@Test
public void shouldUseDifferentBucketsWhenUsingValidPartitionKey() throws Exception {
FakeTimeService time = new FakeTimeService(0);
Expression<String> expr =
Expression.valueOf("${matches(exchange.foo, 'bar-00') ?'bucket-00' :''}", String.class);
ThrottlingFilter filter = new ThrottlingFilter(time, 1, duration("3 seconds"), expr);
Handler handler = new ResponseHandler(Status.OK);
// The time does not need to advance
Exchange exchange = new Exchange();
Promise<Response, NeverThrowsException> promise;
exchange.put("foo", "bar-00");
promise = filter.filter(exchange, new Request(), handler);
assertThat(promise.get().getStatus()).isEqualTo(Status.OK);
exchange.put("foo", "bar-00");
promise = filter.filter(exchange, new Request(), handler);
assertThat(promise.get().getStatus()).isEqualTo(Status.TOO_MANY_REQUESTS);
exchange.put("foo", "bar-01");
promise = filter.filter(exchange, new Request(), handler);
assertThat(promise.get().getStatus()).isEqualTo(Status.OK);
}
@Test
public void shouldThrottleRequests() throws Exception {
FakeTimeService time = new FakeTimeService(0);
ThrottlingFilter filter =
new ThrottlingFilter(time, 1, duration("3 seconds"), DEFAULT_PARTITION_EXPR);
// This one has to call the handler as there are enough tokens in the bucket.
Handler handler1 = mock(Handler.class, "handler1");
filter.filter(mock(Context.class), new Request(), handler1);
verify(handler1).handle(any(Context.class), any(Request.class));
time.advance(duration("2 seconds"));
// This one does not have to be called as there is no token anymore in the bucket.
Handler handler2 = mock(Handler.class, "handler2");
Promise<Response, NeverThrowsException> promise2 =
filter.filter(mock(Context.class), new Request(), handler2);
verifyZeroInteractions(handler2);
assertThat(promise2.get().getStatus()).isEqualTo(Status.TOO_MANY_REQUESTS);
time.advance(duration("4 seconds"));
// This one has to call the handler as the bucket has been refilled.
Handler handler3 = mock(Handler.class, "handler3");
filter.filter(mock(Context.class), new Request(), handler3);
verify(handler3).handle(any(Context.class), any(Request.class));
}
@Test
public void shouldUseDefaultValueWithExpressionEvaluatingNull() throws Exception {
FakeTimeService time = new FakeTimeService(0);
Expression<String> expr = Expression.valueOf("${exchange.bar}", String.class);
ThrottlingFilter filter = new ThrottlingFilter(time, 1, duration("3 seconds"), expr);
Handler handler = new ResponseHandler(Status.OK);
// The time does not need to advance
Exchange exchange = new Exchange();
Promise<Response, NeverThrowsException> promise;
promise = filter.filter(exchange, new Request(), handler);
assertThat(promise.get().getStatus()).isEqualTo(Status.INTERNAL_SERVER_ERROR);
}
@Test
public void shouldThrottleConcurrentRequests() throws Exception {
CountDownLatch latch1 = new CountDownLatch(1);
CountDownLatch latch2 = new CountDownLatch(1);
FakeTimeService time = new FakeTimeService(0);
final ThrottlingFilter filter =
new ThrottlingFilter(time, 1, duration("3 seconds"), DEFAULT_PARTITION_EXPR);
// This one has to be called as there are enough tokens in the bucket.
final Handler handler1 = new LatchHandler(latch1, latch2);
Runnable r =
new Runnable() {
@Override
public void run() {
filter.filter(mock(Context.class), new Request(), handler1);
}
};
Thread t1 = new Thread(r);
t1.setName("Filter for request #1");
t1.start();
latch2.await();
time.advance(duration("2 seconds"));
try {
// This one does not have to be called as there no token anymore in the bucket.
Handler handler2 = mock(Handler.class, "handler2");
Promise<Response, NeverThrowsException> promise2 =
filter.filter(mock(Context.class), new Request(), handler2);
verifyZeroInteractions(handler2);
Response response = promise2.get(20, TimeUnit.SECONDS);
assertThat(response.getStatus()).isEqualTo(Status.TOO_MANY_REQUESTS);
assertThat(response.getHeaders().getFirst("Retry-After")).isEqualTo("1");
} finally {
latch1.countDown();
t1.join();
}
}
@Test(dataProvider = "annotatedRequestHandlerData")
public void testQueryCollectionAnnotatedRequestHandler(
Class<?> requestHandler,
boolean collection,
boolean create,
boolean read,
boolean update,
boolean delete,
boolean patch,
boolean resourceAction,
boolean collectionAction,
boolean query)
throws Exception {
// Given
Object provider = requestHandler.newInstance();
Connection connection = Resources.newInternalConnection(createHandler(collection, provider));
QueryRequest req = Requests.newQueryRequest("/test");
// When
Promise<QueryResult, ResourceException> promise =
connection.queryAsync(new RootContext(), req, mock(QueryResourceHandler.class));
// Then
if (query && collection) {
AssertJPromiseAssert.assertThat(promise).succeeded();
QueryResult result = promise.get();
Assertions.assertThat(result.getPagedResultsCookie()).isEqualTo("query");
} else if (collection) {
AssertJPromiseAssert.assertThat(promise)
.failedWithException()
.isInstanceOf(NotSupportedException.class);
} else {
AssertJPromiseAssert.assertThat(promise)
.failedWithException()
.isInstanceOf(BadRequestException.class);
}
}