# Thierry Parmentelat - INRIA
#
-import xmlrpclib
-
from PLC.Faults import *
from PLC.Method import Method
from PLC.Parameter import Parameter, Mixed
from PLC.Peers import Peer, Peers
from PLC.Persons import Person, Persons
-from PLC.ForeignNodes import ForeignNode, ForeignNodes
+from PLC.Cache import Cache
class RefreshPeer(Method):
"""
- Query a peer PLC for its list of nodes, and refreshes
- the local database accordingly
-
- Returns None
+ First queries a remote PLC for its name and updates the local peers table
+
+ Then proceeds with fetching objects on the remote PLC, and updates the
+ local database accordingly
+
+ It requires the remote peer to be aware of our own name (as configured in PLC_NAME)
+
+ Returns a dict containing
+ (*) 'peername' : the peer's name
+ (*) 'new_xxx': the number of new objects from that peer - may be negative
+ (*) 'timers': various stats on performance for optimization
+
"""
roles = ['admin']
accepts = [ Auth(),
- Parameter (int, "Peer id") ]
+ Mixed(Peer.fields['peer_id'],
+ Peer.fields['peername']),
+ ]
- returns = None
+ returns = {
+ 'new_sites': Parameter([dict], "List of new sites"),
+ 'new_keys': Parameter([dict], "List of new keys"),
+ 'new_nodes': Parameter([dict], "List of new nodes"),
+ 'new_persons': Parameter([dict], "List of new users"),
+ 'new_slice_attribute_types': Parameter([dict], "List of new slice attribute types"),
+ 'new_slices': Parameter([dict], "List of new slices"),
+ 'new_slice_attributes': Parameter([dict], "List of new slice attributes"),
+ 'timers': Parameter(dict, "(Debug) Timing information"),
+ }
- def call (self, auth, peer_id):
-
- ### retrieve peer info
- peers = Peers (self.api)
- peer = peers[peer_id]
-
- ### retrieve account info
- person_id = peer['person_id']
- persons = Persons (self.api,[person_id])
- person = persons[person_id]
-
- ### build up foreign auth
- auth={ 'Username': person['email'],
- 'AuthMethod' : 'password',
- 'AuthString' : person['password'],
- 'Role' : 'admin' }
+ def call (self, auth, peer_id_or_peername):
+ peers = Peers(self.api, [peer_id_or_peername])
+ if not peers:
+ raise PLCInvalidArgument, "No such peer '%s'" % unicode(peer_id_or_peername)
+ peer = peers[0]
- ## connect to the peer's API
- apiserver = xmlrpclib.Server (peer['peer_url']+"/PLCAPI/")
- print 'auth',auth
- current_peer_nodes = apiserver.GetNodes(auth,[])
-
- ## manual feed for tests
-# n1 = {'hostname': 'n1.plc', 'boot_state': 'inst'}
-# n2 = {'hostname': 'n2.plc', 'boot_state': 'inst'}
-# n3 = {'hostname': 'n3.plc', 'boot_state': 'inst'}
- n11={'session': None, 'slice_ids': [], 'nodegroup_ids': [], 'last_updated': 1162884349, 'version': None, 'nodenetwork_ids': [], 'boot_state': 'inst', 'hostname': 'n11.plc1.org', 'site_id': 1, 'ports': None, 'pcu_ids': [], 'boot_nonce': None, 'node_id': 1, 'root_person_ids': [], 'key': None, 'date_created': 1162884349, 'model': None, 'conf_file_ids': [], 'ssh_rsa_key': None}
- n12={'session': None, 'slice_ids': [], 'nodegroup_ids': [], 'last_updated': 1162884349, 'version': None, 'nodenetwork_ids': [], 'boot_state': 'inst', 'hostname': 'n12.plc1.org', 'site_id': 1, 'ports': None, 'pcu_ids': [], 'boot_nonce': None, 'node_id': 1, 'root_person_ids': [], 'key': None, 'date_created': 1162884349, 'model': None, 'conf_file_ids': [], 'ssh_rsa_key': None}
- n21={'session': None, 'slice_ids': [], 'nodegroup_ids': [], 'last_updated': 1162884349, 'version': None, 'nodenetwork_ids': [], 'boot_state': 'boot', 'hostname': 'n21.plc2.org', 'site_id': 1, 'ports': None, 'pcu_ids': [], 'boot_nonce': None, 'node_id': 1, 'root_person_ids': [], 'key': None, 'date_created': 1162884349, 'model': None, 'conf_file_ids': [], 'ssh_rsa_key': None}
- n22={'session': None, 'slice_ids': [], 'nodegroup_ids': [], 'last_updated': 1162884349, 'version': None, 'nodenetwork_ids': [], 'boot_state': 'boot', 'hostname': 'n22.plc2.org', 'site_id': 1, 'ports': None, 'pcu_ids': [], 'boot_nonce': None, 'node_id': 1, 'root_person_ids': [], 'key': None, 'date_created': 1162884349, 'model': None, 'conf_file_ids': [], 'ssh_rsa_key': None}
+ # Connect to peer API
+ peer.connect()
-# current_peer_nodes = [n21,n22]
+ # Update peer name
+ peername = peer.GetPeerName()
+ if peer['peername'] != peername:
+ peer['peername'] = peername
+ peer.sync()
- ### now to the db
- # we get the whole table just in case
- # a host would have switched from one plc to the other
- foreign_nodes = ForeignNodes (self.api)
-
- ### mark entries for this peer outofdate
- for foreign_node in foreign_nodes.values():
- if foreign_node['peer_id'] == peer_id:
- foreign_node.uptodate=False
+ cache = Cache(self.api, peer['peer_id'], peer)
+ result = cache.refresh_peer()
- ### these fields get copied through
- remote_fields = ['boot_state','model','version','date_created','date_updated']
-
- ### scan the new entries, and mark them uptodate
- for node in current_peer_nodes:
- hostname = node['hostname']
- foreign_node = foreign_nodes.get(hostname)
- if foreign_node:
- ### update it anyway
- foreign_node['cached'] = True
- foreign_node['peer_id'] = peer_id
- # copy other relevant fields
- for field in remote_fields:
- foreign_node[field]=node[field]
- # this row is valid
- foreign_node.uptodate = True
- else:
- foreign_nodes[hostname] = ForeignNode(self.api,
- {'hostname':hostname,
- 'cached':True,
- 'peer_id':peer_id,})
- for field in remote_fields:
- foreign_nodes[hostname][field]=node[field]
-
- foreign_nodes[hostname].sync()
+ # Add peer name to result set
+ result['peername'] = peername
- ### delete entries that are not uptodate
- [ x.delete() for x in foreign_nodes.values() if not x.uptodate ]
-
+ return result
git://git.onelab.eu / plcapi.git / blobdiff