/** 
 * This program is an example from the book "Internet 
 * programming with Java" by Svetlin Nakov. It is freeware. 
 * For more information: http://www.nakov.com/books/inetjava/ 
 */ 
import java.io.*; 
import java.net.ServerSocket; 
import java.net.Socket; 
import java.util.Date; 
 
public class DictionaryServer { 
    public static int LISTENING_PORT = 3333; 
 
    public static void main(String[] args) throws IOException { 
        ServerSocket serverSocket = 
            new ServerSocket(LISTENING_PORT); 
     System.out.println("Server started."); 
        while (true) { 
            Socket socket = serverSocket.accept(); 
            DictionaryClientThread dictionaryClientThread = 
                new DictionaryClientThread(socket); 
            dictionaryClientThread.start(); 
        } 
    } 
} 
 
class DictionaryClientThread extends Thread { 
    private int CLIENT_REQUEST_TIMEOUT = 15*60*1000; // 15 min. 
    private Socket mSocket; 
    private BufferedReader mSocketReader; 
    private PrintWriter mSocketWriter; 
 
    public DictionaryClientThread(Socket aSocket) 
            throws IOException { 
        mSocket = aSocket; 
        mSocket.setSoTimeout(CLIENT_REQUEST_TIMEOUT); 
        mSocketReader = new BufferedReader( 
            new InputStreamReader(mSocket.getInputStream())); 
        mSocketWriter = new PrintWriter( 
            new OutputStreamWriter(mSocket.getOutputStream())); 
    } 
 
    public void run() { 
        System.out.println(new Date().toString() + " : " + 
            "Accepted client : " + mSocket.getInetAddress() + 
            ":" + mSocket.getPort()); 
        try { 
            mSocketWriter.println("Dictionary server ready."); 
            mSocketWriter.flush(); 
            while (!isInterrupted()) { 
                String word = mSocketReader.readLine(); 
                if (word == null) 
                    break; // Client closed the socket 
                String translation = getTranslation(word); 
                mSocketWriter.println(translation); 
                mSocketWriter.flush(); 
            } 
        } catch (Exception ex) { 
            ex.printStackTrace(); 
        } 
        System.out.println(new Date().toString() + " : " + 
            "Connection lost : " + mSocket.getInetAddress() + 
            ":" + mSocket.getPort()); 
    } 
 
    private String getTranslation(String aWord) { 
        if (aWord.equalsIgnoreCase("network")) { 
            return "мрежа"; 
        } else if (aWord.equalsIgnoreCase("firewall")) { 
            return "защитна стена"; 
        } else { 
            return "! непозната дума !"; 
        } 
    } 
}