private String serverHandshake(Connection connection) throws IOException, ClassNotFoundException{
connection.send(new Message(MessageType.NAME_REQUEST,"Введите имя клиента"));
Message receive=connection.receive();
if(receive.getType().equals(MessageType.USER_NAME)&&
!receive.getData().isEmpty()&&!connectionMap.containsKey(receive.getData()))
{connectionMap.putIfAbsent(receive.getData(),connection);
connection.send(new Message(MessageType.NAME_ACCEPTED,"имя клиента принято"));
}
else {serverHandshake(connection);}
return receive.getData();
}package com.javarush.task.task30.task3008;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutionException;
public class Server {
private static Map<String, Connection> connectionMap=new ConcurrentHashMap<String, Connection>();
private static class Handler extends Thread {
private Socket socket;
public Handler(Socket socket) {
this.socket = socket;
}
private String serverHandshake(Connection connection) throws IOException, ClassNotFoundException{
connection.send(new Message(MessageType.NAME_REQUEST,"Введите имя клиента"));
Message receive=connection.receive();
if(receive.getType().equals(MessageType.USER_NAME)&&
!receive.getData().isEmpty()&&!connectionMap.containsKey(receive.getData()))
{connectionMap.putIfAbsent(receive.getData(),connection);
connection.send(new Message(MessageType.NAME_ACCEPTED,"имя клиента принято"));
}
else {serverHandshake(connection);}
return receive.getData();
}
@Override
public void run() {
super.run();
}
}
public static void sendBroadcastMessage(Message message){
for (Map.Entry<String, Connection> entry : connectionMap.entrySet()) {
try {
entry.getValue().send(message);
} catch (IOException e) {
e.printStackTrace();
ConsoleHelper.writeMessage(entry.getKey()+" сообщение не доставлено");
}
}
}
public static void main(String[] args) {
try(ServerSocket serverSocket = new ServerSocket(ConsoleHelper.readInt())) {
System.out.println("Сервер звпущен");
while (true) {
Socket clientSocket = serverSocket.accept();
new Handler(clientSocket).start();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}