83 lines
2.0 KiB
Go
83 lines
2.0 KiB
Go
/*
|
|
Copyright 2021 The Dapr Authors
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package state
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
)
|
|
|
|
type ETagErrorKind string
|
|
|
|
const (
|
|
mismatchPrefix = "possible etag mismatch. error from state store"
|
|
invalidPrefix = "invalid etag value"
|
|
|
|
ETagInvalid ETagErrorKind = "invalid"
|
|
ETagMismatch ETagErrorKind = "mismatch"
|
|
)
|
|
|
|
// ETagError is a custom error type for etag exceptions.
|
|
type ETagError struct {
|
|
err error
|
|
kind ETagErrorKind
|
|
}
|
|
|
|
func (e *ETagError) Kind() ETagErrorKind {
|
|
return e.kind
|
|
}
|
|
|
|
func (e *ETagError) Error() string {
|
|
var prefix string
|
|
|
|
switch e.kind {
|
|
case ETagInvalid:
|
|
prefix = invalidPrefix
|
|
case ETagMismatch:
|
|
prefix = mismatchPrefix
|
|
}
|
|
|
|
if e.err != nil {
|
|
return fmt.Sprintf("%s: %s", prefix, e.err)
|
|
}
|
|
|
|
return errors.New(prefix).Error()
|
|
}
|
|
|
|
// NewETagError returns an ETagError wrapping an existing context error.
|
|
func NewETagError(kind ETagErrorKind, err error) *ETagError {
|
|
return &ETagError{
|
|
err: err,
|
|
kind: kind,
|
|
}
|
|
}
|
|
|
|
// BulkDeleteRowMismatchError represents mismatch in rowcount while deleting rows.
|
|
type BulkDeleteRowMismatchError struct {
|
|
expected uint64
|
|
affected uint64
|
|
}
|
|
|
|
func (e *BulkDeleteRowMismatchError) Error() string {
|
|
return fmt.Sprintf("delete affected only %d rows, expected %d", e.affected, e.expected)
|
|
}
|
|
|
|
// BulkDeleteRowMismatchError returns a BulkDeleteRowMismatchError.
|
|
func NewBulkDeleteRowMismatchError(expected, affected uint64) *BulkDeleteRowMismatchError {
|
|
return &BulkDeleteRowMismatchError{
|
|
expected: expected,
|
|
affected: affected,
|
|
}
|
|
}
|