SubresourceDataProvider::buildAggregation() - Code Metrics - Inspection of "[WIP] MongoDB support" - api-platform/core - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#2144)

by Alan

created 2018-12-02 17:07 UTC

SubresourceDataProvider::buildAggregation() B

↳ Parent: SubresourceDataProvider

Complexity

Conditions	10
Paths	15

Size

Total Lines	62
Code Lines	35

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	10
eloc	35
nc	15
nop	5
dl	0
loc	62
rs	7.6666
c	0
b	0
f	0

How to fix Long Method Complexity

<?php

/*
 * This file is part of the API Platform project.
 *
 * (c) Kévin Dunglas <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

declare(strict_types=1);

namespace ApiPlatform\Core\Bridge\Doctrine\MongoDbOdm;

use ApiPlatform\Core\Bridge\Doctrine\Common\Util\IdentifierManagerTrait;
use ApiPlatform\Core\Bridge\Doctrine\MongoDbOdm\Extension\AggregationCollectionExtensionInterface;
use ApiPlatform\Core\Bridge\Doctrine\MongoDbOdm\Extension\AggregationItemExtensionInterface;
use ApiPlatform\Core\Bridge\Doctrine\MongoDbOdm\Extension\AggregationResultCollectionExtensionInterface;
use ApiPlatform\Core\Bridge\Doctrine\MongoDbOdm\Extension\AggregationResultItemExtensionInterface;
use ApiPlatform\Core\DataProvider\SubresourceDataProviderInterface;
use ApiPlatform\Core\Exception\ResourceClassNotSupportedException;
use ApiPlatform\Core\Exception\RuntimeException;
use ApiPlatform\Core\Identifier\IdentifierConverterInterface;
use ApiPlatform\Core\Metadata\Property\Factory\PropertyMetadataFactoryInterface;
use ApiPlatform\Core\Metadata\Property\Factory\PropertyNameCollectionFactoryInterface;
use Doctrine\Common\Persistence\ManagerRegistry;
use Doctrine\ODM\MongoDB\Aggregation\Builder;
use Doctrine\ODM\MongoDB\DocumentManager;
use Doctrine\ODM\MongoDB\Mapping\ClassMetadata;

/**
 * Subresource data provider for the Doctrine MongoDB ODM.
 *
 * @author Antoine Bluchet <[email protected]>
 * @author Alan Poulain <[email protected]>
 */
final class SubresourceDataProvider implements SubresourceDataProviderInterface
{
    use IdentifierManagerTrait;

    private $managerRegistry;
    private $collectionExtensions;
    private $itemExtensions;

    /**
     * @param AggregationCollectionExtensionInterface[] $collectionExtensions
     * @param AggregationItemExtensionInterface[]       $itemExtensions
     */
    public function __construct(ManagerRegistry $managerRegistry, PropertyNameCollectionFactoryInterface $propertyNameCollectionFactory, PropertyMetadataFactoryInterface $propertyMetadataFactory, iterable $collectionExtensions = [], iterable $itemExtensions = [])
    {
        $this->managerRegistry = $managerRegistry;
        $this->propertyNameCollectionFactory = $propertyNameCollectionFactory;
        $this->propertyMetadataFactory = $propertyMetadataFactory;
        $this->collectionExtensions = $collectionExtensions;
        $this->itemExtensions = $itemExtensions;
    }

    /**
     * {@inheritdoc}
     *
     * @throws RuntimeException
     */
    public function getSubresource(string $resourceClass, array $identifiers, array $context, string $operationName = null)
    {
        $manager = $this->managerRegistry->getManagerForClass($resourceClass);
        if (null === $manager) {
            throw new ResourceClassNotSupportedException(sprintf('The object manager associated with the "%s" resource class cannot be retrieved.', $resourceClass));
        }

        $repository = $manager->getRepository($resourceClass);
        if (!method_exists($repository, 'createAggregationBuilder')) {
            throw new RuntimeException('The repository class must have a "createAggregationBuilder" method.');
        }

        if (!isset($context['identifiers'], $context['property'])) {
            throw new ResourceClassNotSupportedException('The given resource class is not a subresource.');
        }

        $aggregationBuilder = $this->buildAggregation($identifiers, $context, $repository->createAggregationBuilder(), \count($context['identifiers']));

        if (true === $context['collection']) {
            foreach ($this->collectionExtensions as $extension) {
                $extension->applyToCollection($aggregationBuilder, $resourceClass, $operationName, $context);
                if ($extension instanceof AggregationResultCollectionExtensionInterface && $extension->supportsResult($resourceClass, $operationName, $context)) {
                    return $extension->getResult($aggregationBuilder, $resourceClass, $operationName, $context);
                }
            }
        } else {
            foreach ($this->itemExtensions as $extension) {
                $extension->applyToItem($aggregationBuilder, $resourceClass, $identifiers, $operationName, $context);
                if ($extension instanceof AggregationResultItemExtensionInterface && $extension->supportsResult($resourceClass, $operationName, $context)) {
                    return $extension->getResult($aggregationBuilder, $resourceClass, $operationName, $context);
                }
            }
        }

        $iterator = $aggregationBuilder->hydrate($resourceClass)->execute();

        return $context['collection'] ? $iterator->toArray() : $iterator->getSingleResult();
    }

    /**
     * @throws RuntimeException
     */
    private function buildAggregation(array $identifiers, array $context, Builder $previousAggregationBuilder, int $remainingIdentifiers, Builder $topAggregationBuilder = null): Builder
    {
        if ($remainingIdentifiers <= 0) {
            return $previousAggregationBuilder;
        }

        $topAggregationBuilder = $topAggregationBuilder ?? $previousAggregationBuilder;

        list($identifier, $identifierResourceClass) = $context['identifiers'][$remainingIdentifiers - 1];
        $previousAssociationProperty = $context['identifiers'][$remainingIdentifiers][0] ?? $context['property'];

        $manager = $this->managerRegistry->getManagerForClass($identifierResourceClass);

        if (!$manager instanceof DocumentManager) {
            throw new RuntimeException("The manager for $identifierResourceClass must be a DocumentManager.");
        }

        $classMetadata = $manager->getClassMetadata($identifierResourceClass);

        if (!$classMetadata instanceof ClassMetadata) {

            throw new RuntimeException(
                "The class metadata for $identifierResourceClass must be an instance of ClassMetadata."
            );
        }

        $aggregation = $manager->createAggregationBuilder($identifierResourceClass);
        $normalizedIdentifiers = [];

        if (isset($identifiers[$identifier])) {
            // if it's an array it's already normalized, the IdentifierManagerTrait is deprecated
            if ($context[IdentifierConverterInterface::HAS_IDENTIFIER_CONVERTER] ?? false) {
                $normalizedIdentifiers = $identifiers[$identifier];
            } else {
                $normalizedIdentifiers = $this->normalizeIdentifiers($identifiers[$identifier], $manager, $identifierResourceClass);
            }
        }

        if ($classMetadata->hasAssociation($previousAssociationProperty)) {
            $aggregation->lookup($previousAssociationProperty)->alias($previousAssociationProperty);
            foreach ($normalizedIdentifiers as $key => $value) {
                $aggregation->match()->field($key)->equals($value);
            }
        } elseif ($classMetadata->isIdentifier($previousAssociationProperty)) {
            foreach ($normalizedIdentifiers as $key => $value) {
                $aggregation->match()->field($key)->equals($value);
            }

            return $aggregation;
        }

        // Recurse aggregations
        $aggregation = $this->buildAggregation($identifiers, $context, $aggregation, --$remainingIdentifiers, $topAggregationBuilder);

        $results = $aggregation->execute()->toArray();
        $in = array_reduce($results, function ($in, $result) use ($previousAssociationProperty) {
            return $in + array_map(function ($result) {
                return $result['_id'];
            }, $result[$previousAssociationProperty] ?? []);
        }, []);
        $previousAggregationBuilder->match()->field('_id')->in($in);

        return $previousAggregationBuilder;
    }
}


1			<?php
2
3			/*
4			* This file is part of the API Platform project.
5			*
6			* (c) Kévin Dunglas <[email protected]>
7			*
8			* For the full copyright and license information, please view the LICENSE
9			* file that was distributed with this source code.
10			*/
11
12			declare(strict_types=1);
13
14			namespace ApiPlatform\Core\Bridge\Doctrine\MongoDbOdm;
15
16			use ApiPlatform\Core\Bridge\Doctrine\Common\Util\IdentifierManagerTrait;
17			use ApiPlatform\Core\Bridge\Doctrine\MongoDbOdm\Extension\AggregationCollectionExtensionInterface;
18			use ApiPlatform\Core\Bridge\Doctrine\MongoDbOdm\Extension\AggregationItemExtensionInterface;
19			use ApiPlatform\Core\Bridge\Doctrine\MongoDbOdm\Extension\AggregationResultCollectionExtensionInterface;
20			use ApiPlatform\Core\Bridge\Doctrine\MongoDbOdm\Extension\AggregationResultItemExtensionInterface;
21			use ApiPlatform\Core\DataProvider\SubresourceDataProviderInterface;
22			use ApiPlatform\Core\Exception\ResourceClassNotSupportedException;
23			use ApiPlatform\Core\Exception\RuntimeException;
24			use ApiPlatform\Core\Identifier\IdentifierConverterInterface;
25			use ApiPlatform\Core\Metadata\Property\Factory\PropertyMetadataFactoryInterface;
26			use ApiPlatform\Core\Metadata\Property\Factory\PropertyNameCollectionFactoryInterface;
27			use Doctrine\Common\Persistence\ManagerRegistry;
28			use Doctrine\ODM\MongoDB\Aggregation\Builder;
29			use Doctrine\ODM\MongoDB\DocumentManager;
30			use Doctrine\ODM\MongoDB\Mapping\ClassMetadata;
31
32			/**
33			* Subresource data provider for the Doctrine MongoDB ODM.
34			*
35			* @author Antoine Bluchet <[email protected]>
36			* @author Alan Poulain <[email protected]>
37			*/
38			final class SubresourceDataProvider implements SubresourceDataProviderInterface
39			{
40			use IdentifierManagerTrait;
41
42			private $managerRegistry;
43			private $collectionExtensions;
44			private $itemExtensions;
45
46			/**
47			* @param AggregationCollectionExtensionInterface[] $collectionExtensions
48			* @param AggregationItemExtensionInterface[] $itemExtensions
49			*/
50			public function __construct(ManagerRegistry $managerRegistry, PropertyNameCollectionFactoryInterface $propertyNameCollectionFactory, PropertyMetadataFactoryInterface $propertyMetadataFactory, iterable $collectionExtensions = [], iterable $itemExtensions = [])
51			{
52			$this->managerRegistry = $managerRegistry;
53			$this->propertyNameCollectionFactory = $propertyNameCollectionFactory;
54			$this->propertyMetadataFactory = $propertyMetadataFactory;
55			$this->collectionExtensions = $collectionExtensions;
56			$this->itemExtensions = $itemExtensions;
57			}
58
59			/**
60			* {@inheritdoc}
61			*
62			* @throws RuntimeException
63			*/
64			public function getSubresource(string $resourceClass, array $identifiers, array $context, string $operationName = null)
65			{
66			$manager = $this->managerRegistry->getManagerForClass($resourceClass);
67			if (null === $manager) {
68			throw new ResourceClassNotSupportedException(sprintf('The object manager associated with the "%s" resource class cannot be retrieved.', $resourceClass));
69			}
70
71			$repository = $manager->getRepository($resourceClass);
72			if (!method_exists($repository, 'createAggregationBuilder')) {
73			throw new RuntimeException('The repository class must have a "createAggregationBuilder" method.');
74			}
75
76			if (!isset($context['identifiers'], $context['property'])) {
77			throw new ResourceClassNotSupportedException('The given resource class is not a subresource.');
78			}
79
80			$aggregationBuilder = $this->buildAggregation($identifiers, $context, $repository->createAggregationBuilder(), \count($context['identifiers']));
81
82			if (true === $context['collection']) {
83			foreach ($this->collectionExtensions as $extension) {
84			$extension->applyToCollection($aggregationBuilder, $resourceClass, $operationName, $context);
85			if ($extension instanceof AggregationResultCollectionExtensionInterface && $extension->supportsResult($resourceClass, $operationName, $context)) {
86			return $extension->getResult($aggregationBuilder, $resourceClass, $operationName, $context);
87			}
88			}
89			} else {
90			foreach ($this->itemExtensions as $extension) {
91			$extension->applyToItem($aggregationBuilder, $resourceClass, $identifiers, $operationName, $context);
92			if ($extension instanceof AggregationResultItemExtensionInterface && $extension->supportsResult($resourceClass, $operationName, $context)) {
93			return $extension->getResult($aggregationBuilder, $resourceClass, $operationName, $context);
94			}
95			}
96			}
97
98			$iterator = $aggregationBuilder->hydrate($resourceClass)->execute();
99
100			return $context['collection'] ? $iterator->toArray() : $iterator->getSingleResult();
101			}
102
103			/**
104			* @throws RuntimeException
105			*/
106			private function buildAggregation(array $identifiers, array $context, Builder $previousAggregationBuilder, int $remainingIdentifiers, Builder $topAggregationBuilder = null): Builder
107			{
108			if ($remainingIdentifiers <= 0) {
109			return $previousAggregationBuilder;
110			}
111
112			$topAggregationBuilder = $topAggregationBuilder ?? $previousAggregationBuilder;
113
114			list($identifier, $identifierResourceClass) = $context['identifiers'][$remainingIdentifiers - 1];
115			$previousAssociationProperty = $context['identifiers'][$remainingIdentifiers][0] ?? $context['property'];
116
117			$manager = $this->managerRegistry->getManagerForClass($identifierResourceClass);
118
119			if (!$manager instanceof DocumentManager) {
120			throw new RuntimeException("The manager for $identifierResourceClass must be a DocumentManager.");
121			}
122
123			$classMetadata = $manager->getClassMetadata($identifierResourceClass);
124
125			if (!$classMetadata instanceof ClassMetadata) {
			0 ignored issues – show introduced 2018-10-21 18:46 UTC by Report Bug Copy Issue Report `$classMetadata` is always a sub-type of `Doctrine\ODM\MongoDB\Mapping\ClassMetadata`. Loading history...
126			throw new RuntimeException(
127			"The class metadata for $identifierResourceClass must be an instance of ClassMetadata."
128			);
129			}
130
131			$aggregation = $manager->createAggregationBuilder($identifierResourceClass);
132			$normalizedIdentifiers = [];
133
134			if (isset($identifiers[$identifier])) {
135			// if it's an array it's already normalized, the IdentifierManagerTrait is deprecated
136			if ($context[IdentifierConverterInterface::HAS_IDENTIFIER_CONVERTER] ?? false) {
137			$normalizedIdentifiers = $identifiers[$identifier];
138			} else {
139			$normalizedIdentifiers = $this->normalizeIdentifiers($identifiers[$identifier], $manager, $identifierResourceClass);
140			}
141			}
142
143			if ($classMetadata->hasAssociation($previousAssociationProperty)) {
144			$aggregation->lookup($previousAssociationProperty)->alias($previousAssociationProperty);
145			foreach ($normalizedIdentifiers as $key => $value) {
146			$aggregation->match()->field($key)->equals($value);
147			}
148			} elseif ($classMetadata->isIdentifier($previousAssociationProperty)) {
149			foreach ($normalizedIdentifiers as $key => $value) {
150			$aggregation->match()->field($key)->equals($value);
151			}
152
153			return $aggregation;
154			}
155
156			// Recurse aggregations
157			$aggregation = $this->buildAggregation($identifiers, $context, $aggregation, --$remainingIdentifiers, $topAggregationBuilder);
158
159			$results = $aggregation->execute()->toArray();
160			$in = array_reduce($results, function ($in, $result) use ($previousAssociationProperty) {
161			return $in + array_map(function ($result) {
162			return $result['_id'];
163			}, $result[$previousAssociationProperty] ?? []);
164			}, []);
165			$previousAggregationBuilder->match()->field('_id')->in($in);
166
167			return $previousAggregationBuilder;
168			}
169			}
170

api-platform / core

Pull Request — master (#2144)

SubresourceDataProvider::buildAggregation() B

Complexity

Size

Duplication

Importance

How to fix Long Method Complexity

Long Method

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