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<?php |
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namespace Hal\Application\Config\File; |
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use Hal\Application\Config\Config; |
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use RecursiveArrayIterator; |
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use RecursiveIteratorIterator; |
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class ConfigFileReaderJson implements ConfigFileReaderInterface |
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{ |
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/** |
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* @var string |
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*/ |
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private $filename; |
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/** |
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* ConfigFileReaderJson constructor. |
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*/ |
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public function __construct($filename) |
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{ |
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$this->filename = $filename; |
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} |
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/** |
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* @param Config $config |
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* |
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* @return void |
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*/ |
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public function read(Config $config) |
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{ |
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$jsonText = file_get_contents($this->filename); |
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if (false === $jsonText) { |
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throw new \InvalidArgumentException("Cannot read configuration file '{$this->filename}'"); |
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} |
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$jsonData = json_decode($jsonText, true); |
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if (false === $jsonData) { |
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throw new \InvalidArgumentException("Bad json file '{$this->filename}'"); |
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} |
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$jsonDataImploded = $this->collapseArray($jsonData); |
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foreach ($jsonDataImploded as $key => $value) { |
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$config->set($key, $value); |
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} |
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} |
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/** |
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* Collapses array into a one-dimensional one by imploding nested keys with '-' |
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* |
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* @param array $arr |
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* |
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* @return array |
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*/ |
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private function collapseArray(array $arr) |
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{ |
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$iterator = new RecursiveIteratorIterator(new RecursiveArrayIterator($arr)); |
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$result = []; |
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foreach ($iterator as $leafValue) { |
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$keys = []; |
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foreach (range(0, $iterator->getDepth()) as $depth) { |
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$keys[] = $iterator->getSubIterator($depth)->key(); |
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} |
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$result[join('-', $keys)] = $leafValue; |
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} |
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return $result; |
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} |
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} |
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phpmetrics /
PhpMetrics
