from PLC.Table import Row, Table
from PLC.SliceInstantiations import SliceInstantiations
from PLC.Nodes import Node, Nodes
-from PLC.ForeignNodes import ForeignNode, ForeignNodes
import PLC.Persons
class Slice(Row):
fields = {
'slice_id': Parameter(int, "Slice identifier"),
'site_id': Parameter(int, "Identifier of the site to which this slice belongs"),
+ 'peer_id': Parameter(int, "Peer at which this slice was created", nullok = True),
'name': Parameter(str, "Slice name", max = 32),
'instantiation': Parameter(str, "Slice instantiation state"),
'url': Parameter(str, "URL further describing this slice", max = 254, nullok = True),
'person_ids': Parameter([int], "List of accounts that can use this slice", ro = True),
'slice_attribute_ids': Parameter([int], "List of slice attributes", ro = True),
}
+ # for Cache
+ class_key = 'name'
+ foreign_fields = ['instantiation', 'url', 'description',
+ 'max_nodes', 'created', 'expires']
+ foreign_xrefs = {
+ 'Node' : { 'field' : 'node_ids' , 'table': 'slice_node' },
+ 'Person' : { 'field': 'person_ids', 'table' : 'slice_person'},
+ }
def validate_name(self, name):
# N.B.: Responsibility of the caller to ensure that login_base
raise PLCInvalidArgument, "Invalid slice name"
conflicts = Slices(self.api, [name])
- for slice_id, slice in conflicts.iteritems():
- if 'slice_id' not in self or self['slice_id'] != slice_id:
- raise PLCInvalidArgument, "Slice name already in use"
+ for slice in conflicts:
+ if 'slice_id' not in self or self['slice_id'] != slice['slice_id']:
+ raise PLCInvalidArgument, "Slice name already in use, %s"%name
return name
def validate_instantiation(self, instantiation):
- instantiations = SliceInstantiations(self.api)
+ instantiations = [row['instantiation'] for row in SliceInstantiations(self.api)]
if instantiation not in instantiations:
raise PLCInvalidArgument, "No such instantiation state"
self['person_ids'].remove(person_id)
person['slice_ids'].remove(slice_id)
- def add_node(self, node, is_foreign_node = False, commit = True):
+ def add_node(self, node, commit = True):
"""
Add node to existing slice.
"""
assert 'slice_id' in self
- if not is_foreign_node:
- assert isinstance(node, Node)
- else:
- assert isinstance(node, ForeignNode)
+ assert isinstance(node, Node)
assert 'node_id' in node
slice_id = self['slice_id']
self['node_ids'].remove(node_id)
node['slice_ids'].remove(slice_id)
+ ##########
def sync(self, commit = True):
"""
Add or update a slice.
# Before a new slice is added, delete expired slices
if 'slice_id' not in self:
- expired = Slices(self.api, expires = -int(time.time())).values()
+ expired = Slices(self.api, expires = -int(time.time()))
for slice in expired:
slice.delete(commit)
database.
"""
- def __init__(self, api, slice_filter = None, expires = int(time.time())):
- Table.__init__(self, api, Slice)
+ def __init__(self, api, slice_filter = None, columns = None, expires = int(time.time())):
+ Table.__init__(self, api, Slice, columns)
sql = "SELECT %s FROM view_slices WHERE is_deleted IS False" % \
- ", ".join(Slice.fields)
+ ", ".join(self.columns)
if expires is not None:
if expires >= 0: