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<?php |
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namespace Cerbero\JsonObjects; |
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use Exception; |
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use JsonStreamingParser\Parser; |
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use Cerbero\JsonObjects\Listeners\AbstractListener; |
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use Cerbero\JsonObjects\Listeners\ChunkListener; |
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use Cerbero\JsonObjects\Listeners\ObjectListener; |
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/** |
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* The JSON objects main class. |
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* |
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*/ |
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class JsonObjects |
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{ |
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/** |
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* The JSON stream. |
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* |
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* @var resource |
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*/ |
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protected $stream; |
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/** |
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* The key containing the JSON objects. |
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* |
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* @var string|null |
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*/ |
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protected $key; |
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/** |
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* Set the dependencies. |
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* |
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* @param resource|string $source |
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* @param string|null $key |
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* |
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* @throws JsonObjectsException |
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*/ |
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public function __construct($source, string $key = null) |
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{ |
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$this->stream = (new DataStreaming())->streamData($source); |
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$this->key = $key; |
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} |
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/** |
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* Create a new instance while easing method chaining |
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* |
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* @param resource|string $source |
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* @param string|null $key |
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* @return self |
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* |
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* @throws JsonObjectsException |
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*/ |
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public static function from($source, string $key = null): self |
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{ |
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return new static($source, $key); |
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} |
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/** |
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* Process each JSON object separately |
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* |
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* @param callable $callback |
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* @return void |
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* |
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* @throws JsonObjectsException |
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*/ |
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public function each(callable $callback): void |
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{ |
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$this->parseStreamWithListener(new ObjectListener($callback)); |
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} |
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/** |
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* Parse the JSON stream with the given listener |
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* |
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* @param AbstractListener $listener |
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* @return void |
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* |
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* @throws JsonObjectsException |
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*/ |
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protected function parseStreamWithListener(AbstractListener $listener): void |
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{ |
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if ($this->key !== null) { |
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$listener->setTargetFromKey($this->key); |
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} |
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try { |
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(new Parser($this->stream, $listener))->parse(); |
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} catch (Exception $e) { |
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throw new JsonObjectsException($e->getMessage()); |
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} finally { |
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extension_loaded('zlib') ? gzclose($this->stream) : fclose($this->stream); |
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} |
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1 |
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} |
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/** |
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* Process JSON objects in chunks |
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* |
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* @param int $size |
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* @param callable $callback |
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* @return void |
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* |
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* @throws JsonObjectsException |
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*/ |
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public function chunk(int $size, callable $callback): void |
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{ |
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$this->parseStreamWithListener(new ChunkListener($size, $callback)); |
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} |
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} |
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cerbero90 /
json-objects
