XMPP chat Java client with smack

XMPP Chatting

1. Connection
2. Register User
3. Login
4. Display user list
5. Send message
6. Change password
7. disconnect

import java.io.IOException;

import java.util.Collection;

import org.jivesoftware.smack.AccountManager;

import org.jivesoftware.smack.Chat;

import org.jivesoftware.smack.ConnectionConfiguration;

import org.jivesoftware.smack.MessageListener;

import org.jivesoftware.smack.Roster;

import org.jivesoftware.smack.RosterEntry;

import org.jivesoftware.smack.SASLAuthentication;

import org.jivesoftware.smack.XMPPConnection;

import org.jivesoftware.smack.XMPPException;

import org.jivesoftware.smack.packet.Message;

public class ChatClient implements {

XMPPConnection connection;

public void login(String userName, String password) throws XMPPException {

ConnectionConfiguration cc = new ConnectionConfiguration("127.0.0.1", 5222, "127.0.0.1");

connection = new XMPPConnection(cc);

try {

connection.connect();

SASLAuthentication.supportSASLMechanism("PLAIN", 0);

connection.login(userName, password, "resource");// Login

System.out.println(connection.isAuthenticated());

} catch (Exception e) {

}

}

public void addUser(String userName, String password) throws XMPPException {

AccountManager accountManager = new AccountManager(connection);

try {

accountManager.createAccount(userName, password); // Create User

System.out.println("User Created");

accountManager.changePassword("12345"); // Change password

} catch (XMPPException e1) {

System.out.println(e1.getMessage());

}

}

public void changePassword(String password) throws XMPPException {

AccountManager accountManager = new AccountManager(connection);

try {

accountManager.changePassword("12345"); // Change password

System.out.println("Password Changed");

} catch (XMPPException e1) {

System.out.println(e1.getMessage());

}

}

public void sendMessage(String message, String to) throws XMPPException {

Chat chat = connection.getChatManager().createChat(to, this);

chat.sendMessage(message);

}

public void displayBuddyList() {

Roster roster = connection.getRoster();

Collection<RosterEntry> entries = roster.getEntries();

System.out.println("\n\n" + entries.size() + " buddy(ies):");

for (RosterEntry r : entries) {

System.out.println(r.getUser());

}

}

public void disconnect() {

connection.disconnect();

}

public static void main(String args[]) throws XMPPException, IOException {

ChatClient c = new ChatClient();

String msg = "hello";

XMPPConnection.DEBUG_ENABLED = false;

c.addUser("hswain", "12345");

c.login("hswain@127.0.0.1", "12345");

c.displayBuddyList();

c.sendMessage(msg, "test@127.0.0.1"); // Send Message

c.changePassword("54321");

c.disconnect();

System.exit(0);

}

}