Java tutorial
/******************************************************************************* * This file is part of the EEG-database project * * ========================================== * * Copyright (C) 2013 by University of West Bohemia (http://www.zcu.cz/en/) * * *********************************************************************************************************************** * * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the * specific language governing permissions and limitations under the License. * * *********************************************************************************************************************** * * ListOfMembersGroupPage.java, 2013/10/02 00:01 Jakub Rinkes ******************************************************************************/ package cz.zcu.kiv.eegdatabase.wui.ui.groups; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import java.util.Map; import cz.zcu.kiv.eegdatabase.data.pojo.Person; import cz.zcu.kiv.eegdatabase.data.pojo.ResearchGroup; import cz.zcu.kiv.eegdatabase.wui.core.person.PersonFacade; import cz.zcu.kiv.eegdatabase.wui.ui.groups.form.TransferOwnershipPage; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.wicket.RestartResponseAtInterceptPageException; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.ajax.attributes.AjaxCallListener; import org.apache.wicket.ajax.attributes.AjaxRequestAttributes; import org.apache.wicket.ajax.form.AjaxFormComponentUpdatingBehavior; import org.apache.wicket.ajax.markup.html.AjaxLink; import org.apache.wicket.authroles.authorization.strategies.role.annotations.AuthorizeInstantiation; import org.apache.wicket.markup.html.WebMarkupContainer; import org.apache.wicket.markup.html.basic.EnumLabel; import org.apache.wicket.markup.html.basic.Label; import org.apache.wicket.markup.html.form.DropDownChoice; import org.apache.wicket.markup.html.form.EnumChoiceRenderer; import org.apache.wicket.markup.html.link.BookmarkablePageLink; import org.apache.wicket.markup.html.list.ListItem; import org.apache.wicket.markup.html.list.PropertyListView; import org.apache.wicket.model.LoadableDetachableModel; import org.apache.wicket.model.Model; import org.apache.wicket.request.mapper.parameter.PageParameters; import org.apache.wicket.spring.injection.annot.SpringBean; import org.apache.wicket.util.string.StringValue; import cz.zcu.kiv.eegdatabase.data.pojo.ResearchGroupMembership; import cz.zcu.kiv.eegdatabase.data.pojo.ResearchGroupMembershipId; import cz.zcu.kiv.eegdatabase.wui.app.EEGDataBaseApplication; import cz.zcu.kiv.eegdatabase.wui.components.menu.button.ButtonPageMenu; import cz.zcu.kiv.eegdatabase.wui.components.page.BasePage; import cz.zcu.kiv.eegdatabase.wui.components.page.MenuPage; import cz.zcu.kiv.eegdatabase.wui.components.utils.PageParametersUtils; import cz.zcu.kiv.eegdatabase.wui.components.utils.ResourceUtils; import cz.zcu.kiv.eegdatabase.wui.core.GroupRole; import cz.zcu.kiv.eegdatabase.wui.core.group.ResearchGroupFacade; import cz.zcu.kiv.eegdatabase.wui.core.security.SecurityFacade; import cz.zcu.kiv.eegdatabase.wui.ui.groups.form.AddMemberToGroupPage; /** * Page with list of members in research group. * * @author Jakub Rinkes * */ @AuthorizeInstantiation(value = { "ROLE_READER", "ROLE_USER", "ROLE_EXPERIMENTER", "ROLE_ADMIN" }) public class ListOfMembersGroupPage extends MenuPage { private static final long serialVersionUID = 7280002331574740721L; protected Log log = LogFactory.getLog(getClass()); @SpringBean SecurityFacade securityFacade; @SpringBean ResearchGroupFacade facade; @SpringBean PersonFacade personFacade; private boolean isLoggedPersonOwner; public ListOfMembersGroupPage(PageParameters parameters) { StringValue value = parseParameters(parameters); int groupId = value.toInt(); Person owner = personFacade.getLoggedPerson(); List<ResearchGroup> groups = facade.getResearchGroupsWhereOwner(owner); for (ResearchGroup group : groups) { if (group.getResearchGroupId() == groupId) { isLoggedPersonOwner = true; break; } } setPageTitle(ResourceUtils.getModel("pageTitle.listOfGroupMembers")); add(new ButtonPageMenu("leftMenu", prepareLeftMenu())); if (!securityFacade.userIsExperimenterInGroup(groupId)) throw new RestartResponseAtInterceptPageException(ResearchGroupsDetailPage.class, PageParametersUtils.getDefaultPageParameters(groupId)); setupComponents(groupId); } private void setupComponents(final int groupId) { add(new Label("title", facade.getResearchGroupTitle(groupId))); final WebMarkupContainer container = new WebMarkupContainer("container"); container.setOutputMarkupPlaceholderTag(true); LoadableDetachableModel<List<Map<String, Object>>> listModel = new LoadableDetachableModel<List<Map<String, Object>>>() { private static final long serialVersionUID = 1L; @Override protected List<Map<String, Object>> load() { return facade.getListOfGroupMembers(groupId); } }; final boolean isUserGroupAdmin = securityFacade.userIsAdminInGroup(groupId); PropertyListView<Map<String, Object>> members = new PropertyListView<Map<String, Object>>("members", listModel) { private static final long serialVersionUID = 1L; @Override protected void populateItem(final ListItem<Map<String, Object>> item) { final Map<String, Object> person = item.getModelObject(); boolean enabled = true; final int personId = (Integer) person.get("personId"); final ResearchGroupMembershipId id = new ResearchGroupMembershipId(personId, groupId); item.add(new Label("givenname", (String) person.get("givenname"))); item.add(new Label("surname", (String) person.get("surname"))); item.add(new Label("username", (String) (person.get("username") != null ? person.get("username") : "---"))); GroupRole role = GroupRole.valueOf((String) person.get("authority")); item.add(new EnumLabel<GroupRole>("authority", role)); final DropDownChoice<GroupRole> roles = new DropDownChoice<GroupRole>("roles", new Model<GroupRole>(role), Arrays.asList(GroupRole.values()), new EnumChoiceRenderer<GroupRole>()); roles.add(new AjaxFormComponentUpdatingBehavior("onChange") { private static final long serialVersionUID = 1L; @Override protected void onUpdate(AjaxRequestTarget target) { GroupRole groupRole = roles.getModelObject(); ResearchGroupMembership membership = facade.readMemberhip(id); membership.setAuthority(groupRole.name()); facade.updateMemberhip(membership); setResponsePage(getPage()); } }); roles.setVisibilityAllowed(isUserGroupAdmin); Person owner = personFacade.getPerson((String) person.get("username")); List<ResearchGroup> groups = facade.getResearchGroupsWhereOwner(owner); for (ResearchGroup group : groups) { if (group.getResearchGroupId() == groupId) { enabled = false; } } item.setEnabled(enabled); item.add(roles); AjaxLink<Void> removeLink = (new AjaxLink<Void>("removeFromGroupLink") { private static final long serialVersionUID = 1L; @Override public void onClick(AjaxRequestTarget target) { ResearchGroupMembership membership = facade.readMemberhip(id); facade.deleteMemberhip(membership); setResponsePage(getPage()); } @Override protected void updateAjaxAttributes(AjaxRequestAttributes attributes) { super.updateAjaxAttributes(attributes); AjaxCallListener ajaxCallListener = new AjaxCallListener(); ajaxCallListener.onPrecondition("return confirm('" + ResourceUtils.getString("link.confirm.sureToRemoveUserFromGroup") + "');"); attributes.getAjaxCallListeners().add(ajaxCallListener); } }); removeLink.setVisibilityAllowed(isUserGroupAdmin); removeLink.setVisible(enabled); item.add(removeLink); } }; container.add(members); BookmarkablePageLink<Void> backToDetailLink = new BookmarkablePageLink<Void>("backLink", ResearchGroupsDetailPage.class, PageParametersUtils.getDefaultPageParameters(groupId)); BookmarkablePageLink<Void> addMemberLink = new BookmarkablePageLink<Void>("addMemberLink", AddMemberToGroupPage.class, PageParametersUtils.getDefaultPageParameters(groupId)); BookmarkablePageLink<Void> transferOwnershipLink = new BookmarkablePageLink<Void>("transferOwnershipLink", TransferOwnershipPage.class, PageParametersUtils.getDefaultPageParameters(groupId)); addMemberLink.setVisibilityAllowed(isUserGroupAdmin); transferOwnershipLink.setVisibilityAllowed(isLoggedPersonOwner); add(container, backToDetailLink, addMemberLink, transferOwnershipLink); } private GroupPageLeftMenu[] prepareLeftMenu() { List<GroupPageLeftMenu> list = new ArrayList<GroupPageLeftMenu>(); boolean authorizedToRequestGroupRole = securityFacade.isAuthorizedToRequestGroupRole(); for (GroupPageLeftMenu tmp : GroupPageLeftMenu.values()) list.add(tmp); if (!authorizedToRequestGroupRole) list.remove(GroupPageLeftMenu.REQUEST_FOR_GROUP_ROLE); GroupPageLeftMenu[] array = new GroupPageLeftMenu[list.size()]; return list.toArray(array); } private StringValue parseParameters(PageParameters parameters) { StringValue value = parameters.get(BasePage.DEFAULT_PARAM_ID); if (value.isNull() || value.isEmpty()) throw new RestartResponseAtInterceptPageException(EEGDataBaseApplication.get().getHomePage()); return value; } }