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<?php declare(strict_types=1); |
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namespace Aguimaraes\Bureaucrat; |
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class Retry implements PolicyInterface |
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{ |
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private $limit; |
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private $delay = 0; |
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private $on = []; |
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private $abortOn = []; |
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private $retries = 0; |
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public function atLeast(int $limit) : Retry |
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{ |
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$this->limit = $limit; |
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return $this; |
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} |
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public function forever() : Retry |
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{ |
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$this->limit = 0; |
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return $this; |
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} |
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public function once() : Retry |
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{ |
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$this->limit = 1; |
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return $this; |
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} |
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public function twice() : Retry |
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{ |
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$this->limit = 2; |
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return $this; |
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} |
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public function withDelay(int $delay, int $unit) : Retry |
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{ |
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$this->delay = $delay * $unit; |
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return $this; |
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} |
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public function onlyOnException(string $exception) : Retry |
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{ |
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$this->on = array_merge($this->on, [$exception]); |
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return $this; |
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} |
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public function abortOnException(string $exception) : Retry |
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{ |
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$this->abortOn = array_merge($this->abortOn, [$exception]); |
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return $this; |
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} |
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public function isInsideRetryLimit() |
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{ |
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if (is_null($this->limit) || ($this->limit > 0 && $this->retries >= $this->limit)) { |
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return false; |
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} |
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return true; |
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} |
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public function isExpectedException(\Exception $e) |
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{ |
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return empty($this->on) || in_array(get_class($e), $this->on); |
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} |
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public function isAbortableException(\Exception $e) |
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{ |
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return !empty($this->abortOn) && in_array(get_class($e), $this->abortOn); |
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} |
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public function canRetry(\Exception $e) |
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{ |
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return $this->isExpectedException($e) |
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&& $this->isInsideRetryLimit() |
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&& !$this->isAbortableException($e); |
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} |
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public function run(callable $operation, $args = []) |
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{ |
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try { |
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return $operation(...$args); |
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} catch (\Exception $e) { |
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if ($this->canRetry($e)) { |
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if ($this->delay > 0) { |
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usleep($this->delay); |
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} |
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$this->retries++; |
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return $this->run($operation, $args); |
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} |
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throw new $e; |
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} |
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} |
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} |
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aguimaraes /
bureaucrat
