1: <?php
 2: /**
 3:  * A Horde_Injector based Horde_Share factory.
 4:  *
 5:  * @category Horde
 6:  * @package  Core
 7:  * @author   Michael J. Rubinsky <mrubinsk@horde.org>
 8:  */
 9: 
10: /**
11:  * A Horde_Injector based Horde_Share factory.
12:  *
13:  * Copyright 2010-2012 Horde LLC (http://www.horde.org/)
14:  *
15:  * See the enclosed file COPYING for license information (LGPL). If you
16:  * did not receive this file, see http://www.horde.org/licenses/lgpl21.
17:  *
18:  * @category Horde
19:  * @package  Core
20:  * @author   Michael J. Rubinsky <mrubinsk@horde.org>
21:  */
22: class Horde_Core_Factory_ShareBase extends Horde_Core_Factory_Base
23: {
24:     /**
25:      * Local cache of created share instances.
26:      *
27:      * @var array
28:      */
29:     protected $_instances = array();
30: 
31:     /**
32:      * Returns the share driver instance.
33:      *
34:      * @param string $app     The application scope of the share. If empty,
35:      *                        default to current application.
36:      * @param string $driver  The storage driver to use. If empty, use the
37:      *                        globally configured storage driver.
38:      *
39:      * @return Horde_Share_Base  The share driver instance.
40:      */
41:     public function create($app = null, $driver = null)
42:     {
43:         if (empty($driver)) {
44:             $driver = $GLOBALS['conf']['share']['driver'];
45:         }
46:         if (empty($app)) {
47:             $app = $this->_injector->getInstance('Horde_Registry')->getApp();
48:         }
49: 
50:         $sig = $app . '_' . $driver;
51:         if (isset($this->_instances[$sig])) {
52:             return $this->_instances[$sig];
53:         }
54: 
55:         $class = 'Horde_Share_' . ucfirst(basename($driver));
56:         if (!class_exists($class)) {
57:             throw new Horde_Exception(sprintf(Horde_Core_Translation::t("\"%s\" share driver not found."), $driver));
58:         }
59: 
60:         $ob = new $class($app, $GLOBALS['registry']->getAuth(), $this->_injector->getInstance('Horde_Perms'), $this->_injector->getInstance('Horde_Group'));
61:         $cb = new Horde_Core_Share_FactoryCallback($app, $driver);
62:         $ob->setShareCallback(array($cb, 'create'));
63:         $ob->setLogger($this->_injector->getInstance('Horde_Log_Logger'));
64:         if (!empty($GLOBALS['conf']['share']['cache'])) {
65:             $cache_sig = 'horde_share/' . $app . '/' . $driver;
66:             $listCache = $GLOBALS['session']->retrieve($cache_sig);
67:             $ob->setListCache($listCache);
68:             register_shutdown_function(array($this, 'shutdown'), $cache_sig, $ob);
69:         }
70: 
71:         $this->_instances[$sig] = $ob;
72: 
73:         return $ob;
74:     }
75: 
76:     /**
77:      * Shutdown function.
78:      *
79:      * @param string $sig              Cache signature.
80:      * @param Horde_Share_Base $share  Share object to cache.
81:      */
82:     public function shutdown($sig, $share)
83:     {
84:         $GLOBALS['session']->store($share->getListCache(), false, $sig);
85:     }
86: 
87: }
88: