// Loads the router table from one or more of the urls
func ConnectionsFromSeed(urls ...string) (*Connections, error) {
connections := &Connections{}
var rt *RouterTable
var err error
for _, url := range urls {
c := client.NewHttp(url)
rt, err = RequestRouterTable(c)
if err != nil {
break
}
}
if rt == nil {
return nil, fmt.Errorf("Unable to get a router table from urls %s ERROR(%s)", urls, err)
}
_, err = connections.SetRouterTable(rt)
return connections, err
}
// Creates a new manager. Uses the one or more seed urls to download the
// routing table.
func NewManagerSeed(partitioner Partitioner, serviceName, dataDir, myEntryId string, seedHttpUrls []string) (*Manager, error) {
//TODO: can we get the servicename from the routing table?
manager := NewManager(partitioner, serviceName, dataDir, myEntryId)
var err error
for _, url := range seedHttpUrls {
client := client.NewHttp(url)
tble, err := RequestRouterTable(client)
client.Close()
if err != nil {
//found a table.. woot
manager.SetRouterTable(tble)
return manager, nil
}
}
if manager.table != nil {
//uhh, I guess we sucessfully loaded it elsewhere
return manager, nil
}
//we still return the manager since it is usable just doesnt have a routing table.
return manager, err
}