-
-
Save makotan/3000852 to your computer and use it in GitHub Desktop.
リトライハンドラー
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
case class RetryException(throwables: List[Throwable]) extends Exception(throwables.toString()) | |
object RetryUtil { | |
import scala.util.control.Exception.allCatch | |
def retry[T](retryLimit: Int)(f: => T): T = | |
retry(retryLimit, 0, classOf[Throwable])(f) | |
def retry[T](retryLimit: Int, retryInterval: Int)(f: => T): T = | |
retry(retryLimit, retryInterval, classOf[Throwable])(f) | |
def retry[T](retryLimit: Int, catchExceptionClasses: Class[_]*)(f: => T): T = | |
retry(retryLimit, 0, e => catchExceptionClasses.contains(e.getClass))(f) | |
def retry[T](retryLimit: Int, shouldCatch: Throwable => Boolean)(f: => T): T = | |
retry(retryLimit, 0, shouldCatch)(f) | |
def retry[T](retryLimit: Int, retryInterval: Int, catchExceptionClasses: Class[_]*)(f: => T): T = | |
retry(retryLimit, retryInterval, e => catchExceptionClasses.contains(e.getClass))(f) | |
def retry[T](retryLimit: Int, retryInterval: Int, shouldCatch: Throwable => Boolean)(f: => T): T = { | |
@annotation.tailrec | |
def retry0(errors: List[Throwable], f: => T): T = { | |
if (errors.size == retryLimit) throw RetryException(errors) | |
allCatch.either(f) match { | |
case Right(r) => r | |
case Left(e) => | |
if (shouldCatch(e)) { | |
Thread.sleep(retryInterval) | |
retry0(e :: errors, f) | |
} else throw e | |
} | |
} | |
retry0(Nil, f) | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment