Java tutorial
/** * $URL$ * $Id$ * * Copyright (c) 2006-2009 The Sakai Foundation * * Licensed under the Educational Community 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.opensource.org/licenses/ECL-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. */ package org.sakaiproject.sitestats.tool.wicket.pages; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import org.apache.wicket.AttributeModifier; import org.apache.wicket.Component; import org.apache.wicket.request.mapper.parameter.PageParameters; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.extensions.ajax.markup.html.IndicatingAjaxLink; import org.apache.wicket.markup.head.IHeaderResponse; import org.apache.wicket.markup.head.JavaScriptHeaderItem; import org.apache.wicket.markup.html.WebMarkupContainer; import org.apache.wicket.markup.html.basic.Label; import org.apache.wicket.markup.html.form.Form; import org.apache.wicket.model.CompoundPropertyModel; import org.apache.wicket.model.Model; import org.sakaiproject.sitestats.api.StatsManager; import org.sakaiproject.sitestats.tool.facade.Locator; import org.sakaiproject.sitestats.tool.wicket.components.AdminMenu; import org.sakaiproject.sitestats.tool.wicket.components.AjaxLazyLoadImage; import org.sakaiproject.sitestats.tool.wicket.models.ServerWideModel; /** * @author Nuno Fernandes */ public class ServerWidePage extends BasePage { private static final long serialVersionUID = 1L; // UI Components private Label reportTitle = null; private Label reportDescription = null; private AjaxLazyLoadImage reportChart = null; private Label reportNotes = null; private WebMarkupContainer selectors = null; private ServerWideModel report = null; private String siteId = null; private int selectedWidth = 0; private int selectedHeight = 0; private List<Component> links = new ArrayList<Component>(); private Map<Component, Component> labels = new HashMap<Component, Component>(); public ServerWidePage() { this(null); } public ServerWidePage(PageParameters params) { siteId = Locator.getFacade().getToolManager().getCurrentPlacement().getContext(); boolean allowed = Locator.getFacade().getStatsAuthz().isUserAbleToViewSiteStatsAdmin(siteId); if (allowed) { renderBody(); } else { redirectToInterceptPage(new NotAuthorizedPage()); } } @Override public void renderHead(IHeaderResponse response) { super.renderHead(response); response.render(JavaScriptHeaderItem.forUrl(JQUERYSCRIPT)); } private void renderBody() { add(new AdminMenu("menu")); // model report = new ServerWideModel(); setDefaultModel(new CompoundPropertyModel(this)); Form form = new Form("serverWideReportForm"); add(form); // title, description & notes reportTitle = new Label("report.reportTitle"); reportTitle.setOutputMarkupId(true); form.add(reportTitle); reportDescription = new Label("report.reportDescription"); reportDescription.setOutputMarkupId(true); form.add(reportDescription); reportNotes = new Label("report.reportNotes"); reportNotes.setOutputMarkupId(true); form.add(reportNotes); // chart reportChart = new AjaxLazyLoadImage("reportChart", getPage()) { @Override public byte[] getImageData() { return getChartImage(selectedWidth, selectedHeight); } @Override public byte[] getImageData(int width, int height) { return getChartImage(width, height); } }; reportChart.setOutputMarkupId(true); reportChart.setAutoDetermineChartSizeByAjax(".chartContainer"); form.add(reportChart); // selectors selectors = new WebMarkupContainer("selectors"); selectors.setOutputMarkupId(true); form.add(selectors); makeSelectorLink("reportMonthlyLogin", StatsManager.MONTHLY_LOGIN_REPORT); makeSelectorLink("reportWeeklyLogin", StatsManager.WEEKLY_LOGIN_REPORT); makeSelectorLink("reportDailyLogin", StatsManager.DAILY_LOGIN_REPORT); makeSelectorLink("reportRegularUsers", StatsManager.REGULAR_USERS_REPORT); makeSelectorLink("reportHourlyUsage", StatsManager.HOURLY_USAGE_REPORT); makeSelectorLink("reportTopActivities", StatsManager.TOP_ACTIVITIES_REPORT); makeSelectorLink("reportTool", StatsManager.TOOL_REPORT); } public void setReport(ServerWideModel report) { this.report = report; } public ServerWideModel getReport() { return report; } private byte[] getChartImage(int width, int height) { int _width = (width <= 0) ? 350 : width; int _height = (height <= 0) ? 200 : height; return Locator.getFacade().getServerWideReportManager().generateReportChart(report.getSelectedView(), _width, _height); } @SuppressWarnings("serial") private void makeSelectorLink(final String id, final String view) { IndicatingAjaxLink link = new IndicatingAjaxLink(id) { @Override public void onClick(AjaxRequestTarget target) { // select view report.setSelectedView(view); // make title, description & notes visible reportTitle.add(new AttributeModifier("style", new Model("display: block"))); reportDescription.add(new AttributeModifier("style", new Model("display: block"))); reportNotes.add(new AttributeModifier("style", new Model("display: block"))); reportChart.renderImage(target, true); // toggle selectors link state for (Component lbl : labels.values()) { lbl.setVisible(false); } for (Component lnk : links) { lnk.setVisible(true); } this.setVisible(false); labels.get(this).setVisible(true); // mark component for rendering target.add(selectors); target.add(reportTitle); target.add(reportDescription); target.add(reportNotes); target.appendJavaScript("setMainFrameHeightNoScroll( window.name, 650 )"); } }; link.setVisible(true); links.add(link); selectors.add(link); makeSelectorLabel(link, id + "Lbl"); } private void makeSelectorLabel(final Component link, final String id) { WebMarkupContainer label = new WebMarkupContainer(id); label.setVisible(false); labels.put(link, label); selectors.add(label); } }