How to use

getLastFailedAttempt

method

in

com.github.rholder.retry.RetryException

String errorMessage = String.format("Operation '%s:%s' failed after retrying %d times, retry limit %d", operationName,
    shortDescription, internalNumberOfRetries.get(), 3);
logger.debug(errorMessage, retryException.getLastFailedAttempt().getExceptionCause());
throw new RuntimeException(errorMessage, retryException.getLastFailedAttempt().getExceptionCause());

private byte[] retrieveBytes(String url) {
  MutableInt retry = new MutableInt(0);
  try {
    return retryer.call(() -> request(url, retry));
  } catch (ExecutionException e) {
    throw Throwables.propagate(e.getCause());
  } catch (RetryException e) {
    if (e.getLastFailedAttempt().hasException()) {
      throw new RuntimeException("Max retries exceeded", e.getLastFailedAttempt().getExceptionCause());
    } else {
      throw new RuntimeException("Max retries exceeded", e);
    }
  }
}

private void handleException(final String request,
               final String type,
               final List<String> ids,
               final Exception exception,
               final String metricName) {
  log.error("Failed {} metadata of type {} with ids {}. {}", request, type, ids, exception);
  String exceptionName = exception.getClass().getSimpleName();
  if (exception instanceof RetryException) {
    final Throwable error = ((RetryException) exception).getLastFailedAttempt().getExceptionCause();
    if (error != null) {
      exceptionName = error.getClass().getSimpleName();
    }
  }
  final Map<String, String> tags = ImmutableMap
    .<String, String>builder().put("status", "failure").put("exception", exceptionName).build();
  registry.counter(registry.createId(metricName).withTags(tags)).increment();
  log(request, type, ids.toString(), null, exception.getMessage(), exception, true);
}

private void handleException(final String request,
               final String type,
               final String id,
               final Exception exception,
               final String metricName) {
  log.error("Failed {} metadata of type {} with id {}. {}", request, type, id, exception);
  String exceptionName = exception.getClass().getSimpleName();
  if (exception instanceof RetryException) {
    final Throwable error = ((RetryException) exception).getLastFailedAttempt().getExceptionCause();
    if (error != null) {
      exceptionName = error.getClass().getSimpleName();
    }
  }
  final Map<String, String> tags = ImmutableMap
    .<String, String>builder().put("status", "failure").put("name", id).put("exception", exceptionName).build();
  registry.counter(registry.createId(metricName).withTags(tags)).increment();
  log(request, type, id, null, exception.getMessage(), exception, true);
}

String errorMessage = String.format("Operation '%s:%s' failed after retrying %d times, retry limit %d", operationName,
    shortDescription, internalNumberOfRetries.get(), 3);
logger.debug(errorMessage, retryException.getLastFailedAttempt().getExceptionCause());
throw new RuntimeException(errorMessage, retryException.getLastFailedAttempt().getExceptionCause());

} catch (RetryException e) {
  LOGGER.error("Retry error getting leaders for partitions of " + topic, e);
  LOGGER.error("ATTEMPT EXCEPTION: ", e.getLastFailedAttempt().getExceptionCause());
  throw new BrokerQueryException("Error finding broker:", e.getLastFailedAttempt().getExceptionCause());

@Test
public void testRetryIfResult() throws Exception {
  Callable<Boolean> callable = notNullAfter5Attempts();
  Retryer retryer = RetryerBuilder.newBuilder()
      .retryIfResult(Objects::isNull)
      .build();
  assertTrue(retryer.call(callable));
  callable = notNullAfter5Attempts();
  retryer = RetryerBuilder.newBuilder()
      .retryIfResult(Objects::isNull)
      .withStopStrategy(StopStrategies.stopAfterAttempt(3))
      .build();
  try {
    retryer.call(callable);
    fail("Exception expected");
  } catch (RetryException e) {
    assertEquals(3, e.getNumberOfFailedAttempts());
    assertTrue(e.getLastFailedAttempt().hasResult());
    assertNull(e.getLastFailedAttempt().getResult());
    assertNull(e.getCause());
  }
}