SearchEngine.java

import java.io.IOException;
import java.net.URI;
import java.util.ArrayList;

public class SearchEngine implements URLHandler{
    ArrayList<String> list = new ArrayList<>();

    public String handleRequest(URI url) {
        if (url.getPath().equals("/")) {
            return "Welcome, this is the main page. Hi! :)";

        } else if(url.getPath().equals("/search")){
            String[] parameters = url.getQuery().split("=");
            if (parameters[0].equals("s")) {
                String toReturn = "Here is your list of strings: ";

                for(int i = 0; i < list.size(); i++){
                    toReturn += list.get(i) + " ";
                }

                return toReturn;
            
            }else{
                return "404 Not found!";
            }
        } else {
            System.out.println("Path: " + url.getPath());
            if (url.getPath().contains("/add")) {
                String[] parameters = url.getQuery().split("=");
                if (parameters[0].equals("s")) {
                    list.add(parameters[1]);
                    return parameters[1];
                }
            }

            return "404 Not Found!";
        }
        
    }

    public static void main(String[] args) throws IOException {
        if(args.length == 0){
            System.out.println("Missing port number! Try any number between 1024 to 49151");
            return;
        }

        int port = Integer.parseInt(args[0]);

        Server.start(port, new SearchEngine());
    }
}