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<?php |
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/** |
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* Spiral Framework. |
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* |
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* @license MIT |
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* @author Anton Titov (Wolfy-J) |
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*/ |
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namespace Spiral\Core; |
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use Spiral\Core\Exceptions\ConfigException; |
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/** |
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* Generic implementation of array based configuration. |
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* |
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* Attention! Config has to be serialiable and be depdended ONLY on enviroment or runtime |
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* modifications/requests. No custom logic is allowed to initiate config, in other case config cache |
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* will be invalid. |
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*/ |
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class InjectableConfig extends Component implements ConfigInterface, \ArrayAccess, \IteratorAggregate |
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{ |
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/** |
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* Spiral provides ability to automatically inject configs using configurator. |
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*/ |
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const INJECTOR = ConfiguratorInterface::class; |
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/** |
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* Configuration data. |
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* |
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* @var array |
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*/ |
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protected $config = []; |
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/** |
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* At this moment on array based configs can be supported. |
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* |
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* @param array $config |
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*/ |
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final public function __construct(array $config = []) |
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{ |
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$this->config = $config; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function toArray() |
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{ |
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return $this->config; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function offsetExists($offset) |
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{ |
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return array_key_exists($offset, $this->config); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function offsetGet($offset) |
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{ |
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if (!$this->offsetExists($offset)) { |
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throw new ConfigException("Undefined configuration key '{$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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* |
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* @throws ConfigException |
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*/ |
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public function offsetSet($offset, $value) |
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{ |
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throw new ConfigException( |
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"Unable to change configuration data, configs are treated as immutable." |
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); |
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} |
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/** |
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*{@inheritdoc} |
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* |
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* @throws ConfigException |
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*/ |
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public function offsetUnset($offset) |
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{ |
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throw new ConfigException( |
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"Unable to change configuration data, configs are treated as immutable." |
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); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getIterator() |
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{ |
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return new \ArrayIterator($this->config); |
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} |
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/** |
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* Restoring state. |
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* |
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* @param array $an_array |
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* @return static |
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*/ |
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public static function __set_state($an_array) |
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{ |
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return new static($an_array['config']); |
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} |
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} |
spiral /
components
