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   1  <?php
   2  /*+***********************************************************************************
   3   * The contents of this file are subject to the vtiger CRM Public License Version 1.0
   4   * ("License"); You may not use this file except in compliance with the License
   5   * The Original Code is:  vtiger CRM Open Source
   6   * The Initial Developer of the Original Code is vtiger.
   7   * Portions created by vtiger are Copyright (C) vtiger.
   8   * All Rights Reserved.
   9   *************************************************************************************/
  10  
  11  include_once dirname(__FILE__) . '/Connectors.php';
  12  
  13  class Vtiger_Cache_Connector {
  14      protected $connection;
  15  
  16  	protected function __construct() {
  17          if (!$this->connection) {
  18              $this->connection = new Vtiger_Cache_Connector_Memory();
  19          }
  20      }
  21  
  22  	protected function cacheKey($ns, $key) {
  23          if(is_array($key)) $key = implode('-', $key);
  24          return $ns . '-' . $key;
  25      }
  26  
  27  	public function set($namespace, $key, $value) {
  28          $this->connection->set($this->cacheKey($namespace, $key), $value);
  29      }
  30  
  31  	public function get($namespace, $key) {
  32          return $this->connection->get($this->cacheKey($namespace, $key));
  33      }
  34  
  35  	public function has($namespace, $key) {
  36          return $this->get($namespace, $key) !== false;
  37      }
  38      
  39      public function flush(){
  40          $this->connection->flush(); 
  41  
  42          $time = time()+1; //one second future 
  43          while(time() < $time) { 
  44              //sleep 
  45          } 
  46      }
  47  
  48      public static function getInstance() {
  49          static $singleton = NULL;
  50          if ($singleton === NULL) {
  51              $singleton = new self();
  52          }
  53          return $singleton;
  54      }
  55  }