func (this *Processor) Invoke(conn *Connection, cmd *Command) (result interface{}, err error) {
message := &Message{
Conn: conn,
Command: cmd,
Context: dynamic.Empty(),
}
defer func() {
this.After(message, result, err)
}()
defer func() {
if r := recover(); r != nil {
log.Println(r)
console.JSON(cmd)
log.Println(string(debug.Stack()))
var ok bool
if err, ok = r.(error); !ok {
err = Exception(fmt.Sprint(r))
}
}
}()
this.Before(message)
handlers := this.handlers[cmd.Action]
if handlers == nil {
return nil, Error("No handlers for " + cmd.Action)
}
for _, cb := range handlers {
result, err = cb(message)
if err != nil {
panic(err)
}
}
return result, nil
}
func (this *Connection) respond(key string, resp interface{}, err error) {
cmd := &Command{
Key: key,
}
if err == nil {
cmd.Action = RESPONSE
cmd.Body = resp
} else {
if _, ok := err.(*DRSError); ok {
cmd.Action = ERROR
cmd.Body = dynamic.Build(
"message", err.Error(),
)
} else {
console.JSON("EXCEPTION", err)
cmd.Action = EXCEPTION
cmd.Body = dynamic.Build(
"message", err.Error(),
)
}
}
this.Stream.Encode(cmd)
}