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

The following examples show how to use javax.servlet.ServletContext#removeAttribute() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: ContextLoader.java From java-technology-stack with MIT License

6 votes

/**
 * Close Spring's web application context for the given servlet context.
 * <p>If overriding {@link #loadParentContext(ServletContext)}, you may have
 * to override this method as well.
 * @param servletContext the ServletContext that the WebApplicationContext runs in
 */
public void closeWebApplicationContext(ServletContext servletContext) {
	servletContext.log("Closing Spring root WebApplicationContext");
	try {
		if (this.context instanceof ConfigurableWebApplicationContext) {
			((ConfigurableWebApplicationContext) this.context).close();
		}
	}
	finally {
		ClassLoader ccl = Thread.currentThread().getContextClassLoader();
		if (ccl == ContextLoader.class.getClassLoader()) {
			currentContext = null;
		}
		else if (ccl != null) {
			currentContextPerThread.remove(ccl);
		}
		servletContext.removeAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
	}
}

Example 2

Source File: EurekaStore.java From qconfig with MIT License

6 votes

/**
 * Handles Eureka cleanup, including shutting down all monitors and yielding all EIPs.
 *
 * @see javax.servlet.ServletContextListener#contextDestroyed(javax.servlet.ServletContextEvent)
 */
@PreDestroy
public void destroy() {
    try {
        logger.info("{} Shutting down Eureka Server..", new Date().toString());
        ServletContext sc = context.getServletContext();
        sc.removeAttribute(EurekaServerContext.class.getName());

        DiscoveryManager.getInstance().shutdownComponent();
        destroyEurekaServerContext();
        destroyEurekaEnvironment();

    } catch (Throwable e) {
        logger.error("Error shutting down eureka", e);
    }
    logger.info("{} Eureka Service is now shutdown...", new Date().toString());
}

Example 3

Source File: PortalStartupListener.java From portals-pluto with Apache License 2.0

6 votes

/**
 * Destroyes the portal admin config and removes it from servlet context.
 *
 * @param servletContext the servlet context.
 */
private void destroyAdminConfiguration(ServletContext servletContext)
{
    AdminConfiguration adminConfig = (AdminConfiguration)
            servletContext.getAttribute(ADMIN_CONFIG_KEY);
    if (adminConfig != null)
    {
        try
        {
            adminConfig.destroy();
            if (LOG.isInfoEnabled())
            {
                LOG.info("Pluto Portal Admin Config destroyed.");
            }
        } catch (DriverConfigurationException ex)
        {
            LOG.error("Unable to destroy portal admin config: "
                    + ex.getMessage(), ex);
        } finally
        {
            servletContext.removeAttribute(ADMIN_CONFIG_KEY);
        }
    }
}

Example 4

Source File: ContextLoader.java From lams with GNU General Public License v2.0

6 votes

/**
 * Close Spring's web application context for the given servlet context. If
 * the default {@link #loadParentContext(ServletContext)} implementation,
 * which uses ContextSingletonBeanFactoryLocator, has loaded any shared
 * parent context, release one reference to that shared parent context.
 * <p>If overriding {@link #loadParentContext(ServletContext)}, you may have
 * to override this method as well.
 * @param servletContext the ServletContext that the WebApplicationContext runs in
 */
public void closeWebApplicationContext(ServletContext servletContext) {
	servletContext.log("Closing Spring root WebApplicationContext");
	try {
		if (this.context instanceof ConfigurableWebApplicationContext) {
			((ConfigurableWebApplicationContext) this.context).close();
		}
	}
	finally {
		ClassLoader ccl = Thread.currentThread().getContextClassLoader();
		if (ccl == ContextLoader.class.getClassLoader()) {
			currentContext = null;
		}
		else if (ccl != null) {
			currentContextPerThread.remove(ccl);
		}
		servletContext.removeAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
		if (this.parentContextRef != null) {
			this.parentContextRef.release();
		}
	}
}

Example 5

Source File: UserServlet.java From mytwitter with Apache License 2.0

6 votes

private void toExit(HttpServletRequest request, HttpServletResponse response) throws IOException {
	HttpSession session = request.getSession();
	if (session.getAttribute("admin") == null) {
		session.invalidate();
		response.sendRedirect("index.jsp");
		return;
	}
	Users user = (Users) session.getAttribute("user");
	ServletContext application = session.getServletContext();
	application.removeAttribute(((Users) session.getAttribute("user")).getUname());
	Integer onlineNum = (Integer) application.getAttribute("onlineNum");
	if (onlineNum > 0) {
		application.setAttribute("onlineNum", onlineNum - 1);
	}
	Object signinid = session.getAttribute("signinid");
	int uid = user.getUid();
	Timestamp sdtime = Times.getSystemTime();
	usersDao.updateOnline(0, uid);
	signinDao.updateSignin((Integer) signinid, sdtime);
	response.sendRedirect("index.jsp");
}

Example 6

Source File: ContextPathListener.java From zxl with Apache License 2.0

5 votes

@Override
public void contextDestroyed(ServletContextEvent event) {
	ServletContext servletContext = event.getServletContext();
	if (servletContext.getAttribute(CONTEXT_PATH_ATTRIBUTE_NAME) != null) {
		servletContext.removeAttribute(CONTEXT_PATH_ATTRIBUTE_NAME);
	}
}

Example 7

Source File: WebappLoader.java From Tomcat8-Source-Read with MIT License

5 votes

/**
 * Stop associated {@link ClassLoader} and implement the requirements
 * of {@link org.apache.catalina.util.LifecycleBase#stopInternal()}.
 *
 * @exception LifecycleException if this component detects a fatal error
 *  that prevents this component from being used
 */
@Override
protected void stopInternal() throws LifecycleException {

    if (log.isDebugEnabled())
        log.debug(sm.getString("webappLoader.stopping"));

    setState(LifecycleState.STOPPING);

    // Remove context attributes as appropriate
    ServletContext servletContext = context.getServletContext();
    servletContext.removeAttribute(Globals.CLASS_PATH_ATTR);

    // Throw away our current class loader if any
    if (classLoader != null) {
        try {
            classLoader.stop();
        } finally {
            classLoader.destroy();
        }

        // classLoader must be non-null to have been registered
        try {
            String contextName = context.getName();
            if (!contextName.startsWith("/")) {
                contextName = "/" + contextName;
            }
            ObjectName cloname = new ObjectName(context.getDomain() + ":type=" +
                    classLoader.getClass().getSimpleName() + ",host=" +
                    context.getParent().getName() + ",context=" + contextName);
            Registry.getRegistry(null, null).unregisterComponent(cloname);
        } catch (Exception e) {
            log.warn("LifecycleException ", e);
        }
    }


    classLoader = null;
}

Example 8

Source File: PortalStartupListener.java From portals-pluto with Apache License 2.0

5 votes

/**
 * Destroyes the portal driver config and removes it from servlet context.
 *
 * @param servletContext the servlet context.
 */
private void destroyDriverConfiguration(ServletContext servletContext)
{
    DriverConfiguration driverConfig = (DriverConfiguration)
            servletContext.getAttribute(DRIVER_CONFIG_KEY);
    if (driverConfig != null)
    {
        servletContext.removeAttribute(DRIVER_CONFIG_KEY);
    }
}

Example 9

Source File: WebappLoader.java From tomcatsrc with Apache License 2.0

5 votes

/**
 * Stop associated {@link ClassLoader} and implement the requirements
 * of {@link org.apache.catalina.util.LifecycleBase#stopInternal()}.
 *
 * @exception LifecycleException if this component detects a fatal error
 *  that prevents this component from being used
 */
@Override
protected void stopInternal() throws LifecycleException {

    if (log.isDebugEnabled())
        log.debug(sm.getString("webappLoader.stopping"));

    setState(LifecycleState.STOPPING);

    // Remove context attributes as appropriate
    if (container instanceof Context) {
        ServletContext servletContext =
            ((Context) container).getServletContext();
        servletContext.removeAttribute(Globals.CLASS_PATH_ATTR);
    }

    // Throw away our current class loader
    if (classLoader != null) {
        ((Lifecycle) classLoader).stop();
        DirContextURLStreamHandler.unbind(classLoader);
    }

    try {
        StandardContext ctx=(StandardContext)container;
        String contextName = ctx.getName();
        if (!contextName.startsWith("/")) {
            contextName = "/" + contextName;
        }
        ObjectName cloname = new ObjectName
            (MBeanUtils.getDomain(ctx) + ":type=WebappClassLoader,context="
             + contextName + ",host=" + ctx.getParent().getName());
        Registry.getRegistry(null, null).unregisterComponent(cloname);
    } catch (Exception e) {
        log.error("LifecycleException ", e);
    }

    classLoader = null;
}

Example 10

Source File: MyServlet.java From journaldev with MIT License

5 votes

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		ServletContext ctx = request.getServletContext();
		ctx.setAttribute("User", "Pankaj");
		String user = (String) ctx.getAttribute("User");
		ctx.removeAttribute("User");
		
		HttpSession session = request.getSession();
		session.invalidate();
		
		PrintWriter out = response.getWriter();
		out.write("Hi "+user);
}

Example 11

Source File: PasswordResetServlet.java From document-management-system with GNU General Public License v2.0

5 votes

@Override
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
	ServletContext sc = getServletContext();
	sc.removeAttribute("forgot");
	sc.removeAttribute("failed");
	response.sendRedirect("login.jsp");
}

Example 12

Source File: TestServletContainerInitializer.java From seed with Mozilla Public License 2.0

5 votes

@Override
public void contextDestroyed(ServletContextEvent sce) {
    ServletContext servletContext = sce.getServletContext();
    servletContext.removeAttribute(INJECTOR_ATTRIBUTE_NAME);
    servletContext.removeAttribute(KERNEL_ATTRIBUTE_NAME);
    if (kernel != null) {
        try {
            Seed.disposeKernel(kernel);
        } finally {
            kernel = null;
        }
    }
}

Example 13

Source File: ContextListener.java From jerseyoauth2 with MIT License

5 votes

@Override
public void contextDestroyed(ServletContextEvent servletContextEvent)
{
	ServletContext sc = servletContextEvent.getServletContext();
	sc.removeAttribute(Injector.class.getName());
	super.contextDestroyed(servletContextEvent);
}

Example 14

Source File: EverrestInitializedListener.java From everrest with Eclipse Public License 2.0

5 votes

@Override
public void contextDestroyed(ServletContextEvent sce) {
    makeFileCollectorDestroyer().stopFileCollector();
    ServletContext servletContext = sce.getServletContext();
    EverrestProcessor processor = (EverrestProcessor)servletContext.getAttribute(EverrestProcessor.class.getName());
    if (processor != null) {
        processor.stop();
    }
    servletContext.removeAttribute(EverrestProcessor.class.getName());
    servletContext.removeAttribute(EverrestConfiguration.class.getName());
    servletContext.removeAttribute(Application.class.getName());
    servletContext.removeAttribute(DependencySupplier.class.getName());
    servletContext.removeAttribute(ResourceBinder.class.getName());
    servletContext.removeAttribute(ApplicationProviderBinder.class.getName());
}

Example 15

Source File: MySessionListener.java From mytwitter with Apache License 2.0

5 votes

@Override
public void sessionDestroyed(HttpSessionEvent event) {
	HttpSession session = event.getSession();
	Users user = (Users) session.getAttribute("user");
	if (user == null) {
		return;
	}
	ServletContext servletContext = event.getSession().getServletContext();
	servletContext.removeAttribute(((Users) session.getAttribute("user")).getUname());
	Integer onlineNum = (Integer) servletContext.getAttribute("onlineNum");
	if (onlineNum > 0) {
		servletContext.setAttribute("onlineNum", onlineNum - 1);
	}
	Object signinid = session.getAttribute("signinid");

	if (user == null || signinid == null) {
		return;
	}
	int uid = user.getUid();
	Timestamp sdtime = Times.getSystemTime();
	usersDao.updateOnline(0, uid);
	signinDao.updateSignin((Integer) signinid, sdtime);

	Object adid = session.getAttribute("adid");
	Admins admin = (Admins) session.getAttribute("admin");
	if (admin == null || adid == null) {
		return;
	}

	int aid = admin.getAid();
	adminsDao.updateOnline(0, aid);
	adloginDao.updateSignin((Integer) adid, sdtime);
}

Example 16

Source File: WebappLoader.java From Tomcat7.0.67 with Apache License 2.0

5 votes

/**
 * Stop associated {@link ClassLoader} and implement the requirements
 * of {@link org.apache.catalina.util.LifecycleBase#stopInternal()}.
 *
 * @exception LifecycleException if this component detects a fatal error
 *  that prevents this component from being used
 */
@Override
protected void stopInternal() throws LifecycleException {

    if (log.isDebugEnabled())
        log.debug(sm.getString("webappLoader.stopping"));

    setState(LifecycleState.STOPPING);

    // Remove context attributes as appropriate
    if (container instanceof Context) {
        ServletContext servletContext =
            ((Context) container).getServletContext();
        servletContext.removeAttribute(Globals.CLASS_PATH_ATTR);
    }

    // Throw away our current class loader
    if (classLoader != null) {
        ((Lifecycle) classLoader).stop();
        DirContextURLStreamHandler.unbind(classLoader);
    }

    try {
        StandardContext ctx=(StandardContext)container;
        String contextName = ctx.getName();
        if (!contextName.startsWith("/")) {
            contextName = "/" + contextName;
        }
        ObjectName cloname = new ObjectName
            (MBeanUtils.getDomain(ctx) + ":type=WebappClassLoader,context="
             + contextName + ",host=" + ctx.getParent().getName());
        Registry.getRegistry(null, null).unregisterComponent(cloname);
    } catch (Exception e) {
        log.error("LifecycleException ", e);
    }

    classLoader = null;
}

Example 17

Source File: BootstrapContextListener.java From ldp4j with Apache License 2.0

5 votes

private static void disposeApplicationContext(ServletContext servletContext, ApplicationContext applicationContext) {
	if(applicationContext==null) {
		return;
	}
	servletContext.removeAttribute(ServerFrontend.LDP4J_APPLICATION_CONTEXT);
	try {
		ApplicationEngine.engine().dispose(applicationContext);
		LOGGER.info("LDP4j Application '{}' ({}) shutdown.",applicationContext.applicationName(),applicationContext.applicationClassName());
	} catch (ApplicationContextTerminationException e) {
		LOGGER.error(String.format("Could not shutdown LDP4j Application '%s' (%s) due to an unexpected context failure. Full stacktrace follows:",applicationContext.applicationName(),applicationContext.applicationClassName()),e);
	}
}

Example 18

Source File: EurekaServerBootstrap.java From spring-cloud-netflix with Apache License 2.0

5 votes

public void contextDestroyed(ServletContext context) {
	try {
		log.info("Shutting down Eureka Server..");
		context.removeAttribute(EurekaServerContext.class.getName());

		destroyEurekaServerContext();
		destroyEurekaEnvironment();

	}
	catch (Throwable e) {
		log.error("Error shutting down eureka", e);
	}
	log.info("Eureka Service is now shutdown...");
}

Example 19

Source File: BaseGuiceServletContextListener.java From jerseyoauth2 with MIT License

4 votes

@Override
public void contextDestroyed(ServletContextEvent servletContextEvent) {
	ServletContext sc = servletContextEvent.getServletContext();
	sc.removeAttribute(Injector.class.getName());
	super.contextDestroyed(servletContextEvent);
}

Example 20

Source File: DaggerServletContextListener.java From dagger-servlet with Apache License 2.0

4 votes

@Override
public void contextDestroyed(ServletContextEvent servletContextEvent) {
    ServletContext servletContext = servletContextEvent.getServletContext();
    servletContext.removeAttribute(OBJECT_GRAPH_NAME);
}