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package retry
import (
"context"
"time"
"github.com/aws/aws-sdk-go-v2/aws"
)
// AddWithErrorCodes returns a Retryer with additional error codes considered
// for determining if the error should be retried.
func AddWithErrorCodes(r aws.Retryer, codes ...string) aws.Retryer {
retryable := &RetryableErrorCode{
Codes: map[string]struct{}{},
}
for _, c := range codes {
retryable.Codes[c] = struct{}{}
}
return &withIsErrorRetryable{
RetryerV2: wrapAsRetryerV2(r),
Retryable: retryable,
}
}
type withIsErrorRetryable struct {
aws.RetryerV2
Retryable IsErrorRetryable
}
func (r *withIsErrorRetryable) IsErrorRetryable(err error) bool {
if v := r.Retryable.IsErrorRetryable(err); v != aws.UnknownTernary {
return v.Bool()
}
return r.RetryerV2.IsErrorRetryable(err)
}
// AddWithMaxAttempts returns a Retryer with MaxAttempts set to the value
// specified.
func AddWithMaxAttempts(r aws.Retryer, max int) aws.Retryer {
return &withMaxAttempts{
RetryerV2: wrapAsRetryerV2(r),
Max: max,
}
}
type withMaxAttempts struct {
aws.RetryerV2
Max int
}
func (w *withMaxAttempts) MaxAttempts() int {
return w.Max
}
// AddWithMaxBackoffDelay returns a retryer wrapping the passed in retryer
// overriding the RetryDelay behavior for a alternate minimum initial backoff
// delay.
func AddWithMaxBackoffDelay(r aws.Retryer, delay time.Duration) aws.Retryer {
return &withMaxBackoffDelay{
RetryerV2: wrapAsRetryerV2(r),
backoff: NewExponentialJitterBackoff(delay),
}
}
type withMaxBackoffDelay struct {
aws.RetryerV2
backoff *ExponentialJitterBackoff
}
func (r *withMaxBackoffDelay) RetryDelay(attempt int, err error) (time.Duration, error) {
return r.backoff.BackoffDelay(attempt, err)
}
type wrappedAsRetryerV2 struct {
aws.Retryer
}
func wrapAsRetryerV2(r aws.Retryer) aws.RetryerV2 {
v, ok := r.(aws.RetryerV2)
if !ok {
v = wrappedAsRetryerV2{Retryer: r}
}
return v
}
func (w wrappedAsRetryerV2) GetAttemptToken(context.Context) (func(error) error, error) {
return w.Retryer.GetInitialToken(), nil
}
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