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token.go
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token.go
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// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you 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 auth
import "sync"
// GenericHolder is a simple implementation of TokenHandler which persists the token in
// an inmemory struct field which is guarded by a RWMutex.
type GenericHolder struct {
mu sync.RWMutex
token string
}
// Load returns a persisted token scoped to the current authenticated user.
func (t *GenericHolder) Load() (string, error) { return "", nil }
// Update replaces the token with a new one.
func (t *GenericHolder) Update(s string) error {
defer t.mu.Unlock()
t.mu.Lock()
t.token = s
return nil
}
// Token returns current token.
func (t *GenericHolder) Token() string {
defer t.mu.RUnlock()
t.mu.RLock()
return t.token
}