Files
cloudpods/pkg/monitor/notifydrivers/feishu/cache.go

69 lines
1.5 KiB
Go

// Copyright 2019 Yunion
//
// 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 feishu
import (
"encoding/json"
"fmt"
"io/ioutil"
"time"
)
type IExpirable interface {
CreatedAt() int64
ExpiresIn() int64
}
type ICache interface {
Set(data IExpirable) error
Get(data IExpirable) error
}
type FileCache struct {
Path string
}
func NewFileCache(path string) *FileCache {
return &FileCache{
Path: path,
}
}
func (c *FileCache) Set(data IExpirable) error {
bytes, err := json.Marshal(data)
if err == nil {
ioutil.WriteFile(c.Path, bytes, 0644)
}
return err
}
func (c *FileCache) Get(data IExpirable) error {
bytes, err := ioutil.ReadFile(c.Path)
if err != nil {
return err
}
err = json.Unmarshal(bytes, data)
if err != nil {
return err
}
created := data.CreatedAt()
expires := data.ExpiresIn()
// The operator '-120' can give us a head start on the expiration date
if time.Now().Unix() > created+expires-120 {
err = fmt.Errorf("Data is already expired")
}
return err
}