Example usage for javax.servlet ServletContext 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:org.apache.hadoop.hdfs.server.namenode.NameNodeHttpServer.java

public static NameNode getNameNodeFromContext(ServletContext context) {
    return (NameNode) context.getAttribute(NAMENODE_ATTRIBUTE_KEY);
}

From source file:org.impalaframework.web.helper.WebServletUtils.java

public static ModuleManagementFacade getModuleManagementFacade(ServletContext servletContext) {

    Assert.notNull(servletContext);//from  w w w.j  a v a2s.co m
    final String attributeName = WebConstants.IMPALA_FACTORY_ATTRIBUTE;
    final Object attribute = servletContext.getAttribute(attributeName);

    if (logger.isDebugEnabled()) {
        logger.debug("Retrieved ModuleManagementFacade from ServletContext with attribute name '"
                + attributeName + "': " + attribute);
    }

    return ObjectUtils.cast(attribute, ModuleManagementFacade.class);
}

From source file:edu.cornell.mannlib.vitro.webapp.modelaccess.ModelAccess.java

public static ContextModelAccess on(ServletContext ctx) {
    Object o = ctx.getAttribute(ATTRIBUTE_NAME);
    if (o instanceof ContextModelAccess) {
        return (ContextModelAccess) o;
    } else {//from w  w w .  ja  v  a2s. c o m
        ContextModelAccess access = factory.buildContextModelAccess(ctx);
        ctx.setAttribute(ATTRIBUTE_NAME, access);
        return access;
    }
}

From source file:org.apache.hadoop.hdfs.server.namenode.NameNodeHttpServer.java

public static InetSocketAddress getNameNodeAddressFromContext(ServletContext context) {
    return (InetSocketAddress) context.getAttribute(NAMENODE_ADDRESS_ATTRIBUTE_KEY);
}

From source file:edu.cornell.mannlib.vitro.webapp.auth.permissions.PermissionRegistry.java

/**
 * Has the registry been created yet?//from   w  ww  .j a v a2s .  c  o  m
 */
public static boolean isRegistryCreated(ServletContext ctx) {
    return ctx.getAttribute(ATTRIBUTE_NAME) instanceof PermissionRegistry;
}

From source file:es.tid.cep.esperanza.Utils.java

public static synchronized void destroyEPService(ServletContext sc) {
    EPServiceProvider epService = (EPServiceProvider) sc.getAttribute(EPSERV_ATTR_NAME);
    if (epService != null) {
        epService.destroy();/*from  ww w . j a va 2s . c o  m*/
        sc.removeAttribute(EPSERV_ATTR_NAME);
    }
}

From source file:edu.cornell.mannlib.vitro.webapp.controller.authenticate.ExternalAuthHelper.java

/**
 * Get the bean from the servlet context. If there is no bean, create one.
 * /*from   w w  w . j  a v  a 2s  .co  m*/
 * Never returns null.
 */
public static ExternalAuthHelper getHelper(ServletRequest request) {
    if (!(request instanceof HttpServletRequest)) {
        log.trace("Not an HttpServletRequest: " + request);
        return DUMMY_HELPER;
    }

    HttpSession session = ((HttpServletRequest) request).getSession(false);
    if (session == null) {
        log.trace("No session; no need to create one.");
        return DUMMY_HELPER;
    }

    ServletContext ctx = session.getServletContext();

    Object attr = ctx.getAttribute(BEAN_ATTRIBUTE);
    if (attr instanceof ExternalAuthHelper) {
        log.trace("Found a bean: " + attr);
        return (ExternalAuthHelper) attr;
    }

    ExternalAuthHelper bean = buildBean(ctx);
    log.debug("Created a bean: " + bean);
    setBean(ctx, bean);
    return bean;
}

From source file:es.tid.cep.esperanza.Utils.java

public static synchronized EPServiceProvider initEPService(ServletContext sc) {
    EPServiceProvider epService = (EPServiceProvider) sc.getAttribute(EPSERV_ATTR_NAME);
    if (epService == null) {
        epService = EPServiceProviderManager.getDefaultProvider();
        Map<String, Object> def = new HashMap<String, Object>();
        def.put("id", String.class);
        def.put("type", String.class);
        ConfigurationOperations cfg = epService.getEPAdministrator().getConfiguration();
        cfg.addEventType("iotEvent", def);
        sc.setAttribute(EPSERV_ATTR_NAME, epService);
    }//from w w  w.  j  a v  a2s .  c  o m
    return epService;
}

From source file:edu.cornell.mannlib.vitro.webapp.search.solr.SolrSetup.java

public static SolrServer getSolrServer(ServletContext ctx) {
    return (SolrServer) ctx.getAttribute(SOLR_SERVER);
}

From source file:edu.cornell.mannlib.vitro.webapp.i18n.selection.SelectedLocale.java

/**
 * Get the list of selectable Locales from the servlet context. May return
 * an empty list, but never returns null.
 *//*ww w  . jav a  2 s .c  o m*/
public static List<Locale> getSelectableLocales(ServletContext ctx) {
    Object ctxInfo = ctx.getAttribute(ATTRIBUTE_NAME);
    if (ctxInfo instanceof ContextSelectedLocale) {
        List<Locale> selectableLocales = ((ContextSelectedLocale) ctxInfo).getSelectableLocales();
        if (selectableLocales != null) {
            log.debug("Returning selectable locales: " + selectableLocales);
            return selectableLocales;
        }
    }

    log.debug("No selectable locales were found. Returning an empty list.");
    return Collections.emptyList();
}