3 from PLC.Faults import *
4 from PLC.Method import Method
5 from PLC.Parameter import Parameter, Mixed
6 from PLC.Filter import Filter
7 from PLC.SliceTags import SliceTag, SliceTags
8 from PLC.Persons import Person, Persons
9 from PLC.Sites import Site, Sites
10 from PLC.Slices import Slice, Slices
11 from PLC.Auth import Auth
13 class GetSliceTags(Method):
15 Returns an array of structs containing details about slice and
16 sliver attributes. An attribute is a sliver attribute if the
17 node_id field is set. If slice_tag_filter is specified and
18 is an array of slice attribute identifiers, or a struct of slice
19 attribute attributes, only slice attributes matching the filter
20 will be returned. If return_fields is specified, only the
21 specified details will be returned.
23 Users may only query attributes of slices or slivers of which they
24 are members. PIs may only query attributes of slices or slivers at
25 their sites, or of which they are members. Admins may query
26 attributes of any slice or sliver.
29 roles = ['admin', 'pi', 'user', 'node']
33 Mixed([SliceTag.fields['slice_tag_id']],
34 Filter(SliceTag.fields)),
35 Parameter([str], "List of fields to return", nullok = True)
38 returns = [SliceTag.fields]
41 def call(self, auth, slice_tag_filter = None, return_fields = None):
42 # If we are not admin, make sure to only return our own slice
43 # and sliver attributes.
44 if isinstance(self.caller, Person) and \
45 'admin' not in self.caller['roles']:
46 # Get slices that we are able to view
47 valid_slice_ids = self.caller['slice_ids']
48 if 'pi' in self.caller['roles'] and self.caller['site_ids']:
49 sites = Sites(self.api, self.caller['site_ids'])
51 valid_slice_ids += site['slice_ids']
53 if not valid_slice_ids:
56 # Get slice attributes that we are able to view
57 valid_slice_tag_ids = []
58 slices = Slices(self.api, valid_slice_ids)
60 valid_slice_tag_ids += slice['slice_tag_ids']
62 if not valid_slice_tag_ids:
65 if slice_tag_filter is None:
66 slice_tag_filter = valid_slice_tag_ids
68 # Must query at least slice_tag_id (see below)
69 if return_fields is not None and 'slice_tag_id' not in return_fields:
70 return_fields.append('slice_tag_id')
75 slice_tags = SliceTags(self.api, slice_tag_filter, return_fields)
77 # Filter out slice attributes that are not viewable
78 if isinstance(self.caller, Person) and \
79 'admin' not in self.caller['roles']:
80 slice_tags = filter(lambda slice_tag: \
81 slice_tag['slice_tag_id'] in valid_slice_tag_ids,
84 # Remove slice_tag_id if not specified
86 for slice_tag in slice_tags:
87 if 'slice_tag_id' in slice_tag:
88 del slice_tag['slice_tag_id']