import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.HashMap;
import java.util.regex.Matcher;
import java.util.regex.Pattern;



public class Server {

    /**
     * @param args
     */
    public static void main(String[] args) {
        HashMap hm = new HashMap();

        while(true) {
            try {

                ServerSocket server = new ServerSocket(5555);
                System.out.println("Server gestartet...");

                Socket client = server.accept();

                // Stream
                OutputStream out = client.getOutputStream();
                PrintWriter writer = new PrintWriter(out);

                InputStream in = client.getInputStream();
                BufferedReader reader = new BufferedReader(new InputStreamReader(in));
                //---------------------------------------


                // Receive
                String s = reader.readLine();

                Pattern p = Pattern.compile("GET /(.*) HTTP/1.1");
                Matcher m = p.matcher(s);

                if(m.find()) {

                    if(!hm.containsKey(s)) {
                        System.out.println("!Erstelle neuen Key!");
                        hm.put(s, new Integer(1));

                    } else {
                        System.out.println("!Inkrementiere Wert!");
                        int tmp = ((Integer)hm.get(s)).intValue();
                        System.out.println("!Alter Wert: " + tmp + "!");
                        hm.put(s, new Integer(++tmp));

                    }
                }

                // Send
                writer.write("HTTP/1.1 200 Ok" + "\n");
                writer.write("Content-type: text/plain" + "\n\n");
                writer.write(hm.get(s) + " Zugriffe\n\n\n");
                writer.flush();
                //--------------------------------------

                writer.close();
                reader.close();
                server.close();

            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}