sfa/senslab/slabslices.py

   1 from types import StringTypes
   2 from collections import defaultdict
   3 import sys
   4 from sfa.util.xrn import get_leaf, get_authority, urn_to_hrn
   5 from sfa.util.plxrn import hrn_to_pl_slicename
   6 from sfa.util.policy import Policy
   7 from sfa.rspecs.rspec import RSpec
   8 from sfa.plc.vlink import VLink
   9 from sfa.util.xrn import Xrn
  10
  11 MAXINT =  2L**31-1
  12
  13 class SlabSlices:
  14
  15     rspec_to_slice_tag = {'max_rate':'net_max_rate'}
  16
  17     #def __init__(self, api, ttl = .5, origin_hrn=None):
  18         #self.api = api
  19         ##filepath = path + os.sep + filename
  20         #self.policy = Policy(self.api)
  21         #self.origin_hrn = origin_hrn
  22         #self.registry = api.registries[api.hrn]
  23         #self.credential = api.getCredential()
  24         #self.nodes = []
  25         #self.persons = []
  26
  27
  28     def __init__(self, driver):
  29         self.driver = driver
  30     #def get_slivers(self, xrn, node=None):
  31         #hrn, type = urn_to_hrn(xrn)
  32
  33         #slice_name = hrn_to_pl_slicename(hrn)
  34         ## XX Should we just call PLCAPI.GetSliceTicket(slice_name) instead
  35         ## of doing all of this?
  36         ##return self.api.driver.GetSliceTicket(self.auth, slice_name)
  37
  38         ## from PLCAPI.GetSlivers.get_slivers()
  39         #slice_fields = ['slice_id', 'name', 'instantiation', 'expires', 'person_ids', 'slice_tag_ids']
  40         #slices = self.api.driver.GetSlices(slice_name, slice_fields)
  41         ## Build up list of users and slice attributes
  42         #person_ids = set()
  43         #all_slice_tag_ids = set()
  44         #for slice in slices:
  45             #person_ids.update(slice['person_ids'])
  46             #all_slice_tag_ids.update(slice['slice_tag_ids'])
  47         #person_ids = list(person_ids)
  48         #all_slice_tag_ids = list(all_slice_tag_ids)
  49         ## Get user information
  50         #all_persons_list = self.api.driver.GetPersons({'person_id':person_ids,'enabled':True}, ['person_id', 'enabled', 'key_ids'])
  51         #all_persons = {}
  52         #for person in all_persons_list:
  53             #all_persons[person['person_id']] = person
  54
  55         ## Build up list of keys
  56         #key_ids = set()
  57         #for person in all_persons.values():
  58             #key_ids.update(person['key_ids'])
  59         #key_ids = list(key_ids)
  60         ## Get user account keys
  61         #all_keys_list = self.api.driver.GetKeys(key_ids, ['key_id', 'key', 'key_type'])
  62         #all_keys = {}
  63         #for key in all_keys_list:
  64             #all_keys[key['key_id']] = key
  65         ## Get slice attributes
  66         #all_slice_tags_list = self.api.driver.GetSliceTags(all_slice_tag_ids)
  67         #all_slice_tags = {}
  68         #for slice_tag in all_slice_tags_list:
  69             #all_slice_tags[slice_tag['slice_tag_id']] = slice_tag
  70
  71         #slivers = []
  72         #for slice in slices:
  73             #keys = []
  74             #for person_id in slice['person_ids']:
  75                 #if person_id in all_persons:
  76                     #person = all_persons[person_id]
  77                     #if not person['enabled']:
  78                         #continue
  79                     #for key_id in person['key_ids']:
  80                         #if key_id in all_keys:
  81                             #key = all_keys[key_id]
  82                             #keys += [{'key_type': key['key_type'],
  83                                     #'key': key['key']}]
  84             #attributes = []
  85             ## All (per-node and global) attributes for this slice
  86             #slice_tags = []
  87             #for slice_tag_id in slice['slice_tag_ids']:
  88                 #if slice_tag_id in all_slice_tags:
  89                     #slice_tags.append(all_slice_tags[slice_tag_id])
  90             ## Per-node sliver attributes take precedence over global
  91             ## slice attributes, so set them first.
  92             ## Then comes nodegroup slice attributes
  93             ## Followed by global slice attributes
  94             #sliver_attributes = []
  95
  96             #if node is not None:
  97                 #for sliver_attribute in filter(lambda a: a['node_id'] == node['node_id'], slice_tags):
  98                     #sliver_attributes.append(sliver_attribute['tagname'])
  99                     #attributes.append({'tagname': sliver_attribute['tagname'],
 100                                     #'value': sliver_attribute['value']})
 101
 102             ## set nodegroup slice attributes
 103             #for slice_tag in filter(lambda a: a['nodegroup_id'] in node['nodegroup_ids'], slice_tags):
 104                 ## Do not set any nodegroup slice attributes for
 105                 ## which there is at least one sliver attribute
 106                 ## already set.
 107                 #if slice_tag not in slice_tags:
 108                     #attributes.append({'tagname': slice_tag['tagname'],
 109                         #'value': slice_tag['value']})
 110
 111             #for slice_tag in filter(lambda a: a['node_id'] is None, slice_tags):
 112                 ## Do not set any global slice attributes for
 113                 ## which there is at least one sliver attribute
 114                 ## already set.
 115                 #if slice_tag['tagname'] not in sliver_attributes:
 116                     #attributes.append({'tagname': slice_tag['tagname'],
 117                                    #'value': slice_tag['value']})
 118
 119             ## XXX Sanity check; though technically this should be a system invariant
 120             ## checked with an assertion
 121             #if slice['expires'] > MAXINT:  slice['expires']= MAXINT
 122
 123             #slivers.append({
 124                 #'hrn': hrn,
 125                 #'name': slice['name'],
 126                 #'slice_id': slice['slice_id'],
 127                 #'instantiation': slice['instantiation'],
 128                 #'expires': slice['expires'],
 129                 #'keys': keys,
 130                 #'attributes': attributes
 131             #})
 132
 133         #return slivers
 134
 135     def get_peer(self, xrn):
 136         hrn, type = urn_to_hrn(xrn)
 137         # Becaues of myplc federation,  we first need to determine if this
 138         # slice belongs to out local plc or a myplc peer. We will assume it
 139         # is a local site, unless we find out otherwise
 140         peer = None
 141         print>>sys.stderr, " \r\n \r\n \t slices.py get_peer slice_authority  "
 142         # get this slice's authority (site)
 143         slice_authority = get_authority(hrn)
 144
 145         # get this site's authority (sfa root authority or sub authority)
 146         site_authority = get_authority(slice_authority).lower()
 147
 148         # check if we are already peered with this site_authority, if so
 149         peers = self.driver.GetPeers({'hrn':site_authority})
 150         print>>sys.stderr, " \r\n \r\n \t slices.py get_peer slice_authority  %s site_authority %s" %(slice_authority,site_authority)
 151         for peer_record in peers:
 152             names = [name.lower() for name in peer_record.values() if isinstance(name, StringTypes)]
 153             if site_authority in names:
 154                 peer = peer_record
 155         print>>sys.stderr, " \r\n \r\n \t slices.py get_peer peer  %s " %(peer)
 156         return peer
 157
 158     def get_sfa_peer(self, xrn):
 159         hrn, type = urn_to_hrn(xrn)
 160
 161         # return the authority for this hrn or None if we are the authority
 162         sfa_peer = None
 163         slice_authority = get_authority(hrn)
 164         site_authority = get_authority(slice_authority)
 165
 166         if site_authority != self.driver.hrn:
 167             sfa_peer = site_authority
 168
 169         return sfa_peer
 170
 171     def verify_slice_nodes(self, slice, requested_slivers, peer):
 172         current_slivers = []
 173         deleted_nodes = []
 174         if slice['node_ids']:
 175             nodes = self.driver.GetNodes(slice['node_ids'], ['hostname'])
 176             current_slivers = [node['hostname'] for node in nodes]
 177
 178             # remove nodes not in rspec
 179             deleted_nodes = list(set(current_slivers).difference(requested_slivers))
 180
 181         # add nodes from rspec
 182         added_nodes = list(set(requested_slivers).difference(current_slivers))
 183         print>>sys.stderr , "\r\n \r\n \t slices.py  verify_slice_nodes added_nodes %s slice %s" %( added_nodes,slice)
 184         try:
 185             #if peer:
 186                 #self.driver.UnBindObjectFromPeer('slice', slice['slice_id'], peer['shortname'])
 187             #PI is a list, get the only username in this list
 188             #so that the OAR/LDAP knows the user: remove the authority from the name
 189             tmp=  slice['PI'][0].split(".")
 190             username = tmp[(len(tmp)-1)]
 191             self.driver.AddSliceToNodes(slice['name'], added_nodes, username)
 192             if deleted_nodes:
 193                 self.driver.DeleteSliceFromNodes(slice['name'], deleted_nodes)
 194
 195         except:
 196             self.logger.log_exc('Failed to add/remove slice from nodes')
 197
 198     def free_egre_key(self):
 199         used = set()
 200         for tag in self.driver.GetSliceTags({'tagname': 'egre_key'}):
 201                 used.add(int(tag['value']))
 202
 203         for i in range(1, 256):
 204             if i not in used:
 205                 key = i
 206                 break
 207         else:
 208             raise KeyError("No more EGRE keys available")
 209
 210         return str(key)
 211
 212
 213
 214
 215
 216
 217     def handle_peer(self, site, slice, persons, peer):
 218         if peer:
 219             # bind site
 220             try:
 221                 if site:
 222                     self.driver.BindObjectToPeer('site', site['site_id'], peer['shortname'], slice['site_id'])
 223             except Exception,e:
 224                 self.driver.DeleteSite(site['site_id'])
 225                 raise e
 226
 227             # bind slice
 228             try:
 229                 if slice:
 230                     self.driver.BindObjectToPeer('slice', slice['slice_id'], peer['shortname'], slice['slice_id'])
 231             except Exception,e:
 232                 self.driver.DeleteSlice(slice['slice_id'])
 233                 raise e
 234
 235             # bind persons
 236             for person in persons:
 237                 try:
 238                     self.driver.BindObjectToPeer('person',
 239                                                      person['person_id'], peer['shortname'], person['peer_person_id'])
 240
 241                     for (key, remote_key_id) in zip(person['keys'], person['key_ids']):
 242                         try:
 243                             self.driver.BindObjectToPeer( 'key', key['key_id'], peer['shortname'], remote_key_id)
 244                         except:
 245                             self.driver.DeleteKey(key['key_id'])
 246                             self.logger("failed to bind key: %s to peer: %s " % (key['key_id'], peer['shortname']))
 247                 except Exception,e:
 248                     self.driver.DeletePerson(person['person_id'])
 249                     raise e
 250
 251         return slice
 252
 253     #def verify_site(self, slice_xrn, slice_record={}, peer=None, sfa_peer=None, options={}):
 254         #(slice_hrn, type) = urn_to_hrn(slice_xrn)
 255         #site_hrn = get_authority(slice_hrn)
 256         ## login base can't be longer than 20 characters
 257         ##slicename = hrn_to_pl_slicename(slice_hrn)
 258         #authority_name = slice_hrn.split('.')[0]
 259         #login_base = authority_name[:20]
 260         #print >>sys.stderr, " \r\n \r\n \t\t SLABSLICES.PY verify_site authority_name %s  login_base %s slice_hrn %s" %(authority_name,login_base,slice_hrn)
 261
 262         #sites = self.driver.GetSites(login_base)
 263         #if not sites:
 264             ## create new site record
 265             #site = {'name': 'geni.%s' % authority_name,
 266                     #'abbreviated_name': authority_name,
 267                     #'login_base': login_base,
 268                     #'max_slices': 100,
 269                     #'max_slivers': 1000,
 270                     #'enabled': True,
 271                     #'peer_site_id': None}
 272             #if peer:
 273                 #site['peer_site_id'] = slice_record.get('site_id', None)
 274             #site['site_id'] = self.driver.AddSite(site)
 275             ## exempt federated sites from monitor policies
 276             #self.driver.AddSiteTag(site['site_id'], 'exempt_site_until', "20200101")
 277
 278             ### is this still necessary?
 279             ### add record to the local registry
 280             ##if sfa_peer and slice_record:
 281                 ##peer_dict = {'type': 'authority', 'hrn': site_hrn, \
 282                              ##'peer_authority': sfa_peer, 'pointer': site['site_id']}
 283                 ##self.registry.register_peer_object(self.credential, peer_dict)
 284         #else:
 285             #site =  sites[0]
 286             #if peer:
 287                 ## unbind from peer so we can modify if necessary. Will bind back later
 288                 #self.driver.UnBindObjectFromPeer('site', site['site_id'], peer['shortname'])
 289
 290         #return site
 291
 292     def verify_slice(self, slice_hrn, slice_record, peer, sfa_peer, options={} ):
 293         #slicename = hrn_to_pl_slicename(slice_hrn)
 294         #parts = hrn_to_pl_slicename(slice_hrn).split("_")
 295         login_base = slice_hrn.split(".")[0]
 296         slicename = slice_hrn
 297         slices = self.driver.GetSlices([slicename])
 298         print>>sys.stderr, " \r\n \r\rn Slices.py verify_slice slicename %s slices %s slice_record %s"%(slicename ,slices, slice_record)
 299         if not slices:
 300             slice = {'name': slicename,
 301                      'url': slice_record.get('url', slice_hrn),
 302                      #'description': slice_record.get('description', slice_hrn)
 303                      }
 304             # add the slice
 305             slice['slice_id'] = self.driver.AddSlice(slice)
 306             slice['node_ids'] = []
 307             slice['person_ids'] = []
 308             #if peer:
 309                 #slice['peer_slice_id'] = slice_record.get('slice_id', None)
 310             # mark this slice as an sfa peer record
 311             #if sfa_peer:
 312                 #peer_dict = {'type': 'slice', 'hrn': slice_hrn,
 313                              #'peer_authority': sfa_peer, 'pointer': slice['slice_id']}
 314                 #self.registry.register_peer_object(self.credential, peer_dict)
 315         else:
 316             slice = slices[0]
 317             slice.update(slice_record)
 318             #del slice['last_updated']
 319             #del slice['date_created']
 320             #if peer:
 321                 #slice['peer_slice_id'] = slice_record.get('slice_id', None)
 322                 ## unbind from peer so we can modify if necessary. Will bind back later
 323                 #self.driver.UnBindObjectFromPeer('slice', slice['slice_id'], peer['shortname'])
 324                 #Update existing record (e.g. expires field) it with the latest info.
 325             ##if slice_record and slice['expires'] != slice_record['expires']:
 326                 ##self.driver.UpdateSlice( slice['slice_id'], {'expires' : slice_record['expires']})
 327
 328         return slice
 329
 330     #def get_existing_persons(self, users):
 331     def verify_persons(self, slice_hrn, slice_record, users,  peer, sfa_peer, options={}):
 332         users_by_id = {}
 333         users_by_hrn = {}
 334         users_dict = {}
 335
 336         for user in users:
 337             if 'person_id' in user and 'hrn' in user:
 338                 users_by_id[user['person_id']] = user
 339                 users_dict[user['person_id']] = {'person_id':user['person_id'], 'hrn':user['hrn']}
 340
 341                 users_by_hrn[user['hrn']] = user
 342                 users_dict[user['hrn']] = {'person_id':user['person_id'], 'hrn':user['hrn']}
 343
 344         #print>>sys.stderr, " \r\n \r\n \t slabslices.py verify_person  users_dict %s \r\n user_by_hrn %s \r\n \tusers_by_id %s " %( users_dict,users_by_hrn, users_by_id)
 345
 346         existing_user_ids = []
 347         existing_user_hrns = []
 348         existing_users= []
 349         #Check if user is in LDAP using its hrn.
 350         #Assuming Senslab is centralised :  one LDAP for all sites, user_id unknown from LDAP
 351         # LDAP does not provide users id, therfore we rely on hrns
 352         if users_by_hrn:
 353             existing_users = self.driver.GetPersons({'hrn': users_by_hrn.keys()},
 354                                                         ['hrn','pkey'])
 355             if existing_users:
 356                 for user in existing_users :
 357                     #for  k in users_dict[user['hrn']] :
 358                     existing_user_hrns.append (users_dict[user['hrn']]['hrn'])
 359                     existing_user_ids.append (users_dict[user['hrn']]['person_id'])
 360                     #print>>sys.stderr, " \r\n \r\n \t slabslices.py verify_person  existing_user_ids.append (users_dict[user['hrn']][k]) %s \r\n existing_users %s " %(  existing_user_ids,existing_users)
 361
 362
 363         # requested slice users
 364         requested_user_ids = users_by_id.keys()
 365         requested_user_hrns = users_by_hrn.keys()
 366         #print>>sys.stderr, " \r\n \r\n \t slabslices.py verify_person  requested_user_ids  %s user_by_hrn %s " %( requested_user_ids,users_by_hrn)
 367         # existing slice users
 368         existing_slice_users_filter = {'hrn': slice_record.get('PI', [])}
 369         #print>>sys.stderr, " \r\n \r\n slices.py verify_person requested_user_ids %s existing_slice_users_filter %s slice_record %s" %(requested_user_ids,existing_slice_users_filter,slice_record)
 370
 371         existing_slice_users = self.driver.GetPersons(existing_slice_users_filter,['hrn','pkey'])
 372         #print>>sys.stderr, " \r\n \r\n slices.py verify_person   existing_slice_users %s " %(existing_slice_users)
 373
 374         existing_slice_user_hrns = [user['hrn'] for user in existing_slice_users]
 375
 376         #print>>sys.stderr, " \r\n \r\n slices.py verify_person requested_user_ids %s  existing_slice_user_hrns %s " %(requested_user_ids,existing_slice_user_hrns)
 377         # users to be added, removed or updated
 378
 379         added_user_hrns = set(requested_user_hrns).difference(set(existing_user_hrns))
 380
 381         added_slice_user_hrns = set(requested_user_hrns).difference(existing_slice_user_hrns)
 382
 383         removed_user_hrns = set(existing_slice_user_hrns).difference(requested_user_hrns)
 384
 385
 386         updated_user_hrns = set(existing_slice_user_hrns).intersection(requested_user_hrns)
 387         #print>>sys.stderr, " \r\n \r\n slices.py verify_persons  added_user_ids %s added_slice_user_ids %s " %(added_user_ids,added_slice_user_ids)
 388         #print>>sys.stderr, " \r\n \r\n slices.py verify_persons  removed_user_hrns %s updated_user_hrns %s " %(removed_user_hrns,updated_user_hrns)
 389         # Remove stale users (only if we are not appending)
 390         append = options.get('append', True)
 391         if append == False:
 392             for removed_user_hrn in removed_user_hrns:
 393                 self.driver.DeletePersonFromSlice(removed_user_hrn, slice_record['name'])
 394         # update_existing users
 395         updated_users_list = [user for user in existing_slice_users if user['hrn'] in \
 396           updated_user_hrns]
 397         print>>sys.stderr, " \r\n \r\n slices.py verify_persons  removed_user_hrns %s updated_users_list %s " %(removed_user_hrns,updated_users_list)
 398         #self.verify_keys(existing_slice_users, updated_users_list, peer, append)
 399
 400         added_persons = []
 401         # add new users
 402         for added_user_hrn in added_user_hrns:
 403             added_user = users_dict[added_user_hrn]
 404             #hrn, type = urn_to_hrn(added_user['urn'])
 405             person = {
 406                 #'first_name': added_user.get('first_name', hrn),
 407                 #'last_name': added_user.get('last_name', hrn),
 408                 'person_id': added_user['person_id'],
 409                 #'peer_person_id': None,
 410                 #'keys': [],
 411                 #'key_ids': added_user.get('key_ids', []),
 412
 413             }
 414             #print>>sys.stderr, " \r\n \r\n slices.py verify_persons   added_user_ids %s " %(added_user_ids)
 415             person['person_id'] = self.driver.AddPerson(person)
 416             if peer:
 417                 person['peer_person_id'] = added_user['person_id']
 418             added_persons.append(person)
 419
 420             # enable the account
 421             self.driver.UpdatePerson(person['person_id'], {'enabled': True})
 422
 423             # add person to site
 424             #self.driver.AddPersonToSite(added_user_id, login_base)
 425
 426             #for key_string in added_user.get('keys', []):
 427                 #key = {'key':key_string, 'key_type':'ssh'}
 428                 #key['key_id'] = self.driver.AddPersonKey(person['person_id'], key)
 429                 #person['keys'].append(key)
 430
 431             # add the registry record
 432             #if sfa_peer:
 433                 #peer_dict = {'type': 'user', 'hrn': hrn, 'peer_authority': sfa_peer, \
 434                     #'pointer': person['person_id']}
 435                 #self.registry.register_peer_object(self.credential, peer_dict)
 436         for added_slice_user_hrn in added_slice_user_hrns.union(added_user_hrns):
 437             self.driver.AddPersonToSlice(added_slice_user_hrn, slice_record['name'])
 438         #for added_slice_user_id in added_slice_user_ids.union(added_user_ids):
 439             # add person to the slice
 440             #self.driver.AddPersonToSlice(added_slice_user_id, slice_record['name'])
 441             # if this is a peer record then it should already be bound to a peer.
 442             # no need to return worry about it getting bound later
 443
 444         return added_persons
 445
 446
 447     def verify_keys(self, persons, users, peer, options={}):
 448         # existing keys
 449         key_ids = []
 450         for person in persons:
 451             key_ids.extend(person['key_ids'])
 452         keylist = self.driver.GetKeys(key_ids, ['key_id', 'key'])
 453         keydict = {}
 454         for key in keylist:
 455             keydict[key['key']] = key['key_id']
 456         existing_keys = keydict.keys()
 457         persondict = {}
 458         for person in persons:
 459             persondict[person['email']] = person
 460
 461         # add new keys
 462         requested_keys = []
 463         updated_persons = []
 464         for user in users:
 465             user_keys = user.get('keys', [])
 466             updated_persons.append(user)
 467             for key_string in user_keys:
 468                 requested_keys.append(key_string)
 469                 if key_string not in existing_keys:
 470                     key = {'key': key_string, 'key_type': 'ssh'}
 471                     try:
 472                         if peer:
 473                             person = persondict[user['email']]
 474                             self.driver.UnBindObjectFromPeer('person', person['person_id'], peer['shortname'])
 475                         key['key_id'] = self.driver.AddPersonKey(user['email'], key)
 476                         if peer:
 477                             key_index = user_keys.index(key['key'])
 478                             remote_key_id = user['key_ids'][key_index]
 479                             self.driver.BindObjectToPeer('key', key['key_id'], peer['shortname'], remote_key_id)
 480
 481                     finally:
 482                         if peer:
 483                             self.driver.BindObjectToPeer('person', person['person_id'], peer['shortname'], user['person_id'])
 484
 485         # remove old keys (only if we are not appending)
 486         if append == False:
 487             removed_keys = set(existing_keys).difference(requested_keys)
 488             for existing_key_id in keydict:
 489                 if keydict[existing_key_id] in removed_keys:
 490                     try:
 491                         if peer:
 492                             self.driver.UnBindObjectFromPeer('key', existing_key_id, peer['shortname'])
 493                         self.driver.DeleteKey(existing_key_id)
 494                     except:
 495                         pass
 496
 497     #def verify_slice_attributes(self, slice, requested_slice_attributes, append=False, admin=False):
 498         ## get list of attributes users ar able to manage
 499         #filter = {'category': '*slice*'}
 500         #if not admin:
 501             #filter['|roles'] = ['user']
 502         #slice_attributes = self.driver.GetTagTypes(filter)
 503         #valid_slice_attribute_names = [attribute['tagname'] for attribute in slice_attributes]
 504
 505         ## get sliver attributes
 506         #added_slice_attributes = []
 507         #removed_slice_attributes = []
 508         #ignored_slice_attribute_names = []
 509         #existing_slice_attributes = self.driver.GetSliceTags({'slice_id': slice['slice_id']})
 510
 511         ## get attributes that should be removed
 512         #for slice_tag in existing_slice_attributes:
 513             #if slice_tag['tagname'] in ignored_slice_attribute_names:
 514                 ## If a slice already has a admin only role it was probably given to them by an
 515                 ## admin, so we should ignore it.
 516                 #ignored_slice_attribute_names.append(slice_tag['tagname'])
 517             #else:
 518                 ## If an existing slice attribute was not found in the request it should
 519                 ## be removed
 520                 #attribute_found=False
 521                 #for requested_attribute in requested_slice_attributes:
 522                     #if requested_attribute['name'] == slice_tag['tagname'] and \
 523                        #requested_attribute['value'] == slice_tag['value']:
 524                         #attribute_found=True
 525                         #break
 526
 527             #if not attribute_found and not append:
 528                 #removed_slice_attributes.append(slice_tag)
 529
 530         ## get attributes that should be added:
 531         #for requested_attribute in requested_slice_attributes:
 532             ## if the requested attribute wasn't found  we should add it
 533             #if requested_attribute['name'] in valid_slice_attribute_names:
 534                 #attribute_found = False
 535                 #for existing_attribute in existing_slice_attributes:
 536                     #if requested_attribute['name'] == existing_attribute['tagname'] and \
 537                        #requested_attribute['value'] == existing_attribute['value']:
 538                         #attribute_found=True
 539                         #break
 540                 #if not attribute_found:
 541                     #added_slice_attributes.append(requested_attribute)
 542
 543
 544         ## remove stale attributes
 545         #for attribute in removed_slice_attributes:
 546             #try:
 547                 #self.driver.DeleteSliceTag(attribute['slice_tag_id'])
 548             #except Exception, e:
 549                 #self.logger.warn('Failed to remove sliver attribute. name: %s, value: %s, node_id: %s\nCause:%s'\
 550                                 #% (name, value,  node_id, str(e)))
 551
 552         ## add requested_attributes
 553         #for attribute in added_slice_attributes:
 554             #try:
 555                 #self.driver.AddSliceTag(slice['name'], attribute['name'], attribute['value'], attribute.get('node_id', None))
 556             #except Exception, e:
 557                 #self.logger.warn('Failed to add sliver attribute. name: %s, value: %s, node_id: %s\nCause:%s'\
 558                                 #% (name, value,  node_id, str(e)))
 559
 560     #def create_slice_aggregate(self, xrn, rspec):
 561         #hrn, type = urn_to_hrn(xrn)
 562         ## Determine if this is a peer slice
 563         #peer = self.get_peer(hrn)
 564         #sfa_peer = self.get_sfa_peer(hrn)
 565
 566         #spec = RSpec(rspec)
 567         ## Get the slice record from sfa
 568         #slicename = hrn_to_pl_slicename(hrn)
 569         #slice = {}
 570         #slice_record = None
 571         #registry = self.api.registries[self.api.hrn]
 572         #credential = self.api.getCredential()
 573
 574         #site_id, remote_site_id = self.verify_site(registry, credential, hrn, peer, sfa_peer)
 575         #slice = self.verify_slice(registry, credential, hrn, site_id, remote_site_id, peer, sfa_peer)
 576
 577         ## find out where this slice is currently running
 578         #nodelist = self.driver.GetNodes(slice['node_ids'], ['hostname'])
 579         #hostnames = [node['hostname'] for node in nodelist]
 580
 581         ## get netspec details
 582         #nodespecs = spec.getDictsByTagName('NodeSpec')
 583
 584         ## dict in which to store slice attributes to set for the nodes
 585         #nodes = {}
 586         #for nodespec in nodespecs:
 587             #if isinstance(nodespec['name'], list):
 588                 #for nodename in nodespec['name']:
 589                     #nodes[nodename] = {}
 590                     #for k in nodespec.keys():
 591                         #rspec_attribute_value = nodespec[k]
 592                         #if (self.rspec_to_slice_tag.has_key(k)):
 593                             #slice_tag_name = self.rspec_to_slice_tag[k]
 594                             #nodes[nodename][slice_tag_name] = rspec_attribute_value
 595             #elif isinstance(nodespec['name'], StringTypes):
 596                 #nodename = nodespec['name']
 597                 #nodes[nodename] = {}
 598                 #for k in nodespec.keys():
 599                     #rspec_attribute_value = nodespec[k]
 600                     #if (self.rspec_to_slice_tag.has_key(k)):
 601                         #slice_tag_name = self.rspec_to_slice_tag[k]
 602                         #nodes[nodename][slice_tag_name] = rspec_attribute_value
 603
 604                 #for k in nodespec.keys():
 605                     #rspec_attribute_value = nodespec[k]
 606                     #if (self.rspec_to_slice_tag.has_key(k)):
 607                         #slice_tag_name = self.rspec_to_slice_tag[k]
 608                         #nodes[nodename][slice_tag_name] = rspec_attribute_value
 609
 610         #node_names = nodes.keys()
 611         ## remove nodes not in rspec
 612         #deleted_nodes = list(set(hostnames).difference(node_names))
 613         ## add nodes from rspec
 614         #added_nodes = list(set(node_names).difference(hostnames))
 615
 616         #try:
 617             #if peer:
 618                 #self.driver.UnBindObjectFromPeer('slice', slice['slice_id'], peer)
 619
 620             #self.driver.AddSliceToNodes(slicename, added_nodes)
 621
 622             ## Add recognized slice tags
 623             #for node_name in node_names:
 624                 #node = nodes[node_name]
 625                 #for slice_tag in node.keys():
 626                     #value = node[slice_tag]
 627                     #if (isinstance(value, list)):
 628                         #value = value[0]
 629
 630                     #self.driver.AddSliceTag(slicename, slice_tag, value, node_name)
 631
 632             #self.driver.DeleteSliceFromNodes(slicename, deleted_nodes)
 633         #finally:
 634             #if peer:
 635                 #self.driver.BindObjectToPeer('slice', slice['slice_id'], peer, slice['peer_slice_id'])
 636
 637         #return 1
 638