/**
* Starts the request process.
*
* @param path the request path
* @throws NullPointerException if the path parameter is null
* @throws IllegalArgumentException if the path does not start with "/"
* @throws IOException if {@link IOException} occurred
* @throws ServletException if {@link ServletException} occurred
*/
public void start(String path)
throws NullPointerException, IllegalArgumentException, IOException, ServletException {
if (path == null) {
throw new NullPointerException("The path parameter is null.");
}
if (!path.startsWith("/")) {
throw new IllegalArgumentException("The path(" + path + ") must start with \"/\".");
}
request.setAttribute(ControllerConstants.FORWARD_SERVLET_PATH_KEY, path);
Router router = RouterFactory.getRouter();
String routingPath = router.route(request, path);
if (routingPath != null) {
int index = routingPath.lastIndexOf('?');
if (index < 0) {
path = routingPath;
} else {
path = routingPath.substring(0, index);
request.setQueryString(routingPath.substring(index + 1));
}
request.setAttribute(ControllerConstants.ROUTED_KEY, true);
}
request.setServletPath(path);
frontController.doFilter(request, response, filterChain);
}
