Java tutorial
/** * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved. * * This library is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation; either version 2.1 of the License, or (at your option) * any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more * details. */ package com.liferay.ddlform.lar; import com.liferay.portal.kernel.lar.BasePortletDataHandler; import com.liferay.portal.kernel.lar.PortletDataContext; import com.liferay.portal.kernel.util.GetterUtil; import com.liferay.portal.kernel.util.MapUtil; import com.liferay.portal.kernel.util.StringPool; import com.liferay.portal.kernel.util.Validator; import com.liferay.portal.kernel.xml.Document; import com.liferay.portal.kernel.xml.Element; import com.liferay.portal.kernel.xml.SAXReaderUtil; import com.liferay.portlet.dynamicdatalists.lar.DDLPortletDataHandler; import com.liferay.portlet.dynamicdatalists.lar.DDLPortletDataHandlerUtil; import com.liferay.portlet.dynamicdatalists.model.DDLRecordSet; import com.liferay.portlet.dynamicdatalists.service.DDLRecordSetLocalServiceUtil; import com.liferay.portlet.dynamicdatamapping.model.DDMTemplate; import java.util.Map; import javax.portlet.PortletPreferences; /** * @author Michael C. Han */ public class DDLFormPortletDataHandlerImpl extends BasePortletDataHandler { @Override public boolean isAlwaysExportable() { return _ALWAYS_EXPORTABLE; } @Override protected PortletPreferences doDeleteData(PortletDataContext portletDataContext, String portletId, PortletPreferences portletPreferences) throws Exception { if (portletPreferences == null) { return null; } portletPreferences.setValue("formDDMTemplateId", StringPool.BLANK); portletPreferences.setValue("multipleSubmissions", Boolean.FALSE.toString()); portletPreferences.setValue("recordSetId", StringPool.BLANK); return portletPreferences; } @Override protected String doExportData(PortletDataContext portletDataContext, String portletId, PortletPreferences portletPreferences) throws Exception { portletDataContext.addPermissions("com.liferay.portlet.dynamicdatalist", portletDataContext.getScopeGroupId()); long recordSetId = GetterUtil.getLong(portletPreferences.getValue("recordSetId", null)); if (recordSetId == 0) { return StringPool.BLANK; } Document document = SAXReaderUtil.createDocument(); Element rootElement = document.addElement("record-sets"); DDLRecordSet recordSet = DDLRecordSetLocalServiceUtil.getRecordSet(recordSetId); DDLPortletDataHandler ddlPortletDataHandler = DDLPortletDataHandlerUtil.getDDLPortletDataHandler(); ddlPortletDataHandler.exportRecordSet(portletDataContext, rootElement, recordSet); return document.formattedString(); } @Override protected PortletPreferences doImportData(PortletDataContext portletDataContext, String portletId, PortletPreferences portletPreferences, String data) throws Exception { portletDataContext.importPermissions("com.liferay.portlet.dynamicdatalist", portletDataContext.getSourceGroupId(), portletDataContext.getScopeGroupId()); if (Validator.isNull(data)) { return null; } Document document = SAXReaderUtil.read(data); Element rootElement = document.getRootElement(); Element recordSetElement = rootElement.element("record-set"); if (recordSetElement != null) { DDLPortletDataHandler ddlPortletDataHandler = DDLPortletDataHandlerUtil.getDDLPortletDataHandler(); ddlPortletDataHandler.importRecordSet(portletDataContext, recordSetElement); } Map<Long, Long> templateIds = (Map<Long, Long>) portletDataContext.getNewPrimaryKeysMap(DDMTemplate.class); long importedFormDDMTemplateId = GetterUtil.getLong(portletPreferences.getValue("formDDMTemplateId", null)); long formDDMTemplateId = MapUtil.getLong(templateIds, importedFormDDMTemplateId, importedFormDDMTemplateId); portletPreferences.setValue("formDDMTemplateId", String.valueOf(formDDMTemplateId)); long importedRecordSetId = GetterUtil.getLong(portletPreferences.getValue("recordSetId", null)); Map<Long, Long> recordSetIds = (Map<Long, Long>) portletDataContext .getNewPrimaryKeysMap(DDLRecordSet.class); long recordSetId = MapUtil.getLong(recordSetIds, importedRecordSetId, importedRecordSetId); portletPreferences.setValue("recordSetId", String.valueOf(recordSetId)); return portletPreferences; } private static final boolean _ALWAYS_EXPORTABLE = true; }