Java tutorial
/** * Copyright (c) 2000-present 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.wiki.web.internal.portlet.action; import com.liferay.portal.kernel.exception.PortalException; import com.liferay.portal.kernel.model.TrashedModel; import com.liferay.portal.kernel.module.configuration.ConfigurationProviderUtil; import com.liferay.portal.kernel.portlet.bridges.mvc.BaseMVCActionCommand; import com.liferay.portal.kernel.portlet.bridges.mvc.MVCActionCommand; import com.liferay.portal.kernel.security.auth.PrincipalException; import com.liferay.portal.kernel.service.ServiceContext; import com.liferay.portal.kernel.service.ServiceContextFactory; import com.liferay.portal.kernel.servlet.SessionErrors; import com.liferay.portal.kernel.settings.PortletInstanceSettingsLocator; import com.liferay.portal.kernel.theme.PortletDisplay; import com.liferay.portal.kernel.theme.ThemeDisplay; import com.liferay.portal.kernel.util.ArrayUtil; import com.liferay.portal.kernel.util.Constants; import com.liferay.portal.kernel.util.ParamUtil; import com.liferay.portal.kernel.util.StringPool; import com.liferay.portal.kernel.util.StringUtil; import com.liferay.portal.kernel.util.WebKeys; import com.liferay.trash.kernel.service.TrashEntryService; import com.liferay.trash.kernel.util.TrashUtil; import com.liferay.wiki.constants.WikiPortletKeys; import com.liferay.wiki.exception.DuplicateNodeNameException; import com.liferay.wiki.exception.NoSuchNodeException; import com.liferay.wiki.exception.NodeNameException; import com.liferay.wiki.exception.RequiredNodeException; import com.liferay.wiki.model.WikiNode; import com.liferay.wiki.service.WikiNodeLocalService; import com.liferay.wiki.service.WikiNodeService; import com.liferay.wiki.util.WikiCacheHelper; import com.liferay.wiki.util.WikiCacheThreadLocal; import com.liferay.wiki.web.configuration.WikiPortletInstanceOverriddenConfiguration; import java.util.ArrayList; import java.util.List; import javax.portlet.ActionRequest; import javax.portlet.ActionResponse; import org.osgi.service.component.annotations.Component; import org.osgi.service.component.annotations.Reference; /** * @author Brian Wing Shun Chan */ @Component(immediate = true, property = { "javax.portlet.name=" + WikiPortletKeys.WIKI, "javax.portlet.name=" + WikiPortletKeys.WIKI_ADMIN, "javax.portlet.name=" + WikiPortletKeys.WIKI_DISPLAY, "mvc.command.name=/wiki/edit_node" }, service = MVCActionCommand.class) public class EditNodeMVCActionCommand extends BaseMVCActionCommand { protected void deleteNode(ActionRequest actionRequest, boolean moveToTrash) throws Exception { ThemeDisplay themeDisplay = (ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY); int nodeCount = _wikiNodeLocalService.getNodesCount(themeDisplay.getScopeGroupId()); if (nodeCount == 1) { SessionErrors.add(actionRequest, RequiredNodeException.class); return; } List<TrashedModel> trashedModels = new ArrayList<>(); long[] deleteNodeIds = null; long nodeId = ParamUtil.getLong(actionRequest, "nodeId"); if (nodeId > 0) { deleteNodeIds = new long[] { nodeId }; } else { deleteNodeIds = ParamUtil.getLongValues(actionRequest, "rowIdsWikiNode"); } WikiPortletInstanceOverriddenConfiguration wikiPortletInstanceOverriddenConfiguration = getWikiPortletInstanceOverriddenConfiguration( actionRequest); for (long deleteNodeId : deleteNodeIds) { WikiNode wikiNode = _wikiNodeService.getNode(deleteNodeId); String oldName = wikiNode.getName(); WikiCacheThreadLocal.setClearCache(false); WikiNode trashWikiNode = null; if (moveToTrash) { trashWikiNode = _wikiNodeService.moveNodeToTrash(deleteNodeId); trashedModels.add(trashWikiNode); } else { _wikiNodeService.deleteNode(deleteNodeId); } _wikiCacheHelper.clearCache(deleteNodeId); updateSettings(wikiPortletInstanceOverriddenConfiguration, oldName, StringPool.BLANK); } WikiCacheThreadLocal.setClearCache(true); if (moveToTrash && !trashedModels.isEmpty()) { TrashUtil.addTrashSessionMessages(actionRequest, trashedModels); hideDefaultSuccessMessage(actionRequest); } } @Override protected void doProcessAction(ActionRequest actionRequest, ActionResponse actionResponse) throws Exception { String cmd = ParamUtil.getString(actionRequest, Constants.CMD); try { if (cmd.equals(Constants.ADD) || cmd.equals(Constants.UPDATE)) { updateNode(actionRequest); } else if (cmd.equals(Constants.DELETE)) { deleteNode(actionRequest, false); } else if (cmd.equals(Constants.MOVE_TO_TRASH)) { deleteNode(actionRequest, true); } else if (cmd.equals(Constants.RESTORE)) { restoreTrashEntries(actionRequest); } else if (cmd.equals(Constants.SUBSCRIBE)) { subscribeNode(actionRequest); } else if (cmd.equals(Constants.UNSUBSCRIBE)) { unsubscribeNode(actionRequest); } } catch (Exception e) { if (e instanceof NoSuchNodeException || e instanceof PrincipalException) { SessionErrors.add(actionRequest, e.getClass()); actionResponse.setRenderParameter("mvcPath", "/wiki/error.jsp"); } else if (e instanceof DuplicateNodeNameException || e instanceof NodeNameException) { SessionErrors.add(actionRequest, e.getClass()); } else { throw e; } } } protected WikiPortletInstanceOverriddenConfiguration getWikiPortletInstanceOverriddenConfiguration( ActionRequest actionRequest) throws PortalException { ThemeDisplay themeDisplay = (ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY); PortletDisplay portletDisplay = themeDisplay.getPortletDisplay(); WikiPortletInstanceOverriddenConfiguration wikiPortletInstanceOverriddenConfiguration = ConfigurationProviderUtil .getConfiguration(WikiPortletInstanceOverriddenConfiguration.class, new PortletInstanceSettingsLocator(themeDisplay.getLayout(), portletDisplay.getId())); return wikiPortletInstanceOverriddenConfiguration; } protected void restoreTrashEntries(ActionRequest actionRequest) throws Exception { long[] restoreTrashEntryIds = StringUtil.split(ParamUtil.getString(actionRequest, "restoreTrashEntryIds"), 0L); for (long restoreTrashEntryId : restoreTrashEntryIds) { _trashEntryService.restoreEntry(restoreTrashEntryId); } } @Reference(unbind = "-") protected void setTrashEntryService(TrashEntryService trashEntryService) { _trashEntryService = trashEntryService; } @Reference(unbind = "-") protected void setWikiCacheHelper(WikiCacheHelper wikiCacheHelper) { _wikiCacheHelper = wikiCacheHelper; } @Reference(unbind = "-") protected void setWikiNodeLocalService(WikiNodeLocalService wikiNodeLocalService) { _wikiNodeLocalService = wikiNodeLocalService; } @Reference(unbind = "-") protected void setWikiNodeService(WikiNodeService wikiNodeService) { _wikiNodeService = wikiNodeService; } protected void subscribeNode(ActionRequest actionRequest) throws Exception { long nodeId = ParamUtil.getLong(actionRequest, "nodeId"); _wikiNodeService.subscribeNode(nodeId); } protected void unsubscribeNode(ActionRequest actionRequest) throws Exception { long nodeId = ParamUtil.getLong(actionRequest, "nodeId"); _wikiNodeService.unsubscribeNode(nodeId); } protected void updateNode(ActionRequest actionRequest) throws Exception { long nodeId = ParamUtil.getLong(actionRequest, "nodeId"); String name = ParamUtil.getString(actionRequest, "name"); String description = ParamUtil.getString(actionRequest, "description"); ServiceContext serviceContext = ServiceContextFactory.getInstance(WikiNode.class.getName(), actionRequest); if (nodeId <= 0) { // Add node _wikiNodeService.addNode(name, description, serviceContext); } else { // Update node WikiNode wikiNode = _wikiNodeService.getNode(nodeId); String oldName = wikiNode.getName(); _wikiNodeService.updateNode(nodeId, name, description, serviceContext); WikiPortletInstanceOverriddenConfiguration wikiPortletInstanceOverriddenConfiguration = getWikiPortletInstanceOverriddenConfiguration( actionRequest); updateSettings(wikiPortletInstanceOverriddenConfiguration, oldName, name); } } protected void updateSettings( WikiPortletInstanceOverriddenConfiguration wikiPortletInstanceOverriddenConfiguration, String oldName, String newName) throws Exception { String[] hiddenNodes = wikiPortletInstanceOverriddenConfiguration.hiddenNodes(); ArrayUtil.replace(hiddenNodes, oldName, newName); wikiPortletInstanceOverriddenConfiguration.setHiddenNodes(hiddenNodes); String[] visibleNodes = wikiPortletInstanceOverriddenConfiguration.visibleNodes(); ArrayUtil.replace(visibleNodes, oldName, newName); wikiPortletInstanceOverriddenConfiguration.setVisibleNodes(visibleNodes); wikiPortletInstanceOverriddenConfiguration.store(); } private TrashEntryService _trashEntryService; private WikiCacheHelper _wikiCacheHelper; private WikiNodeLocalService _wikiNodeLocalService; private WikiNodeService _wikiNodeService; }