@Override public void handleReturnValue(@Nullable Object returnValue, MethodParameter returnType, ModelAndViewContainer mavContainer, NativeWebRequest webRequest) throws Exception { if (returnValue == null) { mavContainer.setRequestHandled(true); return; } DeferredResult<?> result; if (returnValue instanceof DeferredResult) { result = (DeferredResult<?>) returnValue; } else if (returnValue instanceof ListenableFuture) { result = adaptListenableFuture((ListenableFuture<?>) returnValue); } else if (returnValue instanceof CompletionStage) { result = adaptCompletionStage((CompletionStage<?>) returnValue); } else { // Should not happen... throw new IllegalStateException("Unexpected return value type: " + returnValue); } WebAsyncUtils.getAsyncManager(webRequest).startDeferredResultProcessing(result, mavContainer); }
@Override public void handleReturnValue(@Nullable Object returnValue, MethodParameter returnType, ModelAndViewContainer mavContainer, NativeWebRequest webRequest) throws Exception { if (returnValue == null) { mavContainer.setRequestHandled(true); return; } DeferredResult<?> result; if (returnValue instanceof DeferredResult) { result = (DeferredResult<?>) returnValue; } else if (returnValue instanceof ListenableFuture) { result = adaptListenableFuture((ListenableFuture<?>) returnValue); } else if (returnValue instanceof CompletionStage) { result = adaptCompletionStage((CompletionStage<?>) returnValue); } else { // Should not happen... throw new IllegalStateException("Unexpected return value type: " + returnValue); } WebAsyncUtils.getAsyncManager(webRequest).startDeferredResultProcessing(result, mavContainer); }