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1 <?php
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2
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3 /*
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4 * This file is part of the Symfony package.
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5 *
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6 * (c) Fabien Potencier <fabien@symfony.com>
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7 *
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8 * For the full copyright and license information, please view the LICENSE
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9 * file that was distributed with this source code.
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10 */
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11
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12 namespace Symfony\Component\Validator\Mapping\Loader;
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13
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14 use Symfony\Component\Validator\Exception\MappingException;
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15 use Symfony\Component\Validator\Mapping\ClassMetadata;
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16
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17 /**
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18 * Loads validation metadata by calling a static method on the loaded class.
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19 *
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20 * @author Bernhard Schussek <bschussek@gmail.com>
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21 */
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22 class StaticMethodLoader implements LoaderInterface
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23 {
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24 protected $methodName;
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25
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26 /**
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27 * Creates a new loader.
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28 *
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29 * @param string $methodName The name of the static method to call
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30 */
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31 public function __construct($methodName = 'loadValidatorMetadata')
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32 {
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33 $this->methodName = $methodName;
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34 }
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35
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36 /**
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37 * {@inheritdoc}
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38 */
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39 public function loadClassMetadata(ClassMetadata $metadata)
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40 {
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41 /** @var \ReflectionClass $reflClass */
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42 $reflClass = $metadata->getReflectionClass();
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43
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44 if (!$reflClass->isInterface() && $reflClass->hasMethod($this->methodName)) {
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45 $reflMethod = $reflClass->getMethod($this->methodName);
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46
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47 if ($reflMethod->isAbstract()) {
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48 return false;
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49 }
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50
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51 if (!$reflMethod->isStatic()) {
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52 throw new MappingException(sprintf('The method %s::%s should be static', $reflClass->name, $this->methodName));
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53 }
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54
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55 if ($reflMethod->getDeclaringClass()->name != $reflClass->name) {
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56 return false;
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57 }
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58
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59 $reflMethod->invoke(null, $metadata);
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60
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61 return true;
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62 }
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63
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64 return false;
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65 }
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66 }
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