29 lines
699 B
Java
29 lines
699 B
Java
package com.university.chat.Server;
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import java.util.concurrent.ConcurrentHashMap;
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public class UserManager {
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private final ConcurrentHashMap<String, ClientSession> users = new ConcurrentHashMap<>();
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public boolean addUser(String username, ClientSession session) {
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return users.putIfAbsent(username, session) == null;
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}
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public void removeUser(String username) {
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users.remove(username);
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}
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public ClientSession getUser(String username) {
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return users.get(username);
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}
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public String listUsers() {
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return users.keySet().toString();
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}
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public Iterable<ClientSession> getAllSessions() {
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return users.values();
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}
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}
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