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']
19 class UpdateSlice(Method):
21 Updates the parameters of an existing slice with the values in
24 Users may only update slices of which they are members. PIs may
25 update any of the slices at their sites, or any slices of which
26 they are members. Admins may update any slice.
28 Only PIs and admins may update max_nodes. Slices cannot be renewed
29 (by updating the expires parameter) more than 8 weeks into the
32 Returns 1 if successful, faults otherwise.
35 roles = ['admin', 'pi', 'user']
37 accepted_fields = Row.accepted_fields(can_update, Slice.fields)
38 # xxx check the related_fields feature
39 accepted_fields.update(Slice.related_fields)
40 accepted_fields.update(Slice.tags)
44 Mixed(Slice.fields['slice_id'],
45 Slice.fields['name']),
49 returns = Parameter(int, '1 if successful')
51 def call(self, auth, slice_id_or_name, slice_fields):
53 # split provided fields
54 [native,related,tags,rejected] = Row.split_fields(slice_fields,[Slice.fields,Slice.related_fields,Slice.tags])
57 native = Row.check_fields (native, self.accepted_fields)
59 raise PLCInvalidArgument, "Cannot update Slice column(s) %r"%rejected
61 slices = Slices(self.api, [slice_id_or_name])
63 raise PLCInvalidArgument, "No such slice %r"%slice_id_or_name
66 if slice['peer_id'] is not None:
67 raise PLCInvalidArgument, "Not a local slice"
69 # Authenticated function
70 assert self.caller is not None
72 if 'admin' not in self.caller['roles']:
73 if self.caller['person_id'] in slice['person_ids']:
75 elif 'pi' not in self.caller['roles']:
76 raise PLCPermissionDenied, "Not a member of the specified slice"
77 elif slice['site_id'] not in self.caller['site_ids']:
78 raise PLCPermissionDenied, "Specified slice not associated with any of your sites"
82 if 'expires' in slice_fields and slice_fields['expires'] > slice['expires']:
83 sites = Sites(self.api, [slice['site_id']])
87 if site['max_slices'] <= 0:
88 raise PLCInvalidArgument, "Slice creation and renewal have been disabled for the site"
90 # Maximum expiration date is 8 weeks from now
91 # XXX Make this configurable
92 max_expires = time.time() + (8 * 7 * 24 * 60 * 60)
94 if 'admin' not in self.caller['roles'] and slice_fields['expires'] > max_expires:
95 raise PLCInvalidArgument, "Cannot renew a slice beyond 8 weeks from now"
97 # XXX Make this a configurable policy
98 if slice['description'] is None or not slice['description'].strip():
99 if 'description' not in slice_fields or slice_fields['description'] is None or \
100 not slice_fields['description'].strip():
101 raise PLCInvalidArgument, "Cannot renew a slice with an empty description or URL"
103 if slice['url'] is None or not slice['url'].strip():
104 if 'url' not in slice_fields or slice_fields['url'] is None or \
105 not slice_fields['url'].strip():
106 raise PLCInvalidArgument, "Cannot renew a slice with an empty description or URL"
109 if 'max_nodes' in slice_fields and slice_fields['max_nodes'] != slice['max_nodes']:
110 if 'admin' not in self.caller['roles'] and \
111 'pi' not in self.caller['roles']:
112 raise PLCInvalidArgument, "Only admins and PIs may update max_nodes"
114 # Make requested associations
115 for (k,v) in related.iteritems():
116 slice.associate(auth,k,v)
118 slice.update(slice_fields)
119 slice.sync(commit=True)
121 for (tagname,value) in tags.iteritems():
122 # the tagtype instance is assumed to exist, just check that
123 if not TagTypes(self.api,{'tagname':tagname}):
124 raise PLCInvalidArgument,"No such TagType %s"%tagname
125 slice_tags=SliceTags(self.api,{'tagname':tagname,'slice_id':slice['slice_id']})
127 AddSliceTag(self.api).__call__(auth,slice['slice_id'],tagname,value)
129 UpdateSliceTag(self.api).__call__(auth,slice_tags[0]['slice_tag_id'],value)
131 self.event_objects = {'Slice': [slice['slice_id']]}
133 self.message='Slice %s updated'%slice['name']
135 self.message='Slice %d updated'%slice['slice_id']
137 # it appears that slice['expires'] may be either an int, or a formatted string
139 expire_date=time.strftime('%Y-%m-%d:%H:%M',time.localtime(float(slice['expires'])))
141 expire_date=slice['expires']
142 self.message += ' renewed until %s'%expire_date