List of usage examples for javax.servlet ServletContext getAttribute
public Object getAttribute(String name);
null if there is no attribute by that name. From source file:org.apache.asterix.api.http.servlet.QueryServiceServlet.java
private void handleRequest(RequestParameters param, HttpServletResponse response) throws IOException { LOGGER.info(param.toString());/*from www . j a v a 2s. co m*/ long elapsedStart = System.nanoTime(); final StringWriter stringWriter = new StringWriter(); final PrintWriter resultWriter = new PrintWriter(stringWriter); SessionConfig sessionConfig = createSessionConfig(param, resultWriter); response.setCharacterEncoding("utf-8"); response.setContentType(MediaType.JSON.str()); int respCode = HttpServletResponse.SC_OK; Stats stats = new Stats(); long execStart = -1; long execEnd = -1; resultWriter.print("{\n"); printRequestId(resultWriter); printClientContextID(resultWriter, param); printSignature(resultWriter); printType(resultWriter, sessionConfig); try { final IClusterManagementWork.ClusterState clusterState = ClusterStateManager.INSTANCE.getState(); if (clusterState != IClusterManagementWork.ClusterState.ACTIVE) { // using a plain IllegalStateException here to get into the right catch clause for a 500 throw new IllegalStateException("Cannot execute request, cluster is " + clusterState); } if (param.statement == null || param.statement.isEmpty()) { throw new AsterixException("Empty request, no statement provided"); } IHyracksClientConnection hcc; IHyracksDataset hds; ServletContext context = getServletContext(); 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); } } IParser parser = compilationProvider.getParserFactory().createParser(param.statement); List<Statement> aqlStatements = parser.parse(); MetadataManager.INSTANCE.init(); IStatementExecutor translator = statementExecutorFactory.create(aqlStatements, sessionConfig, compilationProvider); execStart = System.nanoTime(); translator.compileAndExecute(hcc, hds, QueryTranslator.ResultDelivery.SYNC, stats); execEnd = System.nanoTime(); printStatus(resultWriter, ResultStatus.SUCCESS); } catch (AsterixException | TokenMgrError | org.apache.asterix.aqlplus.parser.TokenMgrError pe) { GlobalConfig.ASTERIX_LOGGER.log(Level.SEVERE, pe.getMessage(), pe); printError(resultWriter, pe); printStatus(resultWriter, ResultStatus.FATAL); respCode = HttpServletResponse.SC_BAD_REQUEST; } catch (Exception e) { GlobalConfig.ASTERIX_LOGGER.log(Level.SEVERE, e.getMessage(), e); printError(resultWriter, e); printStatus(resultWriter, ResultStatus.FATAL); respCode = HttpServletResponse.SC_INTERNAL_SERVER_ERROR; } finally { if (execStart == -1) { execEnd = -1; } else if (execEnd == -1) { execEnd = System.nanoTime(); } } printMetrics(resultWriter, System.nanoTime() - elapsedStart, execEnd - execStart, stats.getCount(), stats.getSize()); resultWriter.print("}\n"); resultWriter.flush(); String result = stringWriter.toString(); GlobalConfig.ASTERIX_LOGGER.log(Level.FINE, result); response.setStatus(respCode); response.getWriter().print(result); if (response.getWriter().checkError()) { LOGGER.warning("Error flushing output writer"); } }
From source file:alluxio.proxy.s3.S3RestServiceHandler.java
/** * Constructs a new {@link S3RestServiceHandler}. * * @param context context for the servlet */// w w w . jav a 2s . c o m public S3RestServiceHandler(@Context ServletContext context) { mFileSystem = (FileSystem) context.getAttribute(ProxyWebServer.FILE_SYSTEM_SERVLET_RESOURCE_KEY); }
From source file:com.jdon.jivejdon.presentation.servlet.upload.ExtendedMultiPartRequestHandler.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>/*w w w .j a v a2 s .c om*/ * <li>A temp dir explicitly defined either using the <code>tempDir</code> * servlet init param, or the <code>tempDir</code> attribute of the * <controller> element in the Struts config file.</li> * <li>The container-specified temp dir, obtained from the * <code>javax.servlet.context.tempdir</code> servlet context attribute.</li> * <li>The temp dir specified by the <code>java.io.tmpdir</code> system * property.</li> (/ol> * * @param mc * The module config instance for which the path should be * determined. * * @return The path to the directory to be used to store uploaded files. */ protected String getRepositoryPath(ModuleConfig mc) { // First, look for an explicitly defined temp dir. String tempDir = mc.getControllerConfig().getTempDir(); // If none, look for a container specified temp dir. if (tempDir == null || tempDir.length() == 0) { if (servlet != null) { ServletContext context = servlet.getServletContext(); File tempDirFile = (File) context.getAttribute("javax.servlet.context.tempdir"); tempDir = tempDirFile.getAbsolutePath(); } // If none, pick up the system temp dir. if (tempDir == null || tempDir.length() == 0) { tempDir = System.getProperty("java.io.tmpdir"); } } if (log.isTraceEnabled()) { log.trace("File upload temp dir: " + tempDir); } return tempDir; }
From source file:net.wastl.webmail.server.WebMailServlet.java
public void init(ServletConfig config) throws ServletException { final ServletContext sc = config.getServletContext(); log.debug("Init"); final String depName = (String) sc.getAttribute("deployment.name"); final Properties rtProps = (Properties) sc.getAttribute("meta.properties"); log.debug("RT configs retrieved for application '" + depName + "'"); srvlt_config = config;// w w w . j av a 2 s . c om this.config = new Properties(); final Enumeration enumVar = config.getInitParameterNames(); while (enumVar.hasMoreElements()) { final String s = (String) enumVar.nextElement(); this.config.put(s, config.getInitParameter(s)); log.debug(s + ": " + config.getInitParameter(s)); } /* * Issue a warning if webmail.basepath and/or webmail.imagebase are not * set. */ if (config.getInitParameter("webmail.basepath") == null) { log.warn("webmail.basepath initArg should be set to the WebMail " + "Servlet's base path"); basepath = ""; } else { basepath = config.getInitParameter("webmail.basepath"); } if (config.getInitParameter("webmail.imagebase") == null) { log.error("webmail.basepath initArg should be set to the WebMail " + "Servlet's base path"); imgbase = ""; } else { imgbase = config.getInitParameter("webmail.imagebase"); } /* * Try to get the pathnames from the URL's if no path was given in the * initargs. */ if (config.getInitParameter("webmail.data.path") == null) { this.config.put("webmail.data.path", sc.getRealPath("/data")); } if (config.getInitParameter("webmail.lib.path") == null) { this.config.put("webmail.lib.path", sc.getRealPath("/lib")); } if (config.getInitParameter("webmail.template.path") == null) { this.config.put("webmail.template.path", sc.getRealPath("/lib/templates")); } if (config.getInitParameter("webmail.xml.path") == null) { this.config.put("webmail.xml.path", sc.getRealPath("/lib/xml")); } if (config.getInitParameter("webmail.log.facility") == null) { this.config.put("webmail.log.facility", "net.wastl.webmail.logger.ServletLogger"); } // Override settings with webmail.* meta.properties final Enumeration rte = rtProps.propertyNames(); int overrides = 0; String k; while (rte.hasMoreElements()) { k = (String) rte.nextElement(); if (!k.startsWith("webmail.")) { continue; } overrides++; this.config.put(k, rtProps.getProperty(k)); } log.debug(Integer.toString(overrides) + " settings passed to WebMailServer, out of " + rtProps.size() + " RT properties"); /* * Call the WebMailServer's initialization method and forward all * Exceptions to the ServletServer */ try { doInit(); } catch (final Exception e) { log.error("Could not intialize", e); throw new ServletException("Could not intialize: " + e.getMessage(), e); } Helper.logThreads("Bottom of WebMailServlet.init()"); }
From source file:org.apache.struts.upload.CommonsMultipartRequestHandler.java
/** * <p> 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> <li>A temp dir * explicitly defined either using the <code>tempDir</code> servlet init * param, or the <code>tempDir</code> attribute of the <controller> * element in the Struts config file.</li> <li>The container-specified * temp dir, obtained from the <code>javax.servlet.context.tempdir</code> * servlet context attribute.</li> <li>The temp dir specified by the * <code>java.io.tmpdir</code> system property.</li> (/ol> </p> * * @param mc The module config instance for which the path should be * determined.// ww w. j av a 2 s . com * @return The path to the directory to be used to store uploaded files. */ protected String getRepositoryPath(ModuleConfig mc) { // First, look for an explicitly defined temp dir. String tempDir = mc.getControllerConfig().getTempDir(); // If none, look for a container specified temp dir. if ((tempDir == null) || (tempDir.length() == 0)) { if (servlet != null) { ServletContext context = servlet.getServletContext(); File tempDirFile = (File) context.getAttribute("javax.servlet.context.tempdir"); tempDir = tempDirFile.getAbsolutePath(); } // If none, pick up the system temp dir. if ((tempDir == null) || (tempDir.length() == 0)) { tempDir = System.getProperty("java.io.tmpdir"); } } if (log.isTraceEnabled()) { log.trace("File upload temp dir: " + tempDir); } return tempDir; }
From source file:com.dhcc.framework.web.context.DhccContextLoader.java
/** * Initialize Spring's web application context for the given servlet context, * using the application context provided at construction time, or creating a new one * according to the "{@link #CONTEXT_CLASS_PARAM contextClass}" and * "{@link #CONFIG_LOCATION_PARAM contextConfigLocation}" context-params. * @param servletContext current servlet context * @return the new WebApplicationContext * @see #ContextLoader(WebApplicationContext) * @see #CONTEXT_CLASS_PARAM//from w ww.j a v a 2 s. c o m * @see #CONFIG_LOCATION_PARAM */ public WebApplicationContext initWebApplicationContext(ServletContext servletContext) { if (servletContext.getAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE) != null) { throw new IllegalStateException( "Cannot initialize context because there is already a root application context present - " + "check whether you have multiple ContextLoader* definitions in your web.xml!"); } Log logger = LogFactory.getLog(DhccContextLoader.class); servletContext.log("Initializing Spring root WebApplicationContext"); if (logger.isInfoEnabled()) { logger.info("Root WebApplicationContext: initialization started"); } long startTime = System.currentTimeMillis(); try { // Store context in local instance variable, to guarantee that // it is available on ServletContext shutdown. if (this.context == null) { this.context = createWebApplicationContext(servletContext); } if (this.context instanceof ConfigurableWebApplicationContext) { ConfigurableWebApplicationContext cwac = (ConfigurableWebApplicationContext) this.context; if (!cwac.isActive()) { // The context has not yet been refreshed -> provide services such as // setting the parent context, setting the application context id, etc if (cwac.getParent() == null) { // The context instance was injected without an explicit parent -> // determine parent for root web application context, if any. ApplicationContext parent = loadParentContext(servletContext); cwac.setParent(parent); } configureAndRefreshWebApplicationContext(cwac, servletContext); } } servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, this.context); ClassLoader ccl = Thread.currentThread().getContextClassLoader(); if (ccl == DhccContextLoader.class.getClassLoader()) { currentContext = this.context; } else if (ccl != null) { currentContextPerThread.put(ccl, this.context); } if (logger.isDebugEnabled()) { logger.debug("Published root WebApplicationContext as ServletContext attribute with name [" + WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE + "]"); } if (logger.isInfoEnabled()) { long elapsedTime = System.currentTimeMillis() - startTime; logger.info("Root WebApplicationContext: initialization completed in " + elapsedTime + " ms"); } return this.context; } catch (RuntimeException ex) { logger.error("Context initialization failed", ex); servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, ex); throw ex; } catch (Error err) { logger.error("Context initialization failed", err); servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, err); throw err; } }
From source file:uk.ac.ebi.ep.controller.SearchController.java
/** * Retrieves any previous searches stored in the application context. * * @param servletContext the application context. * @return a map of searches to results. *//*from w w w . j av a 2 s.c o m*/ @SuppressWarnings("unchecked") protected Map<String, SearchResults> getPreviousSearches(ServletContext servletContext) { Map<String, SearchResults> prevSearches = (Map<String, SearchResults>) servletContext .getAttribute(Attribute.prevSearches.name()); if (prevSearches == null) { // Map implementation which maintains the order of access: prevSearches = Collections.synchronizedMap( new LinkedHashMap<String, SearchResults>(searchConfig.getSearchCacheSize(), 1, true)); servletContext.setAttribute(Attribute.prevSearches.getName(), prevSearches); } return prevSearches; }
From source file:org.apache.struts.util.ModuleUtils.java
/** * Select the module to which the specified request belongs, and add * corresponding request attributes to this request. * * @param prefix The module prefix of the desired module * @param request The servlet request we are processing * @param context The ServletContext for this web application *//*from w w w .j a va 2 s . co m*/ public void selectModule(String prefix, HttpServletRequest request, ServletContext context) { // Expose the resources for this module ModuleConfig config = getModuleConfig(prefix, context); if (config != null) { request.setAttribute(Globals.MODULE_KEY, config); MessageResourcesConfig[] mrConfig = config.findMessageResourcesConfigs(); for (int i = 0; i < mrConfig.length; i++) { String key = mrConfig[i].getKey(); MessageResources resources = (MessageResources) context.getAttribute(key + prefix); if (resources != null) { request.setAttribute(key, resources); } else { request.removeAttribute(key); } } } else { request.removeAttribute(Globals.MODULE_KEY); } }
From source file:com.mtgi.analytics.servlet.BehaviorTrackingListener.java
private synchronized void checkInit(ServletRequestEvent event) { if (!initialized) { ServletContext context = event.getServletContext(); boolean hasFilter = BehaviorTrackingFilter.isFiltered(context); ArrayList<ServletRequestBehaviorTrackingAdapter> beans = new ArrayList<ServletRequestBehaviorTrackingAdapter>(); //find registered request adapters in all mvc servlet contexts. for (Enumeration<?> atts = context.getAttributeNames(); atts.hasMoreElements();) { String name = (String) atts.nextElement(); if (name.startsWith(FrameworkServlet.SERVLET_CONTEXT_PREFIX)) { Object value = context.getAttribute(name); if (value instanceof ListableBeanFactory) addRequestAdapters(beans, (ListableBeanFactory) value, hasFilter); }//w ww .ja va 2 s . c om } //look for shared application context, loaded by ContextLoaderListener. ListableBeanFactory parent = WebApplicationContextUtils.getWebApplicationContext(context); if (parent != null) addRequestAdapters(beans, parent, hasFilter); if (!beans.isEmpty()) { adapters = beans.toArray(new ServletRequestBehaviorTrackingAdapter[beans.size()]); log.info("BehaviorTracking for HTTP servlet requests started"); } initialized = true; } }
From source file:org.apache.pluto.driver.services.container.EventProviderImpl.java
/** * Fire all saved events Note, that the order isn't important * /* w ww . ja v a 2s . c om*/ * @see PLT14.3.2 * @param eventContainer * The {@link PortletContainerImpl} to fire the events */ public void fireEvents(EventContainer eventContainer) { ServletContext containerServletContext = PortalRequestContext.getContext(request).getServletContext(); DriverConfiguration driverConfig = (DriverConfiguration) containerServletContext .getAttribute(AttributeKeys.DRIVER_CONFIG); PortalURL portalURL = PortalURLParserImpl.getParser().parse(request); while (savedEvents.hasMoreEvents() && savedEvents.getSize() < Constants.MAX_EVENTS_SIZE) { Event eActual = getArbitraryEvent(); this.savedEvents.setProcessed(eActual); List<String> portletNames = getAllPortletsRegisteredForEvent(eActual, driverConfig, containerServletContext); Collection<PortletWindowConfig> portlets = getAllPortlets(driverConfig); // iterate all portlets in the portal for (PortletWindowConfig config : portlets) { PortletWindow window = new PortletWindowImpl(container, config, portalURL); if (portletNames != null) { for (String portlet : portletNames) { if (portlet.equals(config.getId())) { // the thread now is a new one, with possible // waiting, // for the old to exit PortletWindowThread portletWindowThread = getPortletWindowThread(eventContainer, config, window, containerServletContext); // is this event portletWindowThread.addEvent(eActual); portletWindowThread.start(); } } } } waitForEventExecution(); try { Thread.sleep(WAITING_CYCLE); } catch (InterruptedException e) { LOG.warn(e); } } waitForEventExecution(); }