protected String getPath(Context context) 
{
        ServletWebContext swcontext = (ServletWebContext) context;
        HttpServletRequest request = swcontext.getRequest();
        String path = null;
        boolean extension = false;
        // For prefix matching, match on the path info
        path = (String) request.getAttribute(Constants.INCLUDE_PATH_INFO);
        if (path == null) {
            path = request.getPathInfo();
        }
        // For extension matching, match on the servlet path
        if (path == null) {
            path =
                (String) request.getAttribute(Constants.INCLUDE_SERVLET_PATH);
            if (path == null) {
                path = request.getServletPath();
            }
            if (path == null) {
                throw new IllegalArgumentException
                    ("No path information in request");
            }
            extension = true;
        }
        // Strip the module prefix and extension (if any)
        ModuleConfig moduleConfig = (ModuleConfig)
            swcontext.get(getModuleConfigKey());
        String prefix = moduleConfig.getPrefix();
        if (!path.startsWith(prefix)) {
            throw new IllegalArgumentException("Path does not start with '" +
                                               prefix + "'");
        }
        path = path.substring(prefix.length());
        if (extension) {
            int slash = path.lastIndexOf("/");
            int period = path.lastIndexOf(".");
            if ((period  >= 0) && (period  > slash)) {
                path = path.substring(0, period);
            }
        }
        return (path);
}