@Override
    protected HttpObject filter(HttpObject obj) {
        if (obj instanceof HttpData) {
            return requestDecoder.decode((HttpData) obj);
        } else {
            return obj;
        }
    }
A {@link FilteredHttpRequest} that applies HTTP decoding to {@link HttpObject}s as they are published.
core/src/main/java/com/linecorp/armeria/server/encoding/HttpDecodedRequest.java