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client: add IsKeyNotFound function

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This can be used to check if an error is client.ErrorCodeKeyNotFound.
Related to https://github.com/coreos/etcd/issues/4080.
This commit is contained in:
Gyu-Ho Lee 2016-01-12 17:20:35 -08:00
parent 42b5bc021a
commit f67f6d7c7c
1 changed files with 23 additions and 0 deletions
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client/util.go Normal file
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// Copyright 2016 CoreOS, 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 client
// IsKeyNotFound returns true if the error code is ErrorCodeKeyNotFound.
func IsKeyNotFound(err error) bool {
if cErr, ok := err.(Error); ok {
return cErr.Code == ErrorCodeKeyNotFound
}
return false
}