pagination

[Garrett Smith]

How can I know if the requested page matches a resource?

/**
 * returns true if the requested resource matches another resource.
 * servlet-mappings in web.xml are acconted for.
 * String resourceURL = "/foo?component=bar";
 */
boolean isRequestResource(HttpServletRequest req, String resourceURL) {
  StringBuffer url = request.getRequestURL();
  
 
  // if the resource at url matches the resource at resourceURL, 
    return true;
  return false;
}

[Bear Bibeault]

pagination?

So you are trying to see if the current request is the result of a specific URL mapping in the deployment descriptor?

[Garrett Smith]

Ideally, yes, that is what I would like. If the container's response is generated from /index.jsp, and the current page is generated from /index.jsp, then that should be true. (can worry about query string later).

To me, this seems to be the safest way to deal with servlet-mapping and welcome-file-list.

At worst, I'd like to have the default file stripped off and compare paths (assuming the same domain). I think this approach is safe for standard pagination links.

boolean isRequestResource(HttpServletRequest req, String resourceURL) {
  StringBuffer url = request.getRequestURL();
  
 
  // if the resource at url matches the resource at resourceURL, 
    return true;
  return false;
}

usage:

// requestURI: "/index.jsp"
boolean isIndexPage = isRequestResource(request, "/"); // true.
 
// requestURI "/bar/foo.jsp"
boolean isFooJSP = isRequestResource(request, "/foo.jsp"); // false
isFooJSP = isRequestResource(request, "/bar/foo.jsp"); // true

[Garrett Smith]

I wonder how normal smart people smartly handle this common problem.

Please advise.

[Bear Bibeault]

I don't think it's a common problem... in fact, I still don't really see what the problem really is. What problem are you actually trying to solve?

[Garrett Smith]

If I go to a page, I want to identify the link to that page.

requestURI: /index.jsp

<!-- this link should be disabled or hilited for "/index.jsp" or "/" -->
<a href="/">home</a> 
 
<!-- this link should be disabled or hilited for "/foo/bar.jsp" -->
<a href="/foo/bar.jsp">bar</a>

[ May 17, 2007: Message edited by: Garrett Smith ]