Question

This is a special case where I am stuck dealing with an “enterprise” webapp. The enterprise app is calling request.getContext() and comparing it to another string.

I see I can get the servlet context path using getServletContext.getContextPath(). Is it possible to set the request context path from inside a servlet?

Answer 1

You cannot set it, but you can change its outcome with help of HttpServletRequestWrapper.

public class MyRequest extends HttpServletRequestWrapper {

    public MyRequest(HttpServletRequest request) {
        super(request);
    }

    @Override    
    public String getContextPath() {
        return "a different context path"; // TODO: implement accordingly.
    }

}

Create a Filter which does basically the following in doFilter() method and map it as an early filter on URL pattern of interest.

chain.doFilter(new MyRequest((HttpServletRequest) request), response);