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<?php |
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namespace Semaphoro\Handlers; |
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use Semaphoro\Exception\SemaphoroException; |
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use Semaphoro\Storages\StorageInterface; |
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class RangeHandler implements HandlerInterface |
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{ |
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/** |
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* Last number executed |
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*/ |
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const LAST_EXECUTED_NUMBER_KEY = 'last_executed_number'; |
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/** |
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* Range's status |
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* |
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* 0 = Unprocessed |
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* 1 = Processing |
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*/ |
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const STATUS_UNPROCESSED = "0"; |
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const STATUS_PROCESSING = "1"; |
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/** |
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* @var StorageInterface |
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*/ |
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private $storage; |
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/** |
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* @var int |
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*/ |
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private $rangeLength; |
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public function __construct(StorageInterface $storage, int $rangeLength = 50) |
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{ |
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$this->storage = $storage; |
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$this->rangeLength = $rangeLength; |
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} |
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/** |
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* @return boolean|string |
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*/ |
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public function getProcessOpened(): ?string |
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{ |
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$rangeKeys = $this->storage->getKeys('[0-9]*'); |
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foreach ($rangeKeys as $rangeKey) { |
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try { |
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$rangeKeyStatus = $this->storage->getValue($rangeKey); |
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1 |
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} catch (\Throwable $e) { |
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continue; |
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} |
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if ($rangeKeyStatus === self::STATUS_UNPROCESSED) { |
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$this->setStatusInProcess($rangeKey); |
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return $rangeKey; |
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} |
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} |
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return false; |
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} |
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/** |
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* @param string $rangeKey |
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*/ |
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1 |
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private function setStatusInProcess(string $rangeKey): void |
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{ |
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$this->storage->save($rangeKey, self::STATUS_PROCESSING); |
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1 |
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} |
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/** |
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* @return string |
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* @throws SemaphoroException |
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*/ |
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public function createProcessKey(): string |
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{ |
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$lastExecutedNumber = $this->getLastExecutedNumber(); |
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1 |
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$this->setLastExecutedNumber($this->calculateLastRangeNumber($lastExecutedNumber)); |
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1 |
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return $this->createRangeKey($lastExecutedNumber); |
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} |
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/** |
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* @return string |
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* @throws SemaphoroException when doesn't have a last executed number |
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*/ |
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private function getLastExecutedNumber(): string |
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{ |
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try { |
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return $this->storage->getValue(self::LAST_EXECUTED_NUMBER_KEY); |
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1 |
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} catch (\Throwable $e) { |
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throw new SemaphoroException('Last executed number is required'); |
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} |
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} |
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/** |
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* @param int $number |
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*/ |
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1 |
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private function setLastExecutedNumber(int $number): void |
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{ |
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1 |
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$this->storage->save(self::LAST_EXECUTED_NUMBER_KEY, $number); |
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1 |
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} |
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/** |
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* @param int $number |
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* @return int |
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*/ |
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1 |
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private function calculateFirstRangeNumber(int $number): int |
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{ |
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1 |
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return ++$number; |
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} |
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/** |
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* @param int $number |
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* @return int |
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*/ |
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1 |
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private function calculateLastRangeNumber(int $number): int |
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{ |
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1 |
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return $number + $this->rangeLength; |
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} |
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/** |
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* @param string $lastExecutedNumber |
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* @return string |
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*/ |
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1 |
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private function createRangeKey(string $lastExecutedNumber): string |
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{ |
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return sprintf( |
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'%s_%s', |
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$this->calculateFirstRangeNumber($lastExecutedNumber), |
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1 |
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$this->calculateLastRangeNumber($lastExecutedNumber) |
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); |
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} |
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/** |
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* @param string $rangeKey |
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*/ |
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1 |
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public function setUnprocessedStatus(string $rangeKey): void |
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{ |
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1 |
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$this->storage->save($rangeKey, self::STATUS_UNPROCESSED); |
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1 |
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} |
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/** |
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* @param string $rangeKey |
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147
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*/ |
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1 |
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public function remove(string $rangeKey): void |
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{ |
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1 |
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$this->storage->remove($rangeKey); |
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} |
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} |
robsonalvesbh /
semaphoro
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