1 <?php
 2 /**
 3  * Cross - a micro PHP 5 framework
 4  *
 5  * @link        http://www.crossphp.com
 6  * @license     MIT License
 7  */
 8 
 9 namespace Cross\Cache;
10 
11 use Cross\I\RequestCacheInterface;
12 use Cross\Exception\CoreException;
13 use Cross\Cache\Request\FileCache;
14 use Cross\Cache\Request\RedisCache;
15 use Cross\Cache\Request\Memcache;
16 use ReflectionClass;
17 
18 /**
19  * RequestCache工厂类
20  *
21  * @author wonli <wonli@live.com>
22  * Class RequestCache
23  * @package Cross\Cache
24  */
25 class RequestCache
26 {
27     const FILE = 1;
28     const MEMCACHE = 2;
29     const REDIS = 3;
30 
31     /**
32      * @var FileCache|Memcache|RedisCache|RequestCacheInterface
33      */
34     static $instance;
35 
36     /**
37      * RequestCache
38      *
39      * @param int|object|string $type
40      * @param array $options
41      * @return FileCache|Memcache|RedisCache|RequestCacheInterface
42      * @throws CoreException
43      */
44     static function factory($type, array $options)
45     {
46         switch ($type) {
47             case 'file':
48             case self::FILE:
49                 $instance = new FileCache($options);
50                 break;
51 
52             case 'memcache':
53             case self::MEMCACHE:
54                 $instance = new Memcache($options);
55                 break;
56 
57             case 'redis':
58             case self::REDIS:
59                 $instance = new RedisCache($options);
60                 break;
61 
62             default:
63                 if (is_string($type)) {
64                     try {
65                         $rf = new ReflectionClass($type);
66                         if ($rf->implementsInterface('Cross\I\RequestCacheInterface')) {
67                             $instance = $rf->newInstance();
68                         } else {
69                             throw new CoreException('Must implement RequestCacheInterface');
70                         }
71                     } catch (\Exception $e) {
72                         throw new CoreException('Reflection ' . $e->getMessage());
73                     }
74                 } elseif (is_object($type)) {
75                     if ($type instanceof RequestCacheInterface) {
76                         $instance = $type;
77                     } else {
78                         throw new CoreException('Must implement RequestCacheInterface');
79                     }
80                 } else {
81                     throw new CoreException('Unsupported cache type!');
82                 }
83         }
84 
85         $instance->setConfig($options);
86         return $instance;
87     }
88 }
89 

CrossPHP API documentation generated by ApiGen