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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\Formatter; |
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use Graze\DataFile\Format\JsonFormatInterface; |
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use Graze\DataFile\Format\Processor\DateTimeProcessor; |
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use Graze\DataFile\Format\Processor\RowProcessor; |
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use Traversable; |
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class JsonFormatter implements FormatterInterface |
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{ |
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use RowProcessor; |
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use InvokeFormatter; |
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use TraversableTrait; |
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const JSON_ARRAY_START = '['; |
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const JSON_ARRAY_END = ']' . PHP_EOL; |
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const JSON_ARRAY_SEPARATOR = ',' . PHP_EOL; |
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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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* @var string |
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*/ |
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private $linePostfix; |
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/** |
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* @var int |
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*/ |
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private $encodeOptions; |
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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->addProcessor(new DateTimeProcessor()); |
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$this->format = $format; |
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$this->linePostfix = $format->isSingleBlock() ? static::JSON_ARRAY_SEPARATOR : PHP_EOL; |
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$this->encodeOptions = $format->getJsonEncodeOptions(); |
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// If the json is a blob on each line, turn off pretty print to ensure it is all on a single line |
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if ($format->isEachLine()) { |
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$this->encodeOptions &= ~JSON_PRETTY_PRINT; |
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} |
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} |
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/** |
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* @param array|Traversable $row |
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* |
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* @return string |
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*/ |
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public function format($row) |
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{ |
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$data = $this->getArray($row); |
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$data = $this->process($data); |
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return json_encode($data, $this->encodeOptions); |
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} |
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/** |
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* Return an initial block if required |
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* |
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* @return string |
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*/ |
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public function getInitialBlock() |
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{ |
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if ($this->format->isSingleBlock()) { |
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return static::JSON_ARRAY_START; |
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} else { |
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return ''; |
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} |
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} |
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/** |
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* Return a closing block if required |
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* |
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* @return string |
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*/ |
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public function getClosingBlock() |
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{ |
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if ($this->format->isSingleBlock()) { |
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return static::JSON_ARRAY_END; |
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} else { |
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return ''; |
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} |
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} |
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/** |
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* Get a separator between each row |
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* |
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* @return string |
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*/ |
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public function getRowSeparator() |
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{ |
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return $this->linePostfix; |
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} |
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} |
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graze /
data-file
