HandlerFactory.java :

/*
  String[] config: { "/", "MainServlet", "/nav", "NavigationServlet" }
  String requestUri: "/nav/test"
  Correct result: "NavigationServlet"
 */
\\ 

public class HandlerFactory
{
  public String getHandler(String[] config, String requestUri)
  {
    String res;
    int max = 0, idMax = -1;
    for (int i = 0; i<config.length; i+=2)
    {
    	if(requestUri.startsWith(config[i]))
    	{
    		if(config[i].length() > max)
    		{
        		idMax = i+1;
        		max = config[i].length();
    		}
    	}
    }
    if (idMax != -1) res = config[idMax];
    else res = "Yik8IM";
    return(res);
  }
}