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<?php |
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/** |
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* Cache.php |
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* |
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* Cache for callable class metadata. |
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* |
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* @package jaxon-core |
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* @author Thierry Feuzeu <[email protected]> |
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* @copyright 2024 Thierry Feuzeu <[email protected]> |
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* @license https://opensource.org/licenses/BSD-3-Clause BSD 3-Clause License |
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* @link https://github.com/jaxon-php/jaxon-core |
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*/ |
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namespace Jaxon\App\Metadata; |
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use function count; |
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use function file_put_contents; |
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use function implode; |
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use function is_callable; |
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use function str_replace; |
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use function strtolower; |
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class MetadataCache |
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{ |
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/** |
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* @param string $sCacheDir |
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*/ |
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public function __construct(private string $sCacheDir) |
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{} |
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/** |
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* @param string $sClass |
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* |
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* @return string |
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*/ |
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private function filepath(string $sClass): string |
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{ |
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$sFilename = str_replace(['\\', '.'], '_', strtolower($sClass)); |
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return "{$this->sCacheDir}/jaxon_metadata_{$sFilename}.php"; |
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} |
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/** |
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* Generate the PHP code to create a metadata object. |
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* |
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* @return array |
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*/ |
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private function encode(Metadata $xMetadata): array |
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{ |
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$sVar = '$'; // The dollar char. |
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$aCalls = ["{$sVar}xMetadata = new " . Metadata::class . '();']; |
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foreach($xMetadata->getAttributes() as $sType => $aValues) |
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{ |
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if(count($aValues) === 0) |
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{ |
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continue; |
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} |
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foreach($aValues as $sMethod => $xData) |
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{ |
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$aCalls[] = "{$sVar}xData = {$sVar}xMetadata->{$sType}('$sMethod');"; |
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foreach($xData->encode("{$sVar}xData") as $sCall) |
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{ |
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$aCalls[] = $sCall; |
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} |
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} |
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} |
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$aCalls[] = "return {$sVar}xMetadata;"; |
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return $aCalls; |
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} |
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/** |
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* @param string $sClass |
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* @param Metadata $xMetadata |
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* |
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* @return void |
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*/ |
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public function save(string $sClass, Metadata $xMetadata): void |
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{ |
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$sDataCode = implode("\n ", $this->encode($xMetadata)); |
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$sPhpCode = <<<CODE |
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<?php |
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return function() { |
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$sDataCode |
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}; |
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CODE; |
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file_put_contents($this->filepath($sClass), $sPhpCode); |
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} |
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/** |
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* @param string $sClass |
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* |
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* @return Metadata|null |
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*/ |
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public function read(string $sClass): ?Metadata |
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{ |
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$fCreator = require $this->filepath($sClass); |
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return !is_callable($fCreator) ? null : $fCreator(); |
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} |
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} |
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jaxon-php /
jaxon-mono
