Validator::checkStructure()   C
last analyzed

Complexity

Conditions 13
Paths 39

Size

Total Lines 46
Code Lines 28

Duplication

Lines 12
Ratio 26.09 %

Importance

Changes 0
Metric Value
dl 12
loc 46
rs 5.1118
c 0
b 0
f 0
cc 13
eloc 28
nc 39
nop 3

How to fix   Complexity   

Long Method

Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.

For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.

Commonly applied refactorings include:

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<?php
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namespace HelePartnerSyncApi;
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use DateTime;
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use DateTimeInterface;
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class Validator
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{
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	const TYPE_NULL = 'null';
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	const TYPE_ARRAY = 'array';
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	const TYPE_INT = 'int';
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	const TYPE_STRING = 'string';
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	const TYPE_DATE_TIME = 'datetime';
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	const TYPE_DATE_TIME_STRING = 'datetimestring';
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	/**
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	 * @param mixed $value
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	 * @param string $type self::TYPE_*
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	 */
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	public static function checkType($value, $type)
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	{
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		switch ($type) {
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			case self::TYPE_NULL:
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				self::checkNull($value);
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				break;
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			case self::TYPE_ARRAY:
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				self::checkArray($value);
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				break;
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			case self::TYPE_INT:
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				self::checkInt($value);
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				break;
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			case self::TYPE_STRING:
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				self::checkString($value);
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				break;
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			case self::TYPE_DATE_TIME:
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				self::checkDateTime($value);
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				break;
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			case self::TYPE_DATE_TIME_STRING:
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				self::checkDateTimeString($value);
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				break;
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			default:
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				throw new ValidatorException(sprintf('Unknown type %s to validate', is_scalar($type) ? $type : self::getType($type)));
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		}
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	}
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	public static function checkStructure($data, array $structure, array $path = array())
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	{
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		if (count($structure) === 0) {
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			throw new ValidatorException(sprintf('Cannot validate against empty structure in %s', self::getStructurePath($path)));
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		}
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		self::checkArray($data);
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		self::checkArray($structure);
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		$listCheck = self::isList($structure);
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		if (!$listCheck) {
65 View Code Duplication
			if (count($data) > 0 && self::isList($data)) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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				throw new ValidatorException(sprintf('Unexpected list structure (%s elements found) in %s', count($data), self::getStructurePath($path)));
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			}
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			$diff = array_diff_key($data, $structure);
70 View Code Duplication
			if (count($diff) > 0) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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				throw new ValidatorException(sprintf('Unknown keys (%s) in %s', implode(', ', array_keys($diff)), self::getStructurePath($path)));
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			}
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			$diff = array_diff_key($structure, $data);
75 View Code Duplication
			if (count($diff) > 0) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
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				throw new ValidatorException(sprintf('Missing keys (%s) in %s', implode(', ', array_keys($diff)), self::getStructurePath($path)));
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			}
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79 View Code Duplication
		} elseif (count($data) > 0 && !self::isList($data)) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
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			throw new ValidatorException(sprintf('Expected list structure in %s', self::getStructurePath($path)));
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		}
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		foreach ($data as $key => $value) {
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			try {
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				$newStructure = $listCheck ? $structure[0] : $structure[$key];
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				if (is_array($newStructure)) {
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					$newPath = array_merge($path, array($key));
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					self::checkArray($value);
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					self::checkStructure($value, $newStructure, $newPath);
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				} else {
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					self::checkType($value, $newStructure);
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				}
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			} catch (ValidatorException $e) {
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				throw new ValidatorException(sprintf('Invalid type in %s: %s', self::getStructurePath($path, $key), $e->getMessage()), $e);
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			}
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		}
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	}
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	/**
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	 * @param mixed $value
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	 */
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	public static function checkNull($value)
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	{
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		if (!is_null($value)) {
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			self::throwException('Null', $value);
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		}
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	}
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	/**
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	 * @param mixed $value
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	 */
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	public static function checkArray($value)
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	{
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		if (!is_array($value)) {
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			self::throwException('Array', $value);
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		}
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	}
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	/**
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	 * @param mixed $value
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	 */
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	public static function checkDateTime($value)
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	{
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		if (!$value instanceof DateTime && !$value instanceof DateTimeInterface) {
1 ignored issue
show
Bug introduced by
The class DateTimeInterface does not exist. Is this class maybe located in a folder that is not analyzed, or in a newer version of your dependencies than listed in your composer.lock/composer.json?
Loading history...
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			self::throwException('DateTime', $value);
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		}
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	}
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	/**
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	 * @param mixed $value
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	 */
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	public static function checkDateTimeString($value)
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	{
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		self::checkString($value);
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		$dateTime = DateTime::createFromFormat(DateTime::W3C, $value);
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		if ($dateTime === false) {
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			self::throwException('W3C datetime', $value);
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		}
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	}
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	/**
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	 * @param mixed $value
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	 */
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	public static function checkInt($value)
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	{
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		if (!is_int($value)) {
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			self::throwException('Int', $value);
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		}
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	}
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	/**
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	 * @param mixed $value
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	 */
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	public static function checkString($value)
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	{
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		if (!is_string($value)) {
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			self::throwException('String', $value);
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		}
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	}
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	/**
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	 * @param string $type
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	 * @param mixed $value
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	 * @internal
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	 */
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	private static function throwException($type, $value)
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	{
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		if (is_scalar($value)) {
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			throw new ValidatorException(sprintf('%s expected, %s (%s) given.', $type, self::getType($value), $value));
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		} else {
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			throw new ValidatorException(sprintf('%s expected, %s given.', $type, self::getType($value)));
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		}
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	}
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	/**
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	 * @param mixed $value
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	 * @return string
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	 */
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	private static function getType($value)
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	{
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		return is_object($value) ? get_class($value) : gettype($value);
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	}
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	/**
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	 * @param mixed $value
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	 * @return bool
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	 */
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	private static function isList($value)
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	{
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		return is_array($value) && (count($value) === 0 || array_keys($value) === range(0, count($value) - 1));
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	}
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	/**
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	 * @param array $path
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	 * @param string|null $currentKey
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	 * @return string
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	 */
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	private static function getStructurePath(array $path, $currentKey = null)
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	{
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		if ($currentKey !== null) {
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			$path[] = $currentKey;
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		}
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		if (count($path) === 0) {
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			return 'root';
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		} elseif (count($path) === 1) {
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			return sprintf('key \'%s\'', $path[0]);
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		} else {
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			return sprintf('path \'%s\'', implode('.', $path));
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		}
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	}
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}
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