Java tutorial
/* This file is part of Subsonic. Subsonic is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Subsonic 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 General Public License for more details. You should have received a copy of the GNU General Public License along with Subsonic. If not, see <http://www.gnu.org/licenses/>. Copyright 2009 (C) Sindre Mehus */ package net.sourceforge.subsonic.validator; import net.sourceforge.subsonic.command.UserSettingsCommand; import net.sourceforge.subsonic.controller.UserSettingsController; import net.sourceforge.subsonic.service.SecurityService; import net.sourceforge.subsonic.service.SettingsService; import org.apache.commons.lang.StringUtils; import org.springframework.validation.Errors; import org.springframework.validation.Validator; /** * Validator for {@link UserSettingsController}. * * @author Sindre Mehus */ public class UserSettingsValidator implements Validator { private SecurityService securityService; private SettingsService settingsService; /** * {@inheritDoc} */ public boolean supports(Class clazz) { return clazz.equals(UserSettingsCommand.class); } /** * {@inheritDoc} */ public void validate(Object obj, Errors errors) { UserSettingsCommand command = (UserSettingsCommand) obj; String username = command.getUsername(); String email = StringUtils.trimToNull(command.getEmail()); String password = StringUtils.trimToNull(command.getPassword()); String confirmPassword = command.getConfirmPassword(); if (command.isNew()) { if (username == null || username.length() == 0) { errors.rejectValue("username", "usersettings.nousername"); } else if (securityService.getUserByName(username) != null) { errors.rejectValue("username", "usersettings.useralreadyexists"); } else if (email == null) { errors.rejectValue("email", "usersettings.noemail"); } else if (command.isLdapAuthenticated() && !settingsService.isLdapEnabled()) { errors.rejectValue("password", "usersettings.ldapdisabled"); } else if (command.isLdapAuthenticated() && password != null) { errors.rejectValue("password", "usersettings.passwordnotsupportedforldap"); } } if ((command.isNew() || command.isPasswordChange()) && !command.isLdapAuthenticated()) { if (password == null) { errors.rejectValue("password", "usersettings.nopassword"); } else if (!password.equals(confirmPassword)) { errors.rejectValue("password", "usersettings.wrongpassword"); } } if (command.isPasswordChange() && command.isLdapAuthenticated()) { errors.rejectValue("password", "usersettings.passwordnotsupportedforldap"); } } public void setSecurityService(SecurityService securityService) { this.securityService = securityService; } public void setSettingsService(SettingsService settingsService) { this.settingsService = settingsService; } }