// This function handles a panic in a json API action invocation.
// It cleans up the stack trace, logs it, and responds with an error json message.
func handleInvocationPanicJson(c *revel.Controller, err interface{}) {
// User Initiated panic with error response doesn't need to print the whole stack trace.
if errResponse, ok := err.(*JsonErrorResponder); ok {
c.Result = JsonErrorResult{errResponse}
} else if errResponse, ok := err.(JsonErrorResponder); ok {
c.Result = JsonErrorResult{&errResponse}
} else {
// System initiated panic. Use a JSON error response as we shouldn't
// be returning HTML for a JSON defined API.
error := revel.NewErrorFromPanic(err)
revel.ERROR.Print(err, "\n", error.Stack)
if error == nil {
revel.ERROR.Print(err, "\n", string(debug.Stack()))
} else {
revel.ERROR.Print(err, "\n", error.Stack)
}
var JsonErrorResponder = PanicResponseFactory(err)
c.Result = JsonErrorResult{&JsonErrorResponder}
}
}
func BusinessPanicFilter(c *revel.Controller, fc []revel.Filter) {
defer func() {
if x := recover(); x != nil {
if reflect.TypeOf(x).Name() == "BusinessError" {
err := x.(BusinessError)
c.Response.ContentType = "application/json; charset=utf-8"
c.Result = c.RenderJson(map[string]interface{}{
"success": false,
"code": err.Code,
"message": err.Error(),
})
} else {
if revel.Config.StringDefault("mode.dev", "true") != "true" {
log.Print(x, "\n", string(debug.Stack()))
}
panic(x)
}
}
}()
fc[0](c, fc[1:])
}
