1. Modify SEOURLPatterns.xml with Care
Adjust the patterns to remove /LanguageToken/StoreToken while ensuring that default values are passed where required.
Update the defaultValue attributes in the <seourl:paramToUrlMapping> section:

<seourl:paramToUrlMapping>
    <seourl:mapping name="LanguageToken" value="?langId?" defaultValue="en"/>
    <seourl:mapping name="StoreToken" value="?storeId?" defaultValue="clientstorename"/>
    <seourl:mapping name="CatalogToken" value="?catalogId?" defaultValue="defaultCatalogId"/>
</seourl:paramToUrlMapping>
Ensure that the removed tokens are mapped to backend defaults where needed.


2. Update the SEO URL Mapper
Extend or override the default SEOURLMapper class to handle custom URL parsing and mapping.
Example: Intercept and rewrite URLs dynamically in the mapRequest or resolveURL methods.

public class CustomSEOURLMapper extends SEOURLMapper {
    @Override
    public void mapRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
        String requestURL = request.getRequestURI();
        if (requestURL.contains("/en/clientstorename")) {
            String newURL = requestURL.replace("/en/clientstorename", "");
            response.sendRedirect(newURL);
        } else {
            super.mapRequest(request, response);
        }
    }
}

3. Update Struts or Servlet Configuration
If direct XML changes don’t resolve the issue, configure Struts actions or servlet filters to map incoming requests without /en/clientstorename to the appropriate views.
4. Debugging and Testing
Enable detailed logging in WebSphere Commerce by updating the logging.properties file or enabling verbose trace logging in the admin console.
Look for errors or unhandled exceptions in the mappings and validate backend service calls.
5. Alternative Approach Using URL Rewriting
Add URL rewriting logic in a servlet filter to remove /en/clientstorename and forward the modified request to the backend:

public class URLRewriteFilter implements Filter {
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
            throws IOException, ServletException {
        HttpServletRequest httpRequest = (HttpServletRequest) req;
        String requestURL = httpRequest.getRequestURI();
        if (requestURL.contains("/en/clientstorename")) {
            String newURL = requestURL.replace("/en/clientstorename", "");
            req.getRequestDispatcher(newURL).forward(req, res);
            return;
        }
        chain.doFilter(req, res);
    }
}

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