Java tutorial
/** * (C) Copyright 2013 Jabylon (http://www.jabylon.org) 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 */ /** * */ package org.jabylon.rest.ui.wicket; import java.nio.charset.Charset; import java.util.Iterator; import java.util.Locale; import javax.servlet.http.HttpServletRequest; import org.apache.wicket.Application; import org.apache.wicket.ConverterLocator; import org.apache.wicket.IConverterLocator; import org.apache.wicket.Page; import org.apache.wicket.ThreadContext; import org.apache.wicket.authroles.authentication.AbstractAuthenticatedWebSession; import org.apache.wicket.authroles.authentication.AuthenticatedWebApplication; import org.apache.wicket.markup.html.WebPage; import org.apache.wicket.protocol.http.WebSession; import org.apache.wicket.request.IExceptionMapper; import org.apache.wicket.request.IRequestMapper; import org.apache.wicket.request.Request; import org.apache.wicket.request.Url; import org.apache.wicket.request.http.WebRequest; import org.apache.wicket.request.mapper.CompoundRequestMapper; import org.apache.wicket.request.mapper.ICompoundRequestMapper; import org.apache.wicket.util.IProvider; import org.eclipse.emf.common.util.URI; import org.jabylon.properties.PropertiesPackage; import org.jabylon.rest.ui.Activator; import org.jabylon.rest.ui.model.EMFFactoryConverter; import org.jabylon.rest.ui.model.OSGiAwareBundleStringResourceLoader; import org.jabylon.rest.ui.security.CDOAuthenticatedSession; import org.jabylon.rest.ui.security.LoginPage; import org.jabylon.rest.ui.security.PermissionBasedAuthorizationStrategy; import org.jabylon.rest.ui.util.PageProvider; import org.jabylon.rest.ui.wicket.components.AjaxFeedbackListener; import org.jabylon.rest.ui.wicket.config.SettingsPage; import org.jabylon.rest.ui.wicket.injector.OSGiInjector; import org.jabylon.rest.ui.wicket.pages.ResourcePage; import org.jabylon.rest.ui.wicket.pages.StartupPage; import org.jabylon.rest.ui.wicket.pages.WelcomePage; import org.osgi.framework.BundleContext; import org.osgi.framework.ServiceReference; import org.osgi.util.tracker.ServiceTracker; import org.osgi.util.tracker.ServiceTrackerCustomizer; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * @author Johannes Utzig (jutzig.dev@googlemail.com) * */ public class JabylonApplication extends AuthenticatedWebApplication { @SuppressWarnings("rawtypes") private ServiceTracker pageTracker; private static Logger logger = LoggerFactory.getLogger(JabylonApplication.class); /* * (non-Javadoc) * * @see org.apache.wicket.Application#getHomePage() */ @Override public Class<? extends Page> getHomePage() { // if(startupPageMapped=) // URIResolver connector = Activator.getDefault().getRepositoryLookup(); // if (connector != null) return WelcomePage.class; // return StartupPage.class; } @Override public WebRequest newWebRequest(HttpServletRequest servletRequest, String filterPath) { // https://github.com/jutzig/jabylon/issues/47 return new CustomWebRequest(servletRequest, filterPath); } @SuppressWarnings({ "rawtypes", "unchecked" }) @Override protected void init() { super.init(); mount(new ResouceAwareMountedMapper("/", StartupPage.class)); //$NON-NLS-1$ getRequestCycleSettings().setResponseRequestEncoding("UTF-8"); getMarkupSettings().setDefaultMarkupEncoding("UTF-8"); OSGiInjector injector = new OSGiInjector(this); getBehaviorInstantiationListeners().add(injector); getResourceSettings().getStringResourceLoaders().add(new OSGiAwareBundleStringResourceLoader()); getApplicationSettings().setInternalErrorPage(CustomInternalErrorPage.class); getComponentInstantiationListeners().add(injector); getSecuritySettings().setAuthorizationStrategy(new PermissionBasedAuthorizationStrategy()); getAjaxRequestTargetListeners().add(new AjaxFeedbackListener()); final BundleContext bundleContext = Activator.getDefault().getContext(); pageTracker = new ServiceTracker(bundleContext, PageProvider.class, new ServiceTrackerCustomizer() { @Override public Object addingService(ServiceReference ref) { PageProvider service = (PageProvider) bundleContext.getService(ref); Object pathObject = ref.getProperty(PageProvider.MOUNT_PATH_PROPERTY); if (pathObject instanceof String) { String path = (String) pathObject; Class pageClass = service.getPageClass(); if (pageClass == ResourcePage.class) { //workaround so wicket doesn't choke because the thread context isn't filled (wrong thread) ThreadContext.setApplication(JabylonApplication.this); ThreadContext.setSession(new WebSession(createFakeRequest(null))); //if the main page is ready, we can mount the rest of the pages initMainPages(); } logger.info("Mounting new page {} at {}", pageClass, path); //$NON-NLS-1$ mount(new ResouceAwareMountedMapper(path, pageClass)); } else { logger.warn("Ignored Page {} because it was registered with invalid path property '{}'", //$NON-NLS-1$ service, pathObject); } return service; } @Override public void modifiedService(ServiceReference arg0, Object arg1) { // TODO Auto-generated method stub } @Override public void removedService(ServiceReference ref, Object service) { Object pathObject = ref.getProperty(PageProvider.MOUNT_PATH_PROPERTY); if (pathObject instanceof String) { String path = (String) pathObject; internalUmount(path); } } }); pageTracker.open(); } private void internalUmount(String path) { //workaround so wicket doesn't choke because the thread context isn't filled (wrong thread) Application application = ThreadContext.getApplication(); if (application == null) ThreadContext.setApplication(JabylonApplication.this); if (ThreadContext.getSession() == null) ThreadContext.setSession(new WebSession(createFakeRequest(null))); // unmount(path); /* * umount seems to be greedy, e.g. a prefix match is enough. * That's troublesome because umount /settings/log will also umount /settings */ ICompoundRequestMapper rootRequestMapperAsCompound = getRootRequestMapperAsCompound(); if (rootRequestMapperAsCompound instanceof CompoundRequestMapper) { CompoundRequestMapper compound = (CompoundRequestMapper) rootRequestMapperAsCompound; Iterator<IRequestMapper> it = compound.iterator(); while (it.hasNext()) { IRequestMapper iRequestMapper = it.next(); if (iRequestMapper instanceof ResouceAwareMountedMapper) { ResouceAwareMountedMapper mapper = (ResouceAwareMountedMapper) iRequestMapper; if (path.equals(mapper.getMountPath())) { logger.info("Unmounting {}", path); getRootRequestMapperAsCompound().remove(mapper); } } } } } private void initMainPages() { unmount("/"); mount(new ResouceAwareMountedMapper("/login", LoginPage.class)); //$NON-NLS-1$ mount(new ResouceAwareMountedMapper("/settings", SettingsPage.class)); //$NON-NLS-1$ } @Override protected IConverterLocator newConverterLocator() { ConverterLocator converterLocator = new ConverterLocator(); converterLocator.set(URI.class, new EMFFactoryConverter<URI>(PropertiesPackage.Literals.URI.getName())); converterLocator.set(Locale.class, new EMFFactoryConverter<Locale>(PropertiesPackage.Literals.LOCALE.getName())); return converterLocator; } @Override protected Class<? extends AbstractAuthenticatedWebSession> getWebSessionClass() { return CDOAuthenticatedSession.class; } @Override protected Class<? extends WebPage> getSignInPageClass() { return LoginPage.class; } @Override public IProvider<IExceptionMapper> getExceptionMapperProvider() { return new CustomExceptionMapperProvider(); } private static class CustomExceptionMapperProvider implements IProvider<IExceptionMapper> { @Override public IExceptionMapper get() { return new CustomExceptionMapper(); } } Request createFakeRequest(final Url url) { return new Request() { @Override public Url getUrl() { if (url == null) return new Url(); return url; } @Override public Locale getLocale() { return Locale.getDefault(); } @Override public Object getContainerRequest() { return null; } @Override public Url getClientUrl() { return null; } @Override public Charset getCharset() { return null; } }; } }