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<?php |
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/** |
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* @author KonstantinKuklin <[email protected]> |
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*/ |
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namespace KonstantinKuklin\DoctrineCompressedFields; |
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use Doctrine\ORM\Mapping\ClassMetadata; |
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class Engine |
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{ |
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/** |
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* @param int $hub |
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* @param \KonstantinKuklin\DoctrineCompressedFields\Annotation\Mask[] $compressedList |
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* @param int[] $valueList |
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* |
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* @return int |
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* @throws \Exception |
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*/ |
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public function getPackedValue($hub, $compressedList, $valueList) |
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{ |
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if (!$hub) { |
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$hub = 0; |
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} |
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$hubBin = decbin($hub); |
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foreach ($compressedList as $valueKey => $compressed) { |
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$compressedAnnotation = $compressed[MetadataLayer::ANNOTATION]; |
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$bits = $compressedAnnotation->bits; |
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$value = $valueList[$valueKey] ?: 0; |
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if (!$value) { |
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continue; |
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} |
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$valueBin = decbin($value); |
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if (strlen($valueBin) > count($bits)) { |
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throw new \Exception('bits are to few'); |
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} |
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foreach ($bits as $valuePosition => $hubPosition) { |
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$hubBin[$hubPosition] = isset($valueBin[$valuePosition]) ? $valueBin[$valuePosition] : '0'; |
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} |
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} |
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$hubBin = str_replace(' ', '0', $hubBin); |
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$hubBinCorrectOrder = strrev($hubBin); |
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return bindec($hubBinCorrectOrder); |
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} |
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/** |
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* @param string $hub |
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* @param array $compressedList |
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* |
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* @return array |
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*/ |
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public function getUnpackedValueList($hub, $compressedList) |
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{ |
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if (!$hub) { |
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return []; |
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} |
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$hubBin = strrev(decbin($hub)); |
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$valueList = []; |
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foreach ($compressedList as $valueKey => $compressed) { |
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$compressedAnnotation = $compressed[MetadataLayer::ANNOTATION]; |
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$bits = $compressedAnnotation->bits; |
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$valueBin = '0'; |
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foreach ($bits as $valuePosition => $hubPosition) { |
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$valueBin[$valuePosition] = !empty($hubBin[$hubPosition]) ? $hubBin[$hubPosition] : '0'; |
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} |
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$valueBin = str_replace(' ', '0', $valueBin); |
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$valueList[$valueKey] = bindec(strrev($valueBin)); |
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} |
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return $valueList; |
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} |
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/** |
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* @param \Doctrine\ORM\Mapping\ClassMetadata $entityClassMetadata |
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* @param string $hub |
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* |
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* @return \int[] |
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* @throws \Exception |
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*/ |
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public function getFreeBits(ClassMetadata $entityClassMetadata, $hub) |
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{ |
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$HubAnnotation = MetadataLayer::getHubAnnotation($entityClassMetadata, $hub); |
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$bitsCount = $HubAnnotation->size; |
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$maskList = MetadataLayer::getMaskList($entityClassMetadata, $hub); |
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$bitsUsed = []; |
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foreach ($maskList as $maskGrouped) { |
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$MaskAnnotation = $maskGrouped[MetadataLayer::ANNOTATION]; |
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$bitsUsed = array_merge($bitsUsed, $MaskAnnotation->bits); |
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} |
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$bitsUsed = array_flip($bitsUsed); |
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$bitsFree = []; |
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for ($i = 0; $i < $bitsCount; $i++) { |
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if (isset($bitsUsed[$i])) { |
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continue; |
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} |
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$bitsFree[] = $i; |
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} |
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return $bitsFree; |
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} |
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} |
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KonstantinKuklin /
doctrine-compressed-fields
