TD2: Ensure chat clients will not send empty message.

[TD_SR.git] / TD2 / client / ThreadClientoSend.java

import java.io.*;
import java.util.Calendar;
import java.util.Random;

public class ThreadClientoSend implements Runnable {
    private SocketClient client;
    //FIXME: use a random name by thread for now, should be setable
    private String randName;

    ThreadClientoSend(SocketClient c) {
        client = c;
        randName = randomName();
    }

    private String randomName() {

        int leftLimit = 97; // letter 'a'
        int rightLimit = 122; // letter 'z'
        int targetStringLength = 8;
        Random random = new Random();
        StringBuilder buffer = new StringBuilder(targetStringLength);
        for (int i = 0; i < targetStringLength; i++) {
            int randomLimitedInt = leftLimit + (int)(random.nextFloat() * (rightLimit - leftLimit + 1));
            buffer.append((char)randomLimitedInt);
        }
        String generatedString = buffer.toString();

        return generatedString;
    }

    public void run() {
        BufferedReader userInput = null;
        try {
            userInput = new BufferedReader(new InputStreamReader(System.in));
            boolean end = false;
            while (!end) {
                String line = userInput.readLine();
                if (line.equals(".")) {
                    end = true;
                }
                if (line.length() != 0) {
                    Message oMsg = new Message(randName, line, Calendar.getInstance());
                    client.sendoMsg(oMsg);
                    System.out.println(Thread.currentThread().getName() + " a envoye " + oMsg);
                }
            }
	    }
        catch (IOException e) {
            System.err.println("IOException: " + e);
            e.printStackTrace();
        }
        finally {
            if (userInput != null) {
                try {
                    userInput.close();
                }
                catch (IOException e) {
                    System.err.println("IOException: " + e);
                    e.printStackTrace();
                }
            }
        }
    }
}