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gormcache_memcached.go
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gormcache_memcached.go
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/*
Copyright 2023 Rodolfo González González
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 gormcache
import (
"context"
"encoding/json"
"time"
memcache "github.com/bradfitz/gomemcache/memcache"
)
// MemcacheClient is a wrapper for gomemcache client
type MemcacheClient struct {
client *memcache.Client
}
// NewMemcacheClient returns a new RedisClient instance
func NewMemcacheClient(client *memcache.Client) *MemcacheClient {
return &MemcacheClient{
client: client,
}
}
// Get gets value from memcache by key using json encoding/decoding
func (r *MemcacheClient) Get(ctx context.Context, key string) (interface{}, error) {
data, err := r.client.Get(key)
if err != nil {
return nil, nil
}
value := data.Value
//log.Printf("get cache %v, key: %v", value, key)
return value, nil
}
// Set sets value to memcache by key with ttl using json encoding/decoding
func (r *MemcacheClient) Set(ctx context.Context, key string, value interface{}, ttl time.Duration) error {
data, err := json.Marshal(value) // encode value to json bytes using json encoding/decoding
if err != nil {
return err
}
return r.client.Set(&memcache.Item{Key: key, Value: data, Expiration: int32(ttl.Seconds())})
}