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<?php |
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namespace CloudFramework\Tool; |
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use CloudFramework\Exceptions\LoaderException; |
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use CloudFramework\Patterns\Singleton; |
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/** |
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* Class ConfigLoader |
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* @package CloudFramework\Core |
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*/ |
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class ConfigLoader extends Singleton |
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{ |
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private $config = array(); |
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public function __construct($configFilename = '') |
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{ |
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parent::__construct(); |
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$this->loadConfigFile($configFilename); |
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} |
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/** |
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* Create directory |
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* @param string $directory |
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* @return bool |
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*/ |
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public static function createDir($directory) |
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{ |
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return (false !== @mkdir($directory)); |
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} |
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/** |
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* Search config key and returns this value |
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* @param string $key |
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* @param array $config |
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* @return mixed |
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*/ |
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public function getConfigParam($key, $config = array()) |
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{ |
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$config = (count($config) == 0) ? $this->config : $config; |
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$value = null; |
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if (count($config) > 0) { |
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$configKey = explode(".", trim($key)); |
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$parentKey = reset($configKey); |
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$existsKeyInConfig = array_key_exists($parentKey, $config); |
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if (count($configKey) > 1 && $existsKeyInConfig) { |
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$value = $this->getConfigParam($this->getChildConfigKey($key), $config[$parentKey]); |
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} elseif ($existsKeyInConfig) { |
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$value = $config[$parentKey]; |
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} |
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} |
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return $value; |
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} |
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/** |
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* Extract child keys from parent config key |
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* @param string $key |
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* @return string |
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*/ |
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private function getChildConfigKey($key) |
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{ |
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$childKey = ''; |
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$dotPosition = strpos($key, '.'); |
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if (false !== $dotPosition) { |
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$childKey = substr($key, $dotPosition + 1, strlen($key) - $dotPosition); |
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} |
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return $childKey; |
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} |
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/** |
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* Set a config parameter |
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* @param string $key |
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* @param mixed $value |
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* @return \CloudFramework\ConfigLoader |
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*/ |
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public function setConfigParam($key, $value = null) |
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{ |
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$this->config = $this->setConfigValue($key, $value, $this->config); |
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return $this; |
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} |
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/** |
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* Recursive process that set a config value |
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* @param string $key |
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* @param mixed $value |
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* @param mixed $config |
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* @return array |
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*/ |
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private function setConfigValue($key, $value = null, $config = null) |
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{ |
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$keys = explode('.', $key); |
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if (count($keys) === 0) { |
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$keys = array($key); |
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} |
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$keyCount = count($keys); |
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$aux = $config; |
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foreach ($keys as $_key) { |
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$keyCount--; |
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if (!array_key_exists($_key, $aux)) { |
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$aux[$_key] = array(); |
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} |
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if ($keyCount > 0) { |
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$aux[$_key] = $this->setConfigValue($this->getChildConfigKey($key), $value, $aux[$_key]); |
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} else { |
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$aux[$_key] = $value; |
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} |
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break; |
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} |
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return $aux; |
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} |
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/** |
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* Reload config file |
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* @param $configFilename |
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* @throws \Exception |
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*/ |
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public function loadConfigFile($configFilename = '') |
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{ |
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if (strlen($configFilename) > 0 && file_exists($configFilename)) { |
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$this->config = array(); |
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} |
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} |
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} |
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CloudFramework-io /
CFCore
