Restx Router to handle GET on a video stream

GetVideoRoute.java

public class GetVideoRoute extends StdEntityRoute<Void, InputStream> {
    private final VideoResource videoResource;

    public GetVideoRoute(EntityRequestBodyReaderRegistry readerRegistry, VideoResource videoResource) {
        super("Get Video Route",
                readerRegistry.<Void>build(Void.class, Optional.<String>absent()),
                new AbstractEntityResponseWriter<InputStream>(OutputStream.class, "video/mp4") {
                    @Override
                    protected void write(InputStream value, RestxRequest req, RestxResponse resp, RestxContext ctx) throws IOException {
                        try {
                            ByteStreams.copy(value, resp.getOutputStream());
                        } finally {
                            resp.getOutputStream().flush();
                            Closeables.closeQuietly(value);
                        }
                    }
                },
                new StdRestxRequestMatcher("GET", "/videos/{videoId}"),
                HttpStatus.OK, RestxLogLevel.DEFAULT
        );
        this.videoResource = videoResource;
    }

    @Override
    protected Optional<InputStream> doRoute(RestxRequest restxRequest, RestxRequestMatch match, Void aVoid) throws IOException {
        return Optional.of(videoResource.getVideo(match.getPathParam("videoId")));
    }
}