1: <?php
2: // Author: Trabis
3: // URL: http://www.xuups.com
4: // E-Mail: lusopoemas@gmail.com
5:
6: defined('XOOPS_ROOT_PATH') || exit('XOOPS root path not defined');
7:
8: /**
9: * Class ProtectorRegistry
10: */
11: class ProtectorRegistry
12: {
13: public $_entries;
14: public $_locks;
15:
16: /**
17: * ProtectorRegistry constructor.
18: */
19: protected function __construct()
20: {
21: $this->_entries = array();
22: $this->_locks = array();
23: }
24:
25: /**
26: * @return ProtectorRegistry
27: */
28: public static function getInstance()
29: {
30: static $instance = false;
31: if (!$instance) {
32: $instance = new ProtectorRegistry();
33: }
34:
35: return $instance;
36: }
37:
38: /**
39: * @param $key
40: * @param $item
41: *
42: * @return bool
43: */
44: public function setEntry($key, $item)
45: {
46: if ($this->isLocked($key) == true) {
47: trigger_error('Unable to set entry `' . $key . '`. Entry is locked.', E_USER_WARNING);
48:
49: return false;
50: }
51:
52: $this->_entries[$key] = $item;
53:
54: return true;
55: }
56:
57: /**
58: * @param $key
59: */
60: public function unsetEntry($key)
61: {
62: unset($this->_entries[$key]);
63: }
64:
65: /**
66: * @param $key
67: *
68: * @return null
69: */
70: public function getEntry($key)
71: {
72: if (isset($this->_entries[$key]) == false) {
73: return null;
74: }
75:
76: return $this->_entries[$key];
77: }
78:
79: /**
80: * @param $key
81: *
82: * @return bool
83: */
84: public function isEntry($key)
85: {
86: return ($this->getEntry($key) !== null);
87: }
88:
89: /**
90: * @param $key
91: *
92: * @return bool
93: */
94: public function lockEntry($key)
95: {
96: $this->_locks[$key] = true;
97:
98: return true;
99: }
100:
101: /**
102: * @param $key
103: */
104: public function unlockEntry($key)
105: {
106: unset($this->_locks[$key]);
107: }
108:
109: /**
110: * @param $key
111: *
112: * @return bool
113: */
114: public function isLocked($key)
115: {
116: return (isset($this->_locks[$key]) == true);
117: }
118:
119: public function unsetAll()
120: {
121: $this->_entries = array();
122: $this->_locks = array();
123: }
124: }
125: