def networkOptions(self):
options = ObjectPreferences(True)
ens = hosts.ExternalNetwork.objects.filter(type=self.getNetworkType())
if self.getNetworkGroup():
ens = ens.filter(group=self.getNetworkGroup())
joins = 0
# filter statements must be limited because each one causes an
# additional table to be added to a join statement
# SQLite has an internal limit of 64 tables
for con in self.connectionSetAll():
dev = con.interface.device
if dev.host:
joins = joins + 1
ens = ens.filter(externalnetworkbridge__host=dev.host)
if joins > 10:
#break the loop here keeping the filtered set
break
if joins > 10:
#continue the filtering manually
enshosts = {}
for en in ens:
enshosts[en] = set()
for enb in en.externalnetworkbridge_set.all():
enshosts[en].add(enb.host)
for con in self.connectionSetAll():
dev = con.interface.device
if dev.host:
for en in enshosts.keys():
if not dev.host in enshosts[en]:
enshosts.remove(en)
ens = enshosts.keys()
for en in ens:
options.add(en, 1.0)
return options
def hostPreferences(self): prefs = ObjectPreferences(True) for h in hosts.getAll(self.hostgroup): if h.enabled: prefs.add(h, 1.0 - len(h.device_set.all())/100.0) #print "Host preferences for %s: %s" % (self, prefs) return prefs
def hostPreferences(self): prefs = ObjectPreferences() # keep it local for c in self.connectionSetAll(): dev = c.interface.device if dev.host: prefs.add(dev.host, -0.1) for h in hosts.getAll(dev.host.group): prefs.add(h, 0.01) #print "Host preferences for %s: %s" % (self, prefs) return prefs
def hostPreferences(self):
prefs = ObjectPreferences()
# keep it local
sites={}
for c in self.connectionSetAll():
dev = c.interface.device
if dev.host:
#discourage devices on the same host
prefs.add(dev.host, -0.05)
sites[dev.host.group] = sites.get(dev.host.group, 0.0) + 1.0
for site, num in sites.iteritems():
val = 0.05 * num/(num+10)
# value increases with hosts already at that site
# value is bounded by 0.01
for h in hosts.getAll(site):
prefs.add(h, val)
#print "Host preferences for %s: %s" % (self, prefs)
return prefs
