func getServiceDesc(SID string) (reply string, err error) {
// Get description of requested service
service, isPresent := services[SID]
// Service not available
if !isPresent {
err = errors.New("NotAvailable")
reply = "NotAvailable"
return
}
// Get heartbeat of requested service
var heartbeat []string
heartbeat, err = msg.SendRequest(service, msg.PPP_HEARTBEAT, "")
heartbeat_state := time.Now().String()
if err != nil {
heartbeat_state = fmt.Sprintf("%s", err)
}
if len(heartbeat) < 1 || heartbeat[0] != msg.PPP_READY {
err = errors.New("Error:ServiceNotReady")
heartbeat_state = fmt.Sprintf("%s", err)
}
service.Heartbeat_state = heartbeat_state
services[SID] = service
// Service located
reply = string(encodeTOJSON(service))
return
}
func main() {
for request_nbr := 0; request_nbr != 10; request_nbr++ {
message := fmt.Sprintf("Hello %d", request_nbr)
reply, err := msg.SendRequest(services["hello"], "hello", message)
if err != nil {
log.Println("Whoops! ", err)
reply, err = msg.SendRequest(services["lookup"], "lookup", "hello")
if err != nil {
log.Println(err)
continue
}
for i := range reply {
registerService(reply[i], "hello")
}
continue
}
fmt.Println("\tSpliced Received: ", reply)
fmt.Println("\tOn to the next...")
}
}
// Initialize by setting address and registering service with directory service
func init() {
myservices["hello"] = doHelloWorld
myservices[msg.PPP_HEARTBEAT] = msg.ProcessHeartBeat
allowedbinders = "tcp://*:5560"
mydescription = msg.NewService("hello", "Hello Service", "tcp://localhost:5560", "hello", "REP")
// All I need to know are the details of the lookup service
services["lookup"] = msg.NewService("lookup", "LookUp Service", "tcp://localhost:5569", "lookup", "REP")
fmt.Println("Registering service...")
reply, err := msg.SendRequest(services["lookup"], "register", string(encodeTOJSON(mydescription)))
if err != nil {
log.Println(err)
}
fmt.Println("\t", reply)
}
// Init function requests for all services that the client will require
func init() {
servicesFileName = "dcservicelist.json"
servicesReq = append(servicesReq, "hello")
// All I need to know are the details of the lookup service
services["lookup"] = msg.NewService("lookup", "LookUp Service", "tcp://localhost:5569", "lookup", "REP")
// Get my service list
getServiceList()
// Get all services I require that are not listed in my service list
for _, serviceReq := range servicesReq {
if _, isListed := services[serviceReq]; isListed == false {
reply, err := msg.SendRequest(services["lookup"], "lookup", serviceReq)
if err != nil {
panic(err)
}
for i := range reply {
registerService(reply[i], serviceReq)
}
}
}
}
