Java tutorial
/** * Copyright (c) 2000-present Liferay, Inc. All rights reserved. * * This file is part of Liferay Social Office. Liferay Social Office is free * software: you can redistribute it and/or modify it under the terms of the GNU * Affero General Public License as published by the Free Software Foundation, * either version 3 of the License, or (at your option) any later version. * * Liferay Social Office 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 Affero General Public License * for more details. * * You should have received a copy of the GNU General Public License along with * Liferay Social Office. If not, see http://www.gnu.org/licenses/agpl-3.0.html. */ package com.liferay.so.announcements.portlet; import com.liferay.portal.kernel.json.JSONFactoryUtil; import com.liferay.portal.kernel.json.JSONObject; import com.liferay.portal.kernel.portlet.LiferayPortletResponse; import com.liferay.portal.kernel.servlet.SessionErrors; import com.liferay.portal.kernel.servlet.SessionMessages; import com.liferay.portal.kernel.util.GetterUtil; import com.liferay.portal.kernel.util.ParamUtil; import com.liferay.portal.kernel.util.StringUtil; import com.liferay.portal.kernel.util.WebKeys; import com.liferay.portal.theme.ThemeDisplay; import com.liferay.portlet.announcements.EntryContentException; import com.liferay.portlet.announcements.EntryDisplayDateException; import com.liferay.portlet.announcements.EntryExpirationDateException; import com.liferay.portlet.announcements.EntryTitleException; import com.liferay.portlet.announcements.EntryURLException; import com.liferay.portlet.announcements.service.AnnouncementsEntryServiceUtil; import com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet; import java.util.Calendar; import javax.portlet.ActionRequest; import javax.portlet.ActionResponse; import javax.portlet.PortletException; import javax.portlet.PortletURL; /** * @author Raymond Aug * @author Evan Thibodeau */ public class AnnouncementsPortlet extends MVCPortlet { public void deleteEntry(ActionRequest actionRequest, ActionResponse actionResponse) throws Exception { JSONObject jsonObject = JSONFactoryUtil.createJSONObject(); long entryId = ParamUtil.getLong(actionRequest, "entryId"); try { AnnouncementsEntryServiceUtil.deleteEntry(entryId); SessionMessages.add(actionRequest, "announcementDeleted"); jsonObject.put("success", true); } catch (Exception e) { jsonObject.put("message", translate(actionRequest, "the-announcement-could-not-be-deleted")); jsonObject.put("success", false); } writeJSON(actionRequest, actionResponse, jsonObject); } @Override public void processAction(ActionRequest actionRequest, ActionResponse actionResponse) throws PortletException { try { String actionName = ParamUtil.getString(actionRequest, ActionRequest.ACTION_NAME); if (actionName.equals("deleteEntry")) { deleteEntry(actionRequest, actionResponse); } else if (actionName.equals("saveEntry")) { saveEntry(actionRequest, actionResponse); } else { super.processAction(actionRequest, actionResponse); } } catch (Exception e) { throw new PortletException(e); } } public void saveEntry(ActionRequest actionRequest, ActionResponse actionResponse) throws Exception { JSONObject jsonObject = JSONFactoryUtil.createJSONObject(); try { doSaveEntry(actionRequest, actionResponse); long entryId = ParamUtil.getLong(actionRequest, "entryId"); if (entryId <= 0) { SessionMessages.add(actionRequest, "announcementAdded"); } else { SessionMessages.add(actionRequest, "announcementUpdated"); } LiferayPortletResponse liferayPortletResponse = (LiferayPortletResponse) actionResponse; PortletURL portletURL = liferayPortletResponse.createRenderURL(); portletURL.setParameter("mvcPath", "/manage_entries.jsp"); portletURL.setParameter("distributionScope", ParamUtil.getString(actionRequest, "distributionScope")); jsonObject.put("redirect", portletURL.toString()); jsonObject.put("success", true); } catch (Exception e) { String message = null; if (e instanceof EntryContentException) { message = "please-enter-valid-content"; } else if (e instanceof EntryDisplayDateException) { message = "please-enter-a-valid-display-date"; } else if (e instanceof EntryExpirationDateException) { message = "please-enter-a-valid-expiration-date"; } else if (e instanceof EntryTitleException) { message = "please-enter-a-valid-title"; } else if (e instanceof EntryURLException) { message = "please-enter-a-valid-url"; } else { throw new PortletException(e); } SessionErrors.clear(actionRequest); jsonObject.put("message", translate(actionRequest, message)); jsonObject.put("success", false); } writeJSON(actionRequest, actionResponse, jsonObject); } protected void doSaveEntry(ActionRequest actionRequest, ActionResponse actionResponse) throws Exception { ThemeDisplay themeDisplay = (ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY); long entryId = ParamUtil.getLong(actionRequest, "entryId"); String[] distributionScopeParts = StringUtil.split(ParamUtil.getString(actionRequest, "distributionScope")); long classNameId = 0; long classPK = 0; if (distributionScopeParts.length == 2) { classNameId = GetterUtil.getLong(distributionScopeParts[0]); if (classNameId > 0) { classPK = GetterUtil.getLong(distributionScopeParts[1]); } } String title = ParamUtil.getString(actionRequest, "title"); String content = ParamUtil.getString(actionRequest, "content"); String url = ParamUtil.getString(actionRequest, "url"); String type = ParamUtil.getString(actionRequest, "type"); int displayDateMonth = ParamUtil.getInteger(actionRequest, "displayDateMonth"); int displayDateDay = ParamUtil.getInteger(actionRequest, "displayDateDay"); int displayDateYear = ParamUtil.getInteger(actionRequest, "displayDateYear"); int displayDateHour = ParamUtil.getInteger(actionRequest, "displayDateHour"); int displayDateMinute = ParamUtil.getInteger(actionRequest, "displayDateMinute"); int displayDateAmPm = ParamUtil.getInteger(actionRequest, "displayDateAmPm"); if (displayDateAmPm == Calendar.PM) { displayDateHour += 12; } boolean displayImmediately = ParamUtil.getBoolean(actionRequest, "displayImmediately"); int expirationDateMonth = ParamUtil.getInteger(actionRequest, "expirationDateMonth"); int expirationDateDay = ParamUtil.getInteger(actionRequest, "expirationDateDay"); int expirationDateYear = ParamUtil.getInteger(actionRequest, "expirationDateYear"); int expirationDateHour = ParamUtil.getInteger(actionRequest, "expirationDateHour"); int expirationDateMinute = ParamUtil.getInteger(actionRequest, "expirationDateMinute"); int expirationDateAmPm = ParamUtil.getInteger(actionRequest, "expirationDateAmPm"); if (expirationDateAmPm == Calendar.PM) { expirationDateHour += 12; } int priority = ParamUtil.getInteger(actionRequest, "priority"); boolean alert = ParamUtil.getBoolean(actionRequest, "alert"); if (entryId <= 0) { // Add entry AnnouncementsEntryServiceUtil.addEntry(themeDisplay.getPlid(), classNameId, classPK, title, content, url, type, displayDateMonth, displayDateDay, displayDateYear, displayDateHour, displayDateMinute, displayImmediately, expirationDateMonth, expirationDateDay, expirationDateYear, expirationDateHour, expirationDateMinute, priority, alert); } else { // Update entry AnnouncementsEntryServiceUtil.updateEntry(entryId, title, content, url, type, displayDateMonth, displayDateDay, displayDateYear, displayDateHour, displayDateMinute, displayImmediately, expirationDateMonth, expirationDateDay, expirationDateYear, expirationDateHour, expirationDateMinute, priority); } } }