root / drupal7 / sites / all / libraries / simplepie / library / SimplePie / Cache.php @ 41cc1b08
1 | 41cc1b08 | Assos Assos | <?php
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2 | /**
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3 | * SimplePie
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4 | *
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5 | * A PHP-Based RSS and Atom Feed Framework.
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6 | * Takes the hard work out of managing a complete RSS/Atom solution.
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7 | *
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8 | * Copyright (c) 2004-2012, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
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9 | * All rights reserved.
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10 | *
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11 | * Redistribution and use in source and binary forms, with or without modification, are
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12 | * permitted provided that the following conditions are met:
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13 | *
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14 | * * Redistributions of source code must retain the above copyright notice, this list of
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15 | * conditions and the following disclaimer.
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16 | *
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17 | * * Redistributions in binary form must reproduce the above copyright notice, this list
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18 | * of conditions and the following disclaimer in the documentation and/or other materials
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19 | * provided with the distribution.
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20 | *
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21 | * * Neither the name of the SimplePie Team nor the names of its contributors may be used
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22 | * to endorse or promote products derived from this software without specific prior
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23 | * written permission.
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24 | *
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25 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
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26 | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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27 | * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
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28 | * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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29 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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30 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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31 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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32 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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33 | * POSSIBILITY OF SUCH DAMAGE.
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34 | *
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35 | * @package SimplePie
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36 | * @version 1.3.1
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37 | * @copyright 2004-2012 Ryan Parman, Geoffrey Sneddon, Ryan McCue
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38 | * @author Ryan Parman
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39 | * @author Geoffrey Sneddon
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40 | * @author Ryan McCue
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41 | * @link http://simplepie.org/ SimplePie
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42 | * @license http://www.opensource.org/licenses/bsd-license.php BSD License
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43 | */
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44 | |||
45 | /**
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46 | * Used to create cache objects
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47 | *
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48 | * This class can be overloaded with {@see SimplePie::set_cache_class()},
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49 | * although the preferred way is to create your own handler
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50 | * via {@see register()}
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51 | *
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52 | * @package SimplePie
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53 | * @subpackage Caching
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54 | */
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55 | class SimplePie_Cache |
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56 | { |
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57 | /**
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58 | * Cache handler classes
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59 | *
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60 | * These receive 3 parameters to their constructor, as documented in
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61 | * {@see register()}
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62 | * @var array
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63 | */
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64 | protected static $handlers = array( |
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65 | 'mysql' => 'SimplePie_Cache_MySQL', |
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66 | 'memcache' => 'SimplePie_Cache_Memcache', |
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67 | ); |
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68 | |||
69 | /**
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70 | * Don't call the constructor. Please.
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71 | */
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72 | private function __construct() { } |
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73 | |||
74 | /**
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75 | * Create a new SimplePie_Cache object
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76 | *
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77 | * @param string $location URL location (scheme is used to determine handler)
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78 | * @param string $filename Unique identifier for cache object
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79 | * @param string $extension 'spi' or 'spc'
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80 | * @return SimplePie_Cache_Base Type of object depends on scheme of `$location`
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81 | */
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82 | public static function get_handler($location, $filename, $extension) |
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83 | { |
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84 | $type = explode(':', $location, 2); |
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85 | $type = $type[0]; |
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86 | if (!empty(self::$handlers[$type])) |
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87 | { |
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88 | $class = self::$handlers[$type]; |
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89 | return new $class($location, $filename, $extension); |
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90 | } |
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91 | |||
92 | return new SimplePie_Cache_File($location, $filename, $extension); |
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93 | } |
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94 | |||
95 | /**
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96 | * Create a new SimplePie_Cache object
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97 | *
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98 | * @deprecated Use {@see get_handler} instead
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99 | */
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100 | public function create($location, $filename, $extension) |
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101 | { |
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102 | trigger_error('Cache::create() has been replaced with Cache::get_handler(). Switch to the registry system to use this.', E_USER_DEPRECATED); |
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103 | return self::get_handler($location, $filename, $extension); |
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104 | } |
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105 | |||
106 | /**
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107 | * Register a handler
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108 | *
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109 | * @param string $type DSN type to register for
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110 | * @param string $class Name of handler class. Must implement SimplePie_Cache_Base
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111 | */
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112 | public static function register($type, $class) |
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113 | { |
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114 | self::$handlers[$type] = $class; |
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115 | } |
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116 | |||
117 | /**
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118 | * Parse a URL into an array
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119 | *
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120 | * @param string $url
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121 | * @return array
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122 | */
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123 | public static function parse_URL($url) |
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124 | { |
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125 | $params = parse_url($url); |
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126 | $params['extras'] = array(); |
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127 | if (isset($params['query'])) |
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128 | { |
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129 | parse_str($params['query'], $params['extras']); |
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130 | } |
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131 | return $params; |
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132 | } |
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133 | } |