/
predefined.go
111 lines (97 loc) · 1.96 KB
/
predefined.go
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package main
const imports = `
import (
"fmt"
"net/http"
"runtime/debug"
)
`
const predefined = `
const (
ErrIDBaseError = "base-error"
ErrIDUnknownError = "unknown-error"
)
type Error interface {
error
Attributes() *ErrorAttributes
Hint() string
ChainErrMessage(msg string)
}
type ErrorAttributes struct {
ID string
Stack []byte
Msg string
HTTPCode int
OriginalError error
DefaultHint string
}
type BaseError struct {
ErrorAttributes
}
func (e *BaseError) Error() string {
return e.Msg
}
func (e *BaseError) Attributes() *ErrorAttributes {
return &e.ErrorAttributes
}
func (e *BaseError) ChainErrMessage(msg string) {
e.Msg = fmt.Sprintf("%s: %s", msg, e.Msg)
}
func (e *BaseError) Hint() string {
return e.DefaultHint
}
func ChainErrMessage(err error, msg string) error {
knownErr, ok := err.(Error)
if !ok {
msg := fmt.Sprintf("%s: %v", msg, err)
attrs := ErrorAttributes{
ID: ErrIDBaseError,
Stack: debug.Stack(),
Msg: msg,
HTTPCode: http.StatusInternalServerError,
OriginalError: err,
DefaultHint: http.StatusText(http.StatusInternalServerError),
}
baseErr := &BaseError{
ErrorAttributes: attrs,
}
return baseErr
}
knownErr.ChainErrMessage(msg)
return knownErr
}
type ErrorData struct {
Attrs *ErrorAttributes
Hint string
}
func PrepareErrorToSend(err error) *ErrorData {
knownErr, ok := err.(Error)
if !ok {
attrs := &ErrorAttributes{
ID: ErrIDUnknownError,
HTTPCode: http.StatusInternalServerError,
Msg: err.Error(),
}
errData := &ErrorData{
Attrs: attrs,
Hint: http.StatusText(attrs.HTTPCode),
}
return errData
}
errData := &ErrorData{
Attrs: knownErr.Attributes(),
Hint: knownErr.Hint(),
}
return errData
}
func newErrorMessage(msg string, err error) string {
if err != nil {
return fmt.Sprintf("%s: %v", msg, err)
}
return msg
}
func getStack() []byte {
stack := debug.Stack()
return stack
}
`