Java Code Examples for javax.servlet.ServletContext#setAttribute()

@RequestMapping(value = "get_channel", method = RequestMethod.GET)
public @ResponseBody
ModelAndView getChannel(HttpSession session, HttpServletRequest request){
    ServletContext context = session.getServletContext();
    Integer subFlag = (Integer)request.getSession().getAttribute("sub_flag");
    if(subFlag == null){
        session.setAttribute("sub_flag", 1);
        context.setAttribute("onlineCount", (Integer)context.getAttribute("onlineCount") - 1);
    }
    Map<String, Object> result = new HashMap();
    result.put("msg", "success");
    result.put("rst", 0);
    Integer channel = (Integer) context.getAttribute("use_channel");
    if (channel == null){
        channel = 0;
    }
    result.put("data", channel);
    return new ModelAndView(new MappingJackson2JsonView(), result);
}
 

/**
 * 
 * onServletRegist
 * 
 * @param args
 * @return
 */
public ServletContext onServletRegist(Object... args) {

    ServletContext servletContext = (ServletContext) args[0];
    
    //uav's inner app doesn't need Profiling,just return origin servletContext here. 
    if("/com.creditease.uav".equals(servletContext.getContextPath())) {
        return servletContext;
    }
    
    ServletContext scProxy = (ServletContext) servletContext
            .getAttribute("com.creditease.uav.mof.tomcat.servletcontext");

    if (scProxy == null) {
        scProxy = JDKProxyInvokeUtil.newProxyInstance(ServletContext.class.getClassLoader(),
                new Class<?>[] { ServletContext.class },
                new JDKProxyInvokeHandler<ServletContext>(servletContext, new DynamicServletContextProcessor()));

        servletContext.setAttribute("com.creditease.uav.mof.tomcat.servletcontext", scProxy);
    }

    return scProxy;
}
 

@Override
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
    log.debug("doGet({}, {})", request, response);
    updateSessionManager(request);

    try {
        String genCsrft = SecureStore.md5Encode(UUID.randomUUID().toString().getBytes());
        request.getSession().setAttribute("csrft", genCsrft);
        ServletContext sc = getServletContext();
        sc.setAttribute("script", null);
        sc.setAttribute("csrft", genCsrft);
        sc.setAttribute("scriptResult", null);
        sc.setAttribute("scriptError", null);
        sc.setAttribute("scriptOutput", null);
        sc.setAttribute("time", null);
        sc.getRequestDispatcher("/admin/scripting.jsp").forward(request, response);
    } catch (Exception e) {
        log.error(e.getMessage(), e);
        sendErrorRedirect(request, response, e);
    }
}
 

/**
 * edit type record
 */
private void edit(String userId, HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException,
		DatabaseException, ParseException, AccessDeniedException, RepositoryException {
	log.debug("edit({}, {}, {})", new Object[] { userId, request, response });
	ServletContext sc = getServletContext();
	long omId = WebUtils.getLong(request, "om_id");
	sc.setAttribute("action", WebUtils.getString(request, "action"));
	sc.setAttribute("om", OmrDAO.getInstance().findByPk(omId));
	sc.setAttribute("pgprops", PropertyGroupUtils.getAllGroupsProperties());
	sc.getRequestDispatcher("/admin/omr_edit.jsp").forward(request, response);
	log.debug("edit: void");
}
 

@Test
public void testDelegatingFilterProxyNotInjectedWithRootPreferred() throws ServletException, IOException {
	ServletContext sc = new MockServletContext();
	StaticWebApplicationContext wac = new StaticWebApplicationContext();
	wac.setServletContext(sc);
	wac.refresh();
	sc.setAttribute("org.springframework.web.servlet.FrameworkServlet.CONTEXT.dispatcher", wac);
	sc.setAttribute("another", wac);

	StaticWebApplicationContext wacToUse = new StaticWebApplicationContext();
	wacToUse.setServletContext(sc);
	String beanName = "targetFilter";
	wacToUse.registerSingleton(beanName, MockFilter.class);
	wacToUse.refresh();
	sc.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, wacToUse);

	MockFilter targetFilter = (MockFilter) wacToUse.getBean(beanName);

	DelegatingFilterProxy filterProxy = new DelegatingFilterProxy(beanName);
	filterProxy.setServletContext(sc);

	MockHttpServletRequest request = new MockHttpServletRequest();
	MockHttpServletResponse response = new MockHttpServletResponse();
	filterProxy.doFilter(request, response, null);

	assertNull(targetFilter.filterConfig);
	assertEquals(Boolean.TRUE, request.getAttribute("called"));

	filterProxy.destroy();
	assertNull(targetFilter.filterConfig);
}
 

/**
 * Plugin list
 */
@SuppressWarnings("unchecked")
private void pluginList(HttpServletRequest request, HttpServletResponse response, String pluginSelected)
		throws ServletException, IOException, DatabaseException, URISyntaxException {
	log.debug("pluginList({})", pluginSelected);
	ServletContext sc = getServletContext();
	List<Plugin> pluginsLoaded;
	List<Plugin> plugins;

	if (null == pluginSelected || pluginSelected.isEmpty()) {
		pluginSelected = Action.class.getCanonicalName();
	}

	if (Validation.class.getCanonicalName().equalsIgnoreCase(pluginSelected)) {
		plugins = (List<Plugin>) (List<?>) PluginUtils.getAllPlugins(new URI(AutomationDAO.PLUGIN_URI),
				Validation.class);
		pluginsLoaded = (List<Plugin>) (List<?>) AutomationDAO.getInstance().findValidations(false);
		Collections.sort(plugins, OrderByClassName.getInstance());		
	} else {
		plugins = (List<Plugin>) (List<?>) PluginUtils.getAllPlugins(new URI(AutomationDAO.PLUGIN_URI),
				Action.class);
		pluginsLoaded = (List<Plugin>) (List<?>) AutomationDAO.getInstance().findActions(false);
		Collections.sort(plugins, OrderByClassName.getInstance());
	}

	List<LoadedPlugin> loadedPlugins = calculateLoadedPlugins(plugins, pluginsLoaded);
	sc.setAttribute("showReloadButton", showReloadButton(loadedPlugins));
	sc.setAttribute("plugins", loadedPlugins);
	sc.setAttribute("pluginStatus", PluginDAO.getInstance().findAll());
	sc.setAttribute("pluginList", pluginList);
	sc.setAttribute("pluginSelected", pluginSelected);
	sc.getRequestDispatcher("/admin/plugin_list.jsp").forward(request, response);
	log.debug("registeredList: void");
}
 

public void messageList(String userId, HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
	ServletContext sc = getServletContext();
	sc.setAttribute("messages", UINotificationServlet.getAll());
	sc.getRequestDispatcher("/admin/message_list.jsp").forward(request, response);

	// Activity log
	UserActivity.log(userId, "ADMIN_GET_MESSAGES", null, null, null);
}
 

@Test
public void testDelegatingFilterProxyWithLazyContextStartup() throws ServletException, IOException {
	ServletContext sc = new MockServletContext();

	MockFilterConfig proxyConfig = new MockFilterConfig(sc);
	proxyConfig.addInitParameter("targetBeanName", "targetFilter");
	DelegatingFilterProxy filterProxy = new DelegatingFilterProxy();
	filterProxy.init(proxyConfig);

	StaticWebApplicationContext wac = new StaticWebApplicationContext();
	wac.setServletContext(sc);
	wac.registerSingleton("targetFilter", MockFilter.class);
	wac.refresh();
	sc.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, wac);

	MockFilter targetFilter = (MockFilter) wac.getBean("targetFilter");

	MockHttpServletRequest request = new MockHttpServletRequest();
	MockHttpServletResponse response = new MockHttpServletResponse();
	filterProxy.doFilter(request, response, null);

	assertNull(targetFilter.filterConfig);
	assertEquals(Boolean.TRUE, request.getAttribute("called"));

	filterProxy.destroy();
	assertNull(targetFilter.filterConfig);
}
 

/**
 * Create CSS
 */
private void create(String userId, HttpServletRequest request, HttpServletResponse response)
		throws ServletException, IOException, DatabaseException {
	log.debug("create({}, {}, {})", new Object[]{userId, request, response});
	ServletContext sc = getServletContext();

	sc.setAttribute("action", WebUtils.getString(request, "action"));
	sc.setAttribute("persist", true);
	sc.setAttribute("css", null);
	sc.getRequestDispatcher("/admin/css_edit.jsp").forward(request, response);

	log.debug("create: void");
}
 

/**
 *   
 *   开启一个 消费端     
 *      该方法会创建一个 消费端类 ，该类 将添加到servletContext 进行管理    
 *   重要提示 每次调用改方法都会 开启一个新的消费端   
 *   
 * @param Topic   Topic
 * @param Tags	Tag     标签可以 定 未获取多个    具体请看MQ 文档
 * @return  是否成功开启
 */
@RequestMapping(method = RequestMethod.POST)
public ResponseEntity<Void> startMqConsumerTag(@RequestParam("Topic") String Topic,
		@RequestParam("Tags") String Tags)
{
	MqConsumer consumer;
	String clientID;
	try
	{
		consumer = (MqConsumer) SpringContextUtils.getBeanByClass(MqConsumer.class);
		if (Tags == null || "".equals(Tags)) Tags = "*";
		clientID = consumer.init(Topic, Tags);
	}
	catch (Exception e)
	{
		LOGGER.error("MqConsumerController 启动消费端异常  ", e);
		return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).build();
	}

	ServletContext servletContext = request.getServletContext();

	if (servletContext.getAttribute(clientID) == null)
	{
		servletContext.setAttribute(clientID, consumer);
	}
	return ResponseEntity.status(HttpStatus.OK).build();
}
 

@Override
public void onStartup(Runnable startupHook) {
    startupHook.run();
    KeycloakApplication keycloakApplication = Resteasy.getContextData(KeycloakApplication.class);
    ServletContext context = Resteasy.getContextData(ServletContext.class);
    context.setAttribute(KeycloakSessionFactory.class.getName(),  keycloakApplication.getSessionFactory());
}
 

public void init(ServletConfig servletConfig) throws ServletException {
    super.init(servletConfig);
    ServletContext context = servletConfig.getServletContext();
    String controllerClassName = context.getInitParameter("InterfaceS_Service");
    try {
        Class controllerClass = Class.forName(controllerClassName);
        _controller = (InterfaceS_Service) controllerClass.newInstance();
        context.setAttribute("controller", _controller);
    }
    catch (Exception e) {
        e.printStackTrace();
    }
}
 

/**
 * Send email
 */
private void send(HttpServletRequest request, HttpServletResponse response) throws IOException,
		ServletException {
	log.debug("send({}, {})", request, response);
	String from = WebUtils.getString(request, "from");
	String to = WebUtils.getString(request, "to");
	String subject = WebUtils.getString(request, "subject");
	String content = WebUtils.getString(request, "content");
	ServletContext sc = getServletContext();
	sc.setAttribute("from", from);
	sc.setAttribute("to", to);
	sc.setAttribute("subject", subject);
	sc.setAttribute("content", content);

	try {
		MailUtils.sendMessage(from, to, subject, content);
		sc.setAttribute("error", null);
		sc.setAttribute("success", "Ok");
	} catch (Exception e) {
		sc.setAttribute("success", null);
		sc.setAttribute("error", e.getMessage());
	}

	sc.getRequestDispatcher("/admin/check_email.jsp").forward(request, response);

	// Activity log
	UserActivity.log(request.getRemoteUser(), "ADMIN_CHECK_EMAIL", null, null, from + ", " + to + ", " + subject + ", " + content);
	log.debug("view: void");
}
 

public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
	log.debug("doGet({}, {})", request, response);
	request.setCharacterEncoding("UTF-8");
	updateSessionManager(request);

	ServletContext sc = getServletContext();
	sc.setAttribute("repoPath", "/" + Repository.ROOT);
	sc.setAttribute("docUuid", null);
	sc.setAttribute("text", null);
	sc.setAttribute("time", null);
	sc.setAttribute("mimeType", null);
	sc.setAttribute("extractor", null);
	sc.getRequestDispatcher("/admin/check_text_extraction.jsp").forward(request, response);
}
 

@Override
public void contextInitialized(ServletContextEvent sce) {
    ServletContext servletContext = sce.getServletContext();
    servletContext.setAttribute(BOOK_STORAGE_NAME, new BookStorage());
}
 

@Override
public void contextInitialized(ServletContextEvent sce) {
    Stockticker stockticker = new Stockticker();
    ServletContext sc = sce.getServletContext();
    sc.setAttribute(STOCK_TICKER_KEY, stockticker);
}
 

@Override
public void contextInitialized(ServletContextEvent sce) {
    ServletContext servletContext = sce.getServletContext();
    String configResolverClass = servletContext.getInitParameter("keycloak.config.resolver");
    SamlDeploymentContext deploymentContext = (SamlDeploymentContext) servletContext.getAttribute(SamlDeployment.class.getName());

    if (deploymentContext == null) {
        if (configResolverClass != null) {
            try {
                SamlConfigResolver configResolver = (SamlConfigResolver) servletContext.getClassLoader().loadClass(configResolverClass).newInstance();
                deploymentContext = new SamlDeploymentContext(configResolver);
                log.infov("Using {0} to resolve Keycloak configuration on a per-request basis.", configResolverClass);
            } catch (Exception ex) {
                log.errorv("The specified resolver {0} could NOT be loaded. Keycloak is unconfigured and will deny all requests. Reason: {1}", new Object[] { configResolverClass, ex.getMessage() });
                deploymentContext = new SamlDeploymentContext(new DefaultSamlDeployment());
            }
        } else {
            InputStream is = getConfigInputStream(servletContext);
            final SamlDeployment deployment;
            if (is == null) {
                log.warn("No adapter configuration.  Keycloak is unconfigured and will deny all requests.");
                deployment = new DefaultSamlDeployment();
            } else {
                try {
                    ResourceLoader loader = new ResourceLoader() {
                        @Override
                        public InputStream getResourceAsStream(String resource) {
                            return servletContext.getResourceAsStream(resource);
                        }
                    };
                    deployment = new DeploymentBuilder().build(is, loader);
                } catch (ParsingException e) {
                    throw new RuntimeException(e);
                }
            }
            deploymentContext = new SamlDeploymentContext(deployment);
            log.debug("Keycloak is using a per-deployment configuration.");
        }
    }

    addTokenStoreUpdaters(servletContext);

    servletContext.setAttribute(ADAPTER_DEPLOYMENT_CONTEXT_ATTRIBUTE, deploymentContext);
    servletContext.setAttribute(ADAPTER_DEPLOYMENT_CONTEXT_ATTRIBUTE_ELYTRON, deploymentContext);
    servletContext.setAttribute(ADAPTER_SESSION_ID_MAPPER_ATTRIBUTE_ELYTRON, idMapper);
    servletContext.setAttribute(ADAPTER_SESSION_ID_MAPPER_UPDATER_ATTRIBUTE_ELYTRON, idMapperUpdater);
}
 

private void setDefaultConnection(ServletContext application, Properties props) {
    String defaultConnection = (String) props.get(Constants.DEFAULT_CONNECTION);
    application.setAttribute(Constants.DEFAULT_CONNECTION, defaultConnection);
}
 

/**
 * Override the ServletContextListener.contextInitializedReceives method.
 * It is called when the web application initialization process is starting.
 * This function gets the DDBB connection and saves it in a 
 * Servlet context attribute.
 *
 * @param the ServletContextEvent containing the ServletContext  
 *                  that is being initialized.
 * @since 2.0
 */
@Override
public void contextInitialized(final ServletContextEvent event) {
	LOGGER.info(MessageCatalog._00001_STARTING);
	final ServletContext servletC = event.getServletContext();
	//Get DDBB connection
	final DBConnectionManager dbConn = new DBConnectionManager();
	//Save DDBB connection in Servlet Context attribute
	servletC.setAttribute("db", dbConn);
}
 

/**
 * Override the ServletContextListener.contextInitializedReceives method.
 * It is called when the web application initialization process is starting.
 * This function gets the DDBB connection and saves it in a 
 * Servlet context attribute.
 *
 * @param the ServletContextEvent containing the ServletContext  
 *                  that is being initialized.
 * @since 1.0
 */
@Override
public void contextInitialized(final ServletContextEvent event) {
	LOGGER.info(MessageCatalog._00001_STARTING);
	final ServletContext servletC = event.getServletContext();
	//Get DDBB connection
	final DBConnectionManager dbConn = new DBConnectionManager();
	//Save DDBB connection in Servlet Context attribute
	servletC.setAttribute("db", dbConn);
}