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<?php |
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/* |
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* Copyright (c) Nate Brunette. |
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* Distributed under the MIT License (http://opensource.org/licenses/MIT) |
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*/ |
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declare(strict_types=1); |
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namespace Tebru\Gson; |
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use Tebru\Gson\Context\ReaderContext; |
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use Tebru\Gson\Context\WriterContext; |
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use Tebru\Gson\Internal\ObjectConstructor\CreateFromInstance; |
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use Tebru\Gson\Internal\ObjectConstructorAware; |
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use Tebru\Gson\Internal\TypeAdapterProvider; |
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use Tebru\PhpType\TypeToken; |
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/** |
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* Class Gson |
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* |
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* @author Nate Brunette <[email protected]> |
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*/ |
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class Gson |
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{ |
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/** |
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* A service to fetch the correct [@see TypeAdapter] for a given type |
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* |
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* @var TypeAdapterProvider |
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*/ |
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private $typeAdapterProvider; |
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/** |
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* @var ReaderContext |
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*/ |
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private $readerContext; |
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/** |
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* @var WriterContext |
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*/ |
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private $writerContext; |
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/** |
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* Constructor |
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* |
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* @param TypeAdapterProvider $typeAdapterProvider |
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* @param ReaderContext $readerContext |
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* @param WriterContext $writerContext |
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*/ |
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public function __construct( |
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TypeAdapterProvider $typeAdapterProvider, |
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ReaderContext $readerContext, |
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WriterContext $writerContext |
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) { |
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$this->typeAdapterProvider = $typeAdapterProvider; |
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$this->readerContext = $readerContext; |
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$this->writerContext = $writerContext; |
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} |
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/** |
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* Create a new builder object |
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* |
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* @return GsonBuilder |
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*/ |
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public static function builder(): GsonBuilder |
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{ |
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return new GsonBuilder(); |
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} |
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/** |
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* Convenience method to convert an object to normalized data |
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* |
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* Optionally accepts a type to force serialization to |
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* |
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* @param mixed $object |
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* @param null|string $type |
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* @return mixed |
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*/ |
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public function toNormalized($object, ?string $type = null) |
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{ |
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if (is_scalar($object) && !$this->writerContext->enableScalarAdapters()) { |
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return $object; |
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} |
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$typeToken = $type === null ? TypeToken::createFromVariable($object) : TypeToken::create($type); |
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$typeAdapter = $this->typeAdapterProvider->getAdapter($typeToken); |
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return $typeAdapter->write($object, $this->writerContext); |
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} |
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/** |
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* Converts an object to a json string |
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* |
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* Optionally accepts a type to force serialization to |
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* |
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* @param mixed $object |
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* @param null|string $type |
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* @return string |
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*/ |
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public function toJson($object, ?string $type = null): string |
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{ |
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return json_encode($this->toNormalized($object, $type)); |
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} |
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/** |
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* Converts a normalized data to a valid json type |
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* |
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* @param mixed $decodedJson |
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* @param object|string $type |
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* @return mixed |
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*/ |
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public function fromNormalized($decodedJson, $type) |
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{ |
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if (is_scalar($decodedJson) && !$this->readerContext->enableScalarAdapters()) { |
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return $decodedJson; |
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} |
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$isObject = is_object($type); |
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$typeToken = $isObject ? TypeToken::create(get_class($type)) : TypeToken::create($type); |
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$typeAdapter = $this->typeAdapterProvider->getAdapter($typeToken); |
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$this->readerContext->setUsesExistingObject($isObject); |
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$this->readerContext->setPayload($decodedJson); |
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if ($isObject && $typeAdapter instanceof ObjectConstructorAware) { |
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$typeAdapter->setObjectConstructor(new CreateFromInstance($type)); |
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} |
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return $typeAdapter->read($decodedJson, $this->readerContext); |
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} |
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/** |
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* Converts a json string to a valid json type |
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* |
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* @param string $json |
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* @param object|string $type |
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* @return mixed |
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*/ |
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public function fromJson(string $json, $type) |
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{ |
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return $this->fromNormalized(json_decode($json, true), $type); |
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} |
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} |
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tebru /
gson-php
