mirror of
https://gitee.com/ShopeX/OMS
synced 2026-03-22 18:35:35 +08:00
378 lines
9.2 KiB
PHP
378 lines
9.2 KiB
PHP
<?php
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/**
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* Copyright © ShopeX （http://www.shopex.cn）. All rights reserved.
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* See LICENSE file for license details.
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*/
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/*
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* @package base
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* @copyright Copyright (c) 2010, shopex. inc
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* @author edwin.lzh@gmail.com
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* @license
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* 为了数据安全，请确保persistent方法的调用正确
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*/
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class base_kvstore{
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/*
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* @var string $__instance
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* @access static private
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*/
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static private $__instance = array();
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/*
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* @var string $__persistent
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* @access static private
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*/
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static private $__persistent = true;
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/*
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* @var string $__controller
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* @access private
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*/
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private $__controller = null;
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/*
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* @var string $__prefix
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* @access private
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*/
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private $__prefix = null;
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/*
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* @var string $__fetch_count
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* @access static public
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*/
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static public $__fetch_count = 0;
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/*
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* @var string $__store_count
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* @access static public
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*/
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static public $__store_count = 0;
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/*
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* 构造
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* @var string $prefix
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* @access public
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* @return void
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*/
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function __construct($prefix){
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if(defined('FORCE_KVSTORE_STORAGE') && constant('FORCE_KVSTORE_STORAGE')){
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$this->set_controller(kernel::single(FORCE_KVSTORE_STORAGE, $prefix));
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}else{
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if(defined('KVSTORE_STORAGE') && constant('KVSTORE_STORAGE')){
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$this->set_controller(kernel::single(KVSTORE_STORAGE, $prefix));
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}else{
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$this->set_controller(kernel::single('base_kvstore_filesystem', $prefix));
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}
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}
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$this->set_prefix($prefix);
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}//End Function
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/*
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* 设置持久化与否
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* @var boolean $flag
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* @access public
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* @return string
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*/
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static function config_persistent($flag)
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{
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self::$__persistent = ($flag) ? true : false;
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}//End Function
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/*
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* 返回KV_PREFIX
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* @access public
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* @return string
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*/
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static public function kvprefix()
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{
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return (defined('KV_PREFIX')) ? KV_PREFIX : 'default';
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}//End Function
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/**
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* 实例一个kvstore
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* @var string $prefix
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* @access public
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* @return base_kvstore
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*/
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static public function instance($prefix){
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if(!isset(self::$__instance[$prefix])){
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self::$__instance[$prefix] = new base_kvstore($prefix);
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}
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return self::$__instance[$prefix];
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}//End Function
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/*
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* 设置prefix
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* @var string $prefix
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* @access public
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* @return void
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*/
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public function set_prefix($prefix)
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{
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$this->__prefix = $prefix;
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}//End Function
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/*
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* 取得prefix
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* @access public
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* @return string
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*/
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/**
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* 获取_prefix
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* @return mixed 返回结果
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*/
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public function get_prefix()
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{
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return $this->__prefix;
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}//End Function
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/*
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* 设置kvstore控制器
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* @var object $controller
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* @access public
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* @return void
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*/
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public function set_controller($controller)
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{
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if($controller instanceof base_interface_kvstore_base){
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$this->__controller = $controller;
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}else{
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throw new Exception('this instance must implements base_interface_kvstore_base');
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}
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}//End Function
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/*
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* 得到kvstore控制器
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* @access public
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* @return object
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*/
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/**
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* 获取_controller
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* @return mixed 返回结果
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*/
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public function get_controller()
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{
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return $this->__controller;
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}//End Function
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/*
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* 自增
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* @var string $key
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* @var int $offset
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* @access public
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* @return int
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*/
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public function increment($key, $offset=1)
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{
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if($this->get_controller() instanceof base_interface_kvstore_extension){
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return $this->get_controller()->increment($key, $offset);
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}else{
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throw new Exception('this instance can\'t support increment');
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}
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}//End Function
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/*
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* 自减
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* @var string $key
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* @var int $offset
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* @access public
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* @return int
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*/
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public function decrement($key, $offset=1)
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{
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if($this->get_controller() instanceof base_interface_kvstore_extension){
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return $this->get_controller()->decrement($key, $offset);
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}else{
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throw new Exception('this instance can\'t support decrement');
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}
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}//End Function
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/*
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* 获取key的内容
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* @var string $key
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* @var mixed &$value
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* @var int $timeout_version
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* @access public
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* @return boolean
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*/
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public function fetch($key, &$value, $timeout_version=null){
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self::$__fetch_count++;
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if($this->get_controller()->fetch($key, $value, $timeout_version)){
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return true;
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}else{
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return false;
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}
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}//End Function
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/**
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* supportUUID
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* @return mixed 返回值
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*/
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public function supportUUID(){
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return $this->get_controller()->supportUUID();
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}//End Function
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/**
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* 获取UUIDFix
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* @return mixed 返回结果
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*/
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public function getUUIDFix(){
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return $this->get_controller()->getUUIDFix();
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}//End Function
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/*
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* 设置key的内容
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* @var string $key
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* @var mixed $value
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* @var int $ttl
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* @access public
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* @return boolean
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*/
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public function store($key, $value, $ttl=0)
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{
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self::$__store_count++;
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if(!(defined('WITHOUT_KVSTORE_PERSISTENT') && constant('WITHOUT_KVSTORE_PERSISTENT')) && self::$__persistent && get_class($this->get_controller())!='base_kvstore_mysql' && kernel::is_online()){
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$this->persistent($key, $value, $ttl);
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}
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return $this->get_controller()->store($key, $value, $ttl);
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}//End Function
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/*
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* 删除key的内容
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* @var string $key
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* @var int $ttl
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* @access public
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* @return boolean
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*/
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/**
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* 删除
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* @param mixed $key key
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* @param mixed $ttl ttl
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* @return mixed 返回值
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*/
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public function delete($key, $ttl=1)
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{
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if($this->fetch($key, $value)){
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return $this->store($key, $value, ($ttl>0)?$ttl:1); //todo: 不实际删除，由cron统一处理delete
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}
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return true;
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}//End Function
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/**
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* real_delete
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* @param mixed $key key
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* @return mixed 返回值
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*/
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public function real_delete($key)
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{
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$single = base_kvstore::instance($this->__prefix);
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$single->get_controller()->delete($key);
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}
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/*
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* 数据持久化
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* @var string $key
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* @var mixed $value
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* @var int $ttl
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* @access public
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* @return void
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*/
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public function persistent($key, $value, $ttl=0)
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{
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kernel::single('base_kvstore_mysql', $this->get_prefix())->store($key, $value, $ttl); //todo: 持久化
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}//End Function
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/*
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* 数据还原
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* @var array $record
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* @access public
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* @return boolean
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*/
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/**
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* recovery
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* @param mixed $record record
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* @return mixed 返回值
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*/
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public function recovery($record)
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{
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return $this->get_controller()->recovery($record);
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}//End Function
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/*
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* 删除过期数据
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* @var array $record
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* @access public
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* @return boolean
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*/
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static public function delete_expire_data()
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{
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$time = time();
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$count = kernel::database()->count('SELECT count(*) FROM sdb_base_kvstore WHERE ttl>0 AND (dateline+ttl)<'.$time);
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$pagesize = 100;
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$page = ceil($count / 100);
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for($i=0; $i<$page; $i++){
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$rows = kernel::database()->selectlimit('SELECT `prefix`, `key` FROM sdb_base_kvstore WHERE ttl>0 AND (dateline+ttl)<'.$time, $pagesize, $i*$pagesize);
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foreach($rows AS $row){
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$single = base_kvstore::instance($row['prefix']);
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if(get_class($single->get_controller()) != 'base_kvstore_mysql'){
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$single->get_controller()->delete($row['key']);
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}
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}
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}
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kernel::database()->exec('DELETE FROM sdb_base_kvstore WHERE ttl>0 AND (dateline+ttl)<'.$time, true);
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}//End Function
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/**
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* append
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* @param mixed $key key
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* @param mixed $value value
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* @param mixed $ttl ttl
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* @return mixed 返回值
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*/
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public function append($key, $value, $ttl=0)
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{
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if($this->fetch($key, $last_value)){
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$value = $last_value . $value;
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}
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if(!(defined('WITHOUT_KVSTORE_PERSISTENT') && constant('WITHOUT_KVSTORE_PERSISTENT')) && self::$__persistent && get_class($this->get_controller())!='taoexlib_kvstore_mysql' && kernel::is_online()){
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$this->persistent($key, $value, $ttl);
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}
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return $this->get_controller()->store($key, $value, $ttl);
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}//End Function
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/**
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* 初始化自增ID值
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*
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* @return void
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* @author
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*/
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public function setcr($key, $value, $ttl=0)
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{
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if ($this->supportUUID() && method_exists($this->get_controller(),'setcr')) {
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return $this->get_controller()->setcr($key, $value, $ttl);
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}
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return false;
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}
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}//End Class
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