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.site.my.sites.web.internal.portlet; import com.liferay.portal.kernel.exception.MembershipRequestCommentsException; import com.liferay.portal.kernel.model.MembershipRequestConstants; import com.liferay.portal.kernel.model.Release; import com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet; import com.liferay.portal.kernel.security.auth.PrincipalException; import com.liferay.portal.kernel.service.MembershipRequestLocalService; import com.liferay.portal.kernel.service.ServiceContext; import com.liferay.portal.kernel.service.ServiceContextFactory; import com.liferay.portal.kernel.service.UserLocalService; import com.liferay.portal.kernel.service.UserService; import com.liferay.portal.kernel.servlet.SessionErrors; import com.liferay.portal.kernel.servlet.SessionMessages; import com.liferay.portal.kernel.theme.ThemeDisplay; import com.liferay.portal.kernel.util.ArrayUtil; 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.liveusers.LiveUsers; import com.liferay.site.my.sites.web.internal.constants.MySitesPortletKeys; import java.util.HashSet; import java.util.Set; import javax.portlet.ActionRequest; import javax.portlet.ActionResponse; import javax.portlet.Portlet; import org.osgi.service.component.annotations.Component; import org.osgi.service.component.annotations.Reference; /** * @author Eudaldo Alonso */ @Component(immediate = true, property = { "com.liferay.portlet.css-class-wrapper=portlet-my-sites", "com.liferay.portlet.display-category=category.community", "com.liferay.portlet.icon=/icons/communities.png", "com.liferay.portlet.preferences-owned-by-group=true", "com.liferay.portlet.private-request-attributes=false", "com.liferay.portlet.private-session-attributes=false", "com.liferay.portlet.render-weight=50", "com.liferay.portlet.use-default-template=true", "javax.portlet.display-name=My Sites", "javax.portlet.expiration-cache=0", "javax.portlet.init-param.template-path=/", "javax.portlet.init-param.view-template=/view.jsp", "javax.portlet.name=" + MySitesPortletKeys.MY_SITES, "javax.portlet.resource-bundle=content.Language", "javax.portlet.security-role-ref=power-user,user", "javax.portlet.supports.mime-type=text/html" }, service = Portlet.class) public class MySitesPortlet extends MVCPortlet { public void postMembershipRequest(ActionRequest actionRequest, ActionResponse actionResponse) throws Exception { long groupId = ParamUtil.getLong(actionRequest, "groupId"); String comments = ParamUtil.getString(actionRequest, "comments"); ServiceContext serviceContext = ServiceContextFactory.getInstance(actionRequest); long userId = serviceContext.getUserId(); if (_membershipRequestLocalService.hasMembershipRequest(userId, groupId, MembershipRequestConstants.STATUS_PENDING)) { SessionErrors.add(actionRequest, "membershipAlreadyRequested"); } else { _membershipRequestLocalService.addMembershipRequest(userId, groupId, comments, serviceContext); SessionMessages.add(actionRequest, "membershipRequestSent"); addSuccessMessage(actionRequest, actionResponse); } sendRedirect(actionRequest, actionResponse); } public void updateGroupUsers(ActionRequest actionRequest, ActionResponse actionResponse) throws Exception { ThemeDisplay themeDisplay = (ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY); long groupId = ParamUtil.getLong(actionRequest, "groupId"); long[] addUserIds = StringUtil.split(ParamUtil.getString(actionRequest, "addUserIds"), 0L); addUserIds = filterAddUserIds(groupId, addUserIds); long[] removeUserIds = StringUtil.split(ParamUtil.getString(actionRequest, "removeUserIds"), 0L); removeUserIds = filterRemoveUserIds(groupId, removeUserIds); ServiceContext serviceContext = ServiceContextFactory.getInstance(actionRequest); _userService.addGroupUsers(groupId, addUserIds, serviceContext); _userService.unsetGroupUsers(groupId, removeUserIds, serviceContext); LiveUsers.joinGroup(themeDisplay.getCompanyId(), groupId, addUserIds); LiveUsers.leaveGroup(themeDisplay.getCompanyId(), groupId, removeUserIds); } protected long[] filterAddUserIds(long groupId, long[] userIds) throws Exception { Set<Long> filteredUserIds = new HashSet<>(userIds.length); for (long userId : userIds) { if (!_userLocalService.hasGroupUser(groupId, userId)) { filteredUserIds.add(userId); } } return ArrayUtil.toArray(filteredUserIds.toArray(new Long[filteredUserIds.size()])); } protected long[] filterRemoveUserIds(long groupId, long[] userIds) throws Exception { Set<Long> filteredUserIds = new HashSet<>(userIds.length); for (long userId : userIds) { if (_userLocalService.hasGroupUser(groupId, userId)) { filteredUserIds.add(userId); } } return ArrayUtil.toArray(filteredUserIds.toArray(new Long[filteredUserIds.size()])); } @Override protected boolean isSessionErrorException(Throwable cause) { if (cause instanceof MembershipRequestCommentsException || cause instanceof PrincipalException || super.isSessionErrorException(cause)) { return true; } return false; } @Reference(unbind = "-") protected void setMembershipRequestLocalService(MembershipRequestLocalService membershipRequestLocalService) { _membershipRequestLocalService = membershipRequestLocalService; } @Reference(target = "(&(release.bundle.symbolic.name=com.liferay.site.my.sites.web)(release.schema.version=1.0.0))", unbind = "-") protected void setRelease(Release release) { } @Reference(unbind = "-") protected void setUserLocalService(UserLocalService userLocalService) { _userLocalService = userLocalService; } @Reference(unbind = "-") protected void setUserService(UserService userService) { _userService = userService; } private MembershipRequestLocalService _membershipRequestLocalService; private UserLocalService _userLocalService; private UserService _userService; }