https://example.com/news/2023/09/11

to

https://example.com/search?year=2023&month=09&day=11

You can easily convert the path info into parameters, by doing something like:

public class ExampleSite extends Site {
    //...
    private void redirectMoved(Context c, String url) {
        c.setStatus(301);
        c.addHeader("Location", url);
    }

    private void setRedirects() {
        //.. 
        get("/news", PathInfoHandling.MAP(
                        m -> m.p("year"),
                        m -> m.p("year").s().p("month"),
                        m -> m.p("year").s().p("month").s().p("day")),
                c -> redirectMoved(c, c.urlFor(searchUrl).params(c.parameters()).toString()));
    }

    @Override
    public void setup() {
        //..
        setRedirects();
    }
}