Example usage for javax.servlet ServletContext getAttribute

List of usage examples for javax.servlet ServletContext getAttribute

  1. HOME
  2. Java
  3. javax
  4. javax.servlet.*
  5. ServletContext
  6. getAttribute

Introduction

In this page you can find the example usage for javax.servlet ServletContext getAttribute.

Prototype

public Object getAttribute(String name);

Source Link

Document

Returns the servlet container attribute with the given name, or null if there is no attribute by that name.

Usage

From source file:com.onehippo.gogreen.login.HstConcurrentLoginFilter.java

@SuppressWarnings("unchecked")
public void init(FilterConfig filterConfig) throws ServletException {
    ServletContext servletContext = filterConfig.getServletContext();
    usernameHttpSessionWrapperMap = (Map<String, HttpSessionWrapper>) servletContext
            .getAttribute(USERNAME_SESSIONID_MAP_ATTR);

    if (usernameHttpSessionWrapperMap == null) {
        usernameHttpSessionWrapperMap = Collections.synchronizedMap(new HashMap<String, HttpSessionWrapper>());
        servletContext.setAttribute(USERNAME_SESSIONID_MAP_ATTR, usernameHttpSessionWrapperMap);
    }/*from   w  ww  .jav  a  2 s  .co m*/

    String[] disallowConcurrentLoginUsernamesArray = StringUtils
            .split(filterConfig.getInitParameter("disallowConcurrentLoginUsernames"), " ,\t\r\n");

    if (disallowConcurrentLoginUsernamesArray != null && disallowConcurrentLoginUsernamesArray.length > 0) {
        disallowConcurrentLoginUsernames = new HashSet<String>(
                Arrays.asList(disallowConcurrentLoginUsernamesArray));
    }

    log.info(
            "HstConcurrentLoginFilter's disallowConcurrentLoginUsernames: " + disallowConcurrentLoginUsernames);

    String[] allowConcurrentLoginUsernamesArray = StringUtils
            .split(filterConfig.getInitParameter("allowConcurrentLoginUsernames"), " ,\t\r\n");

    if (allowConcurrentLoginUsernamesArray != null && allowConcurrentLoginUsernamesArray.length > 0) {
        allowConcurrentLoginUsernames = new HashSet<String>(Arrays.asList(allowConcurrentLoginUsernamesArray));
    }

    earlySessionInvalidation = BooleanUtils
            .toBoolean(filterConfig.getInitParameter("earlySessionInvalidation"));

    log.info("HstConcurrentLoginFilter's allowConcurrentLoginUsernames: " + allowConcurrentLoginUsernames);
}

From source file:ejportal.webapp.listener.StartupListener.java

/**
 * {@inheritDoc}//  ww w . ja v a  2  s. c  o  m
 */
@SuppressWarnings("unchecked")
public void contextInitialized(final ServletContextEvent event) {
    StartupListener.log.debug("Initializing context...");

    final ServletContext context = event.getServletContext();

    // Orion starts Servlets before Listeners, so check if the config
    // object already exists
    Map<String, Object> config = (HashMap<String, Object>) context.getAttribute(Constants.CONFIG);

    if (config == null) {
        config = new HashMap<String, Object>();
    }

    if (context.getInitParameter(Constants.CSS_THEME) != null) {
        config.put(Constants.CSS_THEME, context.getInitParameter(Constants.CSS_THEME));
    }

    final ApplicationContext ctx = WebApplicationContextUtils.getRequiredWebApplicationContext(context);

    /*
     * String[] beans = ctx.getBeanDefinitionNames(); for (String bean :
     * beans) { log.debug(bean); }
     */

    PasswordEncoder passwordEncoder = null;
    try {
        final ProviderManager provider = (ProviderManager) ctx.getBean("_authenticationManager");
        for (final Object o : provider.getProviders()) {
            final AuthenticationProvider p = (AuthenticationProvider) o;
            if (p instanceof RememberMeAuthenticationProvider) {
                config.put("rememberMeEnabled", Boolean.TRUE);
            } else if (ctx.getBean("passwordEncoder") != null) {
                passwordEncoder = (PasswordEncoder) ctx.getBean("passwordEncoder");
            }
        }
    } catch (final NoSuchBeanDefinitionException n) {
        StartupListener.log.debug("authenticationManager bean not found, assuming test and ignoring...");
        // ignore, should only happen when testing
    }

    context.setAttribute(Constants.CONFIG, config);

    // output the retrieved values for the Init and Context Parameters
    if (StartupListener.log.isDebugEnabled()) {
        StartupListener.log.debug("Remember Me Enabled? " + config.get("rememberMeEnabled"));
        if (passwordEncoder != null) {
            StartupListener.log.debug("Password Encoder: " + passwordEncoder.getClass().getSimpleName());
        }
        StartupListener.log.debug("Populating drop-downs...");
    }

    StartupListener.setupContext(context);
}

From source file:com.google.ratel.util.RatelUtils.java

/**
 * Return the application configuration service instance from the given servlet context.
 *
 * @param servletContext the servlet context to get the config service instance
 * @return the application config service instance
 *///from   ww w .j  av  a 2 s.  c o m
public static RatelConfig getRatelConfig(ServletContext servletContext) {
    RatelConfig ratelConfig = (RatelConfig) servletContext.getAttribute(RatelConfig.CONTEXT_NAME);
    return ratelConfig;
}

From source file:org.iterx.miru.support.servlet.HttpDispatcherServlet.java

public void init(ServletConfig servletConfig) throws ServletException {

    try {/* w  ww .  ja v  a  2  s. co  m*/
        DispatcherApplicationContext applicationContext;
        ApplicationContext parentApplicationContext;
        HandlerChainFactory handlerChainFactory;
        ServletContext servletContext;
        String parameter;

        servletContext = servletConfig.getServletContext();

        parentApplicationContext = (ApplicationContext) servletContext
                .getAttribute((DispatcherApplicationContext.class).getName());
        applicationContext = ((parentApplicationContext != null)
                ? new ServletDispatcherApplicationContext(parentApplicationContext, servletContext)
                : new ServletDispatcherApplicationContext(servletContext));

        if ((parameter = servletConfig.getInitParameter(ServletDispatcherApplicationContext.BEANS)) != null
                && applicationContext instanceof Loadable) {
            URL url;

            if ((url = (servletContext.getResource(parameter))) != null)
                ((Loadable) applicationContext).load(new UriStreamResource(url.toURI()));
            else
                throw new IOException("Invalid stream [" + parameter + "]");
        }

        handlerChainFactory = applicationContext.getHandlerChainFactory();
        if ((parameter = servletConfig.getInitParameter(ServletDispatcherApplicationContext.CHAINS)) != null
                && handlerChainFactory instanceof Loadable) {
            URL url;

            if ((url = (servletContext.getResource(parameter))) != null)
                ((Loadable) handlerChainFactory).load(new UriStreamResource(url.toURI()));
            else
                throw new IOException("Invalid stream [" + parameter + "]");
        }

        if (dispatcher == null
                && (dispatcher = (Dispatcher<HttpServletRequestContext, HttpServletResponseContext>) applicationContext
                        .getBeanOfType(Dispatcher.class)) == null)
            dispatcher = new Dispatcher<HttpServletRequestContext, HttpServletResponseContext>();

        dispatcher.setHandlerChainMap(handlerChainFactory.getHandlerChains());
        processingContextFactory = applicationContext.getProcessingContextFactory();
    } catch (Exception e) {
        LOGGER.error("Initialisation failed.", e);
        throw new ServletException("Initialisation failed.", e);
    }
}

From source file:alpha.portal.webapp.listener.StartupListener.java

/**
 * {@inheritDoc}/*w  w  w. j a va  2 s.  c  o  m*/
 */
@SuppressWarnings("unchecked")
public void contextInitialized(final ServletContextEvent event) {
    StartupListener.log.debug("Initializing context...");

    final ServletContext context = event.getServletContext();

    // Orion starts Servlets before Listeners, so check if the config
    // object already exists
    Map<String, Object> config = (HashMap<String, Object>) context.getAttribute(Constants.CONFIG);

    if (config == null) {
        config = new HashMap<String, Object>();
    }

    if (context.getInitParameter(Constants.CSS_THEME) != null) {
        config.put(Constants.CSS_THEME, context.getInitParameter(Constants.CSS_THEME));
    }

    final ApplicationContext ctx = WebApplicationContextUtils.getRequiredWebApplicationContext(context);

    /*
     * String[] beans = ctx.getBeanDefinitionNames(); for (String bean :
     * beans) { log.debug(bean); }
     */

    PasswordEncoder passwordEncoder = null;
    try {
        final ProviderManager provider = (ProviderManager) ctx
                .getBean("org.springframework.security.authentication.ProviderManager#0");
        for (final Object o : provider.getProviders()) {
            final AuthenticationProvider p = (AuthenticationProvider) o;
            if (p instanceof RememberMeAuthenticationProvider) {
                config.put("rememberMeEnabled", Boolean.TRUE);
            } else if (ctx.getBean("passwordEncoder") != null) {
                passwordEncoder = (PasswordEncoder) ctx.getBean("passwordEncoder");
            }
        }
    } catch (final NoSuchBeanDefinitionException n) {
        StartupListener.log.debug("authenticationManager bean not found, assuming test and ignoring...");
        // ignore, should only happen when testing
    }

    context.setAttribute(Constants.CONFIG, config);

    // output the retrieved values for the Init and Context Parameters
    if (StartupListener.log.isDebugEnabled()) {
        StartupListener.log.debug("Remember Me Enabled? " + config.get("rememberMeEnabled"));
        if (passwordEncoder != null) {
            StartupListener.log.debug("Password Encoder: " + passwordEncoder.getClass().getSimpleName());
        }
        StartupListener.log.debug("Populating drop-downs...");
    }

    StartupListener.setupContext(context);
}

From source file:com.concursive.connect.indexer.jobs.IndexerJob.java

public void execute(JobExecutionContext context) throws JobExecutionException {
    SchedulerContext schedulerContext = null;
    try {//from www  .j av a 2s.c o  m
        schedulerContext = context.getScheduler().getContext();
        // Determine the indexer service
        IIndexerService indexer = IndexerFactory.getInstance().getIndexerService();
        if (indexer == null) {
            throw (new JobExecutionException("Indexer Configuration error: No indexer defined."));
        }
        // Determine if the indexer job can run
        boolean canExecute = true;
        ServletContext servletContext = (ServletContext) schedulerContext.get("ServletContext");
        if (servletContext != null) {
            // If used in a servlet environment, make sure the indexer is initialized
            canExecute = "true".equals(servletContext.getAttribute(Constants.DIRECTORY_INDEX_INITIALIZED));
        }
        // Execute the indexer
        if (canExecute) {
            Vector eventList = (Vector) schedulerContext.get(INDEX_ARRAY);
            if (eventList.size() > 0) {
                LOG.debug("Indexing data... " + eventList.size());
                indexer.obtainWriterLock();
                try {
                    while (eventList.size() > 0) {
                        IndexEvent indexEvent = (IndexEvent) eventList.get(0);
                        if (indexEvent.getAction() == IndexEvent.ADD) {
                            // The object was either added or updated
                            indexer.indexAddItem(indexEvent.getItem());
                        } else if (indexEvent.getAction() == IndexEvent.DELETE) {
                            // Delete the item and related data
                            indexer.indexDeleteItem(indexEvent.getItem());
                        }
                        eventList.remove(0);
                    }
                } catch (Exception e) {
                    LOG.error("Indexing error", e);
                    throw new JobExecutionException(e.getMessage());
                } finally {
                    indexer.releaseWriterLock();
                }
            }
        }
    } catch (Exception e) {
        LOG.error("Indexing job error", e);
        throw new JobExecutionException(e.getMessage());
    }
}

From source file:org.apache.hadoop.hbase.http.HttpServer.java

/**
 * Get the admin ACLs from the given ServletContext and check if the given
 * user is in the ACL./*from   ww w  . j  a v a 2  s. c  om*/
 *
 * @param servletContext the context containing the admin ACL.
 * @param remoteUser the remote user to check for.
 * @return true if the user is present in the ACL, false if no ACL is set or
 *         the user is not present
 */
public static boolean userHasAdministratorAccess(ServletContext servletContext, String remoteUser) {
    AccessControlList adminsAcl = (AccessControlList) servletContext.getAttribute(ADMINS_ACL);
    UserGroupInformation remoteUserUGI = UserGroupInformation.createRemoteUser(remoteUser);
    return adminsAcl != null && adminsAcl.isUserAllowed(remoteUserUGI);
}

From source file:org.apache.pluto.driver.PortalStartupListener.java

/**
 * Initializes the portlet container. This method constructs and initializes
 * the portlet container, and saves it to the servlet context scope.
 *
 * @param servletContext the servlet context.
 *///from  w  w  w  .j a  v  a 2s.  c o  m
private void initContainer(ServletContext servletContext) {

    WebApplicationContext springContext = (WebApplicationContext) servletContext
            .getAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);

    // Retrieve the driver configuration from servlet context.
    DriverConfiguration driverConfig = (DriverConfiguration) servletContext.getAttribute(DRIVER_CONFIG_KEY);

    try {
        LOG.info("Initializing Portlet Container. . .");

        LOG.debug(" [1] Loading RequiredContainerServices. . .");
        RequiredContainerServices required = (RequiredContainerServices) springContext
                .getBean("RequiredContainerServices");

        LOG.debug(" [2] Loading OptionalContainerServices. . .");
        OptionalContainerServices optional = (OptionalContainerServices) springContext
                .getBean("OptionalContainerServices");

        // Create portlet container.
        LOG.debug(" [3] Creating portlet container...");
        PortletContainerFactory factory = PortletContainerFactory.getInstance();
        PortletContainer container = factory.createContainer(driverConfig.getContainerName(), required,
                optional);

        // Initialize portlet container.
        LOG.debug(" [4] Initializing portlet container...");
        container.init();

        // Save portlet container to the servlet context scope.
        servletContext.setAttribute(CONTAINER_KEY, container);
        LOG.info("Pluto portlet container started.");

    } catch (DriverConfigurationException ex) {
        LOG.error("Unable to retrieve driver configuration " + "due to configuration error: " + ex.getMessage(),
                ex);
    } catch (PortletContainerException ex) {
        LOG.error("Unable to start up portlet container: " + ex.getMessage(), ex);
    }
}

From source file:com.athena.sqs.MessageReceiveListener.java

public void contextInitialized(ServletContextEvent sce) {
    ServletContext servletContext = sce.getServletContext();
    listenQueueName = servletContext.getInitParameter("listenQueueName");
    if (listenQueueName == null) {
        listenQueueName = "your_listen_queue_name";
    }//from w w w  .  j a va  2s.c  o m

    ApplicationContext applicationContext = (ApplicationContext) servletContext
            .getAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
    receiver = applicationContext.getBean(MessageReceiver.class);

    // If you want to run multiple receivers, create tasks or change doReceive method to async.
    /*
     * List<BizQueue> list = dao.getBizQueueList();
     * for(BizQueue queue : list) {
     *     BizQueueTask task = new BiaQueueTask(sqsContext, queue);
     *     task.run(); // thread start.
     * }
     */
    try {
        logger.debug("***********************************************");
        logger.debug("SQS Message Receiver is starting");
        logger.debug("***********************************************");

        // Queue names are loaded from sqsContext.xml

        List<String> queueList = (List<String>) applicationContext.getBean("initialQueueList");

        for (String queueName : queueList) {
            receiver.doReceive(queueName);
            Thread.sleep(2000);
        }

        // Default listen queue start
        receiver.doReceive(listenQueueName);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:edu.uci.ics.asterix.api.http.servlet.RESTAPIServlet.java

public void handleRequest(HttpServletRequest request, HttpServletResponse response, String query)
        throws IOException {
    SessionConfig sessionConfig = initResponse(request, response);
    AqlTranslator.ResultDelivery resultDelivery = whichResultDelivery(request);

    ServletContext context = getServletContext();
    IHyracksClientConnection hcc;// ww w .j  a va  2 s.  com
    IHyracksDataset hds;

    try {
        synchronized (context) {
            hcc = (IHyracksClientConnection) context.getAttribute(HYRACKS_CONNECTION_ATTR);
            hds = (IHyracksDataset) context.getAttribute(HYRACKS_DATASET_ATTR);
            if (hds == null) {
                hds = new HyracksDataset(hcc, ResultReader.FRAME_SIZE, ResultReader.NUM_READERS);
                context.setAttribute(HYRACKS_DATASET_ATTR, hds);
            }
        }

        AQLParser parser = new AQLParser(query);
        List<Statement> aqlStatements = parser.parse();
        if (!containsForbiddenStatements(aqlStatements)) {
            MetadataManager.INSTANCE.init();
            AqlTranslator aqlTranslator = new AqlTranslator(aqlStatements, sessionConfig);
            aqlTranslator.compileAndExecute(hcc, hds, resultDelivery);
        }
    } catch (ParseException | TokenMgrError | edu.uci.ics.asterix.aqlplus.parser.TokenMgrError pe) {
        GlobalConfig.ASTERIX_LOGGER.log(Level.SEVERE, pe.getMessage(), pe);
        String errorMessage = ResultUtils.buildParseExceptionMessage(pe, query);
        JSONObject errorResp = ResultUtils.getErrorResponse(2, errorMessage, "", "");
        sessionConfig.out().write(errorResp.toString());
        response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
    } catch (Exception e) {
        GlobalConfig.ASTERIX_LOGGER.log(Level.SEVERE, e.getMessage(), e);
        ResultUtils.apiErrorHandler(sessionConfig.out(), e);
        response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
    }
}