GsonBuilder::build() - Code Metrics - Inspection of "Splitting ExclusionStrategy into multiple interfac..." - tebru/gson-php - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#28)

by Nate

created 2018-08-08 00:03 UTC

GsonBuilder::build() B

↳ Parent: GsonBuilder

Complexity

Conditions	7
Paths	13

Size

Total Lines	47
Code Lines	31

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	32
CRAP Score	7

Importance

Changes

Metric	Value
cc	7
eloc	31
nc	13
nop	0
dl	0
loc	47
ccs	32
cts	32
cp	1
crap	7
rs	8.4906
c	0
b	0
f	0

<?php
/*
 * Copyright (c) Nate Brunette.
 * Distributed under the MIT License (http://opensource.org/licenses/MIT)
 */

declare(strict_types=1);

namespace Tebru\Gson;

use DateTime;
use Doctrine\Common\Annotations\AnnotationReader;
use InvalidArgumentException;
use LogicException;
use Psr\SimpleCache\CacheInterface;
use ReflectionProperty;
use Symfony\Component\Cache\Simple\ArrayCache;
use Symfony\Component\Cache\Simple\ChainCache;
use Symfony\Component\Cache\Simple\NullCache;
use Symfony\Component\Cache\Simple\PhpFilesCache;
use Tebru\AnnotationReader\AnnotationReaderAdapter;
use Tebru\Gson\Exclusion\DeserializationExclusionDataAware;
use Tebru\Gson\Exclusion\ExclusionStrategy;
.
|-- OtherDir
|   |-- Bar.php
|   `-- Foo.php
`-- SomeDir
    `-- Foo.php
use Tebru\Gson\Exclusion\SerializationExclusionDataAware;
use Tebru\Gson\ExclusionStrategy as DeprecatedExclusionStrategy;
use Tebru\Gson\Internal\AccessorMethodProvider;
use Tebru\Gson\Internal\AccessorStrategyFactory;
use Tebru\Gson\Internal\ConstructorConstructor;
use Tebru\Gson\Internal\Data\ClassMetadataFactory;
use Tebru\Gson\Internal\Data\ReflectionPropertySetFactory;
use Tebru\Gson\Internal\DiscriminatorDeserializer;
use Tebru\Gson\Internal\Excluder;
use Tebru\Gson\Internal\ExclusionStrategyAdapter;
use Tebru\Gson\Internal\Naming\DefaultPropertyNamingStrategy;
use Tebru\Gson\Internal\Naming\PropertyNamer;
use Tebru\Gson\Internal\Naming\UpperCaseMethodNamingStrategy;
use Tebru\Gson\Internal\PhpTypeFactory;
use Tebru\Gson\Internal\TypeAdapter\Factory\ArrayTypeAdapterFactory;
use Tebru\Gson\Internal\TypeAdapter\Factory\BooleanTypeAdapterFactory;
use Tebru\Gson\Internal\TypeAdapter\Factory\CustomWrappedTypeAdapterFactory;
use Tebru\Gson\Internal\TypeAdapter\Factory\DateTimeTypeAdapterFactory;
use Tebru\Gson\Internal\TypeAdapter\Factory\FloatTypeAdapterFactory;
use Tebru\Gson\Internal\TypeAdapter\Factory\IntegerTypeAdapterFactory;
use Tebru\Gson\Internal\TypeAdapter\Factory\JsonElementTypeAdapterFactory;
use Tebru\Gson\Internal\TypeAdapter\Factory\NullTypeAdapterFactory;
use Tebru\Gson\Internal\TypeAdapter\Factory\ReflectionTypeAdapterFactory;
use Tebru\Gson\Internal\TypeAdapter\Factory\StringTypeAdapterFactory;
use Tebru\Gson\Internal\TypeAdapter\Factory\WildcardTypeAdapterFactory;
use Tebru\Gson\Internal\TypeAdapter\Factory\WrappedTypeAdapterFactory;
use Tebru\Gson\Internal\TypeAdapterProvider;
use Tebru\PhpType\TypeToken;

/**
 * Class GsonBuilder
 *
 * @author Nate Brunette <[email protected]>
 */
class GsonBuilder
{
    /**
     * Array of type adapter factories
     *
     * @var TypeAdapterFactory[]
     */
    private $typeAdapterFactories = [];

    /**
     * @var InstanceCreator[]
     */
    private $instanceCreators = [];

    /**
     * Strategy for converting property names to serialized names
     *
     * @var PropertyNamingStrategy
     */
    private $propertyNamingStrategy;

    /**
     * Property naming policy
     *
     * Defaults to converting camel case to snake case
     *
     * @var string
     */
    private $propertyNamingPolicy = PropertyNamingPolicy::LOWER_CASE_WITH_UNDERSCORES;

    /**
     * Strategy for converting property names to method names
     *
     * @var MethodNamingStrategy
     */
    private $methodNamingStrategy;

    /**
     * The version that should be used with Since/Until annotations
     *
     * @var string
     */
    private $version;

    /**
     * Modifiers from [@see ReflectionProperty] that should be excluded
     *
     * @var int
     */
    private $excludedModifiers = ReflectionProperty::IS_STATIC;

    /**
     * True if the [@see Expose] annotation is required for serialization/deserialization
     *
     * @var bool
     */
    private $requireExpose = false;

    /**
     * An array of [@see ExclusionStrategy] objects
     *
     * @var ExclusionStrategy[]
     */
    private $exclusionStrategies = [];

    /**
     * An array of Cacheable [@see ExclusionStrategy] objects
     *
     * @var ExclusionStrategy[]
     */
    private $cachedExclusionStrategies = [];

    /**
     * If we should serialize nulls, defaults to false
     *
     * @var bool
     */
    private $serializeNull = false;

    /**
     * Default format for DateTimes
     *
     * @var string
     */
    private $dateTimeFormat = DateTime::ATOM;

    /**
     * A cache interface to be used in place of defaults
     *
     * If this is set, [@see GsonBuilder::$enableCache] will be ignored
     *
     * @var CacheInterface
     */
    private $cache;

    /**
     * True if we should be caching
     *
     * @var bool
     */
    private $enableCache = false;

    /**
     * Cache directory, if set this enabled filesystem caching
     *
     * @var string
     */
    private $cacheDir;

    /**
     * Add a custom type adapter
     *
     * @param TypeAdapterFactory $typeAdapterFactory
     * @return GsonBuilder
     */
    public function addTypeAdapterFactory(TypeAdapterFactory $typeAdapterFactory): GsonBuilder
    {
        $this->typeAdapterFactories[] = $typeAdapterFactory;

        return $this;
    }

    /**
     * Adds a [@see Discriminator] as a type adapter factory
     *
     * @param string $type
     * @param Discriminator $discriminator
     * @return GsonBuilder
     */
    public function addDiscriminator(string $type, Discriminator $discriminator): GsonBuilder
    {
        $this->typeAdapterFactories[] = new CustomWrappedTypeAdapterFactory(
            TypeToken::create($type),
            true,
            null,
            new DiscriminatorDeserializer($discriminator)
        );

        return $this;
    }

    /**
     * Add custom handling for a specific type
     *
     * Handler objects may be of types: TypeAdapter, JsonSerializer, or JsonDeserializer. Passing
     * $strict=true will match the specified type exactly, as opposed to checking anywhere in the
     * inheritance chain.
     *
     * @param string $type
     * @param $handler
     * @param bool $strict
     * @return GsonBuilder
     */
    public function registerType(string $type, $handler, bool $strict = false): GsonBuilder
    {
        if ($handler instanceof TypeAdapter) {
            $this->typeAdapterFactories[] = new WrappedTypeAdapterFactory($handler, TypeToken::create($type), $strict);

            return $this;
        }

        if ($handler instanceof JsonSerializer && $handler instanceof JsonDeserializer) {
            $this->typeAdapterFactories[] = new CustomWrappedTypeAdapterFactory(TypeToken::create($type), $strict, $handler, $handler);

            return $this;
        }

        if ($handler instanceof JsonSerializer) {
            $this->typeAdapterFactories[] = new CustomWrappedTypeAdapterFactory(TypeToken::create($type), $strict, $handler);

            return $this;
        }

        if ($handler instanceof JsonDeserializer) {
            $this->typeAdapterFactories[] = new CustomWrappedTypeAdapterFactory(TypeToken::create($type), $strict, null, $handler);

            return $this;
        }

        throw new InvalidArgumentException(\sprintf('Handler of type "%s" is not supported', \get_class($handler)));
    }

    /**
     * Add an [@see InstanceCreator] for a given type
     *
     * @param string $type
     * @param InstanceCreator $instanceCreator
     * @return GsonBuilder
     */
    public function addInstanceCreator(string $type, InstanceCreator $instanceCreator): GsonBuilder
    {
        $phpType = TypeToken::create($type);
        $this->instanceCreators[$phpType->getRawType()] = $instanceCreator;

        return $this;
    }

    /**
     * Set the version to be used with [@see Since] and [@see Until] annotations
     *
     * @param string $version
     * @return GsonBuilder
     */
    public function setVersion(string $version): GsonBuilder
    {
        $this->version = $version;

        return $this;
    }

    /**
     * Set the property modifiers that should be excluded based on [@see \ReflectionProperty]
     *
     * This number is a bitmap, so ReflectionProperty::IS_STATIC will exclude all static properties.
     * Likewise, passing (ReflectionProperty::IS_STATIC | ReflectionProperty::IS_PRIVATE) will exclude
     * all static and private properties.
     *
     * @param int $modifiers
     * @return GsonBuilder
     */
    public function setExcludedModifier(int $modifiers): GsonBuilder
    {
        $this->excludedModifiers = $modifiers;

        return $this;
    }

    /**
     * Require the [@see Expose] annotation to serialize or deserialize property
     *
     * @return GsonBuilder
     */
    public function requireExposeAnnotation(): GsonBuilder
    {
        $this->requireExpose = true;

        return $this;
    }

    /**
     * Add an exclusion strategy that should be used during serialization/deserialization
     *
     * @param DeprecatedExclusionStrategy $strategy
     * @param bool $serialization
     * @param bool $deserialization
     * @return GsonBuilder
     * @deprecated Since v0.6.0 to be removed in v0.7.0. Use GsonBuilder::addExclusion() instead.
     */
    public function addExclusionStrategy(DeprecatedExclusionStrategy $strategy, bool $serialization, bool $deserialization): GsonBuilder
    {
        @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);

        $this->addExclusion(new ExclusionStrategyAdapter($strategy, $serialization, $deserialization));

        return $this;
    }

    /**
     * Add an [@see ExclusionStrategy]
     *
     * @param ExclusionStrategy $exclusionStrategy
     * @return GsonBuilder
     */
    public function addExclusion(ExclusionStrategy $exclusionStrategy): GsonBuilder
    {
        if (!$exclusionStrategy->shouldCache()) {
            $this->exclusionStrategies[] = $exclusionStrategy;
            return $this;
        }

        if (
            $exclusionStrategy instanceof SerializationExclusionDataAware
            || $exclusionStrategy instanceof DeserializationExclusionDataAware
        ) {
            throw new LogicException('Gson: Cacheable exclusion strategies must not implement *DataAware interfaces');
        }

        $this->cachedExclusionStrategies[] = $exclusionStrategy;

        return $this;
    }

    /**
     * Set a custom property naming strategy
     *
     * @param PropertyNamingStrategy $propertyNamingStrategy
     * @return GsonBuilder
     */
    public function setPropertyNamingStrategy(PropertyNamingStrategy $propertyNamingStrategy): GsonBuilder
    {
        $this->propertyNamingStrategy = $propertyNamingStrategy;

        return $this;
    }

    /**
     * Set one of [@see PropertyNamingPolicy]
     *
     * @param string $policy
     * @return GsonBuilder
     */
    public function setPropertyNamingPolicy(string $policy): GsonBuilder
    {
        $this->propertyNamingPolicy = $policy;

        return $this;
    }

    /**
     * Set a custom method naming strategy
     *
     * @param MethodNamingStrategy $methodNamingStrategy
     * @return GsonBuilder
     */
    public function setMethodNamingStrategy(MethodNamingStrategy $methodNamingStrategy): GsonBuilder
    {
        $this->methodNamingStrategy = $methodNamingStrategy;

        return $this;
    }

    /**
     * Set whether we should serialize null
     *
     * @return GsonBuilder
     */
    public function serializeNull(): GsonBuilder
    {
        $this->serializeNull = true;

        return $this;
    }

    /**
     * Set the default datetime format
     *
     * @param string $format
     * @return GsonBuilder
     */
    public function setDateTimeFormat(string $format): GsonBuilder
    {
        $this->dateTimeFormat = $format;

        return $this;
    }

    /**
     * Override default cache adapters
     *
     * @param CacheInterface $cache
     * @return GsonBuilder
     */
    public function setCache(CacheInterface $cache): GsonBuilder
    {
        $this->cache = $cache;

        return $this;
    }


    /**
     * Set whether caching is enabled
     *
     * @param bool $enableCache
     * @return GsonBuilder
     */
    public function enableCache(bool $enableCache): GsonBuilder
    {
        $this->enableCache = $enableCache;

        return $this;
    }

    /**
     * Setting a cache directory will turn on filesystem caching
     *
     * @param string $cacheDir
     * @return GsonBuilder
     */
    public function setCacheDir(string $cacheDir): GsonBuilder
    {
        $this->cacheDir = $cacheDir.'/gson';

        return $this;
    }

    /**
     * Builds a new [@see Gson] object based on configuration set
     *
     * @return Gson
     * @throws \LogicException
     */
    public function build(): Gson
    {
        if (null === $this->cacheDir && true === $this->enableCache) {
            throw new LogicException('Cannot enable cache without a cache directory');
        }

        $propertyNamingStrategy = $this->propertyNamingStrategy ?? new DefaultPropertyNamingStrategy($this->propertyNamingPolicy);
        $methodNamingStrategy = $this->methodNamingStrategy ?? new UpperCaseMethodNamingStrategy();

        if ($this->cache === null) {
            $this->cache = false === $this->enableCache
                ? new ArrayCache(0, false)
                : new ChainCache([new ArrayCache(0, false), new PhpFilesCache('', 0, $this->cacheDir)]);
        }

        // no need to cache the annotations as they get cached with the class/properties
        $annotationReader = new AnnotationReaderAdapter(new AnnotationReader(), new NullCache());
        $excluder = new Excluder();
        $excluder->setVersion($this->version);
        $excluder->setExcludedModifiers($this->excludedModifiers);
        $excluder->setRequireExpose($this->requireExpose);

        foreach ($this->exclusionStrategies as $strategy) {
            $excluder->addExclusionStrategy($strategy);
        }

        foreach ($this->cachedExclusionStrategies as $strategy) {
            $excluder->addCachedExclusionStrategy($strategy);
        }

        $classMetadataFactory = new ClassMetadataFactory(
            new ReflectionPropertySetFactory(),
            $annotationReader,
            new PropertyNamer($propertyNamingStrategy),
            new AccessorMethodProvider($methodNamingStrategy),
            new AccessorStrategyFactory(),
            new PhpTypeFactory(),
            $excluder,
            $this->cache
        );
        $constructorConstructor = new ConstructorConstructor($this->instanceCreators);
        $typeAdapterProvider = new TypeAdapterProvider(
            $this->getTypeAdapterFactories($classMetadataFactory, $excluder, $constructorConstructor),
            $constructorConstructor
        );

        return new Gson($typeAdapterProvider, $this->serializeNull);
    }

    /**
     * Merges default factories with user provided factories
     *
     * @param ClassMetadataFactory $classMetadataFactory
     * @param Excluder $excluder
     * @param ConstructorConstructor $constructorConstructor
     * @return array|TypeAdapterFactory[]
     */
    private function getTypeAdapterFactories(
        ClassMetadataFactory $classMetadataFactory,
        Excluder $excluder,
        ConstructorConstructor $constructorConstructor
    ): array {
        return \array_merge(
            $this->typeAdapterFactories,
            [
                new StringTypeAdapterFactory(),
                new IntegerTypeAdapterFactory(),
                new FloatTypeAdapterFactory(),
                new BooleanTypeAdapterFactory(),
                new NullTypeAdapterFactory(),
                new DateTimeTypeAdapterFactory($this->dateTimeFormat),
                new ArrayTypeAdapterFactory(),
                new JsonElementTypeAdapterFactory(),
                new ReflectionTypeAdapterFactory(
                    $constructorConstructor,
                    $classMetadataFactory,
                    $excluder
                ),
                new WildcardTypeAdapterFactory(),
            ]
        );
    }
}


1		<?php
2		/*
3		* Copyright (c) Nate Brunette.
4		* Distributed under the MIT License (http://opensource.org/licenses/MIT)
5		*/
6
7		declare(strict_types=1);
8
9		namespace Tebru\Gson;
10
11		use DateTime;
12		use Doctrine\Common\Annotations\AnnotationReader;
13		use InvalidArgumentException;
14		use LogicException;
15		use Psr\SimpleCache\CacheInterface;
16		use ReflectionProperty;
17		use Symfony\Component\Cache\Simple\ArrayCache;
18		use Symfony\Component\Cache\Simple\ChainCache;
19		use Symfony\Component\Cache\Simple\NullCache;
20		use Symfony\Component\Cache\Simple\PhpFilesCache;
21		use Tebru\AnnotationReader\AnnotationReaderAdapter;
22		use Tebru\Gson\Exclusion\DeserializationExclusionDataAware;
23		use Tebru\Gson\Exclusion\ExclusionStrategy;
		0 ignored issues – show Bug introduced 2018-08-07 08:44 UTC by Report Bug Copy Issue Report This use statement conflicts with another class in this namespace, `Tebru\Gson\ExclusionStrategy`. Consider defining an alias. Let?s assume that you have a directory layout like this: . \|-- OtherDir \| \|-- Bar.php \| `-- Foo.php `-- SomeDir `-- Foo.php and let?s assume the following content of `Bar.php`: // Bar.php namespace OtherDir; use SomeDir\Foo; // This now conflicts the class OtherDir\Foo If both files `OtherDir/Foo.php` and `SomeDir/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 before `OtherDir/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: // Bar.php namespace OtherDir; use SomeDir\Foo as SomeDirFoo; // There is no conflict anymore. Loading history...
24		use Tebru\Gson\Exclusion\SerializationExclusionDataAware;
25		use Tebru\Gson\ExclusionStrategy as DeprecatedExclusionStrategy;
26		use Tebru\Gson\Internal\AccessorMethodProvider;
27		use Tebru\Gson\Internal\AccessorStrategyFactory;
28		use Tebru\Gson\Internal\ConstructorConstructor;
29		use Tebru\Gson\Internal\Data\ClassMetadataFactory;
30		use Tebru\Gson\Internal\Data\ReflectionPropertySetFactory;
31		use Tebru\Gson\Internal\DiscriminatorDeserializer;
32		use Tebru\Gson\Internal\Excluder;
33		use Tebru\Gson\Internal\ExclusionStrategyAdapter;
34		use Tebru\Gson\Internal\Naming\DefaultPropertyNamingStrategy;
35		use Tebru\Gson\Internal\Naming\PropertyNamer;
36		use Tebru\Gson\Internal\Naming\UpperCaseMethodNamingStrategy;
37		use Tebru\Gson\Internal\PhpTypeFactory;
38		use Tebru\Gson\Internal\TypeAdapter\Factory\ArrayTypeAdapterFactory;
39		use Tebru\Gson\Internal\TypeAdapter\Factory\BooleanTypeAdapterFactory;
40		use Tebru\Gson\Internal\TypeAdapter\Factory\CustomWrappedTypeAdapterFactory;
41		use Tebru\Gson\Internal\TypeAdapter\Factory\DateTimeTypeAdapterFactory;
42		use Tebru\Gson\Internal\TypeAdapter\Factory\FloatTypeAdapterFactory;
43		use Tebru\Gson\Internal\TypeAdapter\Factory\IntegerTypeAdapterFactory;
44		use Tebru\Gson\Internal\TypeAdapter\Factory\JsonElementTypeAdapterFactory;
45		use Tebru\Gson\Internal\TypeAdapter\Factory\NullTypeAdapterFactory;
46		use Tebru\Gson\Internal\TypeAdapter\Factory\ReflectionTypeAdapterFactory;
47		use Tebru\Gson\Internal\TypeAdapter\Factory\StringTypeAdapterFactory;
48		use Tebru\Gson\Internal\TypeAdapter\Factory\WildcardTypeAdapterFactory;
49		use Tebru\Gson\Internal\TypeAdapter\Factory\WrappedTypeAdapterFactory;
50		use Tebru\Gson\Internal\TypeAdapterProvider;
51		use Tebru\PhpType\TypeToken;
52
53		/**
54		* Class GsonBuilder
55		*
56		* @author Nate Brunette <[email protected]>
57		*/
58		class GsonBuilder
59		{
60		/**
61		* Array of type adapter factories
62		*
63		* @var TypeAdapterFactory[]
64		*/
65		private $typeAdapterFactories = [];
66
67		/**
68		* @var InstanceCreator[]
69		*/
70		private $instanceCreators = [];
71
72		/**
73		* Strategy for converting property names to serialized names
74		*
75		* @var PropertyNamingStrategy
76		*/
77		private $propertyNamingStrategy;
78
79		/**
80		* Property naming policy
81		*
82		* Defaults to converting camel case to snake case
83		*
84		* @var string
85		*/
86		private $propertyNamingPolicy = PropertyNamingPolicy::LOWER_CASE_WITH_UNDERSCORES;
87
88		/**
89		* Strategy for converting property names to method names
90		*
91		* @var MethodNamingStrategy
92		*/
93		private $methodNamingStrategy;
94
95		/**
96		* The version that should be used with Since/Until annotations
97		*
98		* @var string
99		*/
100		private $version;
101
102		/**
103		* Modifiers from [@see ReflectionProperty] that should be excluded
104		*
105		* @var int
106		*/
107		private $excludedModifiers = ReflectionProperty::IS_STATIC;
108
109		/**
110		* True if the [@see Expose] annotation is required for serialization/deserialization
111		*
112		* @var bool
113		*/
114		private $requireExpose = false;
115
116		/**
117		* An array of [@see ExclusionStrategy] objects
118		*
119		* @var ExclusionStrategy[]
120		*/
121		private $exclusionStrategies = [];
122
123		/**
124		* An array of Cacheable [@see ExclusionStrategy] objects
125		*
126		* @var ExclusionStrategy[]
127		*/
128		private $cachedExclusionStrategies = [];
129
130		/**
131		* If we should serialize nulls, defaults to false
132		*
133		* @var bool
134		*/
135		private $serializeNull = false;
136
137		/**
138		* Default format for DateTimes
139		*
140		* @var string
141		*/
142		private $dateTimeFormat = DateTime::ATOM;
143
144		/**
145		* A cache interface to be used in place of defaults
146		*
147		* If this is set, [@see GsonBuilder::$enableCache] will be ignored
148		*
149		* @var CacheInterface
150		*/
151		private $cache;
152
153		/**
154		* True if we should be caching
155		*
156		* @var bool
157		*/
158		private $enableCache = false;
159
160		/**
161		* Cache directory, if set this enabled filesystem caching
162		*
163		* @var string
164		*/
165		private $cacheDir;
166
167		/**
168		* Add a custom type adapter
169		*
170		* @param TypeAdapterFactory $typeAdapterFactory
171		* @return GsonBuilder
172		*/
173	16	public function addTypeAdapterFactory(TypeAdapterFactory $typeAdapterFactory): GsonBuilder
174		{
175	16	$this->typeAdapterFactories[] = $typeAdapterFactory;
176
177	16	return $this;
178		}
179
180		/**
181		* Adds a [@see Discriminator] as a type adapter factory
182		*
183		* @param string $type
184		* @param Discriminator $discriminator
185		* @return GsonBuilder
186		*/
187	3	public function addDiscriminator(string $type, Discriminator $discriminator): GsonBuilder
188		{
189	3	$this->typeAdapterFactories[] = new CustomWrappedTypeAdapterFactory(
190	3	TypeToken::create($type),
191	3	true,
192	3	null,
193	3	new DiscriminatorDeserializer($discriminator)
194		);
195
196	3	return $this;
197		}
198
199		/**
200		* Add custom handling for a specific type
201		*
202		* Handler objects may be of types: TypeAdapter, JsonSerializer, or JsonDeserializer. Passing
203		* $strict=true will match the specified type exactly, as opposed to checking anywhere in the
204		* inheritance chain.
205		*
206		* @param string $type
207		* @param $handler
208		* @param bool $strict
209		* @return GsonBuilder
210		*/
211	7	public function registerType(string $type, $handler, bool $strict = false): GsonBuilder
212		{
213	7	if ($handler instanceof TypeAdapter) {
214	3	$this->typeAdapterFactories[] = new WrappedTypeAdapterFactory($handler, TypeToken::create($type), $strict);
215
216	3	return $this;
217		}
218
219	4	if ($handler instanceof JsonSerializer && $handler instanceof JsonDeserializer) {
220	1	$this->typeAdapterFactories[] = new CustomWrappedTypeAdapterFactory(TypeToken::create($type), $strict, $handler, $handler);
221
222	1	return $this;
223		}
224
225	3	if ($handler instanceof JsonSerializer) {
226	1	$this->typeAdapterFactories[] = new CustomWrappedTypeAdapterFactory(TypeToken::create($type), $strict, $handler);
227
228	1	return $this;
229		}
230
231	2	if ($handler instanceof JsonDeserializer) {
232	1	$this->typeAdapterFactories[] = new CustomWrappedTypeAdapterFactory(TypeToken::create($type), $strict, null, $handler);
233
234	1	return $this;
235		}
236
237	1	throw new InvalidArgumentException(\sprintf('Handler of type "%s" is not supported', \get_class($handler)));
238		}
239
240		/**
241		* Add an [@see InstanceCreator] for a given type
242		*
243		* @param string $type
244		* @param InstanceCreator $instanceCreator
245		* @return GsonBuilder
246		*/
247	2	public function addInstanceCreator(string $type, InstanceCreator $instanceCreator): GsonBuilder
248		{
249	2	$phpType = TypeToken::create($type);
250	2	$this->instanceCreators[$phpType->getRawType()] = $instanceCreator;
251
252	2	return $this;
253		}
254
255		/**
256		* Set the version to be used with [@see Since] and [@see Until] annotations
257		*
258		* @param string $version
259		* @return GsonBuilder
260		*/
261	4	public function setVersion(string $version): GsonBuilder
262		{
263	4	$this->version = $version;
264
265	4	return $this;
266		}
267
268		/**
269		* Set the property modifiers that should be excluded based on [@see \ReflectionProperty]
270		*
271		* This number is a bitmap, so ReflectionProperty::IS_STATIC will exclude all static properties.
272		* Likewise, passing (ReflectionProperty::IS_STATIC \| ReflectionProperty::IS_PRIVATE) will exclude
273		* all static and private properties.
274		*
275		* @param int $modifiers
276		* @return GsonBuilder
277		*/
278	2	public function setExcludedModifier(int $modifiers): GsonBuilder
279		{
280	2	$this->excludedModifiers = $modifiers;
281
282	2	return $this;
283		}
284
285		/**
286		* Require the [@see Expose] annotation to serialize or deserialize property
287		*
288		* @return GsonBuilder
289		*/
290	2	public function requireExposeAnnotation(): GsonBuilder
291		{
292	2	$this->requireExpose = true;
293
294	2	return $this;
295		}
296
297		/**
298		* Add an exclusion strategy that should be used during serialization/deserialization
299		*
300		* @param DeprecatedExclusionStrategy $strategy
301		* @param bool $serialization
302		* @param bool $deserialization
303		* @return GsonBuilder
304		* @deprecated Since v0.6.0 to be removed in v0.7.0. Use GsonBuilder::addExclusion() instead.
305		*/
306	3	public function addExclusionStrategy(DeprecatedExclusionStrategy $strategy, bool $serialization, bool $deserialization): GsonBuilder
307		{
308	3	@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);
309
310	3	$this->addExclusion(new ExclusionStrategyAdapter($strategy, $serialization, $deserialization));
311
312	3	return $this;
313		}
314
315		/**
316		* Add an [@see ExclusionStrategy]
317		*
318		* @param ExclusionStrategy $exclusionStrategy
319		* @return GsonBuilder
320		*/
321	5	public function addExclusion(ExclusionStrategy $exclusionStrategy): GsonBuilder
322		{
323	5	if (!$exclusionStrategy->shouldCache()) {
324	3	$this->exclusionStrategies[] = $exclusionStrategy;
325	3	return $this;
326		}
327
328		if (
329	2	$exclusionStrategy instanceof SerializationExclusionDataAware
330	2	\|\| $exclusionStrategy instanceof DeserializationExclusionDataAware
331		) {
332	1	throw new LogicException('Gson: Cacheable exclusion strategies must not implement *DataAware interfaces');
333		}
334
335	1	$this->cachedExclusionStrategies[] = $exclusionStrategy;
336
337	1	return $this;
338		}
339
340		/**
341		* Set a custom property naming strategy
342		*
343		* @param PropertyNamingStrategy $propertyNamingStrategy
344		* @return GsonBuilder
345		*/
346	1	public function setPropertyNamingStrategy(PropertyNamingStrategy $propertyNamingStrategy): GsonBuilder
347		{
348	1	$this->propertyNamingStrategy = $propertyNamingStrategy;
349
350	1	return $this;
351		}
352
353		/**
354		* Set one of [@see PropertyNamingPolicy]
355		*
356		* @param string $policy
357		* @return GsonBuilder
358		*/
359	1	public function setPropertyNamingPolicy(string $policy): GsonBuilder
360		{
361	1	$this->propertyNamingPolicy = $policy;
362
363	1	return $this;
364		}
365
366		/**
367		* Set a custom method naming strategy
368		*
369		* @param MethodNamingStrategy $methodNamingStrategy
370		* @return GsonBuilder
371		*/
372	1	public function setMethodNamingStrategy(MethodNamingStrategy $methodNamingStrategy): GsonBuilder
373		{
374	1	$this->methodNamingStrategy = $methodNamingStrategy;
375
376	1	return $this;
377		}
378
379		/**
380		* Set whether we should serialize null
381		*
382		* @return GsonBuilder
383		*/
384	1	public function serializeNull(): GsonBuilder
385		{
386	1	$this->serializeNull = true;
387
388	1	return $this;
389		}
390
391		/**
392		* Set the default datetime format
393		*
394		* @param string $format
395		* @return GsonBuilder
396		*/
397	1	public function setDateTimeFormat(string $format): GsonBuilder
398		{
399	1	$this->dateTimeFormat = $format;
400
401	1	return $this;
402		}
403
404		/**
405		* Override default cache adapters
406		*
407		* @param CacheInterface $cache
408		* @return GsonBuilder
409		*/
410	1	public function setCache(CacheInterface $cache): GsonBuilder
411		{
412	1	$this->cache = $cache;
413
414	1	return $this;
415		}
416
417
418		/**
419		* Set whether caching is enabled
420		*
421		* @param bool $enableCache
422		* @return GsonBuilder
423		*/
424	2	public function enableCache(bool $enableCache): GsonBuilder
425		{
426	2	$this->enableCache = $enableCache;
427
428	2	return $this;
429		}
430
431		/**
432		* Setting a cache directory will turn on filesystem caching
433		*
434		* @param string $cacheDir
435		* @return GsonBuilder
436		*/
437	2	public function setCacheDir(string $cacheDir): GsonBuilder
438		{
439	2	$this->cacheDir = $cacheDir.'/gson';
440
441	2	return $this;
442		}
443
444		/**
445		* Builds a new [@see Gson] object based on configuration set
446		*
447		* @return Gson
448		* @throws \LogicException
449		*/
450	43	public function build(): Gson
451		{
452	43	if (null === $this->cacheDir && true === $this->enableCache) {
453	1	throw new LogicException('Cannot enable cache without a cache directory');
454		}
455
456	42	$propertyNamingStrategy = $this->propertyNamingStrategy ?? new DefaultPropertyNamingStrategy($this->propertyNamingPolicy);
457	42	$methodNamingStrategy = $this->methodNamingStrategy ?? new UpperCaseMethodNamingStrategy();
458
459	42	if ($this->cache === null) {
460	41	$this->cache = false === $this->enableCache
461	40	? new ArrayCache(0, false)
462	1	: new ChainCache([new ArrayCache(0, false), new PhpFilesCache('', 0, $this->cacheDir)]);
463		}
464
465		// no need to cache the annotations as they get cached with the class/properties
466	42	$annotationReader = new AnnotationReaderAdapter(new AnnotationReader(), new NullCache());
467	42	$excluder = new Excluder();
468	42	$excluder->setVersion($this->version);
469	42	$excluder->setExcludedModifiers($this->excludedModifiers);
470	42	$excluder->setRequireExpose($this->requireExpose);
471
472	42	foreach ($this->exclusionStrategies as $strategy) {
473	3	$excluder->addExclusionStrategy($strategy);
474		}
475
476	42	foreach ($this->cachedExclusionStrategies as $strategy) {
477	1	$excluder->addCachedExclusionStrategy($strategy);
478		}
479
480	42	$classMetadataFactory = new ClassMetadataFactory(
481	42	new ReflectionPropertySetFactory(),
482	42	$annotationReader,
483	42	new PropertyNamer($propertyNamingStrategy),
484	42	new AccessorMethodProvider($methodNamingStrategy),
485	42	new AccessorStrategyFactory(),
486	42	new PhpTypeFactory(),
487	42	$excluder,
488	42	$this->cache
489		);
490	42	$constructorConstructor = new ConstructorConstructor($this->instanceCreators);
491	42	$typeAdapterProvider = new TypeAdapterProvider(
492	42	$this->getTypeAdapterFactories($classMetadataFactory, $excluder, $constructorConstructor),
493	42	$constructorConstructor
494		);
495
496	42	return new Gson($typeAdapterProvider, $this->serializeNull);
497		}
498
499		/**
500		* Merges default factories with user provided factories
501		*
502		* @param ClassMetadataFactory $classMetadataFactory
503		* @param Excluder $excluder
504		* @param ConstructorConstructor $constructorConstructor
505		* @return array\|TypeAdapterFactory[]
506		*/
507	42	private function getTypeAdapterFactories(
508		ClassMetadataFactory $classMetadataFactory,
509		Excluder $excluder,
510		ConstructorConstructor $constructorConstructor
511		): array {
512	42	return \array_merge(
513	42	$this->typeAdapterFactories,
514		[
515	42	new StringTypeAdapterFactory(),
516	42	new IntegerTypeAdapterFactory(),
517	42	new FloatTypeAdapterFactory(),
518	42	new BooleanTypeAdapterFactory(),
519	42	new NullTypeAdapterFactory(),
520	42	new DateTimeTypeAdapterFactory($this->dateTimeFormat),
521	42	new ArrayTypeAdapterFactory(),
522	42	new JsonElementTypeAdapterFactory(),
523	42	new ReflectionTypeAdapterFactory(
524	42	$constructorConstructor,
525	42	$classMetadataFactory,
526	42	$excluder
527		),
528	42	new WildcardTypeAdapterFactory(),
529		]
530		);
531		}
532		}
533

tebru / gson-php

Pull Request — master (#28)

GsonBuilder::build() B

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