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inmem.go
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/
inmem.go
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// Copyright 2021 Layer5, 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 provider
import (
"sync"
"github.com/layer5io/meshkit/config"
"github.com/layer5io/meshkit/utils"
)
// Type InMem implements the config interface Handler for an in-memory configuration registry.
type InMem struct {
store map[string]string
mutex sync.Mutex
}
// NewInMem returns a new instance of an in-memory configuration provider using the provided Options opts.
func NewInMem(opts Options) (config.Handler, error) {
return &InMem{
store: make(map[string]string),
}, nil
}
// -------------------------------------------Application config methods----------------------------------------------------------------
// SetKey sets a key value in local store
func (l *InMem) SetKey(key string, value string) {
l.mutex.Lock()
l.store[key] = value
l.mutex.Unlock()
}
// GetKey gets a key value from local store
func (l *InMem) GetKey(key string) string {
l.mutex.Lock()
defer l.mutex.Unlock()
return l.store[key]
}
// GetObject gets an object value for the key
func (l *InMem) GetObject(key string, result interface{}) error {
l.mutex.Lock()
defer l.mutex.Unlock()
return utils.Unmarshal(l.store[key], result)
}
// SetObject sets an object value for the key
func (l *InMem) SetObject(key string, value interface{}) error {
l.mutex.Lock()
val, err := utils.Marshal(value)
defer l.mutex.Unlock()
if err != nil {
return config.ErrInMem(err)
}
l.store[key] = val
return nil
}