wehub-resource-sync
57 lines
1.9 KiB
Go
57 lines
1.9 KiB
Go
// Copyright 2019 Dolthub, Inc.
|
|
//
|
|
// 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 blobstore
|
|
|
|
// NotFound is an error type used only when a storage artifact is not found - like a table file.
|
|
// This is not used for missing chunks, see |MissingChunkError| below.
|
|
type NotFound struct {
|
|
Key string
|
|
}
|
|
|
|
// Error returns the key which was not found
|
|
func (nf NotFound) Error() string {
|
|
return "Blob not found: " + nf.Key
|
|
}
|
|
|
|
// IsNotFoundError is a helper method used to determine if returned errors resulted
|
|
// because the key didn't exist as opposed to something going wrong.
|
|
func IsNotFoundError(err error) bool {
|
|
_, ok := err.(NotFound)
|
|
|
|
return ok
|
|
}
|
|
|
|
// CheckAndPutError is an error type used when CheckAndPut fails because of a version
|
|
// mismatch.
|
|
type CheckAndPutError struct {
|
|
Key string
|
|
ExpectedVersion string
|
|
ActualVersion string
|
|
}
|
|
|
|
// Error (Required method of error) returns an error message for debugging
|
|
func (err CheckAndPutError) Error() string {
|
|
return "Blob: \"" + err.Key + "\" expected: \"" + err.ExpectedVersion + "\" actual: \"" + err.ActualVersion + "\""
|
|
}
|
|
|
|
// IsCheckAndPutError is a helper method used to determine if CheckAndPut errors
|
|
// resulted because of version mismatches (Which happens when you have multiple)
|
|
// writers of a blob with a given key.
|
|
func IsCheckAndPutError(err error) bool {
|
|
_, ok := err.(CheckAndPutError)
|
|
|
|
return ok
|
|
}
|