1 /** 2 * This file Copyright (c) 2008-2010 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.module.rssaggregator.importhandler; 35 36 import info.magnolia.cms.core.Content; 37 import static info.magnolia.module.rssaggregator.importhandler.FilterPredicate.Condition; 38 import info.magnolia.module.rssaggregator.util.ContentMapper; 39 import org.apache.commons.lang.StringUtils; 40 41 import static java.util.Arrays.asList; 42 43 /** 44 * Maps a content node representing a {@link FilterPredicate} to a FilterPredicate. 45 * 46 * @author Rob van der Linden Vooren 47 */ 48 public class FilterPredicateContentMapper implements ContentMapper<FilterPredicate> { 49 50 /** 51 * Map a content node representing a FilterPredicate. Will return <code>null</code> if are properties 52 * 53 * @param filterNode the content node to map to a FilterPredicate 54 * @return the FilterPredicate built from the given content node, or <code>null</code> if one of the properties 55 * (condition, property, regex) are is blank. 56 */ 57 public FilterPredicate map(Content filterNode) { 58 String condition = filterNode.getNodeData("condition").getString(); 59 String property = filterNode.getNodeData("property").getString(); 60 String regularExpression = filterNode.getNodeData("regex").getString(); 61 for (String value : asList(condition, property, regularExpression)) { 62 if (StringUtils.isBlank(value)) { 63 // In this case no filters have actually been defined via the CMS, however an 'empty' filter definition 64 // entry still is present. 65 return null; 66 } 67 } 68 return new FilterPredicate(Condition.valueOf(condition), property, regularExpression); 69 } 70 71 }