4 from PLC.Faults import *
5 from PLC.Method import Method
6 from PLC.Parameter import Parameter, Mixed
7 from PLC.Table import Row
8 from PLC.Auth import Auth
10 from PLC.Slices import Slice, Slices
11 from PLC.Sites import Site, Sites
12 from PLC.TagTypes import TagTypes
13 from PLC.SliceTags import SliceTags
14 from PLC.Methods.AddSliceTag import AddSliceTag
15 from PLC.Methods.UpdateSliceTag import UpdateSliceTag
17 can_update = ['instantiation', 'url', 'description', 'max_nodes', 'expires'] + \
18 Slice.related_fields.keys()
20 class UpdateSlice(Method):
22 Updates the parameters of an existing slice with the values in
25 Users may only update slices of which they are members. PIs may
26 update any of the slices at their sites, or any slices of which
27 they are members. Admins may update any slice.
29 Only PIs and admins may update max_nodes. Slices cannot be renewed
30 (by updating the expires parameter) more than 8 weeks into the
33 Returns 1 if successful, faults otherwise.
36 roles = ['admin', 'pi', 'user']
38 accepted_fields = Row.accepted_fields(can_update, [Slice.fields,Slice.related_fields,Slice.tags])
42 Mixed(Slice.fields['slice_id'],
43 Slice.fields['name']),
47 returns = Parameter(int, '1 if successful')
49 def call(self, auth, slice_id_or_name, slice_fields):
51 slice_fields = Row.check_fields (slice_fields, self.accepted_fields)
53 # split provided fields
54 [native,related,tags,rejected] = Row.split_fields(slice_fields,[Slice.fields,Slice.related_fields,Slice.tags])
57 raise PLCInvalidArgument, "Cannot update Slice column(s) %r"%rejected
59 slices = Slices(self.api, [slice_id_or_name])
61 raise PLCInvalidArgument, "No such slice %r"%slice_id_or_name
64 if slice['peer_id'] is not None:
65 raise PLCInvalidArgument, "Not a local slice"
67 # Authenticated function
68 assert self.caller is not None
70 if 'admin' not in self.caller['roles']:
71 if self.caller['person_id'] in slice['person_ids']:
73 elif 'pi' not in self.caller['roles']:
74 raise PLCPermissionDenied, "Not a member of the specified slice"
75 elif slice['site_id'] not in self.caller['site_ids']:
76 raise PLCPermissionDenied, "Specified slice not associated with any of your sites"
80 if 'expires' in slice_fields and slice_fields['expires'] > slice['expires']:
81 sites = Sites(self.api, [slice['site_id']])
85 if site['max_slices'] <= 0:
86 raise PLCInvalidArgument, "Slice creation and renewal have been disabled for the site"
88 # Maximum expiration date is 8 weeks from now
89 # XXX Make this configurable
90 max_expires = time.time() + (8 * 7 * 24 * 60 * 60)
92 if 'admin' not in self.caller['roles'] and slice_fields['expires'] > max_expires:
93 raise PLCInvalidArgument, "Cannot renew a slice beyond 8 weeks from now"
95 # XXX Make this a configurable policy
96 if slice['description'] is None or not slice['description'].strip():
97 if 'description' not in slice_fields or slice_fields['description'] is None or \
98 not slice_fields['description'].strip():
99 raise PLCInvalidArgument, "Cannot renew a slice with an empty description or URL"
101 if slice['url'] is None or not slice['url'].strip():
102 if 'url' not in slice_fields or slice_fields['url'] is None or \
103 not slice_fields['url'].strip():
104 raise PLCInvalidArgument, "Cannot renew a slice with an empty description or URL"
107 if 'max_nodes' in slice_fields and slice_fields['max_nodes'] != slice['max_nodes']:
108 if 'admin' not in self.caller['roles'] and \
109 'pi' not in self.caller['roles']:
110 raise PLCInvalidArgument, "Only admins and PIs may update max_nodes"
112 # Make requested associations
113 for (k,v) in related.iteritems():
114 slice.associate(auth,k,v)
116 slice.update(slice_fields)
117 slice.sync(commit=True)
119 for (tagname,value) in tags.iteritems():
120 # the tagtype instance is assumed to exist, just check that
121 if not TagTypes(self.api,{'tagname':tagname}):
122 raise PLCInvalidArgument,"No such TagType %s"%tagname
123 slice_tags=SliceTags(self.api,{'tagname':tagname,'slice_id':slice['slice_id']})
125 AddSliceTag(self.api).__call__(auth,slice['slice_id'],tagname,value)
127 UpdateSliceTag(self.api).__call__(auth,slice_tags[0]['slice_tag_id'],value)
129 self.event_objects = {'Slice': [slice['slice_id']]}
131 self.message='Slice %s updated'%slice['name']
133 self.message='Slice %d updated'%slice['slice_id']
135 # it appears that slice['expires'] may be either an int, or a formatted string
137 expire_date=time.strftime('%Y-%m-%d:%H:%M',time.localtime(float(slice['expires'])))
139 expire_date=slice['expires']
140 self.message += ' renewed until %s'%expire_date