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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 DateTime; |
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use Doctrine\Common\Annotations\AnnotationReader; |
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use InvalidArgumentException; |
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use LogicException; |
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use Psr\SimpleCache\CacheInterface; |
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use ReflectionProperty; |
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use Symfony\Component\Cache\Simple\ArrayCache; |
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use Symfony\Component\Cache\Simple\ChainCache; |
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use Symfony\Component\Cache\Simple\NullCache; |
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use Symfony\Component\Cache\Simple\PhpFilesCache; |
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use Tebru\AnnotationReader\AnnotationReaderAdapter; |
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use Tebru\Gson\Exclusion\DeserializationExclusionDataAware; |
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use Tebru\Gson\Exclusion\ExclusionStrategy; |
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use Tebru\Gson\Exclusion\SerializationExclusionDataAware; |
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use Tebru\Gson\ExclusionStrategy as DeprecatedExclusionStrategy; |
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use Tebru\Gson\Internal\AccessorMethodProvider; |
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use Tebru\Gson\Internal\AccessorStrategyFactory; |
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use Tebru\Gson\Internal\ConstructorConstructor; |
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use Tebru\Gson\Internal\Data\ClassMetadataFactory; |
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use Tebru\Gson\Internal\Data\ReflectionPropertySetFactory; |
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use Tebru\Gson\Internal\DiscriminatorDeserializer; |
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use Tebru\Gson\Internal\Excluder; |
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use Tebru\Gson\Internal\ExclusionStrategyAdapter; |
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use Tebru\Gson\Internal\Naming\DefaultPropertyNamingStrategy; |
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use Tebru\Gson\Internal\Naming\PropertyNamer; |
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use Tebru\Gson\Internal\Naming\UpperCaseMethodNamingStrategy; |
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use Tebru\Gson\Internal\TypeAdapter\Factory\ArrayTypeAdapterFactory; |
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use Tebru\Gson\Internal\TypeAdapter\Factory\BooleanTypeAdapterFactory; |
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use Tebru\Gson\Internal\TypeAdapter\Factory\CustomWrappedTypeAdapterFactory; |
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use Tebru\Gson\Internal\TypeAdapter\Factory\DateTimeTypeAdapterFactory; |
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use Tebru\Gson\Internal\TypeAdapter\Factory\FloatTypeAdapterFactory; |
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use Tebru\Gson\Internal\TypeAdapter\Factory\IntegerTypeAdapterFactory; |
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use Tebru\Gson\Internal\TypeAdapter\Factory\JsonElementTypeAdapterFactory; |
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use Tebru\Gson\Internal\TypeAdapter\Factory\NullTypeAdapterFactory; |
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use Tebru\Gson\Internal\TypeAdapter\Factory\ReflectionTypeAdapterFactory; |
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use Tebru\Gson\Internal\TypeAdapter\Factory\StringTypeAdapterFactory; |
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use Tebru\Gson\Internal\TypeAdapter\Factory\WildcardTypeAdapterFactory; |
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use Tebru\Gson\Internal\TypeAdapter\Factory\WrappedTypeAdapterFactory; |
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use Tebru\Gson\Internal\TypeAdapterProvider; |
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use Tebru\Gson\Internal\TypeTokenFactory; |
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use Tebru\PhpType\TypeToken; |
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/** |
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* Class GsonBuilder |
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* |
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* @author Nate Brunette <[email protected]> |
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*/ |
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class GsonBuilder |
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{ |
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/** |
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* Array of type adapter factories |
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* |
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* @var TypeAdapterFactory[] |
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*/ |
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private $typeAdapterFactories = []; |
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/** |
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* @var InstanceCreator[] |
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*/ |
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private $instanceCreators = []; |
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/** |
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* List of visitors to manipulate class metadata |
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* |
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* @var ClassMetadataVisitor[] |
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*/ |
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private $classMetadataVisitors = []; |
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/** |
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* Strategy for converting property names to serialized names |
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* |
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* @var PropertyNamingStrategy |
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*/ |
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private $propertyNamingStrategy; |
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/** |
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* Property naming policy |
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* |
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* Defaults to converting camel case to snake case |
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* |
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* @var string |
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*/ |
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private $propertyNamingPolicy = PropertyNamingPolicy::LOWER_CASE_WITH_UNDERSCORES; |
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/** |
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* Strategy for converting property names to method names |
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* |
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* @var MethodNamingStrategy |
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*/ |
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private $methodNamingStrategy; |
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/** |
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* The version that should be used with Since/Until annotations |
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* |
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* @var string |
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*/ |
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private $version; |
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/** |
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* Modifiers from [@see ReflectionProperty] that should be excluded |
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* |
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* @var int |
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*/ |
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private $excludedModifiers = ReflectionProperty::IS_STATIC; |
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/** |
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* True if the [@see Expose] annotation is required for serialization/deserialization |
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* |
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* @var bool |
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*/ |
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private $requireExpose = false; |
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/** |
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* An array of [@see ExclusionStrategy] objects |
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* |
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* @var ExclusionStrategy[] |
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*/ |
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private $exclusionStrategies = []; |
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/** |
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* An array of Cacheable [@see ExclusionStrategy] objects |
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* |
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* @var ExclusionStrategy[] |
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*/ |
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private $cachedExclusionStrategies = []; |
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/** |
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* If we should serialize nulls, defaults to false |
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* |
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* @var bool |
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*/ |
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private $serializeNull = false; |
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/** |
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* Default format for DateTimes |
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* |
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* @var string |
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*/ |
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private $dateTimeFormat = DateTime::ATOM; |
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/** |
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* A cache interface to be used in place of defaults |
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* |
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* If this is set, [@see GsonBuilder::$enableCache] will be ignored |
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* |
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* @var CacheInterface |
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*/ |
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private $cache; |
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/** |
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* True if we should be caching |
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* |
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* @var bool |
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*/ |
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private $enableCache = false; |
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/** |
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* Cache directory, if set this enabled filesystem caching |
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* |
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* @var string |
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*/ |
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private $cacheDir; |
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/** |
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* Add a custom type adapter |
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* |
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* @param TypeAdapterFactory $typeAdapterFactory |
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* @return GsonBuilder |
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*/ |
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public function addTypeAdapterFactory(TypeAdapterFactory $typeAdapterFactory): GsonBuilder |
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{ |
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$this->typeAdapterFactories[] = $typeAdapterFactory; |
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return $this; |
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} |
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/** |
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* Adds a [@see Discriminator] as a type adapter factory |
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* |
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* @param string $type |
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* @param Discriminator $discriminator |
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* @return GsonBuilder |
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*/ |
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public function addDiscriminator(string $type, Discriminator $discriminator): GsonBuilder |
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{ |
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$this->typeAdapterFactories[] = new CustomWrappedTypeAdapterFactory( |
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TypeToken::create($type), |
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true, |
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null, |
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new DiscriminatorDeserializer($discriminator) |
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); |
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return $this; |
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} |
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/** |
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* Add custom handling for a specific type |
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* |
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* Handler objects may be of types: TypeAdapter, JsonSerializer, or JsonDeserializer. Passing |
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* $strict=true will match the specified type exactly, as opposed to checking anywhere in the |
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* inheritance chain. |
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* |
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* @param string $type |
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* @param $handler |
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* @param bool $strict |
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* @return GsonBuilder |
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*/ |
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public function registerType(string $type, $handler, bool $strict = false): GsonBuilder |
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{ |
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if ($handler instanceof TypeAdapter) { |
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$this->typeAdapterFactories[] = new WrappedTypeAdapterFactory($handler, TypeToken::create($type), $strict); |
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return $this; |
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} |
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if ($handler instanceof JsonSerializer && $handler instanceof JsonDeserializer) { |
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$this->typeAdapterFactories[] = new CustomWrappedTypeAdapterFactory(TypeToken::create($type), $strict, $handler, $handler); |
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return $this; |
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} |
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if ($handler instanceof JsonSerializer) { |
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$this->typeAdapterFactories[] = new CustomWrappedTypeAdapterFactory(TypeToken::create($type), $strict, $handler); |
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return $this; |
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} |
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if ($handler instanceof JsonDeserializer) { |
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$this->typeAdapterFactories[] = new CustomWrappedTypeAdapterFactory(TypeToken::create($type), $strict, null, $handler); |
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return $this; |
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} |
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throw new InvalidArgumentException(\sprintf('Handler of type "%s" is not supported', \get_class($handler))); |
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} |
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/** |
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* Add an [@see InstanceCreator] for a given type |
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* |
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* @param string $type |
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* @param InstanceCreator $instanceCreator |
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* @return GsonBuilder |
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*/ |
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public function addInstanceCreator(string $type, InstanceCreator $instanceCreator): GsonBuilder |
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{ |
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$phpType = TypeToken::create($type); |
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$this->instanceCreators[$phpType->getRawType()] = $instanceCreator; |
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return $this; |
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} |
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public function addClassMetadataVisitor(ClassMetadataVisitor $propertyCollectionVisitor): GsonBuilder |
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{ |
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$this->classMetadataVisitors[] = $propertyCollectionVisitor; |
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return $this; |
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} |
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/** |
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* Set the version to be used with [@see Since] and [@see Until] annotations |
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* |
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* @param string $version |
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* @return GsonBuilder |
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*/ |
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public function setVersion(string $version): GsonBuilder |
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{ |
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$this->version = $version; |
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return $this; |
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} |
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/** |
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* Set the property modifiers that should be excluded based on [@see \ReflectionProperty] |
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* |
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* This number is a bitmap, so ReflectionProperty::IS_STATIC will exclude all static properties. |
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* Likewise, passing (ReflectionProperty::IS_STATIC | ReflectionProperty::IS_PRIVATE) will exclude |
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* all static and private properties. |
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* |
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* @param int $modifiers |
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* @return GsonBuilder |
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*/ |
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public function setExcludedModifier(int $modifiers): GsonBuilder |
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{ |
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$this->excludedModifiers = $modifiers; |
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return $this; |
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} |
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/** |
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* Require the [@see Expose] annotation to serialize or deserialize property |
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* |
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* @return GsonBuilder |
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*/ |
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public function requireExposeAnnotation(): GsonBuilder |
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{ |
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$this->requireExpose = true; |
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return $this; |
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} |
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/** |
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* Add an exclusion strategy that should be used during serialization/deserialization |
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* |
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* @param DeprecatedExclusionStrategy $strategy |
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* @param bool $serialization |
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* @param bool $deserialization |
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* @return GsonBuilder |
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* @deprecated Since v0.6.0 to be removed in v0.7.0. Use GsonBuilder::addExclusion() instead. |
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*/ |
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public function addExclusionStrategy(DeprecatedExclusionStrategy $strategy, bool $serialization, bool $deserialization): GsonBuilder |
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{ |
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@trigger_error('Gson: GsonBuilder::addExclusionStrategy() is deprecated since v0.6.0 and will be removed in v0.7.0. Use GsonBuilder::addExclusion() instead.', E_USER_DEPRECATED); |
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$this->addExclusion(new ExclusionStrategyAdapter($strategy, $serialization, $deserialization)); |
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return $this; |
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} |
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/** |
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* Add an [@see ExclusionStrategy] |
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* |
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* @param ExclusionStrategy $exclusionStrategy |
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* @return GsonBuilder |
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*/ |
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public function addExclusion(ExclusionStrategy $exclusionStrategy): GsonBuilder |
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{ |
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if (!$exclusionStrategy->shouldCache()) { |
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$this->exclusionStrategies[] = $exclusionStrategy; |
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return $this; |
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} |
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if ( |
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$exclusionStrategy instanceof SerializationExclusionDataAware |
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|| $exclusionStrategy instanceof DeserializationExclusionDataAware |
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) { |
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throw new LogicException('Gson: Cacheable exclusion strategies must not implement *DataAware interfaces'); |
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} |
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$this->cachedExclusionStrategies[] = $exclusionStrategy; |
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return $this; |
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} |
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/** |
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* Set a custom property naming strategy |
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* |
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* @param PropertyNamingStrategy $propertyNamingStrategy |
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* @return GsonBuilder |
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*/ |
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public function setPropertyNamingStrategy(PropertyNamingStrategy $propertyNamingStrategy): GsonBuilder |
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{ |
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$this->propertyNamingStrategy = $propertyNamingStrategy; |
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return $this; |
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} |
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/** |
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* Set one of [@see PropertyNamingPolicy] |
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* |
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* @param string $policy |
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* @return GsonBuilder |
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*/ |
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public function setPropertyNamingPolicy(string $policy): GsonBuilder |
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{ |
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$this->propertyNamingPolicy = $policy; |
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return $this; |
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} |
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|
|
380
|
|
|
/** |
381
|
|
|
* Set a custom method naming strategy |
382
|
|
|
* |
383
|
|
|
* @param MethodNamingStrategy $methodNamingStrategy |
384
|
|
|
* @return GsonBuilder |
385
|
|
|
*/ |
386
|
|
|
public function setMethodNamingStrategy(MethodNamingStrategy $methodNamingStrategy): GsonBuilder |
387
|
|
|
{ |
388
|
|
|
$this->methodNamingStrategy = $methodNamingStrategy; |
389
|
|
|
|
390
|
|
|
return $this; |
391
|
|
|
} |
392
|
|
|
|
393
|
|
|
/** |
394
|
|
|
* Set whether we should serialize null |
395
|
|
|
* |
396
|
|
|
* @return GsonBuilder |
397
|
|
|
*/ |
398
|
|
|
public function serializeNull(): GsonBuilder |
399
|
|
|
{ |
400
|
|
|
$this->serializeNull = true; |
401
|
|
|
|
402
|
|
|
return $this; |
403
|
|
|
} |
404
|
|
|
|
405
|
|
|
/** |
406
|
|
|
* Set the default datetime format |
407
|
|
|
* |
408
|
|
|
* @param string $format |
409
|
|
|
* @return GsonBuilder |
410
|
|
|
*/ |
411
|
|
|
public function setDateTimeFormat(string $format): GsonBuilder |
412
|
|
|
{ |
413
|
|
|
$this->dateTimeFormat = $format; |
414
|
|
|
|
415
|
|
|
return $this; |
416
|
|
|
} |
417
|
|
|
|
418
|
|
|
/** |
419
|
|
|
* Override default cache adapters |
420
|
|
|
* |
421
|
|
|
* @param CacheInterface $cache |
422
|
|
|
* @return GsonBuilder |
423
|
|
|
*/ |
424
|
|
|
public function setCache(CacheInterface $cache): GsonBuilder |
425
|
|
|
{ |
426
|
|
|
$this->cache = $cache; |
427
|
|
|
|
428
|
|
|
return $this; |
429
|
|
|
} |
430
|
|
|
|
431
|
|
|
|
432
|
|
|
/** |
433
|
|
|
* Set whether caching is enabled |
434
|
|
|
* |
435
|
|
|
* @param bool $enableCache |
436
|
|
|
* @return GsonBuilder |
437
|
|
|
*/ |
438
|
|
|
public function enableCache(bool $enableCache): GsonBuilder |
439
|
|
|
{ |
440
|
|
|
$this->enableCache = $enableCache; |
441
|
|
|
|
442
|
|
|
return $this; |
443
|
|
|
} |
444
|
|
|
|
445
|
|
|
/** |
446
|
|
|
* Setting a cache directory will turn on filesystem caching |
447
|
|
|
* |
448
|
|
|
* @param string $cacheDir |
449
|
|
|
* @return GsonBuilder |
450
|
|
|
*/ |
451
|
|
|
public function setCacheDir(string $cacheDir): GsonBuilder |
452
|
|
|
{ |
453
|
|
|
$this->cacheDir = $cacheDir.'/gson'; |
454
|
|
|
|
455
|
|
|
return $this; |
456
|
|
|
} |
457
|
|
|
|
458
|
|
|
/** |
459
|
|
|
* Builds a new [@see Gson] object based on configuration set |
460
|
|
|
* |
461
|
|
|
* @return Gson |
462
|
|
|
* @throws \LogicException |
463
|
|
|
*/ |
464
|
|
|
public function build(): Gson |
465
|
|
|
{ |
466
|
|
|
if (null === $this->cacheDir && true === $this->enableCache) { |
467
|
|
|
throw new LogicException('Cannot enable cache without a cache directory'); |
468
|
|
|
} |
469
|
|
|
|
470
|
|
|
$propertyNamingStrategy = $this->propertyNamingStrategy ?? new DefaultPropertyNamingStrategy($this->propertyNamingPolicy); |
471
|
|
|
$methodNamingStrategy = $this->methodNamingStrategy ?? new UpperCaseMethodNamingStrategy(); |
472
|
|
|
|
473
|
|
|
if ($this->cache === null) { |
474
|
|
|
$this->cache = false === $this->enableCache |
475
|
|
|
? new ArrayCache(0, false) |
476
|
|
|
: new ChainCache([new ArrayCache(0, false), new PhpFilesCache('', 0, $this->cacheDir)]); |
477
|
|
|
} |
478
|
|
|
|
479
|
|
|
// no need to cache the annotations as they get cached with the class/properties |
480
|
|
|
$annotationReader = new AnnotationReaderAdapter(new AnnotationReader(), new NullCache()); |
481
|
|
|
$excluder = new Excluder(); |
482
|
|
|
$excluder->setVersion($this->version); |
483
|
|
|
$excluder->setExcludedModifiers($this->excludedModifiers); |
484
|
|
|
$excluder->setRequireExpose($this->requireExpose); |
485
|
|
|
|
486
|
|
|
foreach ($this->exclusionStrategies as $strategy) { |
487
|
|
|
$excluder->addExclusionStrategy($strategy); |
488
|
|
|
} |
489
|
|
|
|
490
|
|
|
foreach ($this->cachedExclusionStrategies as $strategy) { |
491
|
|
|
$excluder->addCachedExclusionStrategy($strategy); |
492
|
|
|
} |
493
|
|
|
|
494
|
|
|
$classMetadataFactory = new ClassMetadataFactory( |
495
|
|
|
new ReflectionPropertySetFactory(), |
496
|
|
|
$annotationReader, |
497
|
|
|
new PropertyNamer($propertyNamingStrategy), |
498
|
|
|
new AccessorMethodProvider($methodNamingStrategy), |
499
|
|
|
new AccessorStrategyFactory(), |
500
|
|
|
new TypeTokenFactory(), |
501
|
|
|
$excluder, |
502
|
|
|
$this->cache |
503
|
|
|
); |
504
|
|
|
$constructorConstructor = new ConstructorConstructor($this->instanceCreators); |
505
|
|
|
$typeAdapterProvider = new TypeAdapterProvider( |
506
|
|
|
$this->getTypeAdapterFactories($classMetadataFactory, $excluder, $constructorConstructor), |
507
|
|
|
$constructorConstructor |
508
|
|
|
); |
509
|
|
|
|
510
|
|
|
return new Gson($typeAdapterProvider, $this->serializeNull); |
511
|
|
|
} |
512
|
|
|
|
513
|
|
|
/** |
514
|
|
|
* Merges default factories with user provided factories |
515
|
|
|
* |
516
|
|
|
* @param ClassMetadataFactory $classMetadataFactory |
517
|
|
|
* @param Excluder $excluder |
518
|
|
|
* @param ConstructorConstructor $constructorConstructor |
519
|
|
|
* @return array|TypeAdapterFactory[] |
520
|
|
|
*/ |
521
|
|
|
private function getTypeAdapterFactories( |
522
|
|
|
ClassMetadataFactory $classMetadataFactory, |
523
|
|
|
Excluder $excluder, |
524
|
|
|
ConstructorConstructor $constructorConstructor |
525
|
|
|
): array { |
526
|
|
|
return \array_merge( |
527
|
|
|
$this->typeAdapterFactories, |
528
|
|
|
[ |
529
|
|
|
new StringTypeAdapterFactory(), |
530
|
|
|
new IntegerTypeAdapterFactory(), |
531
|
|
|
new FloatTypeAdapterFactory(), |
532
|
|
|
new BooleanTypeAdapterFactory(), |
533
|
|
|
new NullTypeAdapterFactory(), |
534
|
|
|
new DateTimeTypeAdapterFactory($this->dateTimeFormat), |
535
|
|
|
new ArrayTypeAdapterFactory(), |
536
|
|
|
new JsonElementTypeAdapterFactory(), |
537
|
|
|
new ReflectionTypeAdapterFactory( |
538
|
|
|
$constructorConstructor, |
539
|
|
|
$classMetadataFactory, |
540
|
|
|
$excluder, |
541
|
|
|
$this->classMetadataVisitors, |
542
|
|
|
), |
543
|
|
|
new WildcardTypeAdapterFactory(), |
544
|
|
|
] |
545
|
|
|
); |
546
|
|
|
} |
547
|
|
|
} |
548
|
|
|
|
Let?s assume that you have a directory layout like this:
and let?s assume the following content of
Bar.php
:If both files
OtherDir/Foo.php
andSomeDir/Foo.php
are loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php
However, as
OtherDir/Foo.php
does not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php
, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: