1 /** 2 * This file Copyright (c) 2003-2011 Magnolia International 3 * Ltd. (http://www.magnolia-cms.com). All rights reserved. 4 * 5 * 6 * This file is dual-licensed under both the Magnolia 7 * Network Agreement and the GNU General Public License. 8 * You may elect to use one or the other of these licenses. 9 * 10 * This file is distributed in the hope that it will be 11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the 12 * implied warranty of MERCHANTABILITY or FITNESS FOR A 13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT. 14 * Redistribution, except as permitted by whichever of the GPL 15 * or MNA you select, is prohibited. 16 * 17 * 1. For the GPL license (GPL), you can redistribute and/or 18 * modify this file under the terms of the GNU General 19 * Public License, Version 3, as published by the Free Software 20 * Foundation. You should have received a copy of the GNU 21 * General Public License, Version 3 along with this program; 22 * if not, write to the Free Software Foundation, Inc., 51 23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 24 * 25 * 2. For the Magnolia Network Agreement (MNA), this file 26 * and the accompanying materials are made available under the 27 * terms of the MNA which accompanies this distribution, and 28 * is available at http://www.magnolia-cms.com/mna.html 29 * 30 * Any modifications to this file must keep this entire header 31 * intact. 32 * 33 */ 34 package info.magnolia.cms.taglibs; 35 36 import info.magnolia.cms.core.Content; 37 import info.magnolia.cms.core.NodeData; 38 import info.magnolia.cms.i18n.I18nContentSupportFactory; 39 40 import org.apache.commons.lang.StringUtils; 41 import org.slf4j.Logger; 42 import org.slf4j.LoggerFactory; 43 44 45 /** 46 * This is exactly the opposite of the ifNotEmpty tag. 47 * @jsp.tag name="ifEmpty" body-content="JSP" 48 * 49 * @author Marcel Salathe 50 * @author Fabrizio Giustina 51 * @version $Revision $ ($Author $) 52 */ 53 public class IfEmpty extends BaseConditionalContentTag { 54 private static final Logger log = LoggerFactory.getLogger(IfEmpty.class); 55 56 private String nodeDataName = StringUtils.EMPTY; 57 58 /** 59 * @deprecated 60 * @jsp.attribute required="false" rtexprvalue="true" 61 */ 62 public void setAtomName(String name) { 63 this.setNodeDataName(name); 64 } 65 66 /** 67 * @param name , antom name to evaluate 68 * @jsp.attribute required="false" rtexprvalue="true" 69 */ 70 public void setNodeDataName(String name) { 71 this.nodeDataName = name; 72 } 73 74 /** 75 * @deprecated use the contentNodeName attribute instead. 76 * @jsp.attribute required="false" rtexprvalue="true" 77 */ 78 public void setContainerName(String name) { 79 this.setContentNodeName(name); 80 } 81 82 /** 83 * @deprecated use the contentNodeCollectionName attribute instead. 84 * @jsp.attribute required="false" rtexprvalue="true" 85 */ 86 public void setContainerListName(String name) { 87 this.setContentNodeCollectionName(name); 88 } 89 90 protected boolean condition() { 91 Content node = this.getFirstMatchingNode(); 92 93 if (node == null) { 94 return true; 95 } 96 97 if (StringUtils.isNotEmpty(this.getContentNodeCollectionName())) { 98 return !node.hasChildren(); 99 } 100 101 // checking for node existence 102 if(StringUtils.isEmpty(this.nodeDataName) && !node.hasChildren()){ 103 return true; 104 } 105 106 NodeData nodeData = I18nContentSupportFactory.getI18nSupport().getNodeData(node, this.nodeDataName); 107 108 if ((nodeData == null) || !nodeData.isExist() || StringUtils.isEmpty(nodeData.getString())) { 109 return true; 110 } 111 112 return false; 113 } 114 115 }