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.portlet.dynamicdatamapping.action; import com.liferay.portal.kernel.servlet.SessionErrors; import com.liferay.portal.kernel.util.Constants; import com.liferay.portal.kernel.util.LocalizationUtil; import com.liferay.portal.kernel.util.ParamUtil; import com.liferay.portal.kernel.util.Validator; import com.liferay.portal.security.auth.PrincipalException; import com.liferay.portal.service.ServiceContext; import com.liferay.portal.service.ServiceContextFactory; import com.liferay.portal.struts.PortletAction; import com.liferay.portal.theme.ThemeDisplay; import com.liferay.portal.util.PortalUtil; import com.liferay.portal.util.WebKeys; import com.liferay.portlet.PortletURLImpl; import com.liferay.portlet.dynamicdatamapping.NoSuchStructureException; import com.liferay.portlet.dynamicdatamapping.RequiredStructureException; import com.liferay.portlet.dynamicdatamapping.StructureDuplicateElementException; import com.liferay.portlet.dynamicdatamapping.StructureNameException; import com.liferay.portlet.dynamicdatamapping.StructureXsdException; import com.liferay.portlet.dynamicdatamapping.model.DDMStructure; import com.liferay.portlet.dynamicdatamapping.model.DDMStructureConstants; import com.liferay.portlet.dynamicdatamapping.service.DDMStructureServiceUtil; import java.util.Locale; import java.util.Map; import javax.portlet.ActionRequest; import javax.portlet.ActionResponse; import javax.portlet.PortletConfig; import javax.portlet.PortletRequest; import javax.portlet.RenderRequest; import javax.portlet.RenderResponse; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; /** * @author Brian Wing Shun Chan * @author Bruno Basto * @author Eduardo Lundgren */ public class EditStructureAction extends PortletAction { @Override public void processAction(ActionMapping mapping, ActionForm form, PortletConfig portletConfig, ActionRequest actionRequest, ActionResponse actionResponse) throws Exception { String cmd = ParamUtil.getString(actionRequest, Constants.CMD); DDMStructure structure = null; try { if (cmd.equals(Constants.ADD) || cmd.equals(Constants.UPDATE)) { structure = updateStructure(actionRequest); } else if (cmd.equals(Constants.DELETE)) { deleteStructure(actionRequest); } if (Validator.isNotNull(cmd)) { String redirect = ParamUtil.getString(actionRequest, "redirect"); if (structure != null) { boolean saveAndContinue = ParamUtil.getBoolean(actionRequest, "saveAndContinue"); if (saveAndContinue) { redirect = getSaveAndContinueRedirect(portletConfig, actionRequest, structure, redirect); } } sendRedirect(actionRequest, actionResponse, redirect); } } catch (Exception e) { if (e instanceof NoSuchStructureException || e instanceof PrincipalException) { SessionErrors.add(actionRequest, e.getClass().getName()); setForward(actionRequest, "portlet.dynamic_data_mapping.error"); } else if (e instanceof RequiredStructureException || e instanceof StructureDuplicateElementException || e instanceof StructureNameException || e instanceof StructureXsdException) { SessionErrors.add(actionRequest, e.getClass().getName(), e); if (e instanceof RequiredStructureException) { String redirect = PortalUtil.escapeRedirect(ParamUtil.getString(actionRequest, "redirect")); if (Validator.isNotNull(redirect)) { actionResponse.sendRedirect(redirect); } } } else { throw e; } } } @Override public ActionForward render(ActionMapping mapping, ActionForm form, PortletConfig portletConfig, RenderRequest renderRequest, RenderResponse renderResponse) throws Exception { try { String cmd = ParamUtil.getString(renderRequest, Constants.CMD); if (!cmd.equals(Constants.ADD)) { ActionUtil.getStructure(renderRequest); } } catch (NoSuchStructureException nsse) { // Let this slide because the user can manually input a structure // key for a new structure that does not yet exist } catch (Exception e) { if (//e instanceof NoSuchStructureException || e instanceof PrincipalException) { SessionErrors.add(renderRequest, e.getClass().getName()); return mapping.findForward("portlet.dynamic_data_mapping.error"); } else { throw e; } } return mapping.findForward(getForward(renderRequest, "portlet.dynamic_data_mapping.edit_structure")); } protected void deleteStructure(ActionRequest actionRequest) throws Exception { long structureId = ParamUtil.getLong(actionRequest, "structureId"); DDMStructureServiceUtil.deleteStructure(structureId); } protected String getSaveAndContinueRedirect(PortletConfig portletConfig, ActionRequest actionRequest, DDMStructure structure, String redirect) throws Exception { ThemeDisplay themeDisplay = (ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY); String availableFields = ParamUtil.getString(actionRequest, "availableFields"); String saveCallback = ParamUtil.getString(actionRequest, "saveCallback"); PortletURLImpl portletURL = new PortletURLImpl(actionRequest, portletConfig.getPortletName(), themeDisplay.getPlid(), PortletRequest.RENDER_PHASE); portletURL.setWindowState(actionRequest.getWindowState()); portletURL.setParameter(Constants.CMD, Constants.UPDATE, false); portletURL.setParameter("struts_action", "/dynamic_data_mapping/edit_structure"); portletURL.setParameter("redirect", redirect, false); portletURL.setParameter("groupId", String.valueOf(structure.getGroupId()), false); portletURL.setParameter("structureId", String.valueOf(structure.getStructureId()), false); portletURL.setParameter("availableFields", availableFields, false); portletURL.setParameter("saveCallback", saveCallback, false); return portletURL.toString(); } protected DDMStructure updateStructure(ActionRequest actionRequest) throws Exception { String cmd = ParamUtil.getString(actionRequest, Constants.CMD); long structureId = ParamUtil.getLong(actionRequest, "structureId"); long groupId = ParamUtil.getLong(actionRequest, "groupId"); long classNameId = ParamUtil.getLong(actionRequest, "classNameId"); Map<Locale, String> nameMap = LocalizationUtil.getLocalizationMap(actionRequest, "name"); Map<Locale, String> descriptionMap = LocalizationUtil.getLocalizationMap(actionRequest, "description"); String xsd = ParamUtil.getString(actionRequest, "xsd"); String storageType = ParamUtil.getString(actionRequest, "storageType"); ServiceContext serviceContext = ServiceContextFactory.getInstance(DDMStructure.class.getName(), actionRequest); DDMStructure structure = null; if (cmd.equals(Constants.ADD)) { structure = DDMStructureServiceUtil.addStructure(groupId, classNameId, null, nameMap, descriptionMap, xsd, storageType, DDMStructureConstants.TYPE_DEFAULT, serviceContext); } else if (cmd.equals(Constants.UPDATE)) { structure = DDMStructureServiceUtil.updateStructure(structureId, nameMap, descriptionMap, xsd, serviceContext); } return structure; } }