Parser.php
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<?php
namespace common\components\cachekey;
use Yii;
/**
* @author wuxiao
* @date 2016-8-29
*/
class Parser{
/**
* 缓存句柄
* @var type
*/
private $cache;
/**
* 缓存过期时间，秒
* @var type
*/
private $expire = 0;
/**
* 错误信息
* @var type
*/
static $error;
static function self(){
static $self;
if (empty($self)){
$self = new self;
}
return $self;
}
public function __construct() {
$this->cache = Yii::createObject('yii\caching\ArrayCache');
}
static function get($path,$params){
$self = self::self();
$main_key = 'get'.$path.serialize($params);
if ($realkey = $self->cache->get($main_key)){
return $realkey;
}
$key = 'cacheKey'.$path;
if (!$cachekey = $self->cache->get($key)){
$cache = basename($path);
$dir = dirname($path);
if (!$cacheMap = $self->read($dir)){
self::$error = 'cannot read '.$path;
return;
}
if (empty($cacheMap[$cache])){
self::$error = 'cannot find map key '.$cache;
return;
}
$cachekey = $cacheMap[$cache];
$self->cache->set($key,$cachekey,$self->expire);
}
if (func_num_args() > 2){
$params = func_get_args();
array_shift($params);
}
if (is_array($params)){
if (!is_list($params)){
$dict = $list = [];
foreach ($params as $tag=>$value){
if (!is_int($tag)){
$dict['{'.$tag.'}'] = $value;
}else{
$list[] = $value;
}
}
$cachekey = strtr($cachekey,$dict);
$params = $list;
}
$realkey = preg_replace('/{[^}]+}/', '%s', $cachekey);
$realkey = call_user_func_array('sprintf',array($realkey)+$params);
}else{
$realkey = preg_replace('/{[^}]+}/', '%s', $cachekey);
$realkey = sprintf($realkey,$params);
}
$self->cache->set($main_key,$realkey,$self->expire);
return $realkey;
}
private function read($path){
$key = __FUNCTION__.$path;
if (!$content = $this->cache->get($key)){
if (!is_readable($file = __DIR__.'/keys/'.$path.'.php')){
return false;
}
$content = include($file);
$this->cache->set($key,$content,$this->expire);
}
return $content;
}
}
if (!function_exists('is_list')){
function is_list(array $arr){
return array_keys($arr) === range(0,count($arr)-1);
}
}