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<?php |
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namespace Storeman\Hash; |
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final class HashContainer implements \Countable, \IteratorAggregate, \Serializable |
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{ |
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/** |
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* @var array |
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*/ |
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protected $map = []; |
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public function addHash(string $algorithm, string $hash): HashContainer |
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{ |
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if (array_key_exists($algorithm, $this->map) && $this->map[$algorithm] !== $hash) |
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{ |
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throw new \LogicException("Trying to update existing hash with different hash for the algorithm '{$algorithm}'"); |
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} |
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$this->map[$algorithm] = $hash; |
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return $this; |
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} |
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public function hasHash(string $algorithm): bool |
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{ |
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return array_key_exists($algorithm, $this->map); |
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} |
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public function getHash(string $algorithm): ?string |
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{ |
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return array_key_exists($algorithm, $this->map) ? $this->map[$algorithm] : null; |
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} |
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/** |
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* Compares the given instance to this instance. |
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* They are called equal if the intersection of known hash values is equal. |
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* |
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* @param HashContainer $other |
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* @return bool |
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*/ |
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public function equals(?HashContainer $other): bool |
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{ |
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if ($other === null) |
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{ |
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return false; |
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} |
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return array_intersect_key($this->map, $other->map) == array_intersect_key($other->map, $this->map); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function count(): int |
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{ |
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return count($this->map); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getIterator(): \Iterator |
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{ |
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return new \ArrayIterator($this->map); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function serialize(): string |
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{ |
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return serialize($this->map); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function unserialize($serialized): HashContainer |
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{ |
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$this->map = unserialize($serialized); |
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return $this; |
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} |
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public function __toString(): string |
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{ |
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return implode(', ', array_map(function(string $algorithm, string $hash) { |
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return "{$algorithm}: {$hash}"; |
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}, array_keys($this->map), $this->map)) ?: '-'; |
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} |
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} |
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storeman-io /
storeman
