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<?php |
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/** |
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* This file is part of the Cubiche package. |
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* |
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* Copyright (c) Cubiche |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Cubiche\Core\Hashable; |
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/** |
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* Default Hash Coder class. |
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* |
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* @author Karel Osorio Ramírez <[email protected]> |
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*/ |
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class HashCoder implements HashCoderInterface |
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{ |
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/** |
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* @var HashCoderInterface |
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*/ |
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private static $default = null; |
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/** |
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* @return \Cubiche\Core\Hashable\HashCoderInterface |
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*/ |
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public static function defaultHashCoder() |
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{ |
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if (self::$default === null) { |
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self::$default = new self(); |
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} |
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return self::$default; |
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} |
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/** |
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* @param HashCoderInterface $hashCoder |
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* @param HashCoderInterface $default |
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* |
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* @return \Cubiche\Core\Hashable\HashCoderInterface |
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*/ |
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public static function ensure(HashCoderInterface $hashCoder = null, HashCoderInterface $default = null) |
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{ |
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return $hashCoder !== null || $default !== null ? |
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($hashCoder !== null ? $hashCoder : $default) : self::defaultHashCoder(); |
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} |
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/** |
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* @param mixed $value |
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* |
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* @return string |
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*/ |
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public static function defaultHashCode($value) |
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{ |
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if (\is_object($value)) { |
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return \spl_object_hash($value); |
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} elseif (\is_scalar($value) || \is_resource($value)) { |
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return (string) $value; |
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} elseif (\is_array($value)) { |
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return \md5(\serialize($value)); |
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} |
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return '0'; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function hashCode($value) |
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{ |
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if ($value instanceof HashableInterface) { |
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return $value->hashCode(); |
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} |
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return self::defaultHashCode($value); |
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} |
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} |
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cubiche /
hashable
