Execution::createContext() - Code Metrics - digiaonline/graphql-php - Measure and Improve Code Quality continuously with Scrutinizer

Execution::createContext() C
last analyzed 2022-05-04 10:58 UTC

↳ Parent: Execution

Complexity

Conditions	12
Paths	21

Size

Total Lines	64
Code Lines	34

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	12
eloc	34
nc	21
nop	7
dl	0
loc	64
rs	6.9666
c	0
b	0
f	0

How to fix Long Method Complexity

<?php

namespace Digia\GraphQL\Execution;

use Digia\GraphQL\Error\Handler\ErrorHandlerInterface;
use Digia\GraphQL\Execution\Strategy\FieldCollector;
use Digia\GraphQL\Execution\Strategy\ParallelExecutionStrategy;
use Digia\GraphQL\Execution\Strategy\SerialExecutionStrategy;
use Digia\GraphQL\Language\Node\DocumentNode;
use Digia\GraphQL\Language\Node\FragmentDefinitionNode;
use Digia\GraphQL\Language\Node\FragmentSpreadNode;
use Digia\GraphQL\Language\Node\OperationDefinitionNode;
use Digia\GraphQL\Schema\Schema;
use React\Promise\PromiseInterface;
use function React\Promise\resolve;

class Execution implements ExecutionInterface
{
    /**
     * @inheritdoc
     */
    public function execute(
        Schema $schema,
        DocumentNode $documentNode,
        $rootValue = null,
        $contextValue = null,
        array $variableValues = [],
        ?string $operationName = null,
        ?callable $fieldResolver = null,
        ?ErrorHandlerInterface $errorHandler = null
    ): PromiseInterface {
        try {
            $context = $this->createContext(
                $schema,
                $documentNode,
                $rootValue,
                $contextValue,
                $variableValues,
                $operationName,
                $fieldResolver
            );

            // Return early errors if execution context failed.
            if (!empty($context->getErrors())) {
                return resolve(new ExecutionResult(null, $context->getErrors()));
            }
        } catch (ExecutionException $error) {
            return resolve(new ExecutionResult(null, [$error]));
        }

        $fieldCollector = new FieldCollector($context);

        $data = $this->executeOperation($operationName, $context, $fieldCollector);

        if ($data instanceof PromiseInterface) {
            return $data->then(function ($resolvedData) use ($context) {
                return new ExecutionResult($resolvedData, $context->getErrors());
            });
        }

        if (null !== $errorHandler) {
            foreach ($context->getErrors() as $error) {
                $errorHandler->handleExecutionError($error, $context);
            }
        }

        return resolve(new ExecutionResult($data, $context->getErrors()));
    }

    /**
     * @param null|string      $operationName
     * @param ExecutionContext $context
     * @param FieldCollector   $fieldCollector
     * @return array|mixed|null|PromiseInterface
     */
    protected function executeOperation(
        ?string $operationName,
        ExecutionContext $context,
        FieldCollector $fieldCollector
    ) {
        $strategy = $operationName === 'mutation'
            ? new SerialExecutionStrategy($context, $fieldCollector)
            : new ParallelExecutionStrategy($context, $fieldCollector);

        $result = null;


        try {
            $result = $strategy->execute();
        } catch (ExecutionException $exception) {
            $context->addError($exception);
        } catch (\Throwable $exception) {
            $context->addError(
                new ExecutionException($exception->getMessage(), null, null, null, null, null, $exception)
            );
        }

        if ($result instanceof PromiseInterface) {
            return $result->then(null, function (ExecutionException $exception) use ($context) {
                $context->addError($exception);
                return resolve(null);
            });
        }

        return $result;
    }

    /**
     * @param Schema        $schema
     * @param DocumentNode  $documentNode
     * @param mixed         $rootValue
     * @param mixed         $contextValue
     * @param mixed         $rawVariableValues
     * @param null|string   $operationName
     * @param callable|null $fieldResolver
     * @return ExecutionContext
     * @throws ExecutionException
     */
    protected function createContext(
        Schema $schema,
        DocumentNode $documentNode,
        $rootValue,
        $contextValue,
        $rawVariableValues,
        ?string $operationName = null,
        ?callable $fieldResolver = null
    ): ExecutionContext {
        $errors    = [];
        $fragments = [];
        $operation = null;

        foreach ($documentNode->getDefinitions() as $definition) {
            if ($definition instanceof OperationDefinitionNode) {
                if (null === $operationName && null !== $operation) {
                    throw new ExecutionException(
                        'Must provide operation name if query contains multiple operations.'
                    );
                }

                if (null === $operationName || $definition->getNameValue() === $operationName) {
                    $operation = $definition;
                }

                continue;
            }

            if ($definition instanceof FragmentDefinitionNode || $definition instanceof FragmentSpreadNode) {
                $fragments[$definition->getNameValue()] = $definition;

                continue;
            }
        }

        if (null === $operation) {
            if (null !== $operationName) {
                throw new ExecutionException(sprintf('Unknown operation named "%s".', $operationName));
            }

            throw new ExecutionException('Must provide an operation.');
        }

        $coercedVariableValues = ValuesResolver::coerceVariableValues(
            $schema,
            $operation->getVariableDefinitions(),
            $rawVariableValues
        );

        $variableValues = $coercedVariableValues->getValue();

        if ($coercedVariableValues->hasErrors()) {
            $errors = $coercedVariableValues->getErrors();
        }

        return new ExecutionContext(
            $schema,
            $fragments,
            $rootValue,
            $contextValue,
            $variableValues,
            $fieldResolver,
            $operation,
            $errors
        );
    }
}


1			<?php
2
3			namespace Digia\GraphQL\Execution;
4
5			use Digia\GraphQL\Error\Handler\ErrorHandlerInterface;
6			use Digia\GraphQL\Execution\Strategy\FieldCollector;
7			use Digia\GraphQL\Execution\Strategy\ParallelExecutionStrategy;
8			use Digia\GraphQL\Execution\Strategy\SerialExecutionStrategy;
9			use Digia\GraphQL\Language\Node\DocumentNode;
10			use Digia\GraphQL\Language\Node\FragmentDefinitionNode;
11			use Digia\GraphQL\Language\Node\FragmentSpreadNode;
12			use Digia\GraphQL\Language\Node\OperationDefinitionNode;
13			use Digia\GraphQL\Schema\Schema;
14			use React\Promise\PromiseInterface;
15			use function React\Promise\resolve;
16
17			class Execution implements ExecutionInterface
18			{
19			/**
20			* @inheritdoc
21			*/
22			public function execute(
23			Schema $schema,
24			DocumentNode $documentNode,
25			$rootValue = null,
26			$contextValue = null,
27			array $variableValues = [],
28			?string $operationName = null,
29			?callable $fieldResolver = null,
30			?ErrorHandlerInterface $errorHandler = null
31			): PromiseInterface {
32			try {
33			$context = $this->createContext(
34			$schema,
35			$documentNode,
36			$rootValue,
37			$contextValue,
38			$variableValues,
39			$operationName,
40			$fieldResolver
41			);
42
43			// Return early errors if execution context failed.
44			if (!empty($context->getErrors())) {
45			return resolve(new ExecutionResult(null, $context->getErrors()));
46			}
47			} catch (ExecutionException $error) {
48			return resolve(new ExecutionResult(null, [$error]));
49			}
50
51			$fieldCollector = new FieldCollector($context);
52
53			$data = $this->executeOperation($operationName, $context, $fieldCollector);
54
55			if ($data instanceof PromiseInterface) {
56			return $data->then(function ($resolvedData) use ($context) {
57			return new ExecutionResult($resolvedData, $context->getErrors());
58			});
59			}
60
61			if (null !== $errorHandler) {
62			foreach ($context->getErrors() as $error) {
63			$errorHandler->handleExecutionError($error, $context);
64			}
65			}
66
67			return resolve(new ExecutionResult($data, $context->getErrors()));
68			}
69
70			/**
71			* @param null\|string $operationName
72			* @param ExecutionContext $context
73			* @param FieldCollector $fieldCollector
74			* @return array\|mixed\|null\|PromiseInterface
75			*/
76			protected function executeOperation(
77			?string $operationName,
78			ExecutionContext $context,
79			FieldCollector $fieldCollector
80			) {
81			$strategy = $operationName === 'mutation'
82			? new SerialExecutionStrategy($context, $fieldCollector)
83			: new ParallelExecutionStrategy($context, $fieldCollector);
84
85			$result = null;
			0 ignored issues – show Unused Code introduced 2018-10-31 13:52 UTC by Report Bug Copy Issue Report The assignment to `$result` is dead and can be removed. Loading history...
86
87			try {
88			$result = $strategy->execute();
89			} catch (ExecutionException $exception) {
90			$context->addError($exception);
91			} catch (\Throwable $exception) {
92			$context->addError(
93			new ExecutionException($exception->getMessage(), null, null, null, null, null, $exception)
94			);
95			}
96
97			if ($result instanceof PromiseInterface) {
98			return $result->then(null, function (ExecutionException $exception) use ($context) {
99			$context->addError($exception);
100			return resolve(null);
101			});
102			}
103
104			return $result;
105			}
106
107			/**
108			* @param Schema $schema
109			* @param DocumentNode $documentNode
110			* @param mixed $rootValue
111			* @param mixed $contextValue
112			* @param mixed $rawVariableValues
113			* @param null\|string $operationName
114			* @param callable\|null $fieldResolver
115			* @return ExecutionContext
116			* @throws ExecutionException
117			*/
118			protected function createContext(
119			Schema $schema,
120			DocumentNode $documentNode,
121			$rootValue,
122			$contextValue,
123			$rawVariableValues,
124			?string $operationName = null,
125			?callable $fieldResolver = null
126			): ExecutionContext {
127			$errors = [];
128			$fragments = [];
129			$operation = null;
130
131			foreach ($documentNode->getDefinitions() as $definition) {
132			if ($definition instanceof OperationDefinitionNode) {
133			if (null === $operationName && null !== $operation) {
134			throw new ExecutionException(
135			'Must provide operation name if query contains multiple operations.'
136			);
137			}
138
139			if (null === $operationName \|\| $definition->getNameValue() === $operationName) {
140			$operation = $definition;
141			}
142
143			continue;
144			}
145
146			if ($definition instanceof FragmentDefinitionNode \|\| $definition instanceof FragmentSpreadNode) {
147			$fragments[$definition->getNameValue()] = $definition;
148
149			continue;
150			}
151			}
152
153			if (null === $operation) {
154			if (null !== $operationName) {
155			throw new ExecutionException(sprintf('Unknown operation named "%s".', $operationName));
156			}
157
158			throw new ExecutionException('Must provide an operation.');
159			}
160
161			$coercedVariableValues = ValuesResolver::coerceVariableValues(
162			$schema,
163			$operation->getVariableDefinitions(),
164			$rawVariableValues
165			);
166
167			$variableValues = $coercedVariableValues->getValue();
168
169			if ($coercedVariableValues->hasErrors()) {
170			$errors = $coercedVariableValues->getErrors();
171			}
172
173			return new ExecutionContext(
174			$schema,
175			$fragments,
176			$rootValue,
177			$contextValue,
178			$variableValues,
179			$fieldResolver,
180			$operation,
181			$errors
182			);
183			}
184			}
185

digiaonline / graphql-php

Execution::createContext() C last analyzed 2022-05-04 10:58 UTC

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Execution::createContext() C
last analyzed 2022-05-04 10:58 UTC