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.Auth import Auth
8 from PLC.Nodes import Node, Nodes
9 from PLC.NodeNetworks import NodeNetwork, NodeNetworks
10 from PLC.NodeGroups import NodeGroup, NodeGroups
11 from PLC.ConfFiles import ConfFile, ConfFiles
12 from PLC.Slices import Slice, Slices
13 #from PLC.ForeignSlices import ForeignSlice, ForeignSlices
14 from PLC.Persons import Person, Persons
15 from PLC.Keys import Key, Keys
16 from PLC.SliceAttributes import SliceAttribute, SliceAttributes
18 class GetSlivers(Method):
20 Returns an array of structs representing nodes and their slivers
21 (slices bound to nodes). If node_filter is specified, only
22 information about the specified nodes will be returned. If
23 node_filter is not specified and called by a node, only
24 information about the caller will be returned.
26 All of the information returned by this call can be gathered from
27 other calls, e.g. GetNodes, GetNodeNetworks, GetSlices, etc. This
28 function exists primarily for the benefit of Node Manager and
32 roles = ['admin', 'node']
36 Mixed([Mixed(Node.fields['node_id'],
37 Node.fields['hostname'])],
42 'timestamp': Parameter(int, "Timestamp of this call, in seconds since UNIX epoch"),
43 'node_id': Node.fields['node_id'],
44 'hostname': Node.fields['hostname'],
45 'networks': [NodeNetwork.fields],
46 'groups': [NodeGroup.fields['name']],
47 'conf_files': [ConfFile.fields],
49 'name': Slice.fields['name'],
50 'slice_id': Slice.fields['slice_id'],
51 'instantiation': Slice.fields['instantiation'],
52 'expires': Slice.fields['expires'],
54 'key_type': Key.fields['key_type'],
55 'key': Key.fields['key']
58 'name': SliceAttribute.fields['name'],
59 'value': SliceAttribute.fields['value']
65 object_type = 'Sliver'
67 def call(self, auth, node_filter = None):
68 timestamp = int(time.time())
70 if node_filter is None and isinstance(self.caller, Node):
71 all_nodes = {self.caller['node_id']: self.caller}
73 all_nodes = Nodes(self.api, node_filter).dict()
76 system_slice_attributes = SliceAttributes(self.api, {'name': 'system', 'value': '1'}).dict()
77 system_slice_ids = [slice_attribute['slice_id'] for slice_attribute in system_slice_attributes.values()]
78 system_slice_ids = dict.fromkeys(system_slice_ids)
80 all_nodenetwork_ids = set()
81 all_nodegroup_ids = set()
82 all_slice_ids = set(system_slice_ids.keys())
83 for node_id, node in all_nodes.iteritems():
84 all_nodenetwork_ids.update(node['nodenetwork_ids'])
85 all_nodegroup_ids.update(node['nodegroup_ids'])
86 all_slice_ids.update(node['slice_ids'])
88 # Get nodenetwork information
89 all_nodenetworks = NodeNetworks(self.api, all_nodenetwork_ids).dict()
91 # Get node group information
92 all_nodegroups = NodeGroups(self.api, all_nodegroup_ids).dict()
94 # Get (enabled) configuration files
95 all_conf_files = ConfFiles(self.api, {'enabled': True}).dict()
97 # Get slice information
98 all_slices = Slices(self.api, all_slice_ids).dict()
101 slice_attribute_ids = set()
102 for slice_id, slice in all_slices.iteritems():
103 ### still missing in foreign slices
104 if slice.get('person_ids'):
105 person_ids.update(slice['person_ids'])
106 ### still missing in foreign slices
107 if slice.get('slice_attribute_ids'):
108 slice_attribute_ids.update(slice['slice_attribute_ids'])
110 # Get user information
111 all_persons = Persons(self.api, person_ids).dict()
114 for person_id, person in all_persons.iteritems():
115 key_ids.update(person['key_ids'])
117 # Get user account keys
118 all_keys = Keys(self.api, key_ids).dict()
120 # Get slice attributes
121 all_slice_attributes = SliceAttributes(self.api, slice_attribute_ids).dict()
124 for node_id, node in all_nodes.iteritems():
125 networks = [all_nodenetworks[nodenetwork_id] for nodenetwork_id in node['nodenetwork_ids']]
126 nodegroups = [all_nodegroups[nodegroup_id] for nodegroup_id in node['nodegroup_ids']]
127 groups = [nodegroup['name'] for nodegroup in nodegroups]
129 # If multiple entries for the same global configuration
130 # file exist, it is undefined which one takes precedence.
132 for conf_file in all_conf_files.values():
133 if not conf_file['node_ids'] and not conf_file['nodegroup_ids']:
134 conf_files[conf_file['dest']] = conf_file
136 # If a node belongs to multiple node
137 # groups for which the same configuration file is defined,
138 # it is undefined which one takes precedence.
139 for nodegroup in nodegroups:
140 for conf_file_id in nodegroup['conf_file_ids']:
141 if conf_file_id in all_conf_files:
142 conf_files[conf_file['dest']] = all_conf_files[conf_file_id]
144 # Node configuration files always take precedence over
145 # node group configuration files.
146 for conf_file_id in node['conf_file_ids']:
147 if conf_file_id in all_conf_files:
148 conf_files[conf_file['dest']] = all_conf_files[conf_file_id]
150 # filter out any slices in this nodes slice_id list that may be invalid
151 # (i.e. expired slices)
152 slice_ids = dict.fromkeys(filter(lambda slice_id: slice_id in all_slice_ids, node['slice_ids']))
154 # If not a foreign node, add all of our default system
156 if node['peer_id'] is None:
157 slice_ids.update(system_slice_ids)
161 for slice in map(lambda id: all_slices[id], slice_ids.keys()):
163 ### still missing in foreign slices
165 for person in map(lambda id: all_persons[id], slice['person_ids']):
166 keys += [{'key_type': all_keys[key_id]['key_type'],
167 'key': all_keys[key_id]['key']} \
168 for key_id in person['key_ids']]
170 keys += [{'key_type':'missing',
171 'key':'key caching not implemented yet'}]
173 sliver_attributes = []
175 ### still missing in foreign slices
177 slice_attributes = map(lambda id: all_slice_attributes[id],
178 slice['slice_attribute_ids'])
180 # Per-node sliver attributes take precedence over
181 # global slice attributes, so set them first.
182 for sliver_attribute in filter(lambda a: a['node_id'] == node_id, slice_attributes):
183 sliver_attributes.append(sliver_attribute['name'])
184 attributes.append({'name': sliver_attribute['name'],
185 'value': sliver_attribute['value']})
187 for slice_attribute in filter(lambda a: a['node_id'] is None, slice_attributes):
188 # Do not set any global slice attributes for
189 # which there is at least one sliver attribute
191 if slice_attribute['name'] not in sliver_attributes:
192 attributes.append({'name': slice_attribute['name'],
193 'value': slice_attribute['value']})
194 except Exception, err:
195 attributes=[{'name':'attributes caching','value':'not implemented yet'}]
198 'name': slice['name'],
199 'slice_id': slice['slice_id'],
200 'instantiation': slice['instantiation'],
201 'expires': slice['expires'],
203 'attributes': attributes
207 'timestamp': timestamp,
208 'node_id': node['node_id'],
209 'hostname': node['hostname'],
210 'networks': networks,
212 'conf_files': conf_files.values(),