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<?php |
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/* |
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* This file is part of the slince/spike package. |
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* |
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* (c) Slince <[email protected]> |
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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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namespace Spike\Common\Protocol; |
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/** |
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* {@link https://github.com/clue/php-json-stream/blob/master/src/StreamingJsonParser.php}. |
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*/ |
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class StreamingJsonParser |
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{ |
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private $buffer = ''; |
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private $endCharacter = null; |
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private $assoc = true; |
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public function push($chunk) |
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{ |
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$objects = array(); |
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while ('' !== $chunk) { |
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if (null === $this->endCharacter) { |
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// trim leading whitespace |
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$chunk = ltrim($chunk); |
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if ('' === $chunk) { |
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// only whitespace => skip chunk |
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break; |
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} elseif ('[' === $chunk[0]) { |
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// array/list delimiter |
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$this->endCharacter = ']'; |
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} elseif ('{' === $chunk[0]) { |
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// object/hash delimiter |
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$this->endCharacter = '}'; |
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} |
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} |
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$pos = strpos($chunk, $this->endCharacter); |
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// no end found in chunk => must be part of segment, wait for next chunk |
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if (false === $pos) { |
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$this->buffer .= $chunk; |
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break; |
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} |
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// possible end found in chunk => select possible segment from buffer, keep remaining chunk |
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$this->buffer .= substr($chunk, 0, $pos + 1); |
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$chunk = substr($chunk, $pos + 1); |
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// try to parse |
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$json = json_decode($this->buffer, $this->assoc); |
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// successfully parsed |
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if (null !== $json) { |
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$objects[] = $json; |
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// clear parsed buffer and continue checking remaining chunk |
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$this->buffer = ''; |
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$this->endCharacter = null; |
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} |
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} |
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return $objects; |
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} |
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public function isEmpty() |
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{ |
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return '' === $this->buffer; |
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} |
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/** |
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* Get the reset of data. |
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* |
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* @return string |
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*/ |
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public function getRemainingChunk() |
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{ |
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return $this->buffer; |
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} |
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} |
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slince /
spike
