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<?php |
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namespace PSFS\base; |
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use PSFS\base\config\Config; |
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use PSFS\base\types\SingletonTrait; |
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/** |
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* Class Singleton |
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* @package PSFS\base |
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*/ |
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class Singleton |
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{ |
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use SingletonTrait; |
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/** |
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* @var bool Flag that indicated if the class is already loaded |
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*/ |
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protected $loaded = false; |
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public function __construct() |
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{ |
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Logger::log(get_class($this) . ' constructor invoked'); |
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} |
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/** |
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* prevent the instance from being cloned |
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* |
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* @return void |
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*/ |
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private function __clone() |
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{ |
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} |
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/** |
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* prevent from being unserialized |
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* |
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* @return void |
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*/ |
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private function __wakeup() |
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{ |
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} |
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/** |
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* Magic setter |
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* @param $variable |
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* @param $value |
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*/ |
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public function __set($variable, $value) |
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{ |
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if (property_exists(get_class($this), $variable)) { |
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$this->$variable = $value; |
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} |
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} |
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/** |
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* Magic getter |
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* @param string $variable |
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* @return $mixed |
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*/ |
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public function __get($variable) |
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{ |
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return property_exists(get_class($this), $variable) ? $this->$variable : null; |
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} |
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/** |
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* Método que devuelve si una clase está isntanciada correctamente |
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* @return bool |
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*/ |
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public function isLoaded() |
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{ |
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return $this->loaded; |
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} |
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/** |
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* Método que configura como cargada una clase |
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* @param bool $loaded |
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*/ |
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public function setLoaded($loaded = true) |
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{ |
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$this->loaded = $loaded; |
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} |
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/** |
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* HELPERS |
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*/ |
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/** |
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* Método que extrae el nombre de la clase |
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* @return string |
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*/ |
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public function getShortName() |
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{ |
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$reflector = new \ReflectionClass(get_class($this)); |
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return $reflector->getShortName(); |
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} |
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/** |
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* Dependency inyector service invoker |
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* @param string $variable |
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* @param bool $singleton |
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* @param string $classNameSpace |
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* @return $this |
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*/ |
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public function load($variable, $singleton = true, $classNameSpace = null) |
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{ |
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$calledClass = get_called_class(); |
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try { |
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$instance = $this->constructInyectableInstance($variable, $singleton, $classNameSpace, $calledClass); |
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$setter = "set" . ucfirst($variable); |
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if (method_exists($calledClass, $setter)) { |
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$this->$setter($instance); |
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} else { |
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$this->$variable = $instance; |
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} |
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} catch (\Exception $e) { |
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Logger::log($e->getMessage() . ': ' . $e->getFile() . ' [' . $e->getLine() . ']', LOG_ERR); |
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} |
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return $this; |
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} |
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/** |
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* Método que inyecta automáticamente las dependencias en la clase |
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*/ |
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public function init() |
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{ |
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if (!$this->isLoaded()) { |
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$cacheFilename = "reflections" . DIRECTORY_SEPARATOR . sha1(get_class($this)) . ".json"; |
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/** @var \PSFS\base\Cache $cacheService */ |
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$cacheService = Cache::getInstance(); |
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/** @var \PSFS\base\config\Config $configService */ |
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$configService = Config::getInstance(); |
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$properties = $cacheService->getDataFromFile($cacheFilename, Cache::JSON); |
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if (true === $configService->getDebugMode() || null === $properties) { |
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$properties = $this->getClassProperties(); |
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$cacheService->storeData($cacheFilename, $properties, Cache::JSON); |
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} |
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/** @var \ReflectionProperty $property */ |
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if (!empty($properties) && is_array($properties)) foreach ($properties as $property => $class) { |
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$this->load($property, true, $class); |
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} |
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$this->setLoaded(); |
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} else { |
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Logger::log(get_class($this) . ' already loaded', LOG_INFO); |
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} |
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} |
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/** |
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* Método que extrae todas las propiedades inyectables de una clase |
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* @param null $class |
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* @return array |
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*/ |
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private function getClassProperties($class = null) |
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{ |
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$properties = array(); |
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if (null === $class) { |
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$class = get_class($this); |
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} |
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Logger::log('Extracting annotations properties from class ' . $class); |
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$selfReflector = new \ReflectionClass($class); |
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if (false !== $selfReflector->getParentClass()) { |
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$properties = $this->getClassProperties($selfReflector->getParentClass()->getName()); |
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} |
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View Code Duplication |
foreach ($selfReflector->getProperties(\ReflectionProperty::IS_PROTECTED) as $property) { |
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$doc = $property->getDocComment(); |
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if (preg_match('/@Inyectable/im', $doc)) { |
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$instanceType = $this->extractVarType($property->getDocComment()); |
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if (null !== $instanceType) { |
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$properties[$property->getName()] = $instanceType; |
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} |
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} |
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} |
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return $properties; |
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} |
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/** |
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* Método que extrae el tipo de instancia de la variable |
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* @param $doc |
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* @return null|string |
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*/ |
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private function extractVarType($doc) |
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{ |
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$type = null; |
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if (false !== preg_match('/@var\s+([^\s]+)/', $doc, $matches)) { |
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list(, $type) = $matches; |
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} |
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return $type; |
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} |
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/** |
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* Create the depecency injected |
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* @param string $variable |
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* @param bool $singleton |
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* @param string $classNameSpace |
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* @param string $calledClass |
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* @return mixed |
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*/ |
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private function constructInyectableInstance($variable, $singleton, $classNameSpace, $calledClass) |
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{ |
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Logger::log('Create inyectable instance for ' . $classNameSpace . ' into ' . get_class($this)); |
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$reflector = new \ReflectionClass($calledClass); |
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$property = $reflector->getProperty($variable); |
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$varInstanceType = (null === $classNameSpace) ? $this->extractVarType($property->getDocComment()) : $classNameSpace; |
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if (true === $singleton && method_exists($varInstanceType, "getInstance")) { |
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$instance = $varInstanceType::getInstance(); |
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} else { |
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$instance = new $varInstanceType(); |
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} |
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return $instance; |
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} |
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} |
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psfs /
core
Loading history...
Our type inference engine in quite powerful, but sometimes the code does not provide enough clues to go by. In these cases we request you to add a
@returnannotation as described here.