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.journal.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.StringUtil; 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.journal.DuplicateStructureElementException; import com.liferay.portlet.journal.DuplicateStructureIdException; import com.liferay.portlet.journal.NoSuchStructureException; import com.liferay.portlet.journal.RequiredStructureException; import com.liferay.portlet.journal.StructureIdException; import com.liferay.portlet.journal.StructureInheritanceException; import com.liferay.portlet.journal.StructureNameException; import com.liferay.portlet.journal.StructureXsdException; import com.liferay.portlet.journal.model.JournalStructure; import com.liferay.portlet.journal.service.JournalStructureServiceUtil; import com.liferay.portlet.journal.util.JournalUtil; 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 Raymond Aug */ 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); JournalStructure structure = null; try { if (cmd.equals(Constants.ADD) || cmd.equals(Constants.UPDATE)) { structure = updateStructure(actionRequest); } else if (cmd.equals(Constants.DELETE)) { deleteStructures(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.journal.error"); } else if (e instanceof DuplicateStructureElementException || e instanceof DuplicateStructureIdException || e instanceof RequiredStructureException || e instanceof StructureIdException || e instanceof StructureInheritanceException || 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 id // 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.journal.error"); } else { throw e; } } return mapping.findForward(getForward(renderRequest, "portlet.journal.edit_structure")); } protected void deleteStructures(ActionRequest actionRequest) throws Exception { long groupId = ParamUtil.getLong(actionRequest, "groupId"); String[] deleteStructureIds = StringUtil.split(ParamUtil.getString(actionRequest, "deleteStructureIds")); for (String deleteStructureId : deleteStructureIds) { JournalStructureServiceUtil.deleteStructure(groupId, deleteStructureId); JournalUtil.removeRecentStructure(actionRequest, deleteStructureId); } } protected String getSaveAndContinueRedirect(PortletConfig portletConfig, ActionRequest actionRequest, JournalStructure structure, String redirect) throws Exception { ThemeDisplay themeDisplay = (ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY); String originalRedirect = ParamUtil.getString(actionRequest, "originalRedirect"); PortletURLImpl portletURL = new PortletURLImpl(actionRequest, portletConfig.getPortletName(), themeDisplay.getPlid(), PortletRequest.RENDER_PHASE); portletURL.setWindowState(actionRequest.getWindowState()); portletURL.setParameter("struts_action", "/journal/edit_structure"); portletURL.setParameter(Constants.CMD, Constants.UPDATE, false); portletURL.setParameter("redirect", redirect, false); portletURL.setParameter("originalRedirect", originalRedirect, false); portletURL.setParameter("groupId", String.valueOf(structure.getGroupId()), false); portletURL.setParameter("structureId", structure.getStructureId(), false); return portletURL.toString(); } protected JournalStructure updateStructure(ActionRequest actionRequest) throws Exception { String cmd = ParamUtil.getString(actionRequest, Constants.CMD); long groupId = ParamUtil.getLong(actionRequest, "groupId"); String structureId = ParamUtil.getString(actionRequest, "structureId"); boolean autoStructureId = ParamUtil.getBoolean(actionRequest, "autoStructureId"); String parentStructureId = ParamUtil.getString(actionRequest, "parentStructureId"); Map<Locale, String> nameMap = LocalizationUtil.getLocalizationMap(actionRequest, "name"); Map<Locale, String> descriptionMap = LocalizationUtil.getLocalizationMap(actionRequest, "description"); String xsd = ParamUtil.getString(actionRequest, "xsd"); ServiceContext serviceContext = ServiceContextFactory.getInstance(JournalStructure.class.getName(), actionRequest); JournalStructure structure = null; if (cmd.equals(Constants.ADD)) { // Add structure structure = JournalStructureServiceUtil.addStructure(groupId, structureId, autoStructureId, parentStructureId, nameMap, descriptionMap, xsd, serviceContext); } else { // Update structure structure = JournalStructureServiceUtil.updateStructure(groupId, structureId, parentStructureId, nameMap, descriptionMap, xsd, serviceContext); } // Recent structures JournalUtil.addRecentStructure(actionRequest, structure); return structure; } }