Processor::resolveRequest() - Code Metrics - Inspection of "Implement query reducers." - drupal-graphql/graphql - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — 8.x-3.x (#519)

by Sebastian

created 2018-02-14 17:25 UTC

Processor::resolveRequest() C

↳ Parent: Processor

Complexity

Conditions	11
Paths	58

Size

Total Lines	41
Code Lines	21

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	11
eloc	21
nc	58
nop	0
dl	0
loc	41
rs	5.2653
c	0
b	0
f	0

How to fix Complexity

<?php

namespace Drupal\graphql\GraphQL\Execution;

use Drupal\graphql\GraphQL\Execution\Visitor\VisitorInterface;
use Youshido\GraphQL\Exception\ResolveException;
use Youshido\GraphQL\Execution\DeferredResolverInterface;
use Youshido\GraphQL\Execution\DeferredResult;
use Youshido\GraphQL\Execution\Processor as BaseProcessor;
use Youshido\GraphQL\Execution\Request;
use Youshido\GraphQL\Field\FieldInterface;
use Youshido\GraphQL\Parser\Parser;
use Youshido\GraphQL\Schema\AbstractSchema;
use Youshido\GraphQL\Type\Enum\AbstractEnumType;
use Youshido\GraphQL\Type\Scalar\AbstractScalarType;
use Youshido\GraphQL\Validator\RequestValidator\RequestValidator;

class Processor extends BaseProcessor {

  /**
   * @var \Drupal\graphql\GraphQL\Execution\Reducer
   */
  protected $requestReducer;

  /**
   * Processor constructor.
   *
   * @param \Youshido\GraphQL\Schema\AbstractSchema $schema
   * @param $query
   * @param array $variables
   */
  public function __construct(AbstractSchema $schema, $query, array $variables = []) {
    parent::__construct($schema);

    $parser = new Parser();
    $request = new Request($parser->parse($query), $variables);

    // Validation of the query payload. This does not take into consideration
    // any schema specifics and simply validations the structure of the query.
    $validator = new RequestValidator();
    $validator->validate($request);

    // Set the request in the execution context.
    $this->executionContext->setRequest($request);

    // Create a request reducer for our query visitors.
    $this->requestReducer = new Reducer($this->executionContext);
  }

  /**
   * @param \Drupal\graphql\GraphQL\Execution\Visitor\VisitorInterface $visitor
   * @param callable $callback
   *
   * @return null
   */
  public function reduceRequest(VisitorInterface $visitor, callable $callback) {
    try {
      $result = $this->requestReducer->reduceRequest($visitor);

      // Call the 'finish' callback. This is useful because that way the
      // exceptions are caught here and can be written into the execution
      // context.
      return $callback($result);
    }
    catch (ResolveException $exception) {
      $this->executionContext->addError($exception);
    }

    return NULL;
  }

  /**
   * @return array|mixed
   */
  public function resolveRequest() {
    $output = [];

    if (!$this->executionContext->hasErrors()) {
      try {
        $operations = $this->executionContext->getRequest()->getAllOperations();

        foreach ($operations as $query) {
          if ($result = $this->resolveQuery($query)) {
            $output = array_replace_recursive($output, $result);
          };
        }

        // If the processor found any deferred results, resolve them now.
        if (!empty($output) && (!empty($this->deferredResultsLeaf) || !empty($this->deferredResultsComplex))) {
          try {
            while ($resolver = array_shift($this->deferredResultsComplex)) {
              $resolver->resolve();
            }

            // Deferred scalar and enum fields should be resolved last to pick up
            // as many as possible for a single batch.
            while ($resolver = array_shift($this->deferredResultsLeaf)) {
              $resolver->resolve();
            }
          }
          catch (ResolveException $exception) {
            $this->executionContext->addError($exception);
          }
          finally {
            $output = static::unpackDeferredResults($output);
          }
        }
      }
      catch (ResolveException $exception) {
        $this->executionContext->addError($exception);
      }
    }

    return $output;
  }

  /**
   * {@inheritdoc}
   */
  protected function deferredResolve($resolvedValue, FieldInterface $field, callable $callback) {
    if ($resolvedValue instanceof DeferredResolverInterface) {
      $deferredResult = new DeferredResult($resolvedValue, function ($resolvedValue) use ($field, $callback) {
        // Allow nested deferred resolvers.
        return $this->deferredResolve($resolvedValue, $field, $callback);
      });

      // Whenever we stumble upon a deferred resolver, add it to the queue to be
      // resolved later.
      $type = $field->getType()->getNamedType();
      if ($type instanceof AbstractScalarType || $type instanceof AbstractEnumType) {
        array_push($this->deferredResultsLeaf, $deferredResult);
      }
      else {
        array_push($this->deferredResultsComplex, $deferredResult);
      }

      return $deferredResult;
    }

    // For simple values, invoke the callback immediately.
    return $callback($resolvedValue);
  }

}

1			<?php
2
3			namespace Drupal\graphql\GraphQL\Execution;
4
5			use Drupal\graphql\GraphQL\Execution\Visitor\VisitorInterface;
6			use Youshido\GraphQL\Exception\ResolveException;
7			use Youshido\GraphQL\Execution\DeferredResolverInterface;
8			use Youshido\GraphQL\Execution\DeferredResult;
9			use Youshido\GraphQL\Execution\Processor as BaseProcessor;
10			use Youshido\GraphQL\Execution\Request;
11			use Youshido\GraphQL\Field\FieldInterface;
12			use Youshido\GraphQL\Parser\Parser;
13			use Youshido\GraphQL\Schema\AbstractSchema;
14			use Youshido\GraphQL\Type\Enum\AbstractEnumType;
15			use Youshido\GraphQL\Type\Scalar\AbstractScalarType;
16			use Youshido\GraphQL\Validator\RequestValidator\RequestValidator;
17
18			class Processor extends BaseProcessor {
19
20			/**
21			* @var \Drupal\graphql\GraphQL\Execution\Reducer
22			*/
23			protected $requestReducer;
24
25			/**
26			* Processor constructor.
27			*
28			* @param \Youshido\GraphQL\Schema\AbstractSchema $schema
29			* @param $query
30			* @param array $variables
31			*/
32			public function __construct(AbstractSchema $schema, $query, array $variables = []) {
33			parent::__construct($schema);
34
35			$parser = new Parser();
36			$request = new Request($parser->parse($query), $variables);
37
38			// Validation of the query payload. This does not take into consideration
39			// any schema specifics and simply validations the structure of the query.
40			$validator = new RequestValidator();
41			$validator->validate($request);
42
43			// Set the request in the execution context.
44			$this->executionContext->setRequest($request);
45
46			// Create a request reducer for our query visitors.
47			$this->requestReducer = new Reducer($this->executionContext);
48			}
49
50			/**
51			* @param \Drupal\graphql\GraphQL\Execution\Visitor\VisitorInterface $visitor
52			* @param callable $callback
53			*
54			* @return null
55			*/
56			public function reduceRequest(VisitorInterface $visitor, callable $callback) {
57			try {
58			$result = $this->requestReducer->reduceRequest($visitor);
59
60			// Call the 'finish' callback. This is useful because that way the
61			// exceptions are caught here and can be written into the execution
62			// context.
63			return $callback($result);
64			}
65			catch (ResolveException $exception) {
66			$this->executionContext->addError($exception);
67			}
68
69			return NULL;
70			}
71
72			/**
73			* @return array\|mixed
74			*/
75			public function resolveRequest() {
76			$output = [];
77
78			if (!$this->executionContext->hasErrors()) {
79			try {
80			$operations = $this->executionContext->getRequest()->getAllOperations();
81
82			foreach ($operations as $query) {
83			if ($result = $this->resolveQuery($query)) {
84			$output = array_replace_recursive($output, $result);
85			};
86			}
87
88			// If the processor found any deferred results, resolve them now.
89			if (!empty($output) && (!empty($this->deferredResultsLeaf) \|\| !empty($this->deferredResultsComplex))) {
90			try {
91			while ($resolver = array_shift($this->deferredResultsComplex)) {
92			$resolver->resolve();
93			}
94
95			// Deferred scalar and enum fields should be resolved last to pick up
96			// as many as possible for a single batch.
97			while ($resolver = array_shift($this->deferredResultsLeaf)) {
98			$resolver->resolve();
99			}
100			}
101			catch (ResolveException $exception) {
102			$this->executionContext->addError($exception);
103			}
104			finally {
105			$output = static::unpackDeferredResults($output);
106			}
107			}
108			}
109			catch (ResolveException $exception) {
110			$this->executionContext->addError($exception);
111			}
112			}
113
114			return $output;
115			}
116
117			/**
118			* {@inheritdoc}
119			*/
120			protected function deferredResolve($resolvedValue, FieldInterface $field, callable $callback) {
121			if ($resolvedValue instanceof DeferredResolverInterface) {
122			$deferredResult = new DeferredResult($resolvedValue, function ($resolvedValue) use ($field, $callback) {
123			// Allow nested deferred resolvers.
124			return $this->deferredResolve($resolvedValue, $field, $callback);
125			});
126
127			// Whenever we stumble upon a deferred resolver, add it to the queue to be
128			// resolved later.
129			$type = $field->getType()->getNamedType();
130			if ($type instanceof AbstractScalarType \|\| $type instanceof AbstractEnumType) {
131			array_push($this->deferredResultsLeaf, $deferredResult);
132			}
133			else {
134			array_push($this->deferredResultsComplex, $deferredResult);
135			}
136
137			return $deferredResult;
138			}
139
140			// For simple values, invoke the callback immediately.
141			return $callback($resolvedValue);
142			}
143
144			}

drupal-graphql / graphql

Pull Request — 8.x-3.x (#519)

Processor::resolveRequest() C

Complexity

Size

Duplication

Importance

How to fix Complexity

Long Method

Duplication Side-by-Side

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