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.portlet.exportimport.lar;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    import com.liferay.portal.kernel.util.MapUtil;
020    import com.liferay.portal.kernel.util.StringBundler;
021    import com.liferay.portal.kernel.xml.Element;
022    import com.liferay.portal.kernel.xml.ElementHandler;
023    import com.liferay.portal.kernel.xml.ElementProcessor;
024    import com.liferay.portal.security.xml.SecureXMLFactoryProviderUtil;
025    
026    import java.io.StringReader;
027    
028    import java.util.Set;
029    
030    import org.xml.sax.InputSource;
031    import org.xml.sax.XMLReader;
032    
033    /**
034     * @author Zsolt Berentey
035     */
036    public class DeletionSystemEventImporter {
037    
038            public static DeletionSystemEventImporter getInstance() {
039                    return _instance;
040            }
041    
042            public void importDeletionSystemEvents(
043                            final PortletDataContext portletDataContext)
044                    throws Exception {
045    
046                    if (!MapUtil.getBoolean(
047                                    portletDataContext.getParameterMap(),
048                                    PortletDataHandlerKeys.DELETIONS)) {
049    
050                            return;
051                    }
052    
053                    String xml = portletDataContext.getZipEntryAsString(
054                            ExportImportPathUtil.getSourceRootPath(portletDataContext) +
055                                    "/deletion-system-events.xml");
056    
057                    if (xml == null) {
058                            return;
059                    }
060    
061                    XMLReader xmlReader = SecureXMLFactoryProviderUtil.newXMLReader();
062    
063                    ElementHandler elementHandler = new ElementHandler(
064                            new ElementProcessor() {
065    
066                                    @Override
067                                    public void processElement(Element element) {
068                                            doImportDeletionSystemEvents(portletDataContext, element);
069                                    }
070    
071                            },
072                            new String[] {"deletion-system-event"});
073    
074                    xmlReader.setContentHandler(elementHandler);
075    
076                    xmlReader.parse(new InputSource(new StringReader(xml)));
077            }
078    
079            protected void doImportDeletionSystemEvents(
080                    PortletDataContext portletDataContext, Element element) {
081    
082                    Set<StagedModelType> stagedModelTypes =
083                            portletDataContext.getDeletionSystemEventStagedModelTypes();
084    
085                    StagedModelType stagedModelType = new StagedModelType(
086                            element.attributeValue("class-name"),
087                            element.attributeValue("referrer-class-name"));
088    
089                    if (!stagedModelTypes.contains(stagedModelType)) {
090                            return;
091                    }
092    
093                    try {
094                            StagedModelDataHandlerUtil.deleteStagedModel(
095                                    portletDataContext, element);
096                    }
097                    catch (Exception e) {
098                            if (_log.isWarnEnabled()) {
099                                    StringBundler sb = new StringBundler(4);
100    
101                                    sb.append("Unable to process deletion for ");
102                                    sb.append(stagedModelType);
103                                    sb.append(" with UUID ");
104                                    sb.append(element.attributeValue("uuid"));
105    
106                                    _log.warn(sb.toString());
107                            }
108                    }
109            }
110    
111            private DeletionSystemEventImporter() {
112            }
113    
114            private static final Log _log = LogFactoryUtil.getLog(
115                    DeletionSystemEventImporter.class);
116    
117            private static final DeletionSystemEventImporter _instance =
118                    new DeletionSystemEventImporter();
119    
120    }