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.monitoring.web.internal.portlet.action; import com.liferay.monitoring.web.internal.constants.MonitoringPortletKeys; import com.liferay.portal.kernel.cluster.ClusterExecutor; import com.liferay.portal.kernel.cluster.ClusterInvokeThreadLocal; import com.liferay.portal.kernel.cluster.ClusterRequest; import com.liferay.portal.kernel.log.Log; import com.liferay.portal.kernel.log.LogFactoryUtil; 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.security.permission.PermissionChecker; import com.liferay.portal.kernel.servlet.PortalSessionContext; import com.liferay.portal.kernel.servlet.SessionErrors; import com.liferay.portal.kernel.theme.ThemeDisplay; import com.liferay.portal.kernel.util.MethodHandler; import com.liferay.portal.kernel.util.MethodKey; import com.liferay.portal.kernel.util.ParamUtil; import com.liferay.portal.kernel.util.WebKeys; import javax.portlet.ActionRequest; import javax.portlet.ActionResponse; import javax.portlet.PortletSession; import javax.servlet.http.HttpSession; import org.osgi.service.component.annotations.Component; import org.osgi.service.component.annotations.Reference; /** * @author Brian Wing Shun Chan * @author Philip Jones */ @Component(property = { "javax.portlet.name=" + MonitoringPortletKeys.MONITORING, "mvc.command.name=/monitoring/edit_session" }, service = MVCActionCommand.class) public class EditSessionMVCActionCommand extends BaseMVCActionCommand { @Override public void doProcessAction(ActionRequest actionRequest, ActionResponse actionResponse) throws Exception { ThemeDisplay themeDisplay = (ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY); PermissionChecker permissionChecker = themeDisplay.getPermissionChecker(); if (!permissionChecker.isCompanyAdmin()) { SessionErrors.add(actionRequest, PrincipalException.MustBeCompanyAdmin.class.getName()); actionResponse.setRenderParameter("mvcPath", "/error.jsp"); return; } invalidateSession(actionRequest); sendRedirect(actionRequest, actionResponse); } protected void invalidateSession(ActionRequest actionRequest) throws Exception { String sessionId = ParamUtil.getString(actionRequest, "sessionId"); try { PortletSession portletSession = actionRequest.getPortletSession(); String portletSessionId = portletSession.getId(); if (!portletSessionId.equals(sessionId)) { HttpSession userSession = PortalSessionContext.get(sessionId); if (userSession != null) { userSession.invalidate(); return; } if (!_clusterExecutor.isEnabled()) { return; } try { MethodHandler methodHandler = new MethodHandler(_invalidateSessionMethodKey, sessionId); ClusterRequest clusterRequest = ClusterRequest.createMulticastRequest(methodHandler, true); clusterRequest.setFireAndForget(true); _clusterExecutor.execute(clusterRequest); } catch (Throwable t) { _log.error("Unable to notify cluster ", t); } } } catch (Exception e) { _log.error("Unable to invalidate session", e); } } private static void _invalidateSession(String sessionId) { HttpSession userSession = PortalSessionContext.get(sessionId); if (userSession != null) { boolean eanbled = ClusterInvokeThreadLocal.isEnabled(); ClusterInvokeThreadLocal.setEnabled(true); try { userSession.invalidate(); } finally { ClusterInvokeThreadLocal.setEnabled(eanbled); } } } private static final Log _log = LogFactoryUtil.getLog(EditSessionMVCActionCommand.class); private static final MethodKey _invalidateSessionMethodKey = new MethodKey(EditSessionMVCActionCommand.class, "_invalidateSession", String.class); @Reference private ClusterExecutor _clusterExecutor; }