AbstractClassMetadataFactory::__construct() - Code Metrics - Inspection of "Introduce ProxyNamingInflector interface to resolv..." - Majkl578/doctrine-persistence - Measure and Improve Code Quality continuously with Scrutinizer

Failed Conditions

Push — ProxyNamingInflector ( 293790 )

by Michael

created 2019-04-10 13:51 UTC

AbstractClassMetadataFactory::__construct() A

↳ Parent: AbstractClassMetadataFactory

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	2

Importance

Changes

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

<?php

namespace Doctrine\Common\Persistence\Mapping;

use Doctrine\Common\Cache\Cache;
use Doctrine\Common\Persistence\Mapping\Driver\MappingDriver;
use Doctrine\Persistence\Proxy\DefaultProxyNamingInflector;
use Doctrine\Persistence\Proxy\ProxyNamingInflector;
use ReflectionException;
use function array_reverse;
use function array_unshift;
use function explode;
use function strpos;

/**
 * The ClassMetadataFactory is used to create ClassMetadata objects that contain all the
 * metadata mapping informations of a class which describes how a class should be mapped
 * to a relational database.
 *
 * This class was abstracted from the ORM ClassMetadataFactory.
 */
abstract class AbstractClassMetadataFactory implements ClassMetadataFactory
{
    /**
     * Salt used by specific Object Manager implementation.
     *
     * @var string
     */
    protected $cacheSalt = '$CLASSMETADATA';

    /** @var Cache|null */
    private $cacheDriver;

    /** @var ClassMetadata[] */
    private $loadedMetadata = [];

    /** @var bool */
    protected $initialized = false;

    /** @var ReflectionService|null */
    private $reflectionService = null;

    /** @var ProxyNamingInflector|null */
    private $proxyNamingInflector;

    public function __construct(?ProxyNamingInflector $proxyNamingInflector = null)
    {
        $this->proxyNamingInflector = $proxyNamingInflector ?? new DefaultProxyNamingInflector();
    }

    /**
     * Sets the cache driver used by the factory to cache ClassMetadata instances.
     *
     * @return void
     */
    public function setCacheDriver(?Cache $cacheDriver = null)
    {
        $this->cacheDriver = $cacheDriver;
    }

    /**
     * Gets the cache driver used by the factory to cache ClassMetadata instances.
     *
     * @return Cache|null
     */
    public function getCacheDriver()
    {
        return $this->cacheDriver;
    }

    /**
     * Returns an array of all the loaded metadata currently in memory.
     *
     * @return ClassMetadata[]
     */
    public function getLoadedMetadata()
    {
        return $this->loadedMetadata;
    }

    /**
     * Forces the factory to load the metadata of all classes known to the underlying
     * mapping driver.
     *
     * @return ClassMetadata[] The ClassMetadata instances of all mapped classes.
     */
    public function getAllMetadata()
    {
        if (! $this->initialized) {
            $this->initialize();
        }

        $driver   = $this->getDriver();
        $metadata = [];
        foreach ($driver->getAllClassNames() as $className) {
            $metadata[] = $this->getMetadataFor($className);
        }

        return $metadata;
    }

    /**
     * Lazy initialization of this stuff, especially the metadata driver,
     * since these are not needed at all when a metadata cache is active.
     *
     * @return void
     */
    abstract protected function initialize();

    /**
     * Gets the fully qualified class-name from the namespace alias.
     *
     * @param string $namespaceAlias
     * @param string $simpleClassName
     *
     * @return string
     */
    abstract protected function getFqcnFromAlias($namespaceAlias, $simpleClassName);

    /**
     * Returns the mapping driver implementation.
     *
     * @return MappingDriver
     */
    abstract protected function getDriver();

    /**
     * Wakes up reflection after ClassMetadata gets unserialized from cache.
     *
     * @return void
     */
    abstract protected function wakeupReflection(ClassMetadata $class, ReflectionService $reflService);

    /**
     * Initializes Reflection after ClassMetadata was constructed.
     *
     * @return void
     */
    abstract protected function initializeReflection(ClassMetadata $class, ReflectionService $reflService);

    /**
     * Checks whether the class metadata is an entity.
     *
     * This method should return false for mapped superclasses or embedded classes.
     *
     * @return bool
     */
    abstract protected function isEntity(ClassMetadata $class);

    /**
     * Gets the class metadata descriptor for a class.
     *
     * @param string $className The name of the class.
     *
     * @return ClassMetadata
     *
     * @throws ReflectionException
     * @throws MappingException
     */
    public function getMetadataFor($className)
    {
        if (isset($this->loadedMetadata[$className])) {
            return $this->loadedMetadata[$className];
        }

        // Check for namespace alias
        if (strpos($className, ':') !== false) {
            [$namespaceAlias, $simpleClassName] = explode(':', $className, 2);

            $realClassName = $this->getFqcnFromAlias($namespaceAlias, $simpleClassName);
        } else {
            $realClassName = $this->getRealClass($className);
        }

        if (isset($this->loadedMetadata[$realClassName])) {
            // We do not have the alias name in the map, include it
            return $this->loadedMetadata[$className] = $this->loadedMetadata[$realClassName];
        }

        $loadingException = null;


        try {
            if ($this->cacheDriver) {
                $cached = $this->cacheDriver->fetch($realClassName . $this->cacheSalt);
                if ($cached instanceof ClassMetadata) {
                    $this->loadedMetadata[$realClassName] = $cached;

                    $this->wakeupReflection($cached, $this->getReflectionService());
                } else {
                    foreach ($this->loadMetadata($realClassName) as $loadedClassName) {
                        $this->cacheDriver->save(
                            $loadedClassName . $this->cacheSalt,
                            $this->loadedMetadata[$loadedClassName]
                        );
                    }
                }
            } else {
                $this->loadMetadata($realClassName);
            }
        } catch (MappingException $loadingException) {
            $fallbackMetadataResponse = $this->onNotFoundMetadata($realClassName);
class A
{
    function getObject()
    {
        return null;
    }

}

$a = new A();
$object = $a->getObject();

            if (! $fallbackMetadataResponse) {

                throw $loadingException;
            }

            $this->loadedMetadata[$realClassName] = $fallbackMetadataResponse;
        }

        if ($className !== $realClassName) {
            // We do not have the alias name in the map, include it
            $this->loadedMetadata[$className] = $this->loadedMetadata[$realClassName];
        }

        return $this->loadedMetadata[$className];
    }

    /**
     * Checks whether the factory has the metadata for a class loaded already.
     *
     * @param string $className
     *
     * @return bool TRUE if the metadata of the class in question is already loaded, FALSE otherwise.
     */
    public function hasMetadataFor($className)
    {
        return isset($this->loadedMetadata[$className]);
    }

    /**
     * Sets the metadata descriptor for a specific class.
     *
     * NOTE: This is only useful in very special cases, like when generating proxy classes.
     *
     * @param string        $className
     * @param ClassMetadata $class
     *
     * @return void
     */
    public function setMetadataFor($className, $class)
    {
        $this->loadedMetadata[$className] = $class;
    }

    /**
     * Gets an array of parent classes for the given entity class.
     *
     * @param string $name
     *
     * @return string[]
     */
    protected function getParentClasses($name)
    {
        // Collect parent classes, ignoring transient (not-mapped) classes.
        $parentClasses = [];

        foreach (array_reverse($this->getReflectionService()->getParentClasses($name)) as $parentClass) {
            if ($this->getDriver()->isTransient($parentClass)) {
                continue;
            }

            $parentClasses[] = $parentClass;
        }

        return $parentClasses;
    }

    /**
     * Loads the metadata of the class in question and all it's ancestors whose metadata
     * is still not loaded.
     *
     * Important: The class $name does not necessarily exist at this point here.
     * Scenarios in a code-generation setup might have access to XML/YAML
     * Mapping files without the actual PHP code existing here. That is why the
     * {@see Doctrine\Common\Persistence\Mapping\ReflectionService} interface
     * should be used for reflection.
     *
     * @param string $name The name of the class for which the metadata should get loaded.
     *
     * @return string[]
     */
    protected function loadMetadata($name)
    {
        if (! $this->initialized) {
            $this->initialize();
        }

        $loaded = [];

        $parentClasses   = $this->getParentClasses($name);
        $parentClasses[] = $name;

        // Move down the hierarchy of parent classes, starting from the topmost class
        $parent          = null;
        $rootEntityFound = false;
        $visited         = [];
        $reflService     = $this->getReflectionService();
        foreach ($parentClasses as $className) {
            if (isset($this->loadedMetadata[$className])) {
                $parent = $this->loadedMetadata[$className];
                if ($this->isEntity($parent)) {
                    $rootEntityFound = true;
                    array_unshift($visited, $className);
                }
                continue;
            }

            $class = $this->newClassMetadataInstance($className);
            $this->initializeReflection($class, $reflService);

            $this->doLoadMetadata($class, $parent, $rootEntityFound, $visited);

            $this->loadedMetadata[$className] = $class;

            $parent = $class;

            if ($this->isEntity($class)) {
                $rootEntityFound = true;
                array_unshift($visited, $className);
            }

            $this->wakeupReflection($class, $reflService);

            $loaded[] = $className;
        }

        return $loaded;
    }

    /**
     * Provides a fallback hook for loading metadata when loading failed due to reflection/mapping exceptions
     *
     * Override this method to implement a fallback strategy for failed metadata loading
     *
     * @param string $className
     *
     * @return ClassMetadata|null
     */
    protected function onNotFoundMetadata($className)
    {
        return null;
    }

    /**
     * Actually loads the metadata from the underlying metadata.
     *
     * @param ClassMetadata      $class
     * @param ClassMetadata|null $parent
     * @param bool               $rootEntityFound
     * @param string[]           $nonSuperclassParents All parent class names
     *                                                 that are not marked as mapped superclasses.
     *
     * @return void
     */
    abstract protected function doLoadMetadata($class, $parent, $rootEntityFound, array $nonSuperclassParents);

    /**
     * Creates a new ClassMetadata instance for the given class name.
     *
     * @param string $className
     *
     * @return ClassMetadata
     */
    abstract protected function newClassMetadataInstance($className);

    /**
     * {@inheritDoc}
     */
    public function isTransient($class)
    {
        if (! $this->initialized) {
            $this->initialize();
        }

        // Check for namespace alias
        if (strpos($class, ':') !== false) {
            [$namespaceAlias, $simpleClassName] = explode(':', $class, 2);
            $class                              = $this->getFqcnFromAlias($namespaceAlias, $simpleClassName);
        }

        return $this->getDriver()->isTransient($class);
    }

    /**
     * Sets the reflectionService.
     *
     * @return void
     */
    public function setReflectionService(ReflectionService $reflectionService)
    {
        $this->reflectionService = $reflectionService;
    }

    /**
     * Gets the reflection service associated with this metadata factory.
     *
     * @return ReflectionService
     */
    public function getReflectionService()
    {
        if ($this->reflectionService === null) {
            $this->reflectionService = new RuntimeReflectionService();
        }
        return $this->reflectionService;
    }

    /**
     * Gets the real class name of a class name that could be a proxy.
     */
    private function getRealClass(string $class) : string
    {
        if ($this->proxyNamingInflector === null) {
            $this->proxyNamingInflector = new DefaultProxyNamingInflector();
        }

        return $this->proxyNamingInflector->getRealClassName($class);
    }
}


1		<?php
2
3		namespace Doctrine\Common\Persistence\Mapping;
4
5		use Doctrine\Common\Cache\Cache;
6		use Doctrine\Common\Persistence\Mapping\Driver\MappingDriver;
7		use Doctrine\Persistence\Proxy\DefaultProxyNamingInflector;
8		use Doctrine\Persistence\Proxy\ProxyNamingInflector;
9		use ReflectionException;
10		use function array_reverse;
11		use function array_unshift;
12		use function explode;
13		use function strpos;
14
15		/**
16		* The ClassMetadataFactory is used to create ClassMetadata objects that contain all the
17		* metadata mapping informations of a class which describes how a class should be mapped
18		* to a relational database.
19		*
20		* This class was abstracted from the ORM ClassMetadataFactory.
21		*/
22		abstract class AbstractClassMetadataFactory implements ClassMetadataFactory
23		{
24		/**
25		* Salt used by specific Object Manager implementation.
26		*
27		* @var string
28		*/
29		protected $cacheSalt = '$CLASSMETADATA';
30
31		/** @var Cache\|null */
32		private $cacheDriver;
33
34		/** @var ClassMetadata[] */
35		private $loadedMetadata = [];
36
37		/** @var bool */
38		protected $initialized = false;
39
40		/** @var ReflectionService\|null */
41		private $reflectionService = null;
42
43		/** @var ProxyNamingInflector\|null */
44		private $proxyNamingInflector;
45
46		public function __construct(?ProxyNamingInflector $proxyNamingInflector = null)
47		{
48		$this->proxyNamingInflector = $proxyNamingInflector ?? new DefaultProxyNamingInflector();
49		}
50
51		/**
52		* Sets the cache driver used by the factory to cache ClassMetadata instances.
53		*
54		* @return void
55		*/
56	4	public function setCacheDriver(?Cache $cacheDriver = null)
57		{
58	4	$this->cacheDriver = $cacheDriver;
59	4	}
60
61		/**
62		* Gets the cache driver used by the factory to cache ClassMetadata instances.
63		*
64		* @return Cache\|null
65		*/
66	1	public function getCacheDriver()
67		{
68	1	return $this->cacheDriver;
69		}
70
71		/**
72		* Returns an array of all the loaded metadata currently in memory.
73		*
74		* @return ClassMetadata[]
75		*/
76		public function getLoadedMetadata()
77		{
78		return $this->loadedMetadata;
79		}
80
81		/**
82		* Forces the factory to load the metadata of all classes known to the underlying
83		* mapping driver.
84		*
85		* @return ClassMetadata[] The ClassMetadata instances of all mapped classes.
86		*/
87		public function getAllMetadata()
88		{
89		if (! $this->initialized) {
90		$this->initialize();
91		}
92
93		$driver = $this->getDriver();
94		$metadata = [];
95		foreach ($driver->getAllClassNames() as $className) {
96		$metadata[] = $this->getMetadataFor($className);
97		}
98
99		return $metadata;
100		}
101
102		/**
103		* Lazy initialization of this stuff, especially the metadata driver,
104		* since these are not needed at all when a metadata cache is active.
105		*
106		* @return void
107		*/
108		abstract protected function initialize();
109
110		/**
111		* Gets the fully qualified class-name from the namespace alias.
112		*
113		* @param string $namespaceAlias
114		* @param string $simpleClassName
115		*
116		* @return string
117		*/
118		abstract protected function getFqcnFromAlias($namespaceAlias, $simpleClassName);
119
120		/**
121		* Returns the mapping driver implementation.
122		*
123		* @return MappingDriver
124		*/
125		abstract protected function getDriver();
126
127		/**
128		* Wakes up reflection after ClassMetadata gets unserialized from cache.
129		*
130		* @return void
131		*/
132		abstract protected function wakeupReflection(ClassMetadata $class, ReflectionService $reflService);
133
134		/**
135		* Initializes Reflection after ClassMetadata was constructed.
136		*
137		* @return void
138		*/
139		abstract protected function initializeReflection(ClassMetadata $class, ReflectionService $reflService);
140
141		/**
142		* Checks whether the class metadata is an entity.
143		*
144		* This method should return false for mapped superclasses or embedded classes.
145		*
146		* @return bool
147		*/
148		abstract protected function isEntity(ClassMetadata $class);
149
150		/**
151		* Gets the class metadata descriptor for a class.
152		*
153		* @param string $className The name of the class.
154		*
155		* @return ClassMetadata
156		*
157		* @throws ReflectionException
158		* @throws MappingException
159		*/
160	10	public function getMetadataFor($className)
161		{
162	10	if (isset($this->loadedMetadata[$className])) {
163		return $this->loadedMetadata[$className];
164		}
165
166		// Check for namespace alias
167	10	if (strpos($className, ':') !== false) {
168	2	[$namespaceAlias, $simpleClassName] = explode(':', $className, 2);
169
170	2	$realClassName = $this->getFqcnFromAlias($namespaceAlias, $simpleClassName);
171		} else {
172	8	$realClassName = $this->getRealClass($className);
173		}
174
175	10	if (isset($this->loadedMetadata[$realClassName])) {
176		// We do not have the alias name in the map, include it
177		return $this->loadedMetadata[$className] = $this->loadedMetadata[$realClassName];
178		}
179
180	10	$loadingException = null;
		0 ignored issues – show Unused Code introduced 2018-06-09 21:36 UTC by Report Bug Copy Issue Report The assignment to `$loadingException` is dead and can be removed. Loading history...
181
182		try {
183	10	if ($this->cacheDriver) {
184	3	$cached = $this->cacheDriver->fetch($realClassName . $this->cacheSalt);
185	3	if ($cached instanceof ClassMetadata) {
186	1	$this->loadedMetadata[$realClassName] = $cached;
187
188	1	$this->wakeupReflection($cached, $this->getReflectionService());
189		} else {
190	2	foreach ($this->loadMetadata($realClassName) as $loadedClassName) {
191	1	$this->cacheDriver->save(
192	1	$loadedClassName . $this->cacheSalt,
193	2	$this->loadedMetadata[$loadedClassName]
194		);
195		}
196		}
197		} else {
198	9	$this->loadMetadata($realClassName);
199		}
200	5	} catch (MappingException $loadingException) {
201	5	$fallbackMetadataResponse = $this->onNotFoundMetadata($realClassName);
		0 ignored issues – show Bug introduced 2018-06-09 21:36 UTC by Report Bug Copy Issue Report Are you sure the assignment to `$fallbackMetadataResponse` is correct as `$this->onNotFoundMetadata($realClassName)` targeting `Doctrine\Common\Persiste...y::onNotFoundMetadata()` seems to always return null. This check looks for function or method calls that always return null and whose return value is assigned to a variable. class A { function getObject() { return null; } } $a = new A(); $object = $a->getObject(); The method `getObject()` can return nothing but null, so it makes no sense to assign that value to a variable. The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes. Loading history...
202
203	5	if (! $fallbackMetadataResponse) {
		0 ignored issues – show introduced 2018-10-30 00:11 UTC by Report Bug Copy Issue Report `$fallbackMetadataResponse` is of type `null`, thus it always evaluated to `false`. Loading history...
204	3	throw $loadingException;
205		}
206
207	2	$this->loadedMetadata[$realClassName] = $fallbackMetadataResponse;
208		}
209
210	7	if ($className !== $realClassName) {
211		// We do not have the alias name in the map, include it
212	1	$this->loadedMetadata[$className] = $this->loadedMetadata[$realClassName];
213		}
214
215	7	return $this->loadedMetadata[$className];
216		}
217
218		/**
219		* Checks whether the factory has the metadata for a class loaded already.
220		*
221		* @param string $className
222		*
223		* @return bool TRUE if the metadata of the class in question is already loaded, FALSE otherwise.
224		*/
225	3	public function hasMetadataFor($className)
226		{
227	3	return isset($this->loadedMetadata[$className]);
228		}
229
230		/**
231		* Sets the metadata descriptor for a specific class.
232		*
233		* NOTE: This is only useful in very special cases, like when generating proxy classes.
234		*
235		* @param string $className
236		* @param ClassMetadata $class
237		*
238		* @return void
239		*/
240		public function setMetadataFor($className, $class)
241		{
242		$this->loadedMetadata[$className] = $class;
243		}
244
245		/**
246		* Gets an array of parent classes for the given entity class.
247		*
248		* @param string $name
249		*
250		* @return string[]
251		*/
252	9	protected function getParentClasses($name)
253		{
254		// Collect parent classes, ignoring transient (not-mapped) classes.
255	9	$parentClasses = [];
256
257	9	foreach (array_reverse($this->getReflectionService()->getParentClasses($name)) as $parentClass) {
258	3	if ($this->getDriver()->isTransient($parentClass)) {
259		continue;
260		}
261
262	3	$parentClasses[] = $parentClass;
263		}
264
265	4	return $parentClasses;
266		}
267
268		/**
269		* Loads the metadata of the class in question and all it's ancestors whose metadata
270		* is still not loaded.
271		*
272		* Important: The class $name does not necessarily exist at this point here.
273		* Scenarios in a code-generation setup might have access to XML/YAML
274		* Mapping files without the actual PHP code existing here. That is why the
275		* {@see Doctrine\Common\Persistence\Mapping\ReflectionService} interface
276		* should be used for reflection.
277		*
278		* @param string $name The name of the class for which the metadata should get loaded.
279		*
280		* @return string[]
281		*/
282	9	protected function loadMetadata($name)
283		{
284	9	if (! $this->initialized) {
285	9	$this->initialize();
286		}
287
288	9	$loaded = [];
289
290	9	$parentClasses = $this->getParentClasses($name);
291	4	$parentClasses[] = $name;
292
293		// Move down the hierarchy of parent classes, starting from the topmost class
294	4	$parent = null;
295	4	$rootEntityFound = false;
296	4	$visited = [];
297	4	$reflService = $this->getReflectionService();
298	4	foreach ($parentClasses as $className) {
299	4	if (isset($this->loadedMetadata[$className])) {
300		$parent = $this->loadedMetadata[$className];
301		if ($this->isEntity($parent)) {
302		$rootEntityFound = true;
303		array_unshift($visited, $className);
304		}
305		continue;
306		}
307
308	4	$class = $this->newClassMetadataInstance($className);
309	4	$this->initializeReflection($class, $reflService);
310
311	4	$this->doLoadMetadata($class, $parent, $rootEntityFound, $visited);
312
313	4	$this->loadedMetadata[$className] = $class;
314
315	4	$parent = $class;
316
317	4	if ($this->isEntity($class)) {
318	4	$rootEntityFound = true;
319	4	array_unshift($visited, $className);
320		}
321
322	4	$this->wakeupReflection($class, $reflService);
323
324	4	$loaded[] = $className;
325		}
326
327	4	return $loaded;
328		}
329
330		/**
331		* Provides a fallback hook for loading metadata when loading failed due to reflection/mapping exceptions
332		*
333		* Override this method to implement a fallback strategy for failed metadata loading
334		*
335		* @param string $className
336		*
337		* @return ClassMetadata\|null
338		*/
339		protected function onNotFoundMetadata($className)
340		{
341		return null;
342		}
343
344		/**
345		* Actually loads the metadata from the underlying metadata.
346		*
347		* @param ClassMetadata $class
348		* @param ClassMetadata\|null $parent
349		* @param bool $rootEntityFound
350		* @param string[] $nonSuperclassParents All parent class names
351		* that are not marked as mapped superclasses.
352		*
353		* @return void
354		*/
355		abstract protected function doLoadMetadata($class, $parent, $rootEntityFound, array $nonSuperclassParents);
356
357		/**
358		* Creates a new ClassMetadata instance for the given class name.
359		*
360		* @param string $className
361		*
362		* @return ClassMetadata
363		*/
364		abstract protected function newClassMetadataInstance($className);
365
366		/**
367		* {@inheritDoc}
368		*/
369		public function isTransient($class)
370		{
371		if (! $this->initialized) {
372		$this->initialize();
373		}
374
375		// Check for namespace alias
376		if (strpos($class, ':') !== false) {
377		[$namespaceAlias, $simpleClassName] = explode(':', $class, 2);
378		$class = $this->getFqcnFromAlias($namespaceAlias, $simpleClassName);
379		}
380
381		return $this->getDriver()->isTransient($class);
382		}
383
384		/**
385		* Sets the reflectionService.
386		*
387		* @return void
388		*/
389		public function setReflectionService(ReflectionService $reflectionService)
390		{
391		$this->reflectionService = $reflectionService;
392		}
393
394		/**
395		* Gets the reflection service associated with this metadata factory.
396		*
397		* @return ReflectionService
398		*/
399	10	public function getReflectionService()
400		{
401	10	if ($this->reflectionService === null) {
402	10	$this->reflectionService = new RuntimeReflectionService();
403		}
404	10	return $this->reflectionService;
405		}
406
407		/**
408		* Gets the real class name of a class name that could be a proxy.
409		*/
410	8	private function getRealClass(string $class) : string
411		{
412	8	if ($this->proxyNamingInflector === null) {
413	8	$this->proxyNamingInflector = new DefaultProxyNamingInflector();
414		}
415
416	8	return $this->proxyNamingInflector->getRealClassName($class);
417		}
418		}
419

Majkl578 / doctrine-persistence

Push — ProxyNamingInflector ( 293790 )

AbstractClassMetadataFactory::__construct() A

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