| 1: | <?php |
| 2: | // Author: Trabis |
| 3: | // URL: https://xoops.org |
| 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: |