is a peer slice
         peer = self.get_peer(hrn)
         sfa_peer = self.get_sfa_peer(hrn)
 
-        spec = Rspec(rspec)
+        spec = RSpec(rspec)
         # Get the slice record from sfa
         slicename = hrn_to_pl_slicename(hrn) 
         slice = {}
         slice_record = None
-        registries = Registries(self.api)
-        registry = registries[self.api.hrn]
+        registry = self.api.registries[self.api.hrn]
         credential = self.api.getCredential()
 
         site_id, remote_site_id = self.verify_site(registry, credential, hrn, peer, sfa_peer)
@@ -346,121 +386,83 @@ class Slices(SimpleStorage):
 
         # get netspec details
         nodespecs = spec.getDictsByTagName('NodeSpec')
-        nodes = []
+
+        # dict in which to store slice attributes to set for the nodes
+        nodes = {}
         for nodespec in nodespecs:
             if isinstance(nodespec['name'], list):
-                nodes.extend(nodespec['name'])
+                for nodename in nodespec['name']:
+                    nodes[nodename] = {}
+                    for k in nodespec.keys():
+                        rspec_attribute_value = nodespec[k]
+                        if (self.rspec_to_slice_tag.has_key(k)):
+                            slice_tag_name = self.rspec_to_slice_tag[k]
+                            nodes[nodename][slice_tag_name] = rspec_attribute_value
             elif isinstance(nodespec['name'], StringTypes):
-                nodes.append(nodespec['name'])
-
+                nodename = nodespec['name']
+                nodes[nodename] = {}
+                for k in nodespec.keys():
+                    rspec_attribute_value = nodespec[k]
+                    if (self.rspec_to_slice_tag.has_key(k)):
+                        slice_tag_name = self.rspec_to_slice_tag[k]
+                        nodes[nodename][slice_tag_name] = rspec_attribute_value
+
+                for k in nodespec.keys():
+                    rspec_attribute_value = nodespec[k]
+                    if (self.rspec_to_slice_tag.has_key(k)):
+                        slice_tag_name = self.rspec_to_slice_tag[k]
+                        nodes[nodename][slice_tag_name] = rspec_attribute_value
+
+        node_names = nodes.keys()
         # remove nodes not in rspec
-        deleted_nodes = list(set(hostnames).difference(nodes))
+        deleted_nodes = list(set(hostnames).difference(node_names))
         # add nodes from rspec
-        added_nodes = list(set(nodes).difference(hostnames))
-
-        if peer:
-            self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'slice', slice['slice_id'], peer)
-        self.api.plshell.AddSliceToNodes(self.api.plauth, slicename, added_nodes) 
-        self.api.plshell.DeleteSliceFromNodes(self.api.plauth, slicename, deleted_nodes)
-        if peer:
-            self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', slice['slice_id'], peer, slice['peer_slice_id'])
-
-        return 1
-
-    def create_slice_smgr(self, hrn, rspec):
-        spec = Rspec()
-        tempspec = Rspec()
-        spec.parseString(rspec)
-        slicename = hrn_to_pl_slicename(hrn)
-        specDict = spec.toDict()
-        if specDict.has_key('Rspec'): specDict = specDict['Rspec']
-        if specDict.has_key('start_time'): start_time = specDict['start_time']
-        else: start_time = 0
-        if specDict.has_key('end_time'): end_time = specDict['end_time']
-        else: end_time = 0
-
-        rspecs = {}
-        aggregates = Aggregates(self.api)
-        credential = self.api.getCredential()
-
-        # split the netspecs into individual rspecs
-        netspecs = spec.getDictsByTagName('NetSpec')
-        for netspec in netspecs:
-            net_hrn = netspec['name']
-            resources = {'start_time': start_time, 'end_time': end_time, 'networks': netspec}
-            resourceDict = {'Rspec': resources}
-            tempspec.parseDict(resourceDict)
-            rspecs[net_hrn] = tempspec.toxml()
-
-        # send each rspec to the appropriate aggregate/sm 
-        for net_hrn in rspecs:
-            try:
-                # if we are directly connected to the aggregate then we can just send them the rspec
-                # if not, then we may be connected to an sm thats connected to the aggregate  
-                if net_hrn in aggregates:
-                    # send the whloe rspec to the local aggregate
-                    if net_hrn in [self.api.hrn]:
-                        aggregates[net_hrn].create_slice(credential, hrn, rspec, caller_cred=self.caller_cred)
-                    else:
-                        aggregates[net_hrn].create_slice(credential, hrn, rspecs[net_hrn], caller_cred=self.caller_cred)
-                else:
-                    # lets forward this rspec to a sm that knows about the network    
-                    for aggregate in aggregates:
-                        network_found = aggregates[aggregate].get_aggregates(credential, net_hrn)
-                        if network_networks:
-                            aggregates[aggregate].create_slice(credential, hrn, rspecs[net_hrn], caller_cred=self.caller_cred)
-                     
-            except:
-                print >> log, "Error creating slice %(hrn)s at aggregate %(net_hrn)s" % locals()
-                traceback.print_exc()
-        return 1
+        added_nodes = list(set(node_names).difference(hostnames))
 
+        try:
+            if peer:
+                self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'slice', slice['slice_id'], peer)
 
-    def start_slice(self, hrn):
-        if self.api.interface in ['aggregate']:
-            self.start_slice_aggregate(hrn)
-        elif self.api.interface in ['slicemgr']:
-            self.start_slice_smgr(hrn)
+            self.api.plshell.AddSliceToNodes(self.api.plauth, slicename, added_nodes) 
 
-    def start_slice_aggregate(self, hrn):
-        slicename = hrn_to_pl_slicename(hrn)
-        slices = self.api.plshell.GetSlices(self.api.plauth, {'name': slicename}, ['slice_id'])
-        if not slices:
-            raise RecordNotFound(hrn)
-        slice_id = slices[0]
-        attributes = self.api.plshell.GetSliceAttributes(self.api.plauth, {'slice_id': slice_id, 'name': 'enabled'}, ['slice_attribute_id'])
-        attribute_id = attreibutes[0]['slice_attribute_id']
-        self.api.plshell.UpdateSliceAttribute(self.api.plauth, attribute_id, "1" )
-        return 1
-
-    def start_slice_smgr(self, hrn):
-        credential = self.api.getCredential()
-        aggregates = Aggregates(self.api)
-        for aggregate in aggregates:
-            aggregates[aggregate].start_slice(credential, hrn)
-        return 1
+            # Add recognized slice tags
+            for node_name in node_names:
+                node = nodes[node_name]
+                for slice_tag in node.keys():
+                    value = node[slice_tag]
+                    if (isinstance(value, list)):
+                        value = value[0]
 
+                    self.api.plshell.AddSliceTag(self.api.plauth, slicename, slice_tag, value, node_name)
 
-    def stop_slice(self, hrn):
-        if self.api.interface in ['aggregate']:
-            self.stop_slice_aggregate(hrn)
-        elif self.api.interface in ['slicemgr']:
-            self.stop_slice_smgr(hrn)
+            self.api.plshell.DeleteSliceFromNodes(self.api.plauth, slicename, deleted_nodes)
+        finally:
+            if peer:
+                self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', slice['slice_id'], peer, slice['peer_slice_id'])
 
-    def stop_slice_aggregate(self, hrn):
-        slicename = hrn_to_pl_slicename(hrn)
-        slices = self.api.plshell.GetSlices(self.api.plauth, {'name': slicename}, ['slice_id'])
-        if not slices:
-            raise RecordNotFound(hrn)
-        slice_id = slices[0]['slice_id']
-        attributes = self.api.plshell.GetSliceAttributes(self.api.plauth, {'slice_id': slice_id, 'name': 'enabled'}, ['slice_attribute_id'])
-        attribute_id = attributes[0]['slice_attribute_id']
-        self.api.plshell.UpdateSliceAttribute(self.api.plauth, attribute_id, "0")
         return 1
 
-    def stop_slice_smgr(self, hrn):
-        credential = self.api.getCredential()
-        aggregates = Aggregates(self.api)
-        for aggregate in aggregates:
-            aggregates[aggregate].stop_slice(credential, hrn)  
+    def sync_site(self, old_record, new_record, peer):
+        if old_record['max_slices'] != new_record['max_slices'] or old_record['max_slivers'] != new_record['max_slivers']:
+            try:
+                if peer:
+                    self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'site', old_record['site_id'], peer)
+                if old_record['max_slices'] != new_record['max_slices']:
+                    self.api.plshell.UpdateSite(self.api.plauth, old_record['site_id'], {'max_slices' : new_record['max_slices']})
+                if old_record['max_slivers'] != new_record['max_slivers']:
+                    self.api.plshell.UpdateSite(self.api.plauth, old_record['site_id'], {'max_slivers' : new_record['max_slivers']})
+            finally:
+                if peer:
+                    self.api.plshell.BindObjectToPeer(self.api.plauth, 'site', old_record['site_id'], peer, old_record['peer_site_id'])
+	return 1
 
+    def sync_slice(self, old_record, new_record, peer):
+        if old_record['expires'] != new_record['expires']:
+            try:
+                if peer:
+                    self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'slice', old_record['slice_id'], peer)
+                self.api.plshell.UpdateSlice(self.api.plauth, old_record['slice_id'], {'expires' : new_record['expires']})
+            finally:
+                if peer:
+                    self.api.plshell.BindObjectToPeer(self.api.plauth, 'slice', old_record['slice_id'], peer, old_record['peer_slice_id'])
+	return 1