@Test
@SuppressWarnings("unchecked")
public void testDoWithRetry_NoRetry() throws Exception {
AmazonElasticMapReduceCustomClient client =
new AmazonElasticMapReduceCustomClient("dummy", "dummy");
client.setRequestInterval(100);
Callable callable = mock(Callable.class);
AmazonClientException exception = new AuthorizationErrorException("auth error");
when(callable.call()).thenThrow(exception).thenReturn(new Object());
try {
client.doThrottleSafe(callable);
fail("should throw exception");
} catch (Exception e) {
assertSame(exception, e);
}
}
@Test
@SuppressWarnings("unchecked")
public void testDoWithRetry_ThrottleException() throws Exception {
AmazonElasticMapReduceCustomClient client =
new AmazonElasticMapReduceCustomClient("dummy", "dummy");
client.setRequestInterval(100);
Callable callable = mock(Callable.class);
AmazonServiceException exception = new AmazonServiceException("Rate exceeded");
exception.setErrorCode("Throttling");
exception.setStatusCode(400);
when(callable.call()).thenThrow(exception, exception, exception).thenReturn(new Object());
long startTime = System.currentTimeMillis();
Object result = client.doThrottleSafe(callable);
assertNotNull(result);
assertThat(
(System.currentTimeMillis() - startTime),
greaterThanOrEqualTo(3 * client.getRequestInterval()));
}
@Test
@SuppressWarnings("unchecked")
public void testDoWithRetry_ReadTimeOut() throws Exception {
AmazonElasticMapReduceCustomClient client =
new AmazonElasticMapReduceCustomClient("dummy", "dummy");
client.setRequestInterval(100);
Callable callable = mock(Callable.class);
AmazonClientException exception =
new AmazonClientException("Unable to execute HTTP request: Read timed out");
when(callable.call()).thenThrow(exception, exception, exception).thenReturn(new Object());
long startTime = System.currentTimeMillis();
Object result = client.doThrottleSafe(callable);
assertNotNull(result);
assertThat(
(System.currentTimeMillis() - startTime),
greaterThanOrEqualTo(3 * client.getRequestInterval()));
// now exceed retries
client.setMaxRetriesOnConnectionErrors(2);
when(callable.call()).thenThrow(exception, exception, exception).thenReturn(new Object());
try {
client.doThrottleSafe(callable);
fail("should throw exception");
} catch (Exception e) {
assertSame(exception, e);
}
}