Executor::addSchema() - Code Metrics - Inspection of "Merge branch '0.11'" - overblog/GraphQLBundle - Measure and Improve Code Quality continuously with Scrutinizer

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by Jérémiah

created 2018-08-06 11:48 UTC

Executor::addSchema() A

↳ Parent: Executor

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Importance

Changes

Metric	Value
dl	0
loc	6
c	0
b	0
f	0
ccs	3
cts	3
cp	1
rs	10
cc	1
nc	1
nop	2
crap	1

<?php

namespace Overblog\GraphQLBundle\Request;

use GraphQL\Executor\ExecutionResult;
use GraphQL\Executor\Promise\Promise;
use GraphQL\Executor\Promise\PromiseAdapter;
use GraphQL\Type\Schema;
use GraphQL\Validator\DocumentValidator;
use GraphQL\Validator\Rules\DisableIntrospection;
use GraphQL\Validator\Rules\QueryComplexity;
use GraphQL\Validator\Rules\QueryDepth;
use Overblog\GraphQLBundle\Event\Events;
use Overblog\GraphQLBundle\Event\ExecutorArgumentsEvent;
use Overblog\GraphQLBundle\Event\ExecutorContextEvent;
use Overblog\GraphQLBundle\Event\ExecutorResultEvent;
use Overblog\GraphQLBundle\Executor\ExecutorInterface;
use Overblog\GraphQLBundle\Executor\Promise\PromiseAdapterInterface;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

class Executor
{
    const PROMISE_ADAPTER_SERVICE_ID = 'overblog_graphql.promise_adapter';

    /** @var Schema[] */
    private $schemas = [];

    /** @var EventDispatcherInterface|null */
    private $dispatcher;

    /** @var ExecutorInterface */
    private $executor;

    /** @var PromiseAdapter */
    private $promiseAdapter;

    /** @var callable|null */
    private $defaultFieldResolver;

    public function __construct(
        ExecutorInterface $executor,
        EventDispatcherInterface $dispatcher,
        PromiseAdapter $promiseAdapter,
        callable $defaultFieldResolver = null
    ) {
        $this->executor = $executor;
        $this->dispatcher = $dispatcher;
        $this->promiseAdapter = $promiseAdapter;
        $this->defaultFieldResolver = $defaultFieldResolver;
    }

    public function setExecutor(ExecutorInterface $executor)
    {
        $this->executor = $executor;

        return $this;
    }

    public function setPromiseAdapter(PromiseAdapter $promiseAdapter)
    {
        $this->promiseAdapter = $promiseAdapter;

        return $this;
    }

    /**
     * @param string $name
     * @param Schema $schema
     *
     * @return $this
     */
    public function addSchema($name, Schema $schema)
    {
        $this->schemas[$name] = $schema;

        return $this;
    }

    /**
     * @param string|null $name
     *
     * @return Schema
     */
    public function getSchema($name = null)
    {
        if (empty($this->schemas)) {
            throw new \RuntimeException('At least one schema should be declare.');
        }

        if (null === $name) {
            $schema = array_values($this->schemas)[0];
        } else {
            if (!isset($this->schemas[$name])) {
                throw new NotFoundHttpException(sprintf('Could not found "%s" schema.', $name));
            }
            $schema = $this->schemas[$name];
        }

        return $schema;
    }

    public function setMaxQueryDepth($maxQueryDepth)
    {
        /** @var QueryDepth $queryDepth */
        $queryDepth = DocumentValidator::getRule('QueryDepth');
        $queryDepth->setMaxQueryDepth($maxQueryDepth);
    }

    public function setMaxQueryComplexity($maxQueryComplexity)
    {
        /** @var QueryComplexity $queryComplexity */
        $queryComplexity = DocumentValidator::getRule('QueryComplexity');
        $queryComplexity->setMaxQueryComplexity($maxQueryComplexity);
    }

    public function disableIntrospectionQuery()
    {
        DocumentValidator::addRule(new DisableIntrospection());
    }

    /**
     * @param null|string                    $schemaName
     * @param array                          $request
     * @param null|array|\ArrayObject|object $rootValue
     *
     * @return ExecutionResult
     */
    public function execute($schemaName, array $request, $rootValue = null)
    {
        $executorArgumentsEvent = $this->preExecute(
            $this->getSchema($schemaName),
            isset($request[ParserInterface::PARAM_QUERY]) ? $request[ParserInterface::PARAM_QUERY] : null,
            new \ArrayObject(),
            $rootValue,
            $request[ParserInterface::PARAM_VARIABLES],
            isset($request[ParserInterface::PARAM_OPERATION_NAME]) ? $request[ParserInterface::PARAM_OPERATION_NAME] : null
        );

        $executorArgumentsEvent->getSchema()->processExtensions();

        $result = $this->executor->execute(
            $executorArgumentsEvent->getSchema(),
            $executorArgumentsEvent->getRequestString(),
            $executorArgumentsEvent->getRootValue(),
            $executorArgumentsEvent->getContextValue(),
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
            $executorArgumentsEvent->getVariableValue(),
            $executorArgumentsEvent->getOperationName()
        );

        $result = $this->postExecute($result);

        return $result;
    }

    /**
     * @param Schema       $schema
     * @param string       $requestString
     * @param \ArrayObject $contextValue
     * @param mixed        $rootValue
     * @param array|null   $variableValue
     * @param string|null  $operationName
     *
     * @return ExecutorArgumentsEvent
     */
    private function preExecute(
        Schema $schema,
        $requestString,
        \ArrayObject $contextValue,
        $rootValue = null,
        array $variableValue = null,
        $operationName = null
    ) {
        $this->checkPromiseAdapter();

        $this->executor->setPromiseAdapter($this->promiseAdapter);
        // this is needed when not using only generated types
        if ($this->defaultFieldResolver) {
            $this->executor->setDefaultFieldResolver($this->defaultFieldResolver);
        }
        $this->dispatcher->dispatch(Events::EXECUTOR_CONTEXT, new ExecutorContextEvent($contextValue));

        return $this->dispatcher->dispatch(
            Events::PRE_EXECUTOR,
            ExecutorArgumentsEvent::create($schema, $requestString, $contextValue, $rootValue, $variableValue, $operationName)

        );
    }

    /**
     * @param ExecutionResult|Promise $result
     *
     * @return ExecutionResult
     */
    private function postExecute($result)
    {
        if ($result instanceof Promise) {
            $result = $this->promiseAdapter->wait($result);
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
        }

        $this->checkExecutionResult($result);

        return  $this->dispatcher->dispatch(Events::POST_EXECUTOR, new ExecutorResultEvent($result))->getResult();
    }

    private function checkPromiseAdapter()
    {
        if ($this->promiseAdapter && !$this->promiseAdapter instanceof PromiseAdapterInterface && !is_callable([$this->promiseAdapter, 'wait'])) {
            throw new \RuntimeException(
                sprintf(
                    'PromiseAdapter should be an object instantiating "%s" or "%s" with a "wait" method.',
                    PromiseAdapterInterface::class,
                    PromiseAdapter::class
                )
            );
        }
    }

    private function checkExecutionResult($result)
    {
        if (!is_object($result) || !$result instanceof ExecutionResult) {
            throw new \RuntimeException(
                sprintf('Execution result should be an object instantiating "%s".', ExecutionResult::class)
            );
        }
    }
}


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Executor::addSchema() A

Complexity

Size

Duplication

Code Coverage

Importance

Available Fixes

1		<?php
2
3		namespace Overblog\GraphQLBundle\Request;
4
5		use GraphQL\Executor\ExecutionResult;
6		use GraphQL\Executor\Promise\Promise;
7		use GraphQL\Executor\Promise\PromiseAdapter;
8		use GraphQL\Type\Schema;
9		use GraphQL\Validator\DocumentValidator;
10		use GraphQL\Validator\Rules\DisableIntrospection;
11		use GraphQL\Validator\Rules\QueryComplexity;
12		use GraphQL\Validator\Rules\QueryDepth;
13		use Overblog\GraphQLBundle\Event\Events;
14		use Overblog\GraphQLBundle\Event\ExecutorArgumentsEvent;
15		use Overblog\GraphQLBundle\Event\ExecutorContextEvent;
16		use Overblog\GraphQLBundle\Event\ExecutorResultEvent;
17		use Overblog\GraphQLBundle\Executor\ExecutorInterface;
18		use Overblog\GraphQLBundle\Executor\Promise\PromiseAdapterInterface;
19		use Symfony\Component\EventDispatcher\EventDispatcherInterface;
20		use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
21
22		class Executor
23		{
24		const PROMISE_ADAPTER_SERVICE_ID = 'overblog_graphql.promise_adapter';
25
26		/** @var Schema[] */
27		private $schemas = [];
28
29		/** @var EventDispatcherInterface\|null */
30		private $dispatcher;
31
32		/** @var ExecutorInterface */
33		private $executor;
34
35		/** @var PromiseAdapter */
36		private $promiseAdapter;
37
38		/** @var callable\|null */
39		private $defaultFieldResolver;
40
41	97	public function __construct(
42		ExecutorInterface $executor,
43		EventDispatcherInterface $dispatcher,
44		PromiseAdapter $promiseAdapter,
45		callable $defaultFieldResolver = null
46		) {
47	97	$this->executor = $executor;
48	97	$this->dispatcher = $dispatcher;
49	97	$this->promiseAdapter = $promiseAdapter;
50	97	$this->defaultFieldResolver = $defaultFieldResolver;
51	97	}
52
53	2	public function setExecutor(ExecutorInterface $executor)
54		{
55	2	$this->executor = $executor;
56
57	2	return $this;
58		}
59
60	1	public function setPromiseAdapter(PromiseAdapter $promiseAdapter)
61		{
62	1	$this->promiseAdapter = $promiseAdapter;
63
64	1	return $this;
65		}
66
67		/**
68		* @param string $name
69		* @param Schema $schema
70		*
71		* @return $this
72		*/
73	89	public function addSchema($name, Schema $schema)
74		{
75	89	$this->schemas[$name] = $schema;
76
77	89	return $this;
78		}
79
80		/**
81		* @param string\|null $name
82		*
83		* @return Schema
84		*/
85	85	public function getSchema($name = null)
86		{
87	85	if (empty($this->schemas)) {
88	1	throw new \RuntimeException('At least one schema should be declare.');
89		}
90
91	84	if (null === $name) {
92	81	$schema = array_values($this->schemas)[0];
93		} else {
94	3	if (!isset($this->schemas[$name])) {
95	1	throw new NotFoundHttpException(sprintf('Could not found "%s" schema.', $name));
96		}
97	2	$schema = $this->schemas[$name];
98		}
99
100	83	return $schema;
101		}
102
103	93	public function setMaxQueryDepth($maxQueryDepth)
104		{
105		/** @var QueryDepth $queryDepth */
106	93	$queryDepth = DocumentValidator::getRule('QueryDepth');
107	93	$queryDepth->setMaxQueryDepth($maxQueryDepth);
108	93	}
109
110	93	public function setMaxQueryComplexity($maxQueryComplexity)
111		{
112		/** @var QueryComplexity $queryComplexity */
113	93	$queryComplexity = DocumentValidator::getRule('QueryComplexity');
114	93	$queryComplexity->setMaxQueryComplexity($maxQueryComplexity);
115	93	}
116
117	1	public function disableIntrospectionQuery()
118		{
119	1	DocumentValidator::addRule(new DisableIntrospection());
120	1	}
121
122		/**
123		* @param null\|string $schemaName
124		* @param array $request
125		* @param null\|array\|\ArrayObject\|object $rootValue
126		*
127		* @return ExecutionResult
128		*/
129	83	public function execute($schemaName, array $request, $rootValue = null)
130		{
131	83	$executorArgumentsEvent = $this->preExecute(
132	83	$this->getSchema($schemaName),
133	82	isset($request[ParserInterface::PARAM_QUERY]) ? $request[ParserInterface::PARAM_QUERY] : null,
134	82	new \ArrayObject(),
135	82	$rootValue,
136	82	$request[ParserInterface::PARAM_VARIABLES],
137	82	isset($request[ParserInterface::PARAM_OPERATION_NAME]) ? $request[ParserInterface::PARAM_OPERATION_NAME] : null
138		);
139
140	81	$executorArgumentsEvent->getSchema()->processExtensions();
141
142	81	$result = $this->executor->execute(
143	81	$executorArgumentsEvent->getSchema(),
144	81	$executorArgumentsEvent->getRequestString(),
145	81	$executorArgumentsEvent->getRootValue(),
146	81	$executorArgumentsEvent->getContextValue(),
		0 ignored issues – show Documentation introduced 2017-12-30 11:00 UTC by Report Bug Copy Issue Report `$executorArgumentsEvent->getContextValue()` is of type `object<ArrayObject>`, but the function expects a `null\|array`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
147	81	$executorArgumentsEvent->getVariableValue(),
148	81	$executorArgumentsEvent->getOperationName()
149		);
150
151	81	$result = $this->postExecute($result);
152
153	77	return $result;
154		}
155
156		/**
157		* @param Schema $schema
158		* @param string $requestString
159		* @param \ArrayObject $contextValue
160		* @param mixed $rootValue
161		* @param array\|null $variableValue
162		* @param string\|null $operationName
163		*
164		* @return ExecutorArgumentsEvent
165		*/
166	82	private function preExecute(
167		Schema $schema,
168		$requestString,
169		\ArrayObject $contextValue,
170		$rootValue = null,
171		array $variableValue = null,
172		$operationName = null
173		) {
174	82	$this->checkPromiseAdapter();
175
176	81	$this->executor->setPromiseAdapter($this->promiseAdapter);
177		// this is needed when not using only generated types
178	81	if ($this->defaultFieldResolver) {
179	79	$this->executor->setDefaultFieldResolver($this->defaultFieldResolver);
180		}
181	81	$this->dispatcher->dispatch(Events::EXECUTOR_CONTEXT, new ExecutorContextEvent($contextValue));
182
183	81	return $this->dispatcher->dispatch(
184	81	Events::PRE_EXECUTOR,
185	81	ExecutorArgumentsEvent::create($schema, $requestString, $contextValue, $rootValue, $variableValue, $operationName)
		0 ignored issues – show Compatibility introduced 2018-02-11 17:44 UTC by Report Bug Copy Issue Report `$schema` of type `object<GraphQL\Type\Schema>` is not a sub-type of `object<Overblog\GraphQLB...\Type\ExtensibleSchema>`. It seems like you assume a child class of the class `GraphQL\Type\Schema` to be always present. This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass. Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type. Loading history...
186		);
187		}
188
189		/**
190		* @param ExecutionResult\|Promise $result
191		*
192		* @return ExecutionResult
193		*/
194	81	private function postExecute($result)
195		{
196	81	if ($result instanceof Promise) {
197	79	$result = $this->promiseAdapter->wait($result);
		0 ignored issues – show Bug introduced 2017-02-10 16:24 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `GraphQL\Executor\Promise\PromiseAdapter` as the method `wait()` does only exist in the following implementations of said interface: `GraphQL\Executor\Promise...pter\SyncPromiseAdapter`, `Overblog\GraphQLBundle\E...ter\ReactPromiseAdapter`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
198		}
199
200	81	$this->checkExecutionResult($result);
201
202	79	return $this->dispatcher->dispatch(Events::POST_EXECUTOR, new ExecutorResultEvent($result))->getResult();
203		}
204
205	82	private function checkPromiseAdapter()
206		{
207	82	if ($this->promiseAdapter && !$this->promiseAdapter instanceof PromiseAdapterInterface && !is_callable([$this->promiseAdapter, 'wait'])) {
208	1	throw new \RuntimeException(
209	1	sprintf(
210	1	'PromiseAdapter should be an object instantiating "%s" or "%s" with a "wait" method.',
211	1	PromiseAdapterInterface::class,
212	1	PromiseAdapter::class
213		)
214		);
215		}
216	81	}
217
218	81	private function checkExecutionResult($result)
219		{
220	81	if (!is_object($result) \|\| !$result instanceof ExecutionResult) {
221	2	throw new \RuntimeException(
222	2	sprintf('Execution result should be an object instantiating "%s".', ExecutionResult::class)
223		);
224		}
225	79	}
226		}
227

overblog / GraphQLBundle

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Executor::addSchema() A

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