001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.taglib.aui;
016    
017    import com.liferay.portal.kernel.util.StringUtil;
018    import com.liferay.portal.kernel.util.Validator;
019    import com.liferay.taglib.aui.base.BaseAlertTag;
020    
021    import javax.servlet.http.HttpServletRequest;
022    
023    /**
024     * @author Eduardo Lundgren
025     * @author Bruno Basto
026     * @author Nathan Cavanaugh
027     * @author Julio Camarero
028     */
029    public class AlertTag extends BaseAlertTag {
030    
031            @Override
032            protected void setAttributes(HttpServletRequest request) {
033                    super.setAttributes(request);
034    
035                    String id = getId();
036    
037                    if (Validator.isNull(id)) {
038                            id = StringUtil.randomId();
039                    }
040    
041                    setId(id);
042    
043                    setNamespacedAttribute(request, "id", id);
044            }
045    
046    }