/***************************************************************************
* Copyright 2006-2016 by Christian Ihle *
* contact@kouchat.net *
* *
* This file is part of KouChat. *
* *
* KouChat is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License as *
* published by the Free Software Foundation, either version 3 of *
* the License, or (at your option) any later version. *
* *
* KouChat is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with KouChat. *
* If not, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
package net.usikkert.kouchat.settings;
import net.usikkert.kouchat.misc.User;
import net.usikkert.kouchat.util.Tools;
/**
* Factory for creating <code>me</code>, the application user.
*
* @author Christian Ihle
*/
public class MeFactory {
/**
* Creates <code>me</code>, the application user.
*
* <p>Note: there must only be one instance of <code>me</code> used in the application.
* Use {@link Settings#getMe()} to access the correct instance.</p>
*
* <p>Sets the following values:</p>
*
* <ul>
* <li>A random user code.</li>
* <li>Nick name from the system property <code>user.name</code>, or the user code if property is invalid.</li>
* <li>Time of logon.</li>
* <li>Time when last idle.</li>
* <li>Operating name from the system property <code>os.name</code>.</li>
* </ul>
*
* @return Me.
*/
public User createMe() {
final int code = createUniqueCode();
final String nickName = createNickName(code);
final User me = new User(nickName, code);
me.setMe(true);
me.setLastIdle(System.currentTimeMillis());
me.setLogonTime(System.currentTimeMillis());
me.setOperatingSystem(System.getProperty("os.name"));
return me;
}
/**
* Creates a random number between 10000000 and 20000000.
*
* @return Unique code for this user.
*/
private int createUniqueCode() {
return 10000000 + (int) (Math.random() * 9999999);
}
/**
* Creates a new default nick name from the name of the user logged in to
* the operating system. The name is shortened to 10 characters and the
* first letter is capitalized.
*
* <p>If the name is invalid as a nick name then the user code is used instead.</p>
*
* @param code The user code.
* @return The created nick name.
*/
private String createNickName(final int code) {
final String userName = System.getProperty("user.name");
if (userName == null) {
return Integer.toString(code);
}
final String[] splitUserName = userName.split(" ");
final String defaultNick = Tools.capitalizeFirstLetter(Tools.shorten(splitUserName[0].trim(), 10));
if (Tools.isValidNick(defaultNick)) {
return defaultNick;
}
return Integer.toString(code);
}
}