tnhfw /
tnh-fw
| Total Complexity | 82 |
| Total Lines | 493 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like Loader often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Loader, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 26 | class Loader{ |
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| 27 | |||
| 28 | /** |
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| 29 | * List of loaded resources |
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| 30 | * @var array |
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| 31 | */ |
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| 32 | public static $loaded = array(); |
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| 33 | |||
| 34 | /** |
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| 35 | * The logger instance |
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| 36 | * @var Log |
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| 37 | */ |
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| 38 | private static $logger; |
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| 39 | |||
| 40 | |||
| 41 | public function __construct(){ |
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| 42 | //add the resources already loaded during application bootstrap |
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| 43 | //in the list to prevent duplicate or loading the resources again. |
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| 44 | static::$loaded = class_loaded(); |
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| 45 | |||
| 46 | //Load resources from autoload configuration |
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| 47 | $this->loadResourcesFromAutoloadConfig(); |
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| 48 | } |
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| 49 | |||
| 50 | /** |
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| 51 | * Get the logger singleton instance |
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| 52 | * @return Log the logger instance |
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| 53 | */ |
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| 54 | private static function getLogger(){ |
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| 55 | if(self::$logger == null){ |
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| 56 | self::$logger[0] =& class_loader('Log', 'classes'); |
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| 57 | self::$logger[0]->setLogger('Library::Loader'); |
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| 58 | } |
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| 59 | return self::$logger[0]; |
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| 60 | } |
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| 61 | |||
| 62 | /** |
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| 63 | * Load the model class |
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| 64 | * |
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| 65 | * @param string $class the class name to be loaded |
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| 66 | * @param string $instance the name of the instance to use in super object |
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| 67 | * |
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| 68 | * @return void |
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| 69 | */ |
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| 70 | public static function model($class, $instance = null){ |
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| 71 | $logger = static::getLogger(); |
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| 72 | $class = str_ireplace('.php', '', $class); |
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| 73 | $class = trim($class, '/\\'); |
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| 74 | $file = ucfirst($class).'.php'; |
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| 75 | $logger->debug('Loading model [' . $class . '] ...'); |
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| 76 | if(! $instance){ |
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| 77 | //for module |
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| 78 | if(strpos($class, '/') !== false){ |
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| 79 | $path = explode('/', $class); |
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| 80 | if(isset($path[1])){ |
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| 81 | $instance = strtolower($path[1]); |
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| 82 | } |
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| 83 | } |
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| 84 | else{ |
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| 85 | $instance = strtolower($class); |
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| 86 | } |
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| 87 | } |
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| 88 | if(isset(static::$loaded[$instance])){ |
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| 89 | $logger->info('Model [' . $class . '] already loaded no need to load it again, cost in performance'); |
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| 90 | return; |
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| 91 | } |
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| 92 | $classFilePath = APPS_MODEL_PATH . $file; |
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| 93 | //first check if this model is in the module |
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| 94 | $logger->debug('Checking model [' . $class . '] from module list ...'); |
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| 95 | $searchModuleName = null; |
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| 96 | $obj = & get_instance(); |
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| 97 | //check if the request class contains module name |
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| 98 | if(strpos($class, '/') !== false){ |
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| 99 | $path = explode('/', $class); |
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| 100 | if(isset($path[0]) && in_array($path[0], Module::getModuleList())){ |
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| 101 | $searchModuleName = $path[0]; |
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| 102 | $class = ucfirst($path[1]); |
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| 103 | } |
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| 104 | } |
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| 105 | else{ |
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| 106 | $class = ucfirst($class); |
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| 107 | } |
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| 108 | |||
| 109 | if(! $searchModuleName && !empty($obj->moduleName)){ |
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| 110 | $searchModuleName = $obj->moduleName; |
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| 111 | } |
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| 112 | $moduleModelFilePath = Module::findModelFullPath($class, $searchModuleName); |
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| 113 | if($moduleModelFilePath){ |
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| 114 | $logger->info('Found model [' . $class . '] from module [' .$searchModuleName. '], the file path is [' .$moduleModelFilePath. '] we will used it'); |
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| 115 | $classFilePath = $moduleModelFilePath; |
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| 116 | } |
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| 117 | else{ |
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| 118 | $logger->info('Cannot find model [' . $class . '] from modules using the default location'); |
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| 119 | } |
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| 120 | $logger->info('The model file path to be loaded is [' . $classFilePath . ']'); |
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| 121 | if(file_exists($classFilePath)){ |
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| 122 | require_once $classFilePath; |
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| 123 | if(class_exists($class)){ |
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| 124 | $c = new $class(); |
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| 125 | $obj = & get_instance(); |
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| 126 | $obj->{$instance} = $c; |
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| 127 | static::$loaded[$instance] = $class; |
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| 128 | $logger->info('Model [' . $class . '] --> ' . $classFilePath . ' loaded successfully.'); |
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| 129 | } |
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| 130 | else{ |
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| 131 | show_error('The file '.$classFilePath.' exists but does not contain the class ['. $class . ']'); |
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| 132 | } |
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| 133 | } |
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| 134 | else{ |
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| 135 | show_error('Unable to find the model [' . $class . ']'); |
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| 136 | } |
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| 137 | } |
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| 138 | |||
| 139 | |||
| 140 | /** |
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| 141 | * Load the library class |
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| 142 | * |
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| 143 | * @param string $class the library class name to be loaded |
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| 144 | * @param string $instance the instance name to use in super object |
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| 145 | * @param mixed $params the arguments to pass to the constructor |
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| 146 | * |
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| 147 | * @return void |
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| 148 | */ |
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| 149 | public static function library($class, $instance = null, array $params = array()){ |
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| 243 | } |
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| 244 | } |
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| 245 | |||
| 246 | /** |
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| 247 | * Load the helper |
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| 248 | * |
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| 249 | * @param string $function the helper name to be loaded |
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| 250 | * |
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| 251 | * @return void |
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| 252 | */ |
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| 253 | public static function functions($function){ |
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| 308 | } |
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| 309 | } |
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| 310 | |||
| 311 | /** |
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| 312 | * Load the configuration file |
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| 313 | * |
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| 314 | * @param string $filename the configuration filename located at CONFIG_PATH or MODULE_PATH/config |
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| 315 | * |
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| 316 | * @return void |
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| 317 | */ |
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| 318 | public static function config($filename){ |
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| 319 | $logger = static::getLogger(); |
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| 320 | $filename = str_ireplace('.php', '', $filename); |
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| 321 | $filename = trim($filename, '/\\'); |
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| 322 | $filename = str_ireplace('config_', '', $filename); |
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| 323 | $file = 'config_'.$filename.'.php'; |
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| 324 | $logger->debug('Loading configuration [' . $filename . '] ...'); |
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| 325 | if(isset(static::$loaded['config_' . $filename])){ |
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| 326 | $logger->info('Configuration [' . $file . '] already loaded no need to load it again, cost in performance'); |
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| 327 | return; |
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| 328 | } |
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| 329 | $configFilePath = CONFIG_PATH . $file; |
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| 330 | //first check if this config is in the module |
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| 331 | $logger->debug('Checking config [' . $filename . '] from module list ...'); |
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| 332 | $searchModuleName = null; |
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| 333 | $obj = & get_instance(); |
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| 334 | //check if the request class contains module name |
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| 335 | if(strpos($filename, '/') !== false){ |
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| 336 | $path = explode('/', $filename); |
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| 337 | if(isset($path[0]) && in_array($path[0], Module::getModuleList())){ |
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| 338 | $searchModuleName = $path[0]; |
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| 339 | $filename = $path[1] . '.php'; |
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| 340 | } |
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| 341 | } |
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| 342 | if(! $searchModuleName && !empty($obj->moduleName)){ |
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| 343 | $searchModuleName = $obj->moduleName; |
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| 344 | } |
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| 345 | $moduleConfigPath = Module::findConfigFullPath($filename, $searchModuleName); |
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| 346 | if($moduleConfigPath){ |
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| 347 | $logger->info('Found config [' . $filename . '] from module [' .$searchModuleName. '], the file path is [' .$moduleConfigPath. '] we will used it'); |
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| 348 | $configFilePath = $moduleConfigPath; |
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| 349 | } |
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| 350 | else{ |
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| 351 | $logger->info('Cannot find config [' . $filename . '] from modules using the default location'); |
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| 352 | } |
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| 353 | $logger->info('The config file path to be loaded is [' . $configFilePath . ']'); |
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| 354 | $config = array(); |
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| 355 | if(file_exists($configFilePath)){ |
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| 356 | require_once $configFilePath; |
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| 357 | if(! empty($config) && is_array($config)){ |
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| 358 | Config::setAll($config); |
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| 359 | } |
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| 360 | } |
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| 361 | else{ |
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| 362 | show_error('Unable to find config file ['. $configFilePath . ']'); |
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| 363 | } |
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| 364 | static::$loaded['config_' . $filename] = $configFilePath; |
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| 365 | $logger->info('Configuration [' . $configFilePath . '] loaded successfully.'); |
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| 366 | $logger->info('The custom application configuration loaded are listed below: ' . stringfy_vars($config)); |
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| 367 | unset($config); |
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| 368 | } |
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| 369 | |||
| 370 | |||
| 371 | /** |
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| 372 | * Load the language |
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| 373 | * |
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| 374 | * @param string $language the language name to be loaded |
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| 375 | * |
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| 376 | * @return void |
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| 377 | */ |
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| 378 | public static function lang($language){ |
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| 379 | $logger = static::getLogger(); |
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| 380 | $language = str_ireplace('.php', '', $language); |
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| 381 | $language = trim($language, '/\\'); |
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| 382 | $language = str_ireplace('lang_', '', $language); |
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| 383 | $file = 'lang_'.$language.'.php'; |
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| 384 | $logger->debug('Loading language [' . $language . '] ...'); |
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| 385 | if(isset(static::$loaded['lang_' . $language])){ |
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| 386 | $logger->info('Language [' . $language . '] already loaded no need to load it again, cost in performance'); |
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| 387 | return; |
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| 388 | } |
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| 389 | //determine the current language |
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| 390 | $appLang = get_config('default_language'); |
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| 391 | //if the language exists in the cookie use it |
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| 392 | $cfgKey = get_config('language_cookie_name'); |
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| 393 | $objCookie = & class_loader('Cookie'); |
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| 394 | $cookieLang = $objCookie->get($cfgKey); |
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| 395 | if($cookieLang){ |
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| 396 | $appLang = $cookieLang; |
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| 397 | } |
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| 398 | $languageFilePath = null; |
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| 399 | //first check if this language is in the module |
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| 400 | $logger->debug('Checking language [' . $language . '] from module list ...'); |
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| 401 | $searchModuleName = null; |
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| 402 | $obj = & get_instance(); |
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| 403 | //check if the request class contains module name |
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| 404 | if(strpos($language, '/') !== false){ |
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| 405 | $path = explode('/', $language); |
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| 406 | if(isset($path[0]) && in_array($path[0], Module::getModuleList())){ |
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| 407 | $searchModuleName = $path[0]; |
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| 408 | $language = 'lang_' . $path[1] . '.php'; |
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| 409 | $file = $path[0] . DS .$language; |
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| 410 | } |
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| 411 | } |
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| 412 | if(! $searchModuleName && !empty($obj->moduleName)){ |
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| 413 | $searchModuleName = $obj->moduleName; |
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| 414 | } |
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| 415 | $moduleLanguagePath = Module::findLanguageFullPath($language, $searchModuleName, $appLang); |
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| 416 | if($moduleLanguagePath){ |
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| 417 | $logger->info('Found language [' . $language . '] from module [' .$searchModuleName. '], the file path is [' .$moduleLanguagePath. '] we will used it'); |
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| 418 | $languageFilePath = $moduleLanguagePath; |
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| 419 | } |
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| 420 | else{ |
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| 421 | $logger->info('Cannot find language [' . $language . '] from modules using the default location'); |
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| 422 | } |
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| 423 | if(! $languageFilePath){ |
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| 424 | $searchDir = array(APP_LANG_PATH, CORE_LANG_PATH); |
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| 425 | foreach($searchDir as $dir){ |
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| 426 | $filePath = $dir . $appLang . DS . $file; |
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| 427 | if(file_exists($filePath)){ |
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| 428 | $languageFilePath = $filePath; |
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| 429 | //is already found not to continue |
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| 430 | break; |
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| 431 | } |
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| 432 | } |
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| 433 | } |
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| 434 | $logger->info('The language file path to be loaded is [' . $languageFilePath . ']'); |
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| 435 | if($languageFilePath){ |
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| 436 | $lang = array(); |
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| 437 | require_once $languageFilePath; |
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| 438 | if(! empty($lang) && is_array($lang)){ |
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| 439 | $logger->info('Language file [' .$languageFilePath. '] contains the valid languages keys add them to language list'); |
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| 440 | //Note: may be here the class 'Lang' not yet loaded |
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| 441 | $langObj =& class_loader('Lang', 'classes'); |
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| 442 | $langObj->addLangMessages($lang); |
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| 443 | //free the memory |
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| 444 | unset($lang); |
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| 445 | } |
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| 446 | static::$loaded['lang_' . $language] = $languageFilePath; |
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| 447 | $logger->info('Language [' . $language . '] --> ' . $languageFilePath . ' loaded successfully.'); |
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| 448 | } |
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| 449 | else{ |
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| 450 | show_error('Unable to find language file [' . $file . ']'); |
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| 451 | } |
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| 452 | } |
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| 453 | |||
| 454 | |||
| 455 | private function getResourcesFromAutoloadConfig(){ |
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| 477 | } |
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| 478 | |||
| 479 | /** |
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| 480 | * Load the autoload configuration |
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| 481 | * @return void |
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| 482 | */ |
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| 483 | private function loadResourcesFromAutoloadConfig(){ |
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| 484 | $autoloads = array(); |
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| 485 | $autoloads['config'] = array(); |
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| 486 | $autoloads['languages'] = array(); |
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| 487 | $autoloads['libraries'] = array(); |
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| 488 | $autoloads['models'] = array(); |
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| 489 | $autoloads['functions'] = array(); |
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| 490 | |||
| 491 | $list = $this->getResourcesFromAutoloadConfig(); |
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| 492 | $autoloads = array_merge($autoloads, $list); |
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| 493 | |||
| 494 | //config autoload |
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| 495 | $this->loadAutoloadResourcesArray('config', $autoloads['config']); |
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| 496 | |||
| 497 | //languages autoload |
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| 498 | $this->loadAutoloadResourcesArray('lang', $autoloads['languages']); |
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| 499 | |||
| 500 | //libraries autoload |
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| 501 | $this->loadAutoloadResourcesArray('library', $autoloads['libraries']); |
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| 502 | |||
| 503 | //models autoload |
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| 504 | $this->loadAutoloadResourcesArray('model', $autoloads['models']); |
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| 505 | |||
| 506 | //functions autoload |
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| 507 | $this->loadAutoloadResourcesArray('functions', $autoloads['functions']); |
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| 508 | } |
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| 509 | |||
| 510 | /** |
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| 511 | * Load the resources autoload array |
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| 512 | * @param string $method this object method name to call |
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| 513 | * @param array $resources the resource to load |
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| 514 | * @return void |
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| 515 | */ |
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| 516 | private function loadAutoloadResourcesArray($method, array $resources){ |
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| 519 | } |
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| 520 | } |
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| 522 |
