balmet.com

Unnamed repository; edit this file 'description' to name the repository.
Log | Files | Refs

Cache.php (4355B)

      1 <?php
      2 /**
      3  * SimplePie
      4  *
      5  * A PHP-Based RSS and Atom Feed Framework.
      6  * Takes the hard work out of managing a complete RSS/Atom solution.
      7  *
      8  * Copyright (c) 2004-2016, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
      9  * All rights reserved.
     10  *
     11  * Redistribution and use in source and binary forms, with or without modification, are
     12  * permitted provided that the following conditions are met:
     13  *
     14  * 	* Redistributions of source code must retain the above copyright notice, this list of
     15  * 	  conditions and the following disclaimer.
     16  *
     17  * 	* Redistributions in binary form must reproduce the above copyright notice, this list
     18  * 	  of conditions and the following disclaimer in the documentation and/or other materials
     19  * 	  provided with the distribution.
     20  *
     21  * 	* Neither the name of the SimplePie Team nor the names of its contributors may be used
     22  * 	  to endorse or promote products derived from this software without specific prior
     23  * 	  written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
     26  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
     27  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
     28  * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     30  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     31  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     32  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     33  * POSSIBILITY OF SUCH DAMAGE.
     34  *
     35  * @package SimplePie
     36  * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue
     37  * @author Ryan Parman
     38  * @author Sam Sneddon
     39  * @author Ryan McCue
     40  * @link http://simplepie.org/ SimplePie
     41  * @license http://www.opensource.org/licenses/bsd-license.php BSD License
     42  */
     43 
     44 /**
     45  * Used to create cache objects
     46  *
     47  * This class can be overloaded with {@see SimplePie::set_cache_class()},
     48  * although the preferred way is to create your own handler
     49  * via {@see register()}
     50  *
     51  * @package SimplePie
     52  * @subpackage Caching
     53  */
     54 class SimplePie_Cache
     55 {
     56 	/**
     57 	 * Cache handler classes
     58 	 *
     59 	 * These receive 3 parameters to their constructor, as documented in
     60 	 * {@see register()}
     61 	 * @var array
     62 	 */
     63 	protected static $handlers = array(
     64 		'mysql'     => 'SimplePie_Cache_MySQL',
     65 		'memcache'  => 'SimplePie_Cache_Memcache',
     66 		'memcached' => 'SimplePie_Cache_Memcached',
     67 		'redis'     => 'SimplePie_Cache_Redis'
     68 	);
     69 
     70 	/**
     71 	 * Don't call the constructor. Please.
     72 	 */
     73 	private function __construct() { }
     74 
     75 	/**
     76 	 * Create a new SimplePie_Cache object
     77 	 *
     78 	 * @param string $location URL location (scheme is used to determine handler)
     79 	 * @param string $filename Unique identifier for cache object
     80 	 * @param string $extension 'spi' or 'spc'
     81 	 * @return SimplePie_Cache_Base Type of object depends on scheme of `$location`
     82 	 */
     83 	public static function get_handler($location, $filename, $extension)
     84 	{
     85 		$type = explode(':', $location, 2);
     86 		$type = $type[0];
     87 		if (!empty(self::$handlers[$type]))
     88 		{
     89 			$class = self::$handlers[$type];
     90 			return new $class($location, $filename, $extension);
     91 		}
     92 
     93 		return new SimplePie_Cache_File($location, $filename, $extension);
     94 	}
     95 
     96 	/**
     97 	 * Create a new SimplePie_Cache object
     98 	 *
     99 	 * @deprecated Use {@see get_handler} instead
    100 	 */
    101 	public function create($location, $filename, $extension)
    102 	{
    103 		trigger_error('Cache::create() has been replaced with Cache::get_handler(). Switch to the registry system to use this.', E_USER_DEPRECATED);
    104 		return self::get_handler($location, $filename, $extension);
    105 	}
    106 
    107 	/**
    108 	 * Register a handler
    109 	 *
    110 	 * @param string $type DSN type to register for
    111 	 * @param string $class Name of handler class. Must implement SimplePie_Cache_Base
    112 	 */
    113 	public static function register($type, $class)
    114 	{
    115 		self::$handlers[$type] = $class;
    116 	}
    117 
    118 	/**
    119 	 * Parse a URL into an array
    120 	 *
    121 	 * @param string $url
    122 	 * @return array
    123 	 */
    124 	public static function parse_URL($url)
    125 	{
    126 		$params = parse_url($url);
    127 		$params['extras'] = array();
    128 		if (isset($params['query']))
    129 		{
    130 			parse_str($params['query'], $params['extras']);
    131 		}
    132 		return $params;
    133 	}
    134 }