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<?php |
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/** |
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* This file is part of graze/data-file |
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* |
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* Copyright (c) 2016 Nature Delivered Ltd. <https://www.graze.com> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* @license https://github.com/graze/data-file/blob/master/LICENSE.md |
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* @link https://github.com/graze/data-file |
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*/ |
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namespace Graze\DataFile\Format\Parser; |
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use ArrayIterator; |
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use Graze\DataFile\Format\JsonFormatInterface; |
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use Graze\DataFile\Helper\LineStreamIterator; |
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use Graze\DataFile\Helper\MapIterator; |
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use Iterator; |
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use Psr\Http\Message\StreamInterface; |
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use RuntimeException; |
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class JsonParser implements ParserInterface |
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{ |
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const JSON_DEFAULT_DEPTH = 512; |
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/** |
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* @var JsonFormatInterface |
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*/ |
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private $format; |
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/** |
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* JsonFormatter constructor. |
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* |
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* @param JsonFormatInterface $format |
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*/ |
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public function __construct(JsonFormatInterface $format) |
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{ |
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$this->format = $format; |
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} |
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/** |
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* @param StreamInterface $stream |
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* |
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* @return Iterator |
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*/ |
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public function parse(StreamInterface $stream) |
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{ |
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if ($this->format->isEachLine()) { |
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$iterator = new LineStreamIterator( |
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$stream, |
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[ |
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LineStreamIterator::OPTION_ENDING => "\n", |
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LineStreamIterator::OPTION_IGNORE_BLANK => $this->format->isIgnoreBlankLines(), |
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LineStreamIterator::OPTION_INCLUDE_ENDING => false, |
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] |
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); |
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$iterator->setIgnoreBlank($this->format->isIgnoreBlankLines()); |
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return new MapIterator($iterator, [$this, 'decodeJson']); |
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} else { |
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$json = $this->decodeJson($stream->getContents()); |
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if (is_array($json)) { |
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return new ArrayIterator($json); |
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} else { |
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throw new RuntimeException("Expecting a json array to parse, unknown format detected"); |
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} |
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} |
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} |
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/** |
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* @param string $string |
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* |
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* @return mixed |
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*/ |
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public function decodeJson($string) |
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{ |
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return json_decode( |
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$string, |
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$this->format->isJsonDecodeAssoc(), |
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static::JSON_DEFAULT_DEPTH, |
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$this->format->getJsonDecodeOptions() |
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); |
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} |
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} |
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graze /
data-file
