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<?php
namespace Guzzle\Plugin\Backoff;
use Guzzle\Common\Exception\InvalidArgumentException;
use Guzzle\Http\Message\RequestInterface;
use Guzzle\Http\Message\Response;
use Guzzle\Http\Exception\HttpException;
/**
* Strategy that will invoke a closure to determine whether or not to retry with a delay
*/
class CallbackBackoffStrategy extends AbstractBackoffStrategy
{
/** @var \Closure|array|mixed Callable method to invoke */
protected $callback;
/** @var bool Whether or not this strategy makes a retry decision */
protected $decision;
/**
* @param \Closure|array|mixed $callback Callable method to invoke
* @param bool $decision Set to true if this strategy makes a backoff decision
* @param BackoffStrategyInterface $next The optional next strategy
*
* @throws InvalidArgumentException
*/
public function __construct($callback, $decision, BackoffStrategyInterface $next = null)
{
if (!is_callable($callback)) {
throw new InvalidArgumentException('The callback must be callable');
}
$this->callback = $callback;
$this->decision = (bool) $decision;
$this->next = $next;
}
public function makesDecision()
{
return $this->decision;
}
protected function getDelay($retries, RequestInterface $request, Response $response = null, HttpException $e = null)
{
return call_user_func($this->callback, $retries, $request, $response, $e);
}
}
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