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errors: add IsRetrayable func #273

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vtolstov merged 2 commits from errors into v3 2023-10-25 10:24:59 +03:00
Conversation 0 Commits 2 Files Changed 2 +110 -69
2 changed files with 110 additions and 69 deletions
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172
errors/errors.go
View File

@ -356,6 +356,106 @@ func Retryable(err error) error {
return &retryableError{err: err}
}
type IsRetryableFunc func(error) bool
var (
RetrayableOracleErrors = []IsRetryableFunc{
func(err error) bool {
errmsg := err.Error()
switch {
case strings.Contains(errmsg, `ORA-`):
return true
case strings.Contains(errmsg, `can not assign`):
return true
case strings.Contains(errmsg, `can't assign`):
return true
}
return false
},
}
RetrayablePostgresErrors = []IsRetryableFunc{
func(err error) bool {
errmsg := err.Error()
switch {
case strings.Contains(errmsg, `number of field descriptions must equal number of`):
return true
case strings.Contains(errmsg, `not a pointer`):
return true
case strings.Contains(errmsg, `values, but dst struct has only`):
return true
case strings.Contains(errmsg, `struct doesn't have corresponding row field`):
return true
case strings.Contains(errmsg, `cannot find field`):
return true
case strings.Contains(errmsg, `cannot scan`) || strings.Contains(errmsg, `cannot convert`):
return true
case strings.Contains(errmsg, `failed to connect to`):
return true
}
return false
},
}
RetryableMicroErrors = []IsRetryableFunc{
func(err error) bool {
switch verr := err.(type) {
case *Error:
switch verr.Code {
case 401, 403, 408, 500, 501, 502, 503, 504:
return true
default:
return false
}
case *retryableError:
return true
}
return false
},
}
RetryableGoErrors = []IsRetryableFunc{
func(err error) bool {
switch verr := err.(type) {
case interface{ SafeToRetry() bool }:
return verr.SafeToRetry()
case interface{ Timeout() bool }:
return verr.Timeout()
}
switch {
case errors.Is(err, io.EOF), errors.Is(err, io.ErrUnexpectedEOF):
return true
case errors.Is(err, context.DeadlineExceeded):
return true
case errors.Is(err, io.ErrClosedPipe), errors.Is(err, io.ErrShortBuffer), errors.Is(err, io.ErrShortWrite):
return true
}
return false
},
}
RetryableGrpcErrors = []IsRetryableFunc{
func(err error) bool {
st, ok := status.FromError(err)
if !ok {
return false
}
switch st.Code() {
case codes.Unavailable, codes.ResourceExhausted:
return true
case codes.DeadlineExceeded:
return true
case codes.Internal:
switch {
case strings.Contains(st.Message(), `transport: received the unexpected content-type "text/html; charset=UTF-8"`):
return true
case strings.Contains(st.Message(), io.ErrUnexpectedEOF.Error()):
return true
case strings.Contains(st.Message(), `stream terminated by RST_STREAM with error code: INTERNAL_ERROR`):
return true
}
}
return false
},
}
)
// Unwrap provides error wrapping
func (e *retryableError) Unwrap() error {
return e.err
@ -370,77 +470,11 @@ func (e *retryableError) Error() string {
}
// IsRetryable checks error for ability to retry later
func IsRetryable(err error) bool {
switch verr := err.(type) {
case *Error:
switch verr.Code {
case 401, 403, 408, 500, 501, 502, 503, 504:
func IsRetryable(err error, fns ...IsRetryableFunc) bool {
for _, fn := range fns {
if ok := fn(err); ok {
return true
default:
return false
}
case *retryableError:
return true
case interface{ SafeToRetry() bool }:
return verr.SafeToRetry()
case interface{ Timeout() bool }:
return verr.Timeout()
}
switch {
case errors.Is(err, io.EOF), errors.Is(err, io.ErrUnexpectedEOF):
return true
case errors.Is(err, context.DeadlineExceeded):
return true
case errors.Is(err, io.ErrClosedPipe), errors.Is(err, io.ErrShortBuffer), errors.Is(err, io.ErrShortWrite):
return true
default:
st, ok := status.FromError(err)
if !ok {
errmsg := err.Error()
if strings.Contains(errmsg, `number of field descriptions must equal number of`) {
return true
}
if strings.Contains(errmsg, `not a pointer`) {
return true
}
if strings.Contains(errmsg, `values, but dst struct has only`) {
return true
}
if strings.Contains(errmsg, `struct doesn't have corresponding row field`) {
return true
}
if strings.Contains(errmsg, `cannot find field`) {
return true
}
if strings.Contains(errmsg, `cannot scan`) || strings.Contains(errmsg, `cannot convert`) {
return true
}
if strings.Contains(errmsg, `failed to connect to`) {
return true
}
return false
}
switch st.Code() {
case codes.Unavailable, codes.ResourceExhausted:
return true
case codes.DeadlineExceeded:
return true
case codes.Internal:
if strings.Contains(st.Message(), `transport: received the unexpected content-type "text/html; charset=UTF-8"`) {
return true
}
if strings.Contains(st.Message(), io.ErrUnexpectedEOF.Error()) {
return true
}
if strings.Contains(st.Message(), `stream terminated by RST_STREAM with error code: INTERNAL_ERROR`) {
return true
}
default:
return false
}
}
return false
}

7
errors/errors_test.go
View File

@ -8,6 +8,13 @@ import (
"testing"
)
func TestIsRetrayable(t *testing.T) {
err := fmt.Errorf("ORA-")
if !IsRetryable(err, RetrayableOracleErrors...) {
t.Fatalf("IsRetrayable not works")
}
}
func TestMarshalJSON(t *testing.T) {
e := InternalServerError("id", "err: %v", fmt.Errorf("err: %v", `xxx: "UNIX_TIMESTAMP": invalid identifier`))
_, err := json.Marshal(e)