Java tutorial
/******************************************************************************* * Copyright (c) 2010-2014 SAP AG and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * SAP AG - initial API and implementation *******************************************************************************/ package org.eclipse.skalli.view.internal.application; import java.util.ArrayList; import java.util.UUID; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.lang.StringUtils; import org.eclipse.skalli.commons.UUIDUtils; import org.eclipse.skalli.model.Project; import org.eclipse.skalli.model.User; import org.eclipse.skalli.services.Services; import org.eclipse.skalli.services.entity.EntityServices; import org.eclipse.skalli.services.permit.PermitService; import org.eclipse.skalli.services.project.ProjectService; import org.eclipse.skalli.view.Consts; import org.eclipse.skalli.view.internal.window.ProjectWindow; import com.vaadin.terminal.gwt.server.HttpServletRequestListener; import com.vaadin.ui.Window; /** * Project Portal Vaadin application. Implements the layout and screen flow of this application. */ @SuppressWarnings("serial") public class ProjectApplication extends com.vaadin.Application implements HttpServletRequestListener { public static final String DEFAULT_THEME = "simple"; //$NON-NLS-1$ public static final String WINDOW_TITLE = "ProjectPortal"; //$NON-NLS-1$ private String userId; public ProjectApplication(User user) { this.userId = user != null ? StringUtils.lowerCase(user.getUserId()) : null; this.setUser(user); } @Override public void init() { setTheme(DEFAULT_THEME); setMainWindow(new Window(WINDOW_TITLE)); } public void refresh(Project project) { if (project != null) { ProjectWindow projectWindow = (ProjectWindow) getWindow(project.getProjectId()); if (projectWindow != null) { projectWindow.setProject(project); projectWindow.requestRepaint(); } } } @Override public Window getWindow(String name) { Window window = super.getWindow(name); if (window == null) { ProjectService projectService = ((ProjectService) EntityServices.getByEntityClass(Project.class)); Project project = projectService.getProjectByProjectId(name); if (project == null) { UUID uuid = UUIDUtils.asUUID(name); if (uuid != null) { project = projectService.getByUUID(uuid); if (project == null) { project = projectService.getDeletedProject(uuid); } } } // make sure that we have no "dangling" template select views if (project == null) { ArrayList<Window> allWindows = new ArrayList<Window>(getWindows()); for (Window w : allWindows) { removeWindow(w); } } window = new ProjectWindow(this, project); // project==null opens create dialog window.setName(name); addWindow(window); } return window; } public String getLoggedInUser() { return userId; } /************************************** * Interface HttpServletRequestListener ***************************************/ @Override public void onRequestStart(HttpServletRequest request, HttpServletResponse response) { PermitService permitService = Services.getRequiredService(PermitService.class); String windowName = request.getParameter(Consts.ATTRIBUTE_WINDOWNAME); if (StringUtils.isNotBlank(windowName)) { String prefix = Consts.URL_VAADIN_PROJECTS + windowName; String requestUri = request.getRequestURI(); if (requestUri.startsWith(prefix)) { String relativeUri = null; if (requestUri.indexOf("/edit/") > 0) { //$NON-NLS-1$ relativeUri = "edit"; //$NON-NLS-1$ } ProjectWindow window = (ProjectWindow) getWindow(windowName); permitService.login(request, window.getProject()); window.handleRelativeURI(relativeUri); } } else { permitService.login(request, null); } } @Override public void onRequestEnd(HttpServletRequest request, HttpServletResponse response) { } }