// Reload the network from a file
func Reload(arch string) {
listener = make(chan gotocol.Message) // listener for fsm
log.Println("fsm reloading from " + arch + ".json")
g := graphjson.ReadArch(arch)
pop := 0
// count how many nodes there are
for _, element := range g.Graph {
if element.Node != "" {
pop++
}
}
archaius.Conf.Population = pop
// create the map of channels
noodles = make(map[string]chan gotocol.Message, archaius.Conf.Population)
// Start all the services
for _, element := range g.Graph {
if element.Node != "" && element.Service != "" {
name := element.Node
noodles[name] = make(chan gotocol.Message)
// start the service and tell it it's name
switch element.Service {
case "pirate":
go pirate.Start(noodles[name])
noodles[name] <- gotocol.Message{gotocol.Hello, listener, time.Now(), gotocol.NilContext, name}
if edda.Logchan != nil {
// tell the pirate to report itself and new edges to the logger
noodles[name] <- gotocol.Message{gotocol.Inform, edda.Logchan, time.Now(), gotocol.NilContext, ""}
}
default:
log.Println("fsm: unknown service: " + element.Service)
}
}
}
// Make all the connections
for _, element := range g.Graph {
if element.Edge != "" && element.Source != "" && element.Target != "" {
noodles[element.Source] <- gotocol.Message{gotocol.NameDrop, noodles[element.Target], time.Now(), gotocol.NewTrace(), element.Target}
log.Println("Link " + element.Source + " > " + element.Target)
}
}
// send money and start the pirates chatting
for _, noodle := range noodles {
// same as below for now, but will save and read back from file later
// anonymously send this pirate a random amount of GoldCoin up to 100
gold := fmt.Sprintf("%d", rand.Intn(100))
noodle <- gotocol.Message{gotocol.GoldCoin, nil, time.Now(), gotocol.NewTrace(), gold}
// tell this pirate to start chatting with friends every 0.1 to 10 secs
delay := fmt.Sprintf("%dms", 100+rand.Intn(9900))
noodle <- gotocol.Message{gotocol.Chat, nil, time.Now(), gotocol.NilContext, delay}
}
shutdown()
}
// Reload the network from a file
func Reload(arch string) string {
root := ""
g := graphjson.ReadArch(arch)
archaius.Conf.Population = 0 // just to make sure
// count how many nodes there are
for _, element := range g.Graph {
if element.Node != "" {
archaius.Conf.Population++
}
}
CreateChannels()
CreateEureka()
// eureka and edda aren't recorded in the json file to simplify the graph
// Start all the services
cass := make(map[string]chan gotocol.Message) // for token distribution
for _, element := range g.Graph {
if element.Node != "" {
name := element.Node
StartNode(name, "")
if names.Package(name) == DenominatorPkg {
root = name
}
if names.Package(name) == "priamCassandra" {
cass[name] = noodles[name] // remember the nodes
}
}
}
if len(cass) > 0 { // currently doesn't handle multiple priamCassandra per arch
priamCassandra.Distribute(cass) // returns a string if it needs logging
}
// Make all the connections
for _, element := range g.Graph {
if element.Edge != "" && element.Source != "" && element.Target != "" {
Connect(element.Source, element.Target)
}
}
// run for a while
if root == "" {
log.Fatal("No denominator root microservice specified")
}
return root
}