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<?php |
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/** |
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* |
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* This file is part of the Apix Project. |
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* |
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* (c) Franck Cassedanne <franck at ouarz.net> |
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* |
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* @license http://opensource.org/licenses/BSD-3-Clause New BSD License |
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* |
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*/ |
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namespace Apix; |
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class Config implements \ArrayAccess |
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{ |
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/** |
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* Holds the config array. |
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* @var array |
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*/ |
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public $config = array(); |
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/** |
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* TEMP: Holds the singleton instance. |
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* @var Config |
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*/ |
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private static $instance = null; |
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/** |
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* TEMP: Returns as a singleton instance. |
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* |
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* @return Config |
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*/ |
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public static function getInstance($config=null) |
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{ |
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if (null === self::$instance) { |
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self::$instance = new self($config); |
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} |
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return self::$instance; |
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} |
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/** |
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* TEMP: disalow cloning. |
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* |
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* @codeCoverageIgnore |
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*/ |
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final private function __clone() {} |
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/** |
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* Initialises and sets the config property. |
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* |
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* @return Config |
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*/ |
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public function __construct($config=null) |
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{ |
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switch (true) { |
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case is_array($config): |
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// add from user provided array |
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break; |
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case is_string($config): |
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// add from a user file |
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$config = $this->getConfigFromFile($config); |
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break; |
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default: |
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// add from the HOME dir |
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// $file = getenv('HOME') . '/.apix/config.php'; |
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// if (file_exists($file)) { |
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// $config = $this->getConfigFromFile($file); |
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// } |
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// default to the distribution file |
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$config = null; |
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} |
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$this->setConfig($config); |
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} |
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/** |
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* Sets the config array from a file. |
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* |
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* @param string $file The full path to a configuration file. |
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* @throws \RuntimeException |
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* @return void; |
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*/ |
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public function getConfigFromFile($file) |
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{ |
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if (!is_file($file)) { |
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throw new \RuntimeException( |
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sprintf('The "%s" config file does not exist.', $file), |
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5000 |
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); |
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} |
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$config = require $file; |
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if (null === $config || !is_array($config)) { |
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throw new \RuntimeException( |
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sprintf('The "%s" config file must return an array.', $file), |
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5001 |
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); |
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} |
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return $config; |
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} |
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/** |
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* Sets the config property and merge the defaults. |
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* |
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* @param array $config=null |
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*/ |
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public function setConfig(array $config=null) |
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{ |
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$defaults = $this->getConfigDefaults(); |
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$this->config = null === $config ? $defaults : $config+$defaults; |
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} |
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/** |
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* Returns the config array. |
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* |
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* @return array |
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*/ |
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public function getConfig() |
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{ |
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return $this->config; |
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} |
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/** |
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* Returns the specified config value using its index key. If the index key |
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* is not set then it will return the whole config property. |
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* |
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* @param string $key=null The key to retrieve. |
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* @return mixed |
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* @throws \InvalidArgumentException |
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*/ |
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public function get($key=null) |
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{ |
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if (is_null($key)) { |
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return $this->getConfig(); |
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} elseif (isset($this->config[$key])) { |
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return $this->config[$key]; |
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} |
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throw new \InvalidArgumentException( |
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sprintf('Config for "%s" does not exists.', $key) |
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); |
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} |
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/** |
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* Sets as new a mixed value to a specified key. |
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* |
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* @param string $key The key to set. |
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* @param mixed $mix The mixed value to set. |
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*/ |
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public function set($key, $mix) |
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{ |
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$this->config[$key] = $mix; |
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} |
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/** |
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* Adds the mixed value to a specified key. |
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* |
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* @param string $key The key to add to. |
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* @param mixed $mix The mixed value to add. |
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*/ |
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public function add($key, $mix) |
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{ |
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$this->config[$key][] = $mix; |
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} |
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/** |
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* Returns the specified default config value using its index key. |
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* If the index key is not set then it will return the whole default config property. |
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* |
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* @param string $key=null The key to retrieve. |
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* @return mixed |
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* @throws \InvalidArgumentException |
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*/ |
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public function getDefault($key=null) |
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{ |
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if (is_null($key)) { |
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return $this->config['default']; |
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} elseif (isset($this->config['default'][$key])) { |
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return $this->config['default'][$key]; |
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} |
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throw new \InvalidArgumentException( |
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sprintf('Default config for "%s" does not exists.', $key) |
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); |
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} |
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/** |
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* Returns a specified sub-array type from config. |
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* If an index key is specified return the corresponding (mixed) value. |
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* |
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* @param string $type The sub-array type to retrieve. |
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* @param string $key=null A key to narrow the retrieval. |
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* @return mixed |
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* @throws \InvalidArgumentException |
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*/ |
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public function retrieve($type, $key=null) |
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{ |
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// TODO: will optimise this... |
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$config = isset($this->config['default'][$type]) |
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? $this->config[$type]+$this->getDefault($type) |
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: $this->config[$type]; |
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if (null === $key) { |
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return $config; |
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} elseif (isset($config[$key])) { |
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return $config[$key]; |
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} |
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throw new \RuntimeException( |
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sprintf('"%s" does not exists in "%s".', $key, $type) |
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); |
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} |
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/** |
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* Returns all the resources or as the specified. |
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* |
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* @param string $key=null The resource key to retrieve. |
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* @see self::retrieve |
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*/ |
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public function getResources($key=null) |
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{ |
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return $this->retrieve('resources', $key); |
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} |
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/** |
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* TEMP: Returns the default configuration. |
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* TODO: should use 'config.dist.php' |
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* |
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* @return array |
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*/ |
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public function getConfigDefaults() |
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{ |
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// $file = realpath(__DIR__ . '/../../data/distribution/config.dist.php'); |
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$file = __DIR__ . '/../../data/distribution/config.dist.php'; |
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return $this->getConfigFromFile($file); |
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} |
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/** |
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* Returns the specified service -- or all if unspecified. |
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* |
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* @param string $key=null The service key to retrieve. |
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* @see self::retrieve |
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* @return mixed Generally should return a callback |
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*/ |
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public function getServices($key=null, $args=null) |
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{ |
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$service = $this->retrieve('services', $key); |
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return is_callable($service) ? $service($args) : $service; |
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} |
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/** |
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* Sets the specified name, value as a service. |
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* |
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* @param string $name The service name to set. |
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* @param mixed $mix The corresponding value to set. |
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* @return void |
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*/ |
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public function setService($name, $mix) |
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{ |
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$this->config['services'][$name] = $mix; |
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} |
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/** |
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* {@inheritdoc} |
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* @link http://php.net/manual/en/arrayaccess.offsetexists.php |
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* @param mixed $offset - An offset to check for. |
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* @return boolean true on success or false on failure. |
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*/ |
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public function offsetExists($offset) |
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{ |
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return isset($this->config[$offset]); |
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} |
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/** |
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* {@inheritdoc} |
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* @link http://php.net/manual/en/arrayaccess.offsetget.php |
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* @param mixed $offset The offset to retrieve. |
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* @return mixed Can return all value types. |
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*/ |
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public function offsetGet($offset) |
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{ |
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return $this->config[$offset]; |
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} |
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/** |
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* {@inheritdoc} |
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* @link http://php.net/manual/en/arrayaccess.offsetset.php |
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* @param mixed $offset The offset to assign the value to. |
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* @param mixed $value The value to set. |
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* @return void |
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*/ |
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public function offsetSet($offset, $value) |
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{ |
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$this->config[$offset] = $value; |
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} |
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/** |
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* {@inheritdoc} |
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* @link http://php.net/manual/en/arrayaccess.offsetunset.php |
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* @param mixed $offset The offset to unset. |
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* @return void |
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*/ |
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public function offsetUnset($offset) |
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314
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{ |
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unset($this->config[$offset]); |
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} |
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318
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/* --- below obsolete --- */ |
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319
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320
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/** |
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321
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* TEMP: Holds the injected array. |
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322
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* @var array |
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323
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*/ |
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324
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private $injected; |
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325
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326
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/** |
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327
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* TEMP: Sets/injects a key/value pair in the injected array. |
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328
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* |
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329
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* @param string $key An index key to set. |
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330
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* @param mixed $value The value to inject. |
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331
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* @return void |
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332
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*/ |
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333
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public function inject($key, $value) |
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334
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{ |
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335
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$this->injected[$key] = $value; |
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336
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} |
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337
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338
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/** |
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339
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* TEMP: Returns the specified injected key. |
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340
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* |
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341
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* @param string $key The index key to retrieve. |
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342
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|
|
* @return mixed |
|
343
|
|
|
*/ |
|
344
|
|
|
public function getInjected($key) |
|
345
|
|
|
{ |
|
346
|
|
|
return $this->injected[$key]; |
|
347
|
|
|
} |
|
348
|
|
|
|
|
349
|
|
|
} |
|
350
|
|
|
|
Adding a
@returnannotation to a constructor is not recommended, since a constructor does not have a meaningful return value.Please refer to the PHP core documentation on constructors.