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<?php |
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namespace AmaTeam\Image\Projection\Filesystem; |
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use AmaTeam\Image\Projection\Filesystem\Pattern\Chunk; |
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class Pattern |
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{ |
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/** |
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* @var string |
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*/ |
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private $source; |
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/** |
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* @var Chunk[] |
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*/ |
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private $chunks; |
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/** |
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* @var int |
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*/ |
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private $length; |
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/** |
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* @param string $pattern |
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*/ |
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public function __construct($pattern) |
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{ |
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$this->source = $pattern; |
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$segments = self::split($pattern); |
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$this->chunks = array_map([__CLASS__, 'createChunk'], $segments); |
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$this->length = sizeof($segments); |
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} |
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/** |
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* @param string $path |
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* @return bool |
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*/ |
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public function matches($path) |
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{ |
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$segments = self::split($path); |
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if (sizeof($segments) !== sizeof($this->chunks)) { |
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return false; |
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} |
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for ($i = 0; $i < $this->length; $i++) { |
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if (!$this->chunks[$i]->matches($segments[$i])) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* @param $path |
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* @return string[] |
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*/ |
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public function getParameters($path) |
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{ |
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$segments = self::split($path); |
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if (sizeof($segments) !== $this->length) { |
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return []; |
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} |
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$parameters = []; |
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for ($i = 0; $i < $this->length; $i++) { |
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$parameters = array_merge( |
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$parameters, |
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$this->chunks[$i]->getParameters($segments[$i]) |
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); |
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} |
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return $parameters; |
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} |
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public function getFixedPart() |
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{ |
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$candidates = $this->chunks; |
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$accumulator = []; |
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while (sizeof($candidates) > 0) { |
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/** @var Chunk $chunk */ |
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$chunk = array_shift($candidates); |
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if ($chunk->getType() !== Chunk::TYPE_EXACT_MATCH) { |
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break; |
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} |
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$accumulator[] = $chunk->getExpression(); |
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} |
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return implode('/', $accumulator); |
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} |
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public function isFixed() |
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{ |
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foreach ($this->chunks as $chunk) { |
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if ($chunk->getType() === Chunk::TYPE_EXPRESSION) { |
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return false; |
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} |
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} |
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return true; |
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} |
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public function resolve(array $parameters) |
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{ |
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$resolved = array_map(function (Chunk $chunk) use ($parameters) { |
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return (string) $chunk->resolve($parameters); |
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}, $this->chunks); |
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return new Pattern(implode('/', $resolved)); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function __toString() |
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{ |
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return $this->source; |
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} |
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/** |
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* @return string |
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*/ |
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public function getSource() |
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{ |
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return $this->source; |
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} |
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private static function split($path) |
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{ |
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return array_filter(explode('/', trim($path, '/')), function ($item) { |
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return $item !== ''; |
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}); |
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} |
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/** |
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* @SuppressWarnings(PHPMD.UnusedPrivateMethod) |
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*/ |
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private static function createChunk($segment) |
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{ |
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return new Chunk($segment); |
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} |
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} |
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ama-team /
php-projection-framework
