@Test
public void testRetryFileSize() throws IOException {
GcsOptions pipelineOptions = gcsOptionsWithTestCredential();
GcsUtil gcsUtil = pipelineOptions.getGcsUtil();
Storage mockStorage = Mockito.mock(Storage.class);
gcsUtil.setStorageClient(mockStorage);
Storage.Objects mockStorageObjects = Mockito.mock(Storage.Objects.class);
Storage.Objects.Get mockStorageGet = Mockito.mock(Storage.Objects.Get.class);
BackOff mockBackOff = new AttemptBoundedExponentialBackOff(3, 200);
when(mockStorage.objects()).thenReturn(mockStorageObjects);
when(mockStorageObjects.get("testbucket", "testobject")).thenReturn(mockStorageGet);
when(mockStorageGet.execute())
.thenThrow(new SocketTimeoutException("SocketException"))
.thenThrow(new SocketTimeoutException("SocketException"))
.thenReturn(new StorageObject().setSize(BigInteger.valueOf(1000)));
assertEquals(
1000,
gcsUtil.fileSize(
GcsPath.fromComponents("testbucket", "testobject"),
mockBackOff,
new FastNanoClockAndSleeper()));
assertEquals(mockBackOff.nextBackOffMillis(), BackOff.STOP);
}
/**
* Sleep and/or determine if the backoff has timed out.
*
* @param backoff
* @return RetryState indicating the current state of the retry logic.
* @throws IOException in some cases from {@link BackOff#nextBackOffMillis()}
*/
protected RetryState getRetryState(BackOff backoff) throws IOException {
long nextBackOffMillis = backoff.nextBackOffMillis();
if (nextBackOffMillis == BackOff.STOP) {
logger.warn(
"Exhausted the number of retries for credentials refresh after "
+ this.retryOptions.getMaxElaspedBackoffMillis()
+ " milliseconds.");
return RetryState.RetriesExhausted;
}
try {
sleeper.sleep(nextBackOffMillis);
// Try to perform another call.
return RetryState.PerformRetry;
} catch (InterruptedException e) {
logger.warn("Interrupted while trying to refresh credentials.");
Thread.interrupted();
// If the thread is interrupted, terminate immediately.
return RetryState.Interrupted;
}
}