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ChatUser.java
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ChatUser.java
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import java.io.*;
import java.net.*;
import java.util.ArrayList;
public class ChatUser extends Thread {
private Socket clientSocket;
private int userID;
private String userName;
private String color;
private String resetColor = "\u001B[0m";
private InetAddress address;
private ArrayList<ChatUser> listOfUsers;
private String message;
private ObjectInputStream ois;
private ObjectOutputStream oos;
public ChatUser(Socket clientSocket, InetAddress address, String userName, String color, int userID){
this.clientSocket = clientSocket;
this.address = address;
this.userName = userName;
this.color = color;
this.userID = userID;
try {
this.oos = new ObjectOutputStream(this.clientSocket.getOutputStream());
this.ois = new ObjectInputStream(clientSocket.getInputStream());
} catch (IOException e) {
System.out.println("IO error in User Server thread.");
this.stop();
}
}
public Socket getClientSocket(){
return this.clientSocket;
}
public int getUserID(){
return this.userID;
}
public String getUserName(){
return this.userName;
}
public String getColor(){
return this.color;
}
public InetAddress getIP_Address(){
return this.address;
}
public static void clearTerminal(){
System.out.print("\033[H\033[2J");
System.out.flush();
}
public void updateListOfUsers(ArrayList <ChatUser> LOU) {
this.listOfUsers = LOU;
}
public ObjectOutputStream getObjectOutputStream(){
return this.oos;
}
public void printListOfUsers() throws IOException{
System.out.println("Server's IP Address: ".concat(InetAddress.getLocalHost().toString()));
System.out.println("Active Users:");
for (ChatUser user : listOfUsers){
System.out.println(" ".concat(user.getUserName()).concat("(IP: ").concat(user.getIP_Address().toString()).concat("; User ID: ").concat(String.valueOf(user.getUserID())).concat(")"));
}
}
public String convertReadObject(){
String returnString = "";
try {
returnString = (String) ois.readObject();
} catch (Exception e){
System.out.println("IO error in User Server thread.");
this.stop();
}
return returnString;
}
public void broadcastJoin(){
synchronized (listOfUsers) {
String msg = "User ".concat(getUserName()).concat("[").concat(getIP_Address().toString()).concat("] has joined!");
for(ChatUser user : listOfUsers){
if(this != user){
try {
user.getObjectOutputStream().writeObject(getColor().concat(msg).concat(resetColor).concat("\n"));
} catch (IOException e) {
System.out.println("IO ERROR! Client " + this.getName() + "terminated abruptly!");
}
}
}
try {
clearTerminal();
printListOfUsers();
} catch (IOException e) {
e.printStackTrace();
this.stop();
}
}
}
public void broadcastMessage(String msg){
synchronized (listOfUsers){
for(ChatUser user : listOfUsers){
if(this != user){
try {
user.getObjectOutputStream().writeObject(getColor().concat(getUserName()).concat(": ").concat(msg).concat(resetColor).concat("\n"));
user.getObjectOutputStream().flush();
} catch (IOException e) {
System.out.println("IO ERROR! Client " + this.getName() + "terminated abruptly!");
try {
handleExit();
} catch (Exception e0) {
e.printStackTrace();
this.stop();
}
}
}
}
}
}
public void broadcastExit(){
String msg = "User ".concat(getUserName()).concat("[").concat(getIP_Address().toString()).concat("] has left!");
synchronized (listOfUsers){
for(ChatUser user : listOfUsers){
if(this != user){
try {
user.getObjectOutputStream().writeObject(getColor().concat(msg).concat(resetColor).concat("\n"));
} catch (IOException e) {
System.out.println("IO ERROR! Client " + this.getName() + "terminated abruptly!");
try {
handleExit();
} catch (Exception e0) {
e.printStackTrace();
}
}
}
}
}
}
public void handleExit() throws IOException {
synchronized(listOfUsers){
for(int i = 0; i < listOfUsers.size(); i++){
if(listOfUsers.get(i) == this){
listOfUsers.remove(i);
break;
}
}
try {
clearTerminal();
printListOfUsers();
} catch (IOException e) {
e.printStackTrace();
this.stop();
}
getObjectOutputStream().writeObject(null);
oos.flush();
}
}
public void run(){
broadcastJoin();
while(true) {
message = convertReadObject();
if(message.equalsIgnoreCase("exit")){
break;
} else {
broadcastMessage(message);
}
}
broadcastExit();
try {
handleExit();
} catch (IOException e){
System.out.println("IO error in User Server thread.");
this.stop();
}
this.stop();
}
}