RefResolver::resolveReference() - Code Metrics - Inspection of "better ajv tests compliance" - swaggest/php-json-schema - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#17)

by Viacheslav

created 2018-01-24 07:51 UTC

RefResolver::resolveReference() C

↳ Parent: RefResolver

Complexity

Conditions	19
Paths	96

Size

Total Lines	76
Code Lines	46

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	1	Features	0

Metric	Value
dl	0
loc	76
rs	5.222
c	1
b	1
f	0
cc	19
eloc	46
nc	96
nop	1

How to fix Long Method Complexity

<?php

namespace Swaggest\JsonSchema;

use PhpLang\ScopeExit;
use Swaggest\JsonSchema\Constraint\Ref;
use Swaggest\JsonSchema\RemoteRef\BasicFetcher;

class RefResolver
{
    public $resolutionScope = '';
    public $url;
    /** @var RefResolver */
    private $rootResolver;

    /**
     * @param mixed $resolutionScope
     * @return string previous value
     */
    public function setResolutionScope($resolutionScope)
    {
        $rootResolver = $this->rootResolver ? $this->rootResolver : $this;
        if ($resolutionScope === $rootResolver->resolutionScope) {
            return $resolutionScope;
        }
        $prev = $rootResolver->resolutionScope;
        $rootResolver->resolutionScope = $resolutionScope;
        return $prev;
    }

    /**
     * @return string
     */
    public function getResolutionScope()
    {
        $rootResolver = $this->rootResolver ? $this->rootResolver : $this;
        return $rootResolver->resolutionScope;
    }


    public function updateResolutionScope($id)
    {
        $id = rtrim($id, '#');
        $rootResolver = $this->rootResolver ? $this->rootResolver : $this;
        if (strpos($id, '://') !== false) {
            $prev = $rootResolver->setResolutionScope($id);
        } else {
            $prev = $rootResolver->setResolutionScope(Helper::resolveURI($rootResolver->resolutionScope, $id));
        }

        return $prev;
    }

    public function setupResolutionScope($id, $data)
    {
        $rootResolver = $this->rootResolver ? $this->rootResolver : $this;

        $prev = $rootResolver->updateResolutionScope($id);

        $refParts = explode('#', $rootResolver->resolutionScope, 2);

        if ($refParts[0]) { // external uri
            $resolver = &$rootResolver->remoteRefResolvers[$refParts[0]];
            if ($resolver === null) {
                $resolver = new RefResolver();
                $resolver->rootResolver = $rootResolver;
                $resolver->url = $refParts[0];
                $this->remoteRefResolvers[$refParts[0]] = $resolver;
            }
        } else { // local uri
            $resolver = $this;
        }

        if (empty($refParts[1])) {
            $resolver->rootData = $data;
        } else {
            $refPath = '#' . $refParts[1];
            $resolver->refs[$refPath] = new Ref($refPath, $data);
        }

        return $prev;
    }

    private $rootData;

    /** @var Ref[] */
    private $refs = array();

    /** @var RefResolver[]|null[] */
    private $remoteRefResolvers = array();

    /** @var RemoteRefProvider */
    private $refProvider;

    /**
     * RefResolver constructor.
     * @param JsonSchema $rootData
     */
    public function __construct($rootData = null)
    {
        $this->rootData = $rootData;
    }

    public function setRootData($rootData)
    {
        $this->rootData = $rootData;
        return $this;
    }


    public function setRemoteRefProvider(RemoteRefProvider $provider)
    {
        $this->refProvider = $provider;
        return $this;
    }

    private function getRefProvider()
    {
        if (null === $this->refProvider) {
            $this->refProvider = new BasicFetcher();
        }
        return $this->refProvider;
    }

    /**
     * @param string $referencePath
     * @return Ref
     * @throws InvalidValue
     */
    public function resolveReference($referencePath)
    {
        if ($this->resolutionScope) {
            $referencePath = Helper::resolveURI($this->resolutionScope, $referencePath);
        }

        $refParts = explode('#', $referencePath, 2);
        $url = rtrim($refParts[0], '#');
        $refLocalPath = isset($refParts[1]) ? '#' . $refParts[1] : '#';

        if ($url === $this->url) {
            $referencePath = $refLocalPath;
        }

        /** @var null|Ref $ref */
        $ref = &$this->refs[$referencePath];

        $refResolver = $this;

        if (null === $ref) {
            if ($referencePath[0] === '#') {
                if ($referencePath === '#') {
                    $ref = new Ref($referencePath, $refResolver->rootData);
                } else {
                    $ref = new Ref($referencePath);
                    $path = explode('/', trim($referencePath, '#/'));

                    /** @var JsonSchema $branch */
                    $branch = &$refResolver->rootData;
                    while (!empty($path)) {
                        if (isset($branch->{Schema::ID_D4}) && is_string($branch->{Schema::ID_D4})) {
                            $refResolver->updateResolutionScope($branch->{Schema::ID_D4});
                        }
                        if (isset($branch->{Schema::ID}) && is_string($branch->{Schema::ID})) {
                            $refResolver->updateResolutionScope($branch->{Schema::ID});
                        }

                        $folder = array_shift($path);

                        // unescaping special characters
                        // https://tools.ietf.org/html/draft-ietf-appsawg-json-pointer-07#section-4
                        // https://github.com/json-schema-org/JSON-Schema-Test-Suite/issues/130
                        $folder = str_replace(array('~0', '~1', '%25'), array('~', '/', '%'), $folder);

                        if ($branch instanceof \stdClass && isset($branch->$folder)) {
                            $branch = &$branch->$folder;
                        } elseif (is_array($branch) && isset($branch[$folder])) {
                            $branch = &$branch[$folder];
                        } else {
                            throw new InvalidValue('Could not resolve ' . $referencePath . '@' . $this->getResolutionScope() . ': ' . $folder);
                        }
                    }
                    $ref->setData($branch);
                }
            } else {
                if ($url !== $this->url) {
                    $rootResolver = $this->rootResolver ? $this->rootResolver : $this;
                    /** @var null|RefResolver $refResolver */
                    $refResolver = &$rootResolver->remoteRefResolvers[$url];
                    $this->setResolutionScope($url);
                    if (null === $refResolver) {
                        $rootData = $rootResolver->getRefProvider()->getSchemaData($url);
                        $refResolver = new RefResolver($rootData);
function acceptsInteger($int) { }

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

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
                        $refResolver->rootResolver = $rootResolver;
                        $refResolver->refProvider = $this->refProvider;
                        $refResolver->url = $url;
                        $rootResolver->setResolutionScope($url);
                    }
                }

                $ref = $refResolver->resolveReference($refLocalPath);
            }
        }

        return $ref;
    }


    /**
     * @param $data
     * @param Context $options
     * @param int $nestingLevel
     * @throws Exception
     */
    public function preProcessReferences($data, Context $options, $nestingLevel = 0)
    {
        if ($nestingLevel > 200) {
            throw new Exception('Too deep nesting level', Exception::DEEP_NESTING);
        }
        if (is_array($data)) {
            foreach ($data as $key => $item) {
                $this->preProcessReferences($item, $options, $nestingLevel + 1);
            }
        } elseif ($data instanceof \stdClass) {
            /** @var JsonSchema $data */
            if (
                isset($data->{Schema::ID_D4})
                && is_string($data->{Schema::ID_D4})
                && (($options->version === Schema::VERSION_AUTO) || $options->version === Schema::VERSION_DRAFT_04)
            ) {
                $prev = $this->setupResolutionScope($data->{Schema::ID_D4}, $data);
                /** @noinspection PhpUnusedLocalVariableInspection */
                $_ = new ScopeExit(function () use ($prev, $options) {
$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}
                    $this->setResolutionScope($prev);
                });
            }

            if (isset($data->{Schema::ID})
                && is_string($data->{Schema::ID})
                && (($options->version === Schema::VERSION_AUTO) || $options->version >= Schema::VERSION_DRAFT_06)
            ) {
                $prev = $this->setupResolutionScope($data->{Schema::ID}, $data);
                /** @noinspection PhpUnusedLocalVariableInspection */
                $_ = new ScopeExit(function () use ($prev, $options) {
$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}
                    $this->setResolutionScope($prev);
                });
            }


            foreach ((array)$data as $key => $value) {
                $this->preProcessReferences($value, $options, $nestingLevel + 1);
            }
        }
    }


}

1			<?php
2
3			namespace Swaggest\JsonSchema;
4
5			use PhpLang\ScopeExit;
6			use Swaggest\JsonSchema\Constraint\Ref;
7			use Swaggest\JsonSchema\RemoteRef\BasicFetcher;
8
9			class RefResolver
10			{
11			public $resolutionScope = '';
12			public $url;
13			/** @var RefResolver */
14			private $rootResolver;
15
16			/**
17			* @param mixed $resolutionScope
18			* @return string previous value
19			*/
20			public function setResolutionScope($resolutionScope)
21			{
22			$rootResolver = $this->rootResolver ? $this->rootResolver : $this;
23			if ($resolutionScope === $rootResolver->resolutionScope) {
24			return $resolutionScope;
25			}
26			$prev = $rootResolver->resolutionScope;
27			$rootResolver->resolutionScope = $resolutionScope;
28			return $prev;
29			}
30
31			/**
32			* @return string
33			*/
34			public function getResolutionScope()
35			{
36			$rootResolver = $this->rootResolver ? $this->rootResolver : $this;
37			return $rootResolver->resolutionScope;
38			}
39
40
41			public function updateResolutionScope($id)
42			{
43			$id = rtrim($id, '#');
44			$rootResolver = $this->rootResolver ? $this->rootResolver : $this;
45			if (strpos($id, '://') !== false) {
46			$prev = $rootResolver->setResolutionScope($id);
47			} else {
48			$prev = $rootResolver->setResolutionScope(Helper::resolveURI($rootResolver->resolutionScope, $id));
49			}
50
51			return $prev;
52			}
53
54			public function setupResolutionScope($id, $data)
55			{
56			$rootResolver = $this->rootResolver ? $this->rootResolver : $this;
57
58			$prev = $rootResolver->updateResolutionScope($id);
59
60			$refParts = explode('#', $rootResolver->resolutionScope, 2);
61
62			if ($refParts[0]) { // external uri
63			$resolver = &$rootResolver->remoteRefResolvers[$refParts[0]];
64			if ($resolver === null) {
65			$resolver = new RefResolver();
66			$resolver->rootResolver = $rootResolver;
67			$resolver->url = $refParts[0];
68			$this->remoteRefResolvers[$refParts[0]] = $resolver;
69			}
70			} else { // local uri
71			$resolver = $this;
72			}
73
74			if (empty($refParts[1])) {
75			$resolver->rootData = $data;
76			} else {
77			$refPath = '#' . $refParts[1];
78			$resolver->refs[$refPath] = new Ref($refPath, $data);
79			}
80
81			return $prev;
82			}
83
84			private $rootData;
85
86			/** @var Ref[] */
87			private $refs = array();
88
89			/** @var RefResolver[]\|null[] */
90			private $remoteRefResolvers = array();
91
92			/** @var RemoteRefProvider */
93			private $refProvider;
94
95			/**
96			* RefResolver constructor.
97			* @param JsonSchema $rootData
98			*/
99			public function __construct($rootData = null)
100			{
101			$this->rootData = $rootData;
102			}
103
104			public function setRootData($rootData)
105			{
106			$this->rootData = $rootData;
107			return $this;
108			}
109
110
111			public function setRemoteRefProvider(RemoteRefProvider $provider)
112			{
113			$this->refProvider = $provider;
114			return $this;
115			}
116
117			private function getRefProvider()
118			{
119			if (null === $this->refProvider) {
120			$this->refProvider = new BasicFetcher();
121			}
122			return $this->refProvider;
123			}
124
125			/**
126			* @param string $referencePath
127			* @return Ref
128			* @throws InvalidValue
129			*/
130			public function resolveReference($referencePath)
131			{
132			if ($this->resolutionScope) {
133			$referencePath = Helper::resolveURI($this->resolutionScope, $referencePath);
134			}
135
136			$refParts = explode('#', $referencePath, 2);
137			$url = rtrim($refParts[0], '#');
138			$refLocalPath = isset($refParts[1]) ? '#' . $refParts[1] : '#';
139
140			if ($url === $this->url) {
141			$referencePath = $refLocalPath;
142			}
143
144			/** @var null\|Ref $ref */
145			$ref = &$this->refs[$referencePath];
146
147			$refResolver = $this;
148
149			if (null === $ref) {
150			if ($referencePath[0] === '#') {
151			if ($referencePath === '#') {
152			$ref = new Ref($referencePath, $refResolver->rootData);
153			} else {
154			$ref = new Ref($referencePath);
155			$path = explode('/', trim($referencePath, '#/'));
156
157			/** @var JsonSchema $branch */
158			$branch = &$refResolver->rootData;
159			while (!empty($path)) {
160			if (isset($branch->{Schema::ID_D4}) && is_string($branch->{Schema::ID_D4})) {
161			$refResolver->updateResolutionScope($branch->{Schema::ID_D4});
162			}
163			if (isset($branch->{Schema::ID}) && is_string($branch->{Schema::ID})) {
164			$refResolver->updateResolutionScope($branch->{Schema::ID});
165			}
166
167			$folder = array_shift($path);
168
169			// unescaping special characters
170			// https://tools.ietf.org/html/draft-ietf-appsawg-json-pointer-07#section-4
171			// https://github.com/json-schema-org/JSON-Schema-Test-Suite/issues/130
172			$folder = str_replace(array('~0', '~1', '%25'), array('~', '/', '%'), $folder);
173
174			if ($branch instanceof \stdClass && isset($branch->$folder)) {
175			$branch = &$branch->$folder;
176			} elseif (is_array($branch) && isset($branch[$folder])) {
177			$branch = &$branch[$folder];
178			} else {
179			throw new InvalidValue('Could not resolve ' . $referencePath . '@' . $this->getResolutionScope() . ': ' . $folder);
180			}
181			}
182			$ref->setData($branch);
183			}
184			} else {
185			if ($url !== $this->url) {
186			$rootResolver = $this->rootResolver ? $this->rootResolver : $this;
187			/** @var null\|RefResolver $refResolver */
188			$refResolver = &$rootResolver->remoteRefResolvers[$url];
189			$this->setResolutionScope($url);
190			if (null === $refResolver) {
191			$rootData = $rootResolver->getRefProvider()->getSchemaData($url);
192			$refResolver = new RefResolver($rootData);
			0 ignored issues – show Documentation introduced 2018-01-21 06:56 UTC by Report Bug Copy Issue Report `$rootData` is of type `object<stdClass>\|false`, but the function expects a `object<Swaggest\JsonSchema\JsonSchema>\|null`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
193			$refResolver->rootResolver = $rootResolver;
194			$refResolver->refProvider = $this->refProvider;
195			$refResolver->url = $url;
196			$rootResolver->setResolutionScope($url);
197			}
198			}
199
200			$ref = $refResolver->resolveReference($refLocalPath);
201			}
202			}
203
204			return $ref;
205			}
206
207
208			/**
209			* @param $data
210			* @param Context $options
211			* @param int $nestingLevel
212			* @throws Exception
213			*/
214			public function preProcessReferences($data, Context $options, $nestingLevel = 0)
215			{
216			if ($nestingLevel > 200) {
217			throw new Exception('Too deep nesting level', Exception::DEEP_NESTING);
218			}
219			if (is_array($data)) {
220			foreach ($data as $key => $item) {
221			$this->preProcessReferences($item, $options, $nestingLevel + 1);
222			}
223			} elseif ($data instanceof \stdClass) {
224			/** @var JsonSchema $data */
225			if (
226			isset($data->{Schema::ID_D4})
227			&& is_string($data->{Schema::ID_D4})
228			&& (($options->version === Schema::VERSION_AUTO) \|\| $options->version === Schema::VERSION_DRAFT_04)
229			) {
230			$prev = $this->setupResolutionScope($data->{Schema::ID_D4}, $data);
231			/** @noinspection PhpUnusedLocalVariableInspection */
232			$_ = new ScopeExit(function () use ($prev, $options) {
			0 ignored issues – show Unused Code introduced 2018-01-17 08:44 UTC by Report Bug Copy Issue Report `$_` is not used, you could remove the assignment. This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently. $myVar = 'Value'; $higher = false; if (rand(1, 6) > 3) { $higher = true; } else { $higher = false; } Both the `$myVar` assignment in line 1 and the `$higher` assignment in line 2 are dead. The first because `$myVar` is never used and the second because `$higher` is always overwritten for every possible time line. Loading history...
233			$this->setResolutionScope($prev);
234			});
235			}
236
237			if (isset($data->{Schema::ID})
238			&& is_string($data->{Schema::ID})
239			&& (($options->version === Schema::VERSION_AUTO) \|\| $options->version >= Schema::VERSION_DRAFT_06)
240			) {
241			$prev = $this->setupResolutionScope($data->{Schema::ID}, $data);
242			/** @noinspection PhpUnusedLocalVariableInspection */
243			$_ = new ScopeExit(function () use ($prev, $options) {
			0 ignored issues – show Unused Code introduced 2017-05-22 09:50 UTC by Report Bug Copy Issue Report `$_` is not used, you could remove the assignment. This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently. $myVar = 'Value'; $higher = false; if (rand(1, 6) > 3) { $higher = true; } else { $higher = false; } Both the `$myVar` assignment in line 1 and the `$higher` assignment in line 2 are dead. The first because `$myVar` is never used and the second because `$higher` is always overwritten for every possible time line. Loading history...
244			$this->setResolutionScope($prev);
245			});
246			}
247
248
249			foreach ((array)$data as $key => $value) {
250			$this->preProcessReferences($value, $options, $nestingLevel + 1);
251			}
252			}
253			}
254
255
256			}

swaggest / php-json-schema

Pull Request — master (#17)

RefResolver::resolveReference() C

Complexity

Size

Duplication

Importance

How to fix Long Method Complexity

Long Method

Duplication Side-by-Side

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