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Adapter: utils

This commit is contained in:
Ming Deng
2020-09-05 18:07:42 +08:00
parent 35f1bd2119
commit f4a43814be
25 changed files with 1455 additions and 0 deletions

85
pkg/adapter/cache/cache.go vendored Normal file
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// Copyright 2014 beego Author. All Rights Reserved.
//
// 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 cache provide a Cache interface and some implement engine
// Usage:
//
// import(
// "github.com/astaxie/beego/cache"
// )
//
// bm, err := cache.NewCache("memory", `{"interval":60}`)
//
// Use it like this:
//
// bm.Put("astaxie", 1, 10 * time.Second)
// bm.Get("astaxie")
// bm.IsExist("astaxie")
// bm.Delete("astaxie")
//
// more docs http://beego.me/docs/module/cache.md
package cache
import (
"fmt"
"github.com/astaxie/beego/pkg/client/cache"
)
// Cache interface contains all behaviors for cache adapter.
// usage:
// cache.Register("file",cache.NewFileCache) // this operation is run in init method of file.go.
// c,err := cache.NewCache("file","{....}")
// c.Put("key",value, 3600 * time.Second)
// v := c.Get("key")
//
// c.Incr("counter") // now is 1
// c.Incr("counter") // now is 2
// count := c.Get("counter").(int)
type Cache cache.Cache
// Instance is a function create a new Cache Instance
type Instance func() Cache
var adapters = make(map[string]Instance)
// Register makes a cache adapter available by the adapter name.
// If Register is called twice with the same name or if driver is nil,
// it panics.
func Register(name string, adapter Instance) {
if adapter == nil {
panic("cache: Register adapter is nil")
}
if _, ok := adapters[name]; ok {
panic("cache: Register called twice for adapter " + name)
}
adapters[name] = adapter
}
// NewCache Create a new cache driver by adapter name and config string.
// config need to be correct JSON as string: {"interval":360}.
// it will start gc automatically.
func NewCache(adapterName, config string) (adapter Cache, err error) {
instanceFunc, ok := adapters[adapterName]
if !ok {
err = fmt.Errorf("cache: unknown adapter name %q (forgot to import?)", adapterName)
return
}
adapter = instanceFunc()
err = adapter.StartAndGC(config)
if err != nil {
adapter = nil
}
return
}

191
pkg/adapter/cache/cache_test.go vendored Normal file
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// Copyright 2014 beego Author. All Rights Reserved.
//
// 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 cache
import (
"os"
"sync"
"testing"
"time"
)
func TestCacheIncr(t *testing.T) {
bm, err := NewCache("memory", `{"interval":20}`)
if err != nil {
t.Error("init err")
}
//timeoutDuration := 10 * time.Second
bm.Put("edwardhey", 0, time.Second*20)
wg := sync.WaitGroup{}
wg.Add(10)
for i := 0; i < 10; i++ {
go func() {
defer wg.Done()
bm.Incr("edwardhey")
}()
}
wg.Wait()
if bm.Get("edwardhey").(int) != 10 {
t.Error("Incr err")
}
}
func TestCache(t *testing.T) {
bm, err := NewCache("memory", `{"interval":20}`)
if err != nil {
t.Error("init err")
}
timeoutDuration := 10 * time.Second
if err = bm.Put("astaxie", 1, timeoutDuration); err != nil {
t.Error("set Error", err)
}
if !bm.IsExist("astaxie") {
t.Error("check err")
}
if v := bm.Get("astaxie"); v.(int) != 1 {
t.Error("get err")
}
time.Sleep(30 * time.Second)
if bm.IsExist("astaxie") {
t.Error("check err")
}
if err = bm.Put("astaxie", 1, timeoutDuration); err != nil {
t.Error("set Error", err)
}
if err = bm.Incr("astaxie"); err != nil {
t.Error("Incr Error", err)
}
if v := bm.Get("astaxie"); v.(int) != 2 {
t.Error("get err")
}
if err = bm.Decr("astaxie"); err != nil {
t.Error("Decr Error", err)
}
if v := bm.Get("astaxie"); v.(int) != 1 {
t.Error("get err")
}
bm.Delete("astaxie")
if bm.IsExist("astaxie") {
t.Error("delete err")
}
//test GetMulti
if err = bm.Put("astaxie", "author", timeoutDuration); err != nil {
t.Error("set Error", err)
}
if !bm.IsExist("astaxie") {
t.Error("check err")
}
if v := bm.Get("astaxie"); v.(string) != "author" {
t.Error("get err")
}
if err = bm.Put("astaxie1", "author1", timeoutDuration); err != nil {
t.Error("set Error", err)
}
if !bm.IsExist("astaxie1") {
t.Error("check err")
}
vv := bm.GetMulti([]string{"astaxie", "astaxie1"})
if len(vv) != 2 {
t.Error("GetMulti ERROR")
}
if vv[0].(string) != "author" {
t.Error("GetMulti ERROR")
}
if vv[1].(string) != "author1" {
t.Error("GetMulti ERROR")
}
}
func TestFileCache(t *testing.T) {
bm, err := NewCache("file", `{"CachePath":"cache","FileSuffix":".bin","DirectoryLevel":"2","EmbedExpiry":"0"}`)
if err != nil {
t.Error("init err")
}
timeoutDuration := 10 * time.Second
if err = bm.Put("astaxie", 1, timeoutDuration); err != nil {
t.Error("set Error", err)
}
if !bm.IsExist("astaxie") {
t.Error("check err")
}
if v := bm.Get("astaxie"); v.(int) != 1 {
t.Error("get err")
}
if err = bm.Incr("astaxie"); err != nil {
t.Error("Incr Error", err)
}
if v := bm.Get("astaxie"); v.(int) != 2 {
t.Error("get err")
}
if err = bm.Decr("astaxie"); err != nil {
t.Error("Decr Error", err)
}
if v := bm.Get("astaxie"); v.(int) != 1 {
t.Error("get err")
}
bm.Delete("astaxie")
if bm.IsExist("astaxie") {
t.Error("delete err")
}
//test string
if err = bm.Put("astaxie", "author", timeoutDuration); err != nil {
t.Error("set Error", err)
}
if !bm.IsExist("astaxie") {
t.Error("check err")
}
if v := bm.Get("astaxie"); v.(string) != "author" {
t.Error("get err")
}
//test GetMulti
if err = bm.Put("astaxie1", "author1", timeoutDuration); err != nil {
t.Error("set Error", err)
}
if !bm.IsExist("astaxie1") {
t.Error("check err")
}
vv := bm.GetMulti([]string{"astaxie", "astaxie1"})
if len(vv) != 2 {
t.Error("GetMulti ERROR")
}
if vv[0].(string) != "author" {
t.Error("GetMulti ERROR")
}
if vv[1].(string) != "author1" {
t.Error("GetMulti ERROR")
}
os.RemoveAll("cache")
}