X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=PLC%2FSlices.py;h=af6062d6ceae7d8ce61a03c7f375e27e86e5506a;hb=bc15dc8096f4465bb8c3e9da2177b010828fe5b5;hp=56c98d9ee3ebdb4ee7aaae5a7fc68e3742e7a698;hpb=2696eec3582eb1b1092d0a98c863a040f6aa2af4;p=plcapi.git diff --git a/PLC/Slices.py b/PLC/Slices.py index 56c98d9..af6062d 100644 --- a/PLC/Slices.py +++ b/PLC/Slices.py @@ -7,9 +7,9 @@ from PLC.Parameter import Parameter from PLC.Filter import Filter from PLC.Debug import profile from PLC.Table import Row, Table -from PLC.SliceInstantiations import SliceInstantiations +from PLC.SliceInstantiations import SliceInstantiation, SliceInstantiations from PLC.Nodes import Node, Nodes -import PLC.Persons +from PLC.Persons import Person, Persons class Slice(Row): """ @@ -21,10 +21,10 @@ class Slice(Row): table_name = 'slices' primary_key = 'slice_id' + join_tables = ['slice_node', 'slice_person', 'slice_attribute', 'peer_slice'] 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), @@ -36,7 +36,21 @@ class Slice(Row): 'node_ids': Parameter([int], "List of nodes in this slice", ro = 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), + 'peer_id': Parameter(int, "Peer to which this slice belongs", nullok = True), + 'peer_slice_id': Parameter(int, "Foreign slice identifier at peer", nullok = True), } + # for Cache + class_key = 'name' + foreign_fields = ['instantiation', 'url', 'description', 'max_nodes', 'expires'] + foreign_xrefs = [ + {'field': 'node_ids' , 'class': 'Node', 'table': 'slice_node' }, + {'field': 'person_ids', 'class': 'Person', 'table': 'slice_person'}, + {'field': 'creator_person_id', 'class': 'Person', 'table': 'unused-on-direct-refs'}, + {'field': 'site_id', 'class': 'Site', 'table': 'unused-on-direct-refs'}, + ] + # forget about this one, it is read-only anyway + # handling it causes Cache to re-sync all over again + # 'created' def validate_name(self, name): # N.B.: Responsibility of the caller to ensure that login_base @@ -55,7 +69,7 @@ class Slice(Row): conflicts = Slices(self.api, [name]) for slice in conflicts: if 'slice_id' not in self or self['slice_id'] != slice['slice_id']: - raise PLCInvalidArgument, "Slice name already in use" + raise PLCInvalidArgument, "Slice name already in use, %s"%name return name @@ -66,147 +80,19 @@ class Slice(Row): return instantiation + validate_created = Row.validate_timestamp + def validate_expires(self, expires): # N.B.: Responsibility of the caller to ensure that expires is # not too far into the future. - if expires < time.time(): - raise PLCInvalidArgument, "Expiration date must be in the future" - - return time.strftime("%Y-%m-%d %H:%M:%S", time.gmtime(expires)) - - def add_person(self, person, commit = True): - """ - Add person to existing slice. - """ - - assert 'slice_id' in self - assert isinstance(person, PLC.Persons.Person) - assert 'person_id' in person - - slice_id = self['slice_id'] - person_id = person['person_id'] - - if person_id not in self['person_ids']: - assert slice_id not in person['slice_ids'] - - self.api.db.do("INSERT INTO slice_person (person_id, slice_id)" \ - " VALUES(%(person_id)d, %(slice_id)d)", - locals()) - - if commit: - self.api.db.commit() - - self['person_ids'].append(person_id) - person['slice_ids'].append(slice_id) - - def remove_person(self, person, commit = True): - """ - Remove person from existing slice. - """ - - assert 'slice_id' in self - assert isinstance(person, PLC.Persons.Person) - assert 'person_id' in person - - slice_id = self['slice_id'] - person_id = person['person_id'] - - if person_id in self['person_ids']: - assert slice_id in person['slice_ids'] - - self.api.db.do("DELETE FROM slice_person" \ - " WHERE person_id = %(person_id)d" \ - " AND slice_id = %(slice_id)d", - locals()) - - if commit: - self.api.db.commit() - - self['person_ids'].remove(person_id) - person['slice_ids'].remove(slice_id) - - def add_node(self, node, commit = True): - """ - Add node to existing slice. - """ - - assert 'slice_id' in self - assert isinstance(node, Node) - assert 'node_id' in node - - slice_id = self['slice_id'] - node_id = node['node_id'] - - if node_id not in self['node_ids']: - assert slice_id not in node['slice_ids'] - - self.api.db.do("INSERT INTO slice_node (node_id, slice_id)" \ - " VALUES(%(node_id)d, %(slice_id)d)", - locals()) - - if commit: - self.api.db.commit() - - self['node_ids'].append(node_id) - node['slice_ids'].append(slice_id) - - def remove_node(self, node, commit = True): - """ - Remove node from existing slice. - """ - - assert 'slice_id' in self - assert isinstance(node, Node) - assert 'node_id' in node - - slice_id = self['slice_id'] - node_id = node['node_id'] - - if node_id in self['node_ids']: - assert slice_id in node['slice_ids'] - - self.api.db.do("DELETE FROM slice_node" \ - " WHERE node_id = %(node_id)d" \ - " AND slice_id = %(slice_id)d", - locals()) - - if commit: - self.api.db.commit() - - self['node_ids'].remove(node_id) - node['slice_ids'].remove(slice_id) - - ########## for foreign slices update, from ForeignSlices - def purge_slice_node (self,commit=True): - sql = "DELETE FROM slice_node WHERE slice_id=%d"%self['slice_id'] - self.api.db.do(sql) - if commit: - self.api.db.commit() + return Row.validate_timestamp(self, expires, check_future = True) - def add_slice_nodes (self, node_ids, commit=True): - slice_id = self['slice_id'] - ### xxx needs to be optimized - ### tried to figure a way to use a single sql statement - ### like: insert into table (x,y) values (1,2),(3,4); - ### but apparently this is not supported under postgresql - for node_id in node_ids: - sql="INSERT INTO slice_node VALUES (%d,%d)"%(slice_id,node_id) - self.api.db.do(sql) - if commit: - self.api.db.commit() + add_person = Row.add_object(Person, 'slice_person') + remove_person = Row.remove_object(Person, 'slice_person') - def update_slice_nodes (self, node_ids): - # xxx to be optimized - # we could compute the (set) difference between - # current and updated set of node_ids - # and invoke the DB only based on that - # - # for now : clean all entries for this slice - self.purge_slice_node() - # and re-install new list - self.add_slice_nodes (node_ids) + add_node = Row.add_object(Node, 'slice_node') + remove_node = Row.remove_object(Node, 'slice_node') - ########## def sync(self, commit = True): """ Add or update a slice. @@ -228,10 +114,9 @@ class Slice(Row): assert 'slice_id' in self # Clean up miscellaneous join tables - for table in ['slice_node', 'slice_person', 'slice_attribute']: - self.api.db.do("DELETE FROM %s" \ - " WHERE slice_id = %d" % \ - (table, self['slice_id']), self) + for table in self.join_tables: + self.api.db.do("DELETE FROM %s WHERE slice_id = %d" % \ + (table, self['slice_id'])) # Mark as deleted self['is_deleted'] = True