Example usage for javax.servlet ServletContext getAttribute

List of usage examples for javax.servlet ServletContext getAttribute

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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.psikeds.common.config.ContextLoaderListener.java

/**
 * Servlet is shutting down. Close context and destroy Spring-Beans.
 *//*from w  w w.  j  a  v  a2 s.c o m*/
@Override
public void contextDestroyed(final ServletContextEvent event) {
    if (this.contextLoader != null) {
        this.contextLoader.closeWebApplicationContext(event.getServletContext());
    }
    final ServletContext sc = event.getServletContext();
    final Enumeration<?> attrNames = sc.getAttributeNames();
    while (attrNames.hasMoreElements()) {
        final String attrName = (String) attrNames.nextElement();
        if (attrName.startsWith("org.springframework.")) {
            final Object attrValue = sc.getAttribute(attrName);
            if (attrValue instanceof DisposableBean) {
                try {
                    ((DisposableBean) attrValue).destroy();
                } catch (final Exception ex) {
                    LOGGER.error("Couldn't invoke destroy method of attribute with name '" + attrName + "'",
                            ex);
                }
            }
        }
    }
}

From source file:nu.kelvin.jfileshare.servlets.AboutServlet.java

@Override
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    ServletContext app = getServletContext();
    RequestDispatcher disp;/*from   w  w w .j  a v  a 2  s  .c  o m*/
    req.setAttribute("tab", "About");
    disp = app.getRequestDispatcher("/templates/About.jsp");
    HttpSession session = req.getSession();
    Conf conf = (Conf) app.getAttribute("conf");

    req.setAttribute("daysLogRetention", conf.getDaysLogRetention());

    if (session.getAttribute("user") != null) {
        Connection dbConn = null;
        PreparedStatement st = null;
        try {
            long bytesStoreAvailable = FileSystemUtils.freeSpaceKb(conf.getPathStore()) * 1024;
            req.setAttribute("bytesStoreAvailable", FileItem.humanReadable(bytesStoreAvailable));

            dbConn = ds.getConnection();
            st = dbConn.prepareStatement(
                    "select cast(count(1) as char) as logins, cast(count(distinct payload) as char) as uniqueLogins from Logs where action=\"login\" and date > (now() - INTERVAL ? DAY)");
            st.setInt(1, conf.getDaysLogRetention());
            ResultSet rs = st.executeQuery();
            if (rs.first()) {
                req.setAttribute("logins", rs.getString("logins"));
                req.setAttribute("uniqueLogins", rs.getString("uniqueLogins"));
            }

            st = dbConn.prepareStatement(
                    "select cast(count(1) as char) as downloads, sum(cast(payload as unsigned)) as bytesDownloads from Logs where action=\"download\" and date > (now() - INTERVAL ? DAY)");
            st.setInt(1, conf.getDaysLogRetention());
            rs = st.executeQuery();
            if (rs.first()) {
                req.setAttribute("downloads", rs.getString("downloads"));
                req.setAttribute("bytesDownloads", FileItem.humanReadable(rs.getLong("bytesDownloads")));
            }

            st = dbConn.prepareStatement(
                    "select cast(count(1) as char) as uploads, sum(cast(payload as unsigned)) as bytesUploads from Logs where action=\"upload\" and date > (now() - INTERVAL ? DAY)");
            st.setInt(1, conf.getDaysLogRetention());
            rs = st.executeQuery();
            if (rs.first()) {
                req.setAttribute("uploads", rs.getString("uploads"));
                req.setAttribute("bytesUploads", FileItem.humanReadable(rs.getLong("bytesUploads")));
            }
            st.close();
        } catch (SQLException e) {
            logger.severe(e.toString());
        } finally {
            if (dbConn != null) {
                try {
                    dbConn.close();
                } catch (SQLException ignore) {
                }
            }
        }
    }
    disp.forward(req, resp);
}

From source file:org.hdiv.config.multipart.AbstractMultipartConfig.java

/**
 * Returns the path to the temporary directory to be used for uploaded files which are written to disk. The
 * directory used is determined from the first of the following to be non-empty.
 * <ol>//ww w .j a v a 2 s  . co m
 * <li>A temp dir explicitly defined using the <code>saveDir</code> attribute of the &lt;multipartConfig&gt; element
 * in the Spring config file.</li>
 * <li>The temp dir specified by the <code>javax.servlet.context.tempdir</code> attribute.</li>
 * </ol>
 * 
 * @param servletContext
 *            servlet context
 * @return The path to the directory to be used to store uploaded files.
 */
public String getRepositoryPath(ServletContext servletContext) {

    // First, look for an explicitly defined temp dir.
    String saveDir = this.tempDir;

    if ((saveDir == null) || saveDir.equals("")) {
        File tempdir = (File) servletContext.getAttribute("javax.servlet.context.tempdir");
        log.info("Unable to find 'saveDir' property setting. Defaulting to javax.servlet.context.tempdir");

        if (tempdir != null) {
            saveDir = tempdir.toString();
        }

        // If none, look for a container specified temp dir.
        if (saveDir == null || saveDir.length() == 0) {
            saveDir = System.getProperty("java.io.tmpdir");
        }

    } else {
        File multipartSaveDir = new File(saveDir);

        if (!multipartSaveDir.exists()) {
            multipartSaveDir.mkdir();
        }
    }

    if (log.isTraceEnabled()) {
        log.trace("File upload temp dir: " + saveDir);
    }

    return saveDir;
}

From source file:org.apache.hadoop.http.HttpServer2.java

/**
 * check whether user is static and unauthenticated, if the
 * answer is TRUE, that means http sever is in non-security
 * environment./*from w  w  w.  java 2s .co m*/
 * @param servletContext the servlet context.
 * @param request the servlet request.
 * @return TRUE/FALSE based on the logic described above.
 */
public static boolean isStaticUserAndNoneAuthType(ServletContext servletContext, HttpServletRequest request) {
    Configuration conf = (Configuration) servletContext.getAttribute(CONF_CONTEXT_ATTRIBUTE);
    final String authType = request.getAuthType();
    final String staticUser = conf.get(CommonConfigurationKeys.HADOOP_HTTP_STATIC_USER,
            CommonConfigurationKeys.DEFAULT_HADOOP_HTTP_STATIC_USER);
    return authType == null && staticUser.equals(request.getRemoteUser());
}

From source file:org.apache.nifi.processors.standard.servlets.ListenHTTPServlet.java

@SuppressWarnings("unchecked")
@Override//from   w w  w  . j a v  a 2  s .co m
public void init(final ServletConfig config) throws ServletException {
    final ServletContext context = config.getServletContext();
    this.logger = (ComponentLog) context.getAttribute(ListenHTTP.CONTEXT_ATTRIBUTE_LOGGER);
    this.sessionFactoryHolder = (AtomicReference<ProcessSessionFactory>) context
            .getAttribute(ListenHTTP.CONTEXT_ATTRIBUTE_SESSION_FACTORY_HOLDER);
    this.processContext = (ProcessContext) context
            .getAttribute(ListenHTTP.CONTEXT_ATTRIBUTE_PROCESS_CONTEXT_HOLDER);
    this.authorizedPattern = (Pattern) context.getAttribute(ListenHTTP.CONTEXT_ATTRIBUTE_AUTHORITY_PATTERN);
    this.headerPattern = (Pattern) context.getAttribute(ListenHTTP.CONTEXT_ATTRIBUTE_HEADER_PATTERN);
    this.flowFileMap = (ConcurrentMap<String, FlowFileEntryTimeWrapper>) context
            .getAttribute(ListenHTTP.CONTEXT_ATTRIBUTE_FLOWFILE_MAP);
    this.streamThrottler = (StreamThrottler) context
            .getAttribute(ListenHTTP.CONTEXT_ATTRIBUTE_STREAM_THROTTLER);
    this.basePath = (String) context.getAttribute(ListenHTTP.CONTEXT_ATTRIBUTE_BASE_PATH);
}

From source file:org.red5.server.scope.WebScope.java

/**
 * Sets the local app context variable based on host id if available in the 
 * servlet context./*from ww  w  .  jav  a2s. c  o m*/
 */
private final void getAppContext() {
    //get the host id
    String hostId = null;
    //get host from servlet context
    if (servletContext != null) {
        ServletContext sctx = servletContext.getContext(contextPath);
        if (sctx != null) {
            hostId = (String) sctx.getAttribute("red5.host.id");
            log.trace("Host id from init param: {}", hostId);
        }
    }
    if (hostId != null) {
        appContext = LoaderBase.getRed5ApplicationContext(hostId + contextPath);
    } else {
        appContext = LoaderBase.getRed5ApplicationContext(contextPath);
    }
}

From source file:jeeves.monitor.MonitorManager.java

private HealthCheckRegistry lookUpHealthCheckRegistry(ServletContext context, String attributeKey) {
    HealthCheckRegistry tmpHealthCheckRegistry = (HealthCheckRegistry) context.getAttribute(attributeKey);
    if (tmpHealthCheckRegistry == null) {
        tmpHealthCheckRegistry = new HealthCheckRegistry();
    }/*www. java 2 s.  c om*/
    context.setAttribute(attributeKey, tmpHealthCheckRegistry);
    return tmpHealthCheckRegistry;
}

From source file:org.impalaframework.web.integration.ModuleProxyFilter.java

@Override
protected void processMapping(ServletContext context, HttpServletRequest request, HttpServletResponse response,
        FilterChain chain, RequestModuleMapping moduleMapping, String applicationId)
        throws IOException, ServletException {

    String attributeName = ModuleHttpServiceInvoker.class.getName() + "." + moduleMapping.getModuleName();
    Object attribute = context.getAttribute(attributeName);

    HttpServiceInvoker invoker = ObjectUtils.cast(attribute, HttpServiceInvoker.class);

    if (logger.isDebugEnabled()) {
        if (invoker != null) {
            logger.debug("Invoker for attribute '" + attributeName + "': " + invoker);
        } else {/*  w  w w  . j  a va  2s  .  c  om*/
            if (logger.isDebugEnabled())
                logger.debug("No invoker found for attribute '" + attributeName);
        }
    }

    if (invoker != null) {
        HttpServletRequest wrappedRequest = wrappedRequest(request, context, moduleMapping, applicationId);
        invoker.invoke(wrappedRequest, response, chain);
    } else {
        chain.doFilter(request, response);
    }
}

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

private void registerUserSession(HttpServletRequest request, String username) {
    log.debug("HstConcurrentLoginFilter will register session for {}", username);
    HttpSession session = request.getSession();
    session.setAttribute(USERNAME_ATTR, username);

    ServletContext servletContext = session.getServletContext();
    @SuppressWarnings("unchecked")
    Map<String, HttpSessionWrapper> map = (Map<String, HttpSessionWrapper>) servletContext
            .getAttribute(USERNAME_SESSIONID_MAP_ATTR);

    if (map != null) {
        String newSessionId = session.getId();
        HttpSessionWrapper oldHttpSessionWrapper = map.put(username,
                new HttpSessionWrapper(session, earlySessionInvalidation));
        log.debug("HstConcurrentLoginFilter registered session ({}) for {}.", newSessionId, username);

        if (oldHttpSessionWrapper != null) {
            oldHttpSessionWrapper.invalidate();
            log.debug("HstConcurrentLoginFilter kicked out session ({}) for {}.", oldHttpSessionWrapper.getId(),
                    username);//  w  w  w  . j a va  2  s .c o m
        }
    } else {
        log.error("HstConcurrentLoginFilter is in invalid state. The session ids map is not found.");
    }
}

From source file:org.apache.pluto.driver.tags.PortletModeDropDownTag.java

/**
 * Method invoked when the start tag is encountered.
 * @throws JspException  if an error occurs.
 *//*from  ww w . ja v  a 2  s  .  co m*/
public int doStartTag() throws JspException {

    // Ensure that the modeAnchor tag resides within a portlet tag.
    PortletTag parentTag = (PortletTag) TagSupport.findAncestorWithClass(this, PortletTag.class);
    if (parentTag == null) {
        throw new JspException("Portlet window controls may only reside " + "within a pluto:portlet tag.");
    }

    portletId = parentTag.getPortletId();
    // Evaluate portlet ID attribute.
    evaluatePortletId();

    // Retrieve the portlet window config for the evaluated portlet ID.
    ServletContext servletContext = pageContext.getServletContext();
    DriverConfiguration driverConfig = (DriverConfiguration) servletContext
            .getAttribute(AttributeKeys.DRIVER_CONFIG);

    // Retrieve the portal environment.
    PortalRequestContext portalEnv = PortalRequestContext
            .getContext((HttpServletRequest) pageContext.getRequest());

    //find the current mode for use in 'selected' attrib of select option
    PortalURL requestedPortalUrl = portalEnv.getRequestedPortalURL();
    PortletWindowConfig windowConfig = PortletWindowConfig.fromId(evaluatedPortletId);
    // Retrieve the portlet container from servlet context.
    PortletContainer container = (PortletContainer) servletContext
            .getAttribute(AttributeKeys.PORTLET_CONTAINER);

    // Create the portlet window to render.
    PortletWindow window = new PortletWindowImpl(container, windowConfig, requestedPortalUrl);

    PortletMode currentMode = requestedPortalUrl.getPortletMode(window.getId().getStringId());

    //start the markup
    StringBuffer tag = new StringBuffer();
    //        String strCurrentMode = currentMode.toString();        
    //        tag.append("Current mode: " + currentMode.toString());
    tag.append(
            "<form action=\"\" name=\"modeSelectionForm\" style=\"display:inline\"><select onchange=\"self.location=this.options[this.selectedIndex].value\">");
    Set<PortletMode> modeSet = null;
    try {
        modeSet = driverConfig.getSupportedPortletModes(evaluatedPortletId);
    } catch (PortletContainerException e) {
        throw new JspException(e);
    }

    if (modeSet != null) {
        Iterator<PortletMode> i = modeSet.iterator();
        while (i.hasNext()) {
            PortletMode mode = i.next();

            PortalURL portalUrl = portalEnv.createPortalURL();
            portalUrl.setPortletMode(evaluatedPortletId, mode);

            // Build a string buffer containing the anchor tag
            tag.append("<option value=\"" + portalUrl.toString() + "\"");
            //Add 'selected' attribute for current mode.
            if (mode.equals(currentMode)) {
                tag.append(" selected=\"true\"");
            }
            tag.append(">");
            if (driverConfig.isPortletManagedMode(evaluatedPortletId, mode.toString())) {
                tag.append(getCustomModeDecorationName(driverConfig, mode));
            } else {
                tag.append(mode.toString().toUpperCase());
            }
            //               tag.append(mode.toString().toUpperCase());
            tag.append("</option>");
        }
    }
    tag.append("</select></form>");
    // Print the mode anchor tag.
    try {
        JspWriter out = pageContext.getOut();
        out.print(tag.toString());
    } catch (IOException ex) {
        throw new JspException(ex);
    }

    // Continue to evaluate the tag body.
    return EVAL_BODY_INCLUDE;
}