micro/server/server.go
2015-08-26 12:15:37 +01:00

104 lines
1.9 KiB
Go

package server
import (
"os"
"os/signal"
"syscall"
log "github.com/golang/glog"
"github.com/pborman/uuid"
)
type Server interface {
Config() options
Init(...Option)
Handle(Handler) error
NewHandler(interface{}) Handler
NewSubscriber(string, interface{}) Subscriber
Subscribe(Subscriber) error
Register() error
Deregister() error
Start() error
Stop() error
}
type Option func(*options)
var (
DefaultAddress = ":0"
DefaultName = "go-server"
DefaultVersion = "1.0.0"
DefaultId = uuid.NewUUID().String()
DefaultServer Server = newRpcServer()
)
func Config() options {
return DefaultServer.Config()
}
func Init(opt ...Option) {
if DefaultServer == nil {
DefaultServer = newRpcServer(opt...)
}
DefaultServer.Init(opt...)
}
func NewServer(opt ...Option) Server {
return newRpcServer(opt...)
}
func NewSubscriber(topic string, h interface{}) Subscriber {
return DefaultServer.NewSubscriber(topic, h)
}
func NewHandler(h interface{}) Handler {
return DefaultServer.NewHandler(h)
}
func Handle(h Handler) error {
return DefaultServer.Handle(h)
}
func Subscribe(s Subscriber) error {
return DefaultServer.Subscribe(s)
}
func Register() error {
return DefaultServer.Register()
}
func Deregister() error {
return DefaultServer.Deregister()
}
func Run() error {
if err := Start(); err != nil {
return err
}
if err := DefaultServer.Register(); err != nil {
return err
}
ch := make(chan os.Signal, 1)
signal.Notify(ch, syscall.SIGTERM, syscall.SIGINT, syscall.SIGKILL)
log.Infof("Received signal %s", <-ch)
if err := DefaultServer.Deregister(); err != nil {
return err
}
return Stop()
}
func Start() error {
config := DefaultServer.Config()
log.Infof("Starting server %s id %s", config.Name(), config.Id())
return DefaultServer.Start()
}
func Stop() error {
log.Infof("Stopping server")
return DefaultServer.Stop()
}