vox-fw /system/libraries/Zend/Cache/Backend/Test.php

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<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Cache
 * @subpackage Zend_Cache_Backend
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Test.php 23775 2011-03-01 17:25:24Z ralph $
 */


/**
 * @see Zend_Cache_Backend_Interface
 */
require_once 'Zend/Cache/Backend/ExtendedInterface.php';

/**
 * @see Zend_Cache_Backend
 */
require_once 'Zend/Cache/Backend.php';

/**
 * @package    Zend_Cache
 * @subpackage Zend_Cache_Backend
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Cache_Backend_Test extends Zend_Cache_Backend implements Zend_Cache_Backend_ExtendedInterface
{
    /**
     * Available options
     *
     * @var array available options
     */
    protected $_options = array();

    /**
     * Frontend or Core directives
     *
     * @var array directives
     */
    protected $_directives = array();

    /**
     * Array to log actions
     *
     * @var array $_log
     */
    private $_log = array();

    /**
     * Current index for log array
     *
     * @var int $_index
     */
    private $_index = 0;

    /**
     * Constructor
     *
     * @param  array $options associative array of options
     * @return void
     */
    public function __construct($options = array())
    {
        $this->_addLog('construct', array($options));
    }

    /**
     * Set the frontend directives
     *
     * @param  array $directives assoc of directives
     * @return void
     */
    public function setDirectives($directives)
    {
        $this->_addLog('setDirectives', array($directives));
    }

    /**
     * Test if a cache is available for the given id and (if yes) return it (false else)
     *
     * For this test backend only, if $id == 'false', then the method will return false
     * if $id == 'serialized', the method will return a serialized array
     * ('foo' else)
     *
     * @param  string  $id                     Cache id
     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
     * @return string Cached datas (or false)
     */
    public function load($id, $doNotTestCacheValidity = false)
    {
        $this->_addLog('get', array($id, $doNotTestCacheValidity));

        if ( $id == 'false'
          || $id == 'd8523b3ee441006261eeffa5c3d3a0a7'
          || $id == 'e83249ea22178277d5befc2c5e2e9ace'
          || $id == '40f649b94977c0a6e76902e2a0b43587'
          || $id == '88161989b73a4cbfd0b701c446115a99'
          || $id == '205fc79cba24f0f0018eb92c7c8b3ba4'
          || $id == '170720e35f38150b811f68a937fb042d')
        {
            return false;
        }
        if ($id=='serialized') {
            return serialize(array('foo'));
        }
        if ($id=='serialized2') {
            return serialize(array('headers' => array(), 'data' => 'foo'));
        }
        if ( $id == '71769f39054f75894288e397df04e445' || $id == '615d222619fb20b527168340cebd0578'
          || $id == '8a02d218a5165c467e7a5747cc6bd4b6' || $id == '648aca1366211d17cbf48e65dc570bee'
          || $id == '4a923ef02d7f997ca14d56dfeae25ea7') {
            return serialize(array('foo', 'bar'));
        }
        return 'foo';
    }

    /**
     * Test if a cache is available or not (for the given id)
     *
     * For this test backend only, if $id == 'false', then the method will return false
     * (123456 else)
     *
     * @param  string $id Cache id
     * @return mixed|false false (a cache is not available) or "last modified" timestamp (int) of the available cache record
     */
    public function test($id)
    {
        $this->_addLog('test', array($id));
        if ($id=='false') {
            return false;
        }
        if (($id=='3c439c922209e2cb0b54d6deffccd75a')) {
            return false;
        }
        return 123456;
    }

    /**
     * Save some string datas into a cache record
     *
     * For this test backend only, if $id == 'false', then the method will return false
     * (true else)
     *
     * @param  string $data             Datas to cache
     * @param  string $id               Cache id
     * @param  array  $tags             Array of strings, the cache record will be tagged by each string entry
     * @param  int    $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
     * @return boolean True if no problem
     */
    public function save($data, $id, $tags = array(), $specificLifetime = false)
    {
        $this->_addLog('save', array($data, $id, $tags));
        if (substr($id,-5)=='false') {
            return false;
        }
        return true;
    }

    /**
     * Remove a cache record
     *
     * For this test backend only, if $id == 'false', then the method will return false
     * (true else)
     *
     * @param  string $id Cache id
     * @return boolean True if no problem
     */
    public function remove($id)
    {
        $this->_addLog('remove', array($id));
        if (substr($id,-5)=='false') {
            return false;
        }
        return true;
    }

    /**
     * Clean some cache records
     *
     * For this test backend only, if $mode == 'false', then the method will return false
     * (true else)
     *
     * Available modes are :
     * Zend_Cache::CLEANING_MODE_ALL (default)    => remove all cache entries ($tags is not used)
     * Zend_Cache::CLEANING_MODE_OLD              => remove too old cache entries ($tags is not used)
     * Zend_Cache::CLEANING_MODE_MATCHING_TAG     => remove cache entries matching all given tags
     *                                               ($tags can be an array of strings or a single string)
     * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags}
     *                                               ($tags can be an array of strings or a single string)
     *
     * @param  string $mode Clean mode
     * @param  array  $tags Array of tags
     * @return boolean True if no problem
     */
    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
    {
        $this->_addLog('clean', array($mode, $tags));
        if ($mode=='false') {
            return false;
        }
        return true;
    }

    /**
     * Get the last log
     *
     * @return string The last log
     */
    public function getLastLog()
    {
        return $this->_log[$this->_index - 1];
    }

    /**
     * Get the log index
     *
     * @return int Log index
     */
    public function getLogIndex()
    {
        return $this->_index;
    }

    /**
     * Get the complete log array
     *
     * @return array Complete log array
     */
    public function getAllLogs()
    {
        return $this->_log;
    }

    /**
     * Return true if the automatic cleaning is available for the backend
     *
     * @return boolean
     */
    public function isAutomaticCleaningAvailable()
    {
        return true;
    }

    /**
     * Return an array of stored cache ids
     *
     * @return array array of stored cache ids (string)
     */
    public function getIds()
    {
        return array(
            'prefix_id1', 'prefix_id2'
        );
    }

    /**
     * Return an array of stored tags
     *
     * @return array array of stored tags (string)
     */
    public function getTags()
    {
        return array(
            'tag1', 'tag2'
        );
    }

    /**
     * Return an array of stored cache ids which match given tags
     *
     * In case of multiple tags, a logical AND is made between tags
     *
     * @param array $tags array of tags
     * @return array array of matching cache ids (string)
     */
    public function getIdsMatchingTags($tags = array())
    {
        if ($tags == array('tag1', 'tag2')) {
            return array('prefix_id1', 'prefix_id2');
        }

        return array();
    }

    /**
     * Return an array of stored cache ids which don't match given tags
     *
     * In case of multiple tags, a logical OR is made between tags
     *
     * @param array $tags array of tags
     * @return array array of not matching cache ids (string)
     */
    public function getIdsNotMatchingTags($tags = array())
    {
        if ($tags == array('tag3', 'tag4')) {
            return array('prefix_id3', 'prefix_id4');
        }

        return array();
    }

    /**
     * Return an array of stored cache ids which match any given tags
     *
     * In case of multiple tags, a logical AND is made between tags
     *
     * @param array $tags array of tags
     * @return array array of any matching cache ids (string)
     */
    public function getIdsMatchingAnyTags($tags = array())
    {
        if ($tags == array('tag5', 'tag6')) {
            return array('prefix_id5', 'prefix_id6');
        }

        return array();
    }

    /**
     * Return the filling percentage of the backend storage
     *
     * @return int integer between 0 and 100
     */
    public function getFillingPercentage()
    {
        return 50;
    }

    /**
     * Return an array of metadatas for the given cache id
     *
     * The array must include these keys :
     * - expire : the expire timestamp
     * - tags : a string array of tags
     * - mtime : timestamp of last modification time
     *
     * @param string $id cache id
     * @return array array of metadatas (false if the cache id is not found)
     */
    public function getMetadatas($id)
    {
        return false;
    }

    /**
     * Give (if possible) an extra lifetime to the given cache id
     *
     * @param string $id cache id
     * @param int $extraLifetime
     * @return boolean true if ok
     */
    public function touch($id, $extraLifetime)
    {
        return true;
    }

    /**
     * Return an associative array of capabilities (booleans) of the backend
     *
     * The array must include these keys :
     * - automatic_cleaning (is automating cleaning necessary)
     * - tags (are tags supported)
     * - expired_read (is it possible to read expired cache records
     *                 (for doNotTestCacheValidity option for example))
     * - priority does the backend deal with priority when saving
     * - infinite_lifetime (is infinite lifetime can work with this backend)
     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
     *
     * @return array associative of with capabilities
     */
    public function getCapabilities()
    {
        return array(
            'automatic_cleaning' => true,
            'tags'               => true,
            'expired_read'       => false,
            'priority'           => true,
            'infinite_lifetime'  => true,
            'get_list'           => true
        );
    }

    /**
     * Add an event to the log array
     *
     * @param  string $methodName MethodName
     * @param  array  $args       Arguments
     * @return void
     */
    private function _addLog($methodName, $args)
    {
        $this->_log[$this->_index] = array(
            'methodName' => $methodName,
            'args' => $args
        );
        $this->_index = $this->_index + 1;
    }

}
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