AbstractFieldsConfigurationFactory::create() - Code Metrics - Inspection of "New `@API\FilterGroupConditon` annotation to overr..." - Ecodev/graphql-doctrine - Measure and Improve Code Quality continuously with Scrutinizer

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by Adrien

created 2020-11-16 03:49 UTC

AbstractFieldsConfigurationFactory::create() B

↳ Parent: AbstractFieldsConfigurationFactory

Complexity

Conditions	7
Paths	6

Size

Total Lines	31
Code Lines	16

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	17
CRAP Score	7

Importance

Changes

Metric	Value
eloc	16
dl	0
loc	31
rs	8.8333
c	0
b	0
f	0
ccs	17
cts	17
cp	1
cc	7
nc	6
nop	1
crap	7

<?php

declare(strict_types=1);

namespace GraphQL\Doctrine\Factory;

use Doctrine\Common\Collections\Collection;
use Doctrine\ORM\Mapping\ClassMetadata;
use GraphQL\Doctrine\Annotation\AbstractAnnotation;
use GraphQL\Doctrine\Annotation\Exclude;
use GraphQL\Doctrine\Exception;
use GraphQL\Type\Definition\InputType;
use GraphQL\Type\Definition\NonNull;
use GraphQL\Type\Definition\Type;
use GraphQL\Type\Definition\WrappingType;
use ReflectionClass;
use ReflectionMethod;
use ReflectionNamedType;
use ReflectionParameter;
use ReflectionProperty;

/**
 * A factory to create a configuration for all fields of an entity
 */
abstract class AbstractFieldsConfigurationFactory extends AbstractFactory
{
    /**
     * Doctrine metadata for the entity
     *
     * @var ClassMetadata
     */
    private $metadata;

    /**
     * The identity field name, eg: "id"
     *
     * @var string
     */
    private $identityField;

    /**
     * Returns the regexp pattern to filter method names
     */
    abstract protected function getMethodPattern(): string;

    /**
     * Get the entire configuration for a method
     */
    abstract protected function methodToConfiguration(ReflectionMethod $method): ?array;

    /**
     * Create a configuration for all fields of Doctrine entity
     */
    public function create(string $className): array
    {
        $this->findIdentityField($className);

        $class = $this->metadata->getReflectionClass();
        $methods = $class->getMethods(ReflectionMethod::IS_PUBLIC);
        $fieldConfigurations = [];
        foreach ($methods as $method) {
            // Skip non-callable or non-instance
            if ($method->isAbstract() || $method->isStatic()) {
                continue;
            }

            // Skip non-getter methods
            $name = $method->getName();
            if (!preg_match($this->getMethodPattern(), $name)) {
                continue;
            }

            // Skip exclusion specified by user
            if ($this->isExcluded($method)) {
                continue;
            }

            $configuration = $this->methodToConfiguration($method);
            if ($configuration) {
                $fieldConfigurations[] = $configuration;
            }
        }

        return $fieldConfigurations;
    }

    /**
     * Returns whether the getter is excluded
     */
    private function isExcluded(ReflectionMethod $method): bool
    {
        $exclude = $this->getAnnotationReader()->getMethodAnnotation($method, Exclude::class);

        return $exclude !== null;
    }

    /**
     * Get a GraphQL type instance from PHP type hinted type, possibly looking up the content of collections
     */
    final protected function getTypeFromReturnTypeHint(ReflectionMethod $method, string $fieldName): ?Type
    {
        $returnType = $method->getReturnType();
        if (!$returnType instanceof ReflectionNamedType) {
            return null;
        }

        $returnTypeName = $returnType->getName();
        if (is_a($returnTypeName, Collection::class, true) || $returnTypeName === 'array') {
            $targetEntity = $this->getTargetEntity($fieldName);
            if (!$targetEntity) {
                throw new Exception('The method ' . $this->getMethodFullName($method) . ' is type hinted with a return type of `' . $returnTypeName . '`, but the entity contained in that collection could not be automatically detected. Either fix the type hint, fix the doctrine mapping, or specify the type with `@API\Field` annotation.');
            }

            $type = Type::listOf(Type::nonNull($this->getTypeFromRegistry($targetEntity, false)));
            if (!$returnType->allowsNull()) {
                $type = Type::nonNull($type);
            }

            return $type;
        }

        return $this->reflectionTypeToType($returnType);
    }

    /**
     * Convert a reflected type to GraphQL Type
     */
    final protected function reflectionTypeToType(ReflectionNamedType $reflectionType, bool $isEntityId = false): Type
    {
        $name = $reflectionType->getName();
        if ($name === 'self') {
            $name = $this->metadata->name;
        }

        $type = $this->getTypeFromRegistry($name, $isEntityId);
        if (!$reflectionType->allowsNull()) {
            $type = Type::nonNull($type);
        }

        return $type;
    }

    /**
     * Look up which field is the ID
     */
    private function findIdentityField(string $className): void
    {
        $this->metadata = $this->entityManager->getClassMetadata($className);
        /** @var array $meta */
        foreach ($this->metadata->fieldMappings as $meta) {
            if ($meta['id'] ?? false) {
                $this->identityField = $meta['fieldName'];
            }
        }
    }

    /**
     * Returns the fully qualified method name
     */
    final protected function getMethodFullName(ReflectionMethod $method): string
    {
        return '`' . $method->getDeclaringClass()->getName() . '::' . $method->getName() . '()`';
    }

    /**
     * Throws exception if type is an array
     */
    final protected function throwIfArray(ReflectionParameter $param, ?string $type): void
    {
        if ($type === 'array') {
            throw new Exception('The parameter `$' . $param->getName() . '` on method ' . $this->getMethodFullName($param->getDeclaringFunction()) . ' is type hinted as `array` and is not overridden via `@API\Argument` annotation. Either change the type hint or specify the type with `@API\Argument` annotation.');
        }
    }

    /**
     * Returns whether the given field name is the identity for the entity
     */
    final protected function isIdentityField(string $fieldName): bool
    {
        return $this->identityField === $fieldName;
    }

    /**
     * Finds the target entity in the given association
     */
    private function getTargetEntity(string $fieldName): ?string
    {
        return $this->metadata->associationMappings[$fieldName]['targetEntity'] ?? null;
    }

    /**
     * Return the default value, if any, of the property for the current entity
     *
     * It does take into account that the property might be defined on a parent class
     * of entity. And it will find it if that is the case.
     *
     * @return mixed
     */
    final protected function getPropertyDefaultValue(string $fieldName)
    {
        /** @var null|ReflectionProperty $property */
        $property = $this->metadata->getReflectionProperties()[$fieldName] ?? null;
        if (!$property) {
            return null;
        }

        return $property->getDeclaringClass()->getDefaultProperties()[$fieldName] ?? null;
    }

    /**
     * Input with default values cannot be non-null
     */
    final protected function nonNullIfHasDefault(AbstractAnnotation $annotation): void
    {
        $type = $annotation->getTypeInstance();
        if ($type instanceof NonNull && $annotation->hasDefaultValue()) {
            $annotation->setTypeInstance($type->getWrappedType());
        }
    }

    /**
     * Throws exception if argument type is invalid
     */
    final protected function throwIfNotInputType(ReflectionParameter $param, AbstractAnnotation $annotation): void
    {
        $type = $annotation->getTypeInstance();
        $class = new ReflectionClass($annotation);
        $annotationName = $class->getShortName();

        if (!$type) {
            throw new Exception('Could not find type for parameter `$' . $param->name . '` for method ' . $this->getMethodFullName($param->getDeclaringFunction()) . '. Either type hint the parameter, or specify the type with `@API\\' . $annotationName . '` annotation.');
        }

        if ($type instanceof WrappingType) {
            $type = $type->getWrappedType(true);
        }

        if (!($type instanceof InputType)) {
            throw new Exception('Type for parameter `$' . $param->name . '` for method ' . $this->getMethodFullName($param->getDeclaringFunction()) . ' must be an instance of `' . InputType::class . '`, but was `' . get_class($type) . '`. Use `@API\\' . $annotationName . '` annotation to specify a custom InputType.');
        }
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace GraphQL\Doctrine\Factory;
6
7		use Doctrine\Common\Collections\Collection;
8		use Doctrine\ORM\Mapping\ClassMetadata;
9		use GraphQL\Doctrine\Annotation\AbstractAnnotation;
10		use GraphQL\Doctrine\Annotation\Exclude;
11		use GraphQL\Doctrine\Exception;
12		use GraphQL\Type\Definition\InputType;
13		use GraphQL\Type\Definition\NonNull;
14		use GraphQL\Type\Definition\Type;
15		use GraphQL\Type\Definition\WrappingType;
16		use ReflectionClass;
17		use ReflectionMethod;
18		use ReflectionNamedType;
19		use ReflectionParameter;
20		use ReflectionProperty;
21
22		/**
23		* A factory to create a configuration for all fields of an entity
24		*/
25		abstract class AbstractFieldsConfigurationFactory extends AbstractFactory
26		{
27		/**
28		* Doctrine metadata for the entity
29		*
30		* @var ClassMetadata
31		*/
32		private $metadata;
33
34		/**
35		* The identity field name, eg: "id"
36		*
37		* @var string
38		*/
39		private $identityField;
40
41		/**
42		* Returns the regexp pattern to filter method names
43		*/
44		abstract protected function getMethodPattern(): string;
45
46		/**
47		* Get the entire configuration for a method
48		*/
49		abstract protected function methodToConfiguration(ReflectionMethod $method): ?array;
50
51		/**
52		* Create a configuration for all fields of Doctrine entity
53		*/
54	21	public function create(string $className): array
55		{
56	21	$this->findIdentityField($className);
57
58	21	$class = $this->metadata->getReflectionClass();
59	21	$methods = $class->getMethods(ReflectionMethod::IS_PUBLIC);
60	21	$fieldConfigurations = [];
61	21	foreach ($methods as $method) {
62		// Skip non-callable or non-instance
63	21	if ($method->isAbstract() \|\| $method->isStatic()) {
64	1	continue;
65		}
66
67		// Skip non-getter methods
68	21	$name = $method->getName();
69	21	if (!preg_match($this->getMethodPattern(), $name)) {
70	14	continue;
71		}
72
73		// Skip exclusion specified by user
74	21	if ($this->isExcluded($method)) {
75	3	continue;
76		}
77
78	19	$configuration = $this->methodToConfiguration($method);
79	12	if ($configuration) {
80	12	$fieldConfigurations[] = $configuration;
81		}
82		}
83
84	12	return $fieldConfigurations;
85		}
86
87		/**
88		* Returns whether the getter is excluded
89		*/
90	21	private function isExcluded(ReflectionMethod $method): bool
91		{
92	21	$exclude = $this->getAnnotationReader()->getMethodAnnotation($method, Exclude::class);
93
94	19	return $exclude !== null;
95		}
96
97		/**
98		* Get a GraphQL type instance from PHP type hinted type, possibly looking up the content of collections
99		*/
100	9	final protected function getTypeFromReturnTypeHint(ReflectionMethod $method, string $fieldName): ?Type
101		{
102	9	$returnType = $method->getReturnType();
103	9	if (!$returnType instanceof ReflectionNamedType) {
104	1	return null;
105		}
106
107	8	$returnTypeName = $returnType->getName();
108	8	if (is_a($returnTypeName, Collection::class, true) \|\| $returnTypeName === 'array') {
109	3	$targetEntity = $this->getTargetEntity($fieldName);
110	3	if (!$targetEntity) {
111	1	throw new Exception('The method ' . $this->getMethodFullName($method) . ' is type hinted with a return type of `' . $returnTypeName . '`, but the entity contained in that collection could not be automatically detected. Either fix the type hint, fix the doctrine mapping, or specify the type with `@API\Field` annotation.');
112		}
113
114	2	$type = Type::listOf(Type::nonNull($this->getTypeFromRegistry($targetEntity, false)));
115	2	if (!$returnType->allowsNull()) {
116	2	$type = Type::nonNull($type);
117		}
118
119	2	return $type;
120		}
121
122	7	return $this->reflectionTypeToType($returnType);
123		}
124
125		/**
126		* Convert a reflected type to GraphQL Type
127		*/
128	12	final protected function reflectionTypeToType(ReflectionNamedType $reflectionType, bool $isEntityId = false): Type
129		{
130	12	$name = $reflectionType->getName();
131	12	if ($name === 'self') {
132	5	$name = $this->metadata->name;
133		}
134
135	12	$type = $this->getTypeFromRegistry($name, $isEntityId);
136	12	if (!$reflectionType->allowsNull()) {
137	11	$type = Type::nonNull($type);
138		}
139
140	12	return $type;
141		}
142
143		/**
144		* Look up which field is the ID
145		*/
146	21	private function findIdentityField(string $className): void
147		{
148	21	$this->metadata = $this->entityManager->getClassMetadata($className);
149		/** @var array $meta */
150	21	foreach ($this->metadata->fieldMappings as $meta) {
151	21	if ($meta['id'] ?? false) {
152	21	$this->identityField = $meta['fieldName'];
153		}
154		}
155	21	}
156
157		/**
158		* Returns the fully qualified method name
159		*/
160	7	final protected function getMethodFullName(ReflectionMethod $method): string
161		{
162	7	return '`' . $method->getDeclaringClass()->getName() . '::' . $method->getName() . '()`';
163		}
164
165		/**
166		* Throws exception if type is an array
167		*/
168	14	final protected function throwIfArray(ReflectionParameter $param, ?string $type): void
169		{
170	14	if ($type === 'array') {
171	1	throw new Exception('The parameter `$' . $param->getName() . '` on method ' . $this->getMethodFullName($param->getDeclaringFunction()) . ' is type hinted as `array` and is not overridden via `@API\Argument` annotation. Either change the type hint or specify the type with `@API\Argument` annotation.');
172		}
173	14	}
174
175		/**
176		* Returns whether the given field name is the identity for the entity
177		*/
178	10	final protected function isIdentityField(string $fieldName): bool
179		{
180	10	return $this->identityField === $fieldName;
181		}
182
183		/**
184		* Finds the target entity in the given association
185		*/
186	3	private function getTargetEntity(string $fieldName): ?string
187		{
188	3	return $this->metadata->associationMappings[$fieldName]['targetEntity'] ?? null;
189		}
190
191		/**
192		* Return the default value, if any, of the property for the current entity
193		*
194		* It does take into account that the property might be defined on a parent class
195		* of entity. And it will find it if that is the case.
196		*
197		* @return mixed
198		*/
199	6	final protected function getPropertyDefaultValue(string $fieldName)
200		{
201		/** @var null\|ReflectionProperty $property */
202	6	$property = $this->metadata->getReflectionProperties()[$fieldName] ?? null;
203	6	if (!$property) {
204	4	return null;
205		}
206
207	5	return $property->getDeclaringClass()->getDefaultProperties()[$fieldName] ?? null;
208		}
209
210		/**
211		* Input with default values cannot be non-null
212		*/
213	14	final protected function nonNullIfHasDefault(AbstractAnnotation $annotation): void
214		{
215	14	$type = $annotation->getTypeInstance();
216	14	if ($type instanceof NonNull && $annotation->hasDefaultValue()) {
217	9	$annotation->setTypeInstance($type->getWrappedType());
218		}
219	14	}
220
221		/**
222		* Throws exception if argument type is invalid
223		*/
224	14	final protected function throwIfNotInputType(ReflectionParameter $param, AbstractAnnotation $annotation): void
225		{
226	14	$type = $annotation->getTypeInstance();
227	14	$class = new ReflectionClass($annotation);
228	14	$annotationName = $class->getShortName();
229
230	14	if (!$type) {
231	2	throw new Exception('Could not find type for parameter `$' . $param->name . '` for method ' . $this->getMethodFullName($param->getDeclaringFunction()) . '. Either type hint the parameter, or specify the type with `@API\\' . $annotationName . '` annotation.');
232		}
233
234	12	if ($type instanceof WrappingType) {
235	12	$type = $type->getWrappedType(true);
236		}
237
238	12	if (!($type instanceof InputType)) {
239	1	throw new Exception('Type for parameter `$' . $param->name . '` for method ' . $this->getMethodFullName($param->getDeclaringFunction()) . ' must be an instance of `' . InputType::class . '`, but was `' . get_class($type) . '`. Use `@API\\' . $annotationName . '` annotation to specify a custom InputType.');
240		}
241	11	}
242		}
243

Ecodev / graphql-doctrine

Push — master ( 88bd6b...18ff69 )

AbstractFieldsConfigurationFactory::create() B

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