2 * Copyright (C) 2016 - 2024 Free Software Foundation
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 package org.mxchange.addressbook.validator.user;
19 import java.text.MessageFormat;
20 import javax.enterprise.inject.spi.CDI;
21 import javax.faces.application.FacesMessage;
22 import javax.faces.component.UIComponent;
23 import javax.faces.context.FacesContext;
24 import javax.faces.validator.FacesValidator;
25 import javax.faces.validator.ValidatorException;
26 import org.mxchange.addressbook.beans.user.list.AddressbookUserListWebViewBean;
27 import org.mxchange.addressbook.beans.user.list.AddressbookUserListWebViewController;
28 import org.mxchange.jcoreee.validator.number.BaseNumberValidator;
31 * A validator for user ids
33 * @author Roland Häder<roland@mxchange.org>
35 @FacesValidator ("UserIdValidator")
36 public class AddressbookUserIdValidator extends BaseNumberValidator {
41 private static AddressbookUserListWebViewController USER_LIST_CONTROLLER;
46 private static final long serialVersionUID = 12_869_569_314_764_690L;
49 public void validate (final FacesContext context, final UIComponent component, final Object value) throws ValidatorException {
50 // All accepted, required fields
51 final String[] requiredFields = {"userId"}; //NOI18N
53 // Pre-validation (example: not null, not a string, empty string ...)
54 super.preValidate(context, component, value, requiredFields, false);
56 // Is the instance there?
57 if (null == USER_LIST_CONTROLLER) {
58 // Get bean from CDI directly
59 USER_LIST_CONTROLLER = CDI.current().select(AddressbookUserListWebViewBean.class).get();
63 final Long userId = (Long) value;
66 final Boolean ifUserExists = USER_LIST_CONTROLLER.ifUserIdExists(userId);
68 // Is the user id valid?
71 throw new ValidatorException(new FacesMessage(MessageFormat.format("No user found with id {0}. Please check your link.", userId))); //NOI18N