func NewHandler(dir string) *Handler {
handler := &Handler{
Dir: dir,
requests: make(chan *request),
}
go func() {
for {
req := <-handler.requests
handler.p = NewProcfile(handler.Dir, portmanager)
handler.p.SetConcurrency("web=2")
handler.p.LaunchAll()
addrs := handler.p.AddrsFor("web")
if len(addrs) == 0 {
break
}
handlers := make([]http.Handler, 0, len(addrs))
for _, addr := range addrs {
<-Listening(addr)
handlers = append(handlers, proxy.New(addr))
}
loadBalancer := balancer.New(handlers...)
RequestLoop:
for {
go func(req *request) {
loadBalancer.ServeHTTP(req.W, req.R)
req.done <- true
}(req)
select {
case req = <-handler.requests:
// Continue Loop
case <-time.After(10 * time.Second):
fmt.Println("Exiting!!!")
handler.p.Kill()
break RequestLoop
}
}
}
}()
return handler
}
func load(path string, routes *router.Router) {
eachStatement(path, func(tokens []string) {
switch strings.ToUpper(tokens[0]) {
case "PROXY":
fmt.Println("prx...", tokens[1:])
if len(tokens) != 3 {
log.Fatal("Proxy requires 2 arguments: host and target")
}
routes.Add(tokens[1], proxy.New(tokens[2]))
case "PROCFILE":
fmt.Println("procfile...", tokens[1:])
routes.Add(tokens[1], procfile.NewHandler(tokens[2]))
case "ALIAS":
fmt.Println("ala...", tokens[1:])
routes.Alias(tokens[1], tokens[2])
}
})
}