javax.servlet.DispatcherType Java Examples

@Test
public void shouldAddDefaultHeadersForRootContext() throws Exception {
    jetty9Server.configure();
    jetty9Server.startHandlers();

    HttpServletResponse response = mock(HttpServletResponse.class);
    when(response.getWriter()).thenReturn(mock(PrintWriter.class));

    HttpServletRequest request = mock(HttpServletRequest.class);

    Request baseRequest = mock(Request.class);
    when(baseRequest.getDispatcherType()).thenReturn(DispatcherType.REQUEST);
    when(baseRequest.getHttpFields()).thenReturn(mock(HttpFields.class));

    ContextHandler rootPathHandler = getLoadedHandlers().get(GoServerLoadingIndicationHandler.class);
    rootPathHandler.setServer(server);
    rootPathHandler.start();
    rootPathHandler.handle("/something", baseRequest, request, response);

    verify(response).setHeader("X-XSS-Protection", "1; mode=block");
    verify(response).setHeader("X-Content-Type-Options", "nosniff");
    verify(response).setHeader("X-Frame-Options", "SAMEORIGIN");
    verify(response).setHeader("X-UA-Compatible", "chrome=1");
}
 

@Override
public void onStartup(final Set<Class<?>> c, final ServletContext ctx) {
    final Configuration builder = Configuration.class.cast(ctx.getAttribute("meecrowave.configuration"));
    final Meecrowave instance = Meecrowave.class.cast(ctx.getAttribute("meecrowave.instance"));
    if (builder.isCdiConversation()) {
        try {
            final Class<? extends Filter> clazz = (Class<? extends Filter>) OWBAutoSetup.class.getClassLoader()
                  .loadClass("org.apache.webbeans.web.context.WebConversationFilter");
            final FilterRegistration.Dynamic filter = ctx.addFilter("owb-conversation", clazz);
            filter.addMappingForUrlPatterns(EnumSet.allOf(DispatcherType.class), false, "/*");
        } catch (final Exception e) {
            // no-op
        }
    }

    // eager boot to let injections work in listeners
    final EagerBootListener bootListener = new EagerBootListener(instance);
    bootListener.doContextInitialized(new ServletContextEvent(ctx));
    ctx.addListener(bootListener);
}
 

public String[] getDispatcherNames() {
    ArrayList<String> result = new ArrayList<String>();
    if ((dispatcherMapping & FORWARD) > 0) {
        result.add(DispatcherType.FORWARD.name());
    }
    if ((dispatcherMapping & INCLUDE) > 0) {
        result.add(DispatcherType.INCLUDE.name());
    }
    if ((dispatcherMapping & REQUEST) > 0) {
        result.add(DispatcherType.REQUEST.name());
    }
    if ((dispatcherMapping & ERROR) > 0) {
        result.add(DispatcherType.ERROR.name());
    }
    if ((dispatcherMapping & ASYNC) > 0) {
        result.add(DispatcherType.ASYNC.name());
    }
    return result.toArray(new String[result.size()]);
}
 

@Override
public void handleRequest(final HttpServerExchange exchange) throws Exception {
    final ServletRequestContext servletRequestContext = exchange.getAttachment(ServletRequestContext.ATTACHMENT_KEY);
    ServletRequest request = servletRequestContext.getServletRequest();
    if (request.getDispatcherType() == DispatcherType.REQUEST) {
        List<SingleConstraintMatch> constraints = servletRequestContext.getRequiredConstrains();
        SecurityContext sc = exchange.getSecurityContext();
        if (!authorizationManager.canAccessResource(constraints, sc.getAuthenticatedAccount(), servletRequestContext.getCurrentServlet().getManagedServlet().getServletInfo(), servletRequestContext.getOriginalRequest(), servletRequestContext.getDeployment())) {

            HttpServletResponse response = (HttpServletResponse) servletRequestContext.getServletResponse();
            response.sendError(StatusCodes.FORBIDDEN);
            return;
        }
    }
    next.handleRequest(exchange);
}
 

private void addServletFilters(RegistryConfiguration registryConfiguration, Environment environment) {
    List<ServletFilterConfiguration> servletFilterConfigurations = registryConfiguration.getServletFilters();
    if (servletFilterConfigurations != null && !servletFilterConfigurations.isEmpty()) {
        for (ServletFilterConfiguration servletFilterConfig : servletFilterConfigurations) {
            try {
                String className = servletFilterConfig.getClassName();
                Map<String, String> params = servletFilterConfig.getParams();
                String typeSuffix = params.get("type") != null ? ("-" + params.get("type").toString()) : "";
                LOG.info("Registering servlet filter [{}]", servletFilterConfig);
                Class<? extends Filter> filterClass = (Class<? extends Filter>) Class.forName(className);
                FilterRegistration.Dynamic dynamic = environment.servlets().addFilter(className + typeSuffix, filterClass);
                if (params != null) {
                    dynamic.setInitParameters(params);
                }
                dynamic.addMappingForUrlPatterns(EnumSet.allOf(DispatcherType.class), true, "/*");
            } catch (Exception e) {
                LOG.error("Error registering servlet filter {}", servletFilterConfig);
                throw new RuntimeException(e);
            }
        }
    }
}
 

@Override
public void handleRequest(final HttpServerExchange exchange) throws Exception {
    final ServletRequestContext servletRequestContext = exchange.getAttachment(ServletRequestContext.ATTACHMENT_KEY);
    ServletRequest request = servletRequestContext.getServletRequest();
    ServletResponse response = servletRequestContext.getServletResponse();
    DispatcherType dispatcher = servletRequestContext.getDispatcherType();
    Boolean supported = asyncSupported.get(dispatcher);
    if(supported != null && ! supported) {
        servletRequestContext.setAsyncSupported(false);
    }

    final List<ManagedFilter> filters = this.filters.get(dispatcher);
    if(filters == null) {
        next.handleRequest(exchange);
    } else {
        final FilterChainImpl filterChain = new FilterChainImpl(exchange, filters, next, allowNonStandardWrappers);
        filterChain.doFilter(request, response);
    }
}
 

public FilterHandler(final Map<DispatcherType, List<ManagedFilter>> filters, final boolean allowNonStandardWrappers, final HttpHandler next) {
    this.allowNonStandardWrappers = allowNonStandardWrappers;
    this.next = next;
    this.filters = new EnumMap<>(filters);
    Map<DispatcherType, Boolean> asyncSupported = new EnumMap<>(DispatcherType.class);
    for(Map.Entry<DispatcherType, List<ManagedFilter>> entry : filters.entrySet()) {
        boolean supported = true;
        for(ManagedFilter i : entry.getValue()) {
            if(!i.getFilterInfo().isAsyncSupported()) {
                supported = false;
                break;
            }
        }
        asyncSupported.put(entry.getKey(), supported);
    }
    this.asyncSupported = asyncSupported;
}
 

@Override
public void before(Object target, Object[] args) {
    if (isDebug) {
        logger.beforeInterceptor(target, args);
    }

    if (!argumentValidator.validate(args)) {
        return;
    }

    try {
        final HttpServletRequest request = (HttpServletRequest) args[0];
        if (request.getDispatcherType() == DispatcherType.ASYNC) {
            if (isDebug) {
                logger.debug("Skip async servlet Request. isAsyncStarted={}, dispatcherType={}", request.isAsyncStarted(), request.getDispatcherType());
            }
            return;
        }

        this.servletRequestListenerInterceptorHelper.initialized(request, ResinConstants.RESIN_METHOD, this.methodDescriptor);
    } catch (Throwable t) {
        if (isInfo) {
            logger.info("Failed to servlet request event handle.", t);
        }
    }
}
 

@Override
public void after(Object target, Object[] args, Object result, Throwable throwable) {
    if (isDebug) {
        logger.afterInterceptor(target, args, result, throwable);
    }

    try {
        final HttpServletRequest request = toHttpServletRequest(args);
        final HttpServletResponse response = toHttpServletResponse(args);
        if (request.getDispatcherType() == DispatcherType.ASYNC || request.getDispatcherType() == DispatcherType.ERROR) {
            if (isDebug) {
                logger.debug("Skip async servlet request event. isAsyncStarted={}, dispatcherType={}", request.isAsyncStarted(), request.getDispatcherType());
            }
            return;
        }
        final int statusCode = getStatusCode(response);
        this.servletRequestListenerInterceptorHelper.destroyed(request, throwable, statusCode);
    } catch (Throwable t) {
        if (isInfo) {
            logger.info("Failed to servlet request event handle.", t);
        }
    }
}
 

@Test // SPR-16983
public void forwardedRequestWithServletForward() throws Exception {
	this.request.setRequestURI("/foo");
	this.request.addHeader(X_FORWARDED_PROTO, "https");
	this.request.addHeader(X_FORWARDED_HOST, "www.mycompany.com");
	this.request.addHeader(X_FORWARDED_PORT, "443");

	this.filter.doFilter(this.request, new MockHttpServletResponse(), this.filterChain);
	HttpServletRequest wrappedRequest = (HttpServletRequest) this.filterChain.getRequest();

	this.request.setDispatcherType(DispatcherType.FORWARD);
	this.request.setRequestURI("/bar");
	this.filterChain.reset();

	this.filter.doFilter(wrappedRequest, new MockHttpServletResponse(), this.filterChain);
	HttpServletRequest actual = (HttpServletRequest) this.filterChain.getRequest();

	assertNotNull(actual);
	assertEquals("/bar", actual.getRequestURI());
	assertEquals("https://www.mycompany.com/bar", actual.getRequestURL().toString());
}
 

/**
 * Constructor.
 */
public DefaultWebApplicationRequest() {
    this.authType = null;
    this.asyncStarted = false;
    this.asyncSupported = false;
    this.attributeManager = new DefaultAttributeManager();
    this.characterEncoding = "ISO-8859-1";
    this.contentLength = -1;
    this.contentType = null;
    this.contextPath = "";
    this.cookies = null;
    this.dispatcherType = DispatcherType.REQUEST;
    this.headerManager = new DefaultHttpHeaderManager();
    this.headerManager.setHeader("Accept", "*/*");
    this.inputStream = new ByteArrayInputStream(new byte[0]);
    this.method = "GET";
    this.protocol = "HTTP/1.1";
    this.scheme = "http";
    this.serverName = "localhost";
    this.serverPort = 80;
    this.servletPath = "";
    this.parameters = new HashMap<>();
    this.upgraded = false;
}
 

/**
 *
 * This method will be used to set the current state of the FilterMap
 * representing the state of when filters should be applied.
 */
public void setDispatcher(String dispatcherString) {
    String dispatcher = dispatcherString.toUpperCase(Locale.ENGLISH);
    
    if (dispatcher.equals(DispatcherType.FORWARD.name())) {
        // apply FORWARD to the global dispatcherMapping.
        dispatcherMapping |= FORWARD;
    } else if (dispatcher.equals(DispatcherType.INCLUDE.name())) {
        // apply INCLUDE to the global dispatcherMapping.
        dispatcherMapping |= INCLUDE;
    } else if (dispatcher.equals(DispatcherType.REQUEST.name())) {
        // apply REQUEST to the global dispatcherMapping.
        dispatcherMapping |= REQUEST;
    }  else if (dispatcher.equals(DispatcherType.ERROR.name())) {
        // apply ERROR to the global dispatcherMapping.
        dispatcherMapping |= ERROR;
    }  else if (dispatcher.equals(DispatcherType.ASYNC.name())) {
        // apply ERROR to the global dispatcherMapping.
        dispatcherMapping |= ASYNC;
    }
}
 

@Test
public void testBug57142() throws Exception {
    getTomcatInstanceTestWebapp(false, true);

    ByteChunk res = getUrl("http://localhost:" + getPort() +
            "/test/bug5nnnn/bug57142.jsp");

    String result = res.toString();
    // javax.servlet
    assertEcho(result, "00-" + DispatcherType.ASYNC);
    // No obvious static fields for javax.servlet.http
    // Could hack something with HttpUtils...
    // No obvious static fields for javax.servlet.jsp
    // Wild card (package) import
    assertEcho(result, "01-" + RoundingMode.HALF_UP);
    // Class import
    assertEcho(result, "02-" + Collections.EMPTY_LIST.size());
}
 

@Test
public void testELTagFileImports() throws Exception {
    getTomcatInstanceTestWebapp(false, true);

    ByteChunk out = new ByteChunk();

    int rc = getUrl("http://localhost:" + getPort() + "/test/bug5nnnn/bug58178b.jsp", out, null);

    Assert.assertEquals(HttpServletResponse.SC_OK, rc);

    String result = out.toString();

    Assert.assertTrue(result, result.contains("00-" + DispatcherType.ASYNC));
    // No obvious status fields for javax.servlet.http
    // Could hack something with HttpUtils...
    // No obvious status fields for javax.servlet.jsp
    // Wild card (package) import
    Assert.assertTrue(result, result.contains("01-" + RoundingMode.HALF_UP));
    // Class import
    Assert.assertTrue(result, result.contains("02-" + Collections.EMPTY_LIST.size()));
}
 

@SuppressWarnings({ "rawtypes", "unchecked" })
@Bean
public FilterRegistrationBean xssFilterRegistration()
{
    FilterRegistrationBean registration = new FilterRegistrationBean();
    registration.setDispatcherTypes(DispatcherType.REQUEST);
    registration.setFilter(new XssFilter());
    registration.addUrlPatterns(StringUtils.split(urlPatterns, ","));
    registration.setName("xssFilter");
    registration.setOrder(Integer.MAX_VALUE);
    Map<String, String> initParameters = new HashMap<String, String>();
    initParameters.put("excludes", excludes);
    initParameters.put("enabled", enabled);
    registration.setInitParameters(initParameters);
    return registration;
}
 

@Override public void init(ServletContextHandler handler) {
  AnnotationConfigWebApplicationContext appContext =
    new AnnotationConfigWebApplicationContext() {
      // overriding this allows us to register dependencies of TracingHandlerInterceptor
      // without passing static state to a configuration class.
      @Override protected void loadBeanDefinitions(DefaultListableBeanFactory beanFactory) {
        beanFactory.registerSingleton("httpTracing", httpTracing);
        super.loadBeanDefinitions(beanFactory);
      }
    };

  appContext.register(Servlet3TestController.class); // the test resource
  appContext.register(TracingConfig.class); // generic tracing setup
  DispatcherServlet servlet = new DispatcherServlet(appContext);
  servlet.setDispatchOptionsRequest(true);
  ServletHolder servletHolder = new ServletHolder(servlet);
  servletHolder.setAsyncSupported(true);
  handler.addServlet(servletHolder, "/*");
  handler.addEventListener(new ContextLoaderListener(appContext));

  // add the trace filter, which lazy initializes a real tracing filter from the spring context
  Dynamic filterRegistration =
    handler.getServletContext().addFilter("tracingFilter", DelegatingTracingFilter.class);
  filterRegistration.setAsyncSupported(true);
  filterRegistration.addMappingForUrlPatterns(EnumSet.allOf(DispatcherType.class), true, "/*");
}
 

@Override
public void before(Object target, Object[] args) {
    if (isDebug) {
        logger.beforeInterceptor(target, args);
    }

    try {
        final HttpServletRequest request = toHttpServletRequest(args);
        if (request.getDispatcherType() == DispatcherType.ASYNC || request.getDispatcherType() == DispatcherType.ERROR) {
            if (isDebug) {
                logger.debug("Skip async servlet request event. isAsyncStarted={}, dispatcherType={}", request.isAsyncStarted(), request.getDispatcherType());
            }
            return;
        }
        this.servletRequestListenerInterceptorHelper.initialized(request, JettyConstants.JETTY_METHOD, this.methodDescriptor);
    } catch (Throwable t) {
        logger.info("Failed to servlet request event handle.", t);
    }
}
 

public String[] getDispatcherNames() {
    ArrayList<String> result = new ArrayList<String>();
    if ((dispatcherMapping & FORWARD) > 0) {
        result.add(DispatcherType.FORWARD.name());
    }
    if ((dispatcherMapping & INCLUDE) > 0) {
        result.add(DispatcherType.INCLUDE.name());
    }
    if ((dispatcherMapping & REQUEST) > 0) {
        result.add(DispatcherType.REQUEST.name());
    }
    if ((dispatcherMapping & ERROR) > 0) {
        result.add(DispatcherType.ERROR.name());
    }
    if ((dispatcherMapping & ASYNC) > 0) {
        result.add(DispatcherType.ASYNC.name());
    }
    return result.toArray(new String[result.size()]);
}
 

private void configureAuthentication(Environment environment, NewtsConfig config) {
    if (config.getAuthenticationConfig().isEnabled()) {
        environment.servlets()
            .addFilter("BasicAuth", new HttpBasicAuthenticationFilter(config))
            .addMappingForUrlPatterns(EnumSet.of(DispatcherType.REQUEST), true, "/*");
    }
}
 

private static void registerFilter(Environment environment, Config config,
        AbstractConfigFilter filter, String mapping) {

    filter.setConfigOnly(config);

    final FilterRegistration.Dynamic filterRegistration = environment
            .servlets().addFilter(filter.getClass().getName(), filter);

    filterRegistration.addMappingForUrlPatterns(
            EnumSet.of(DispatcherType.REQUEST), true, mapping);
}
 

@Override
public void run(BlockExplorerConfiguration configuration, Environment environment) throws Exception {
    BCSAPI api = hyperLedgerBundle.getBCSAPI();
    final FilterRegistration.Dynamic cors =
            environment.servlets().addFilter("CORS", CrossOriginFilter.class);

    // Configure CORS parameters
    cors.setInitParameter("allowedOrigins", "*");
    cors.setInitParameter("allowedHeaders", "*");
    cors.setInitParameter("allowedMethods", "OPTIONS,GET,PUT,POST,DELETE,HEAD");

    // Add URL mapping
    cors.addMappingForUrlPatterns(EnumSet.allOf(DispatcherType.class), true, "/*");
    environment.jersey().register(new ExplorerResource(api));
}
 

@Override public void init(ServletContextHandler handler) {
  ResourceConfig config = new ResourceConfig();
  config.register(new TestResource(httpTracing));
  config.register(SpanCustomizingApplicationEventListener.create());
  handler.addServlet(new ServletHolder(new ServletContainer(config)), "/*");

  // add the underlying servlet tracing filter which the event listener decorates with more tags
  Dynamic filterRegistration =
    handler.getServletContext().addFilter("tracingFilter", TracingFilter.create(httpTracing));
  filterRegistration.setAsyncSupported(true);
  // isMatchAfter=true is required for async tests to pass!
  filterRegistration.addMappingForUrlPatterns(EnumSet.allOf(DispatcherType.class), true, "/*");
}
 

public static void main(String[] args) throws Exception {
    DeploymentInfo servletBuilder = Servlets.deployment()
            .setContextPath("/")
            .setClassLoader(Main.class.getClassLoader())
            .setDeploymentName("zooadmin.war")
            ;
    Integer port= PropUtil.getInt("port");
    String host=PropUtil.getString("host");
    String resource=PropUtil.getString("resource");
    FilterInfo jfinalFilter=new FilterInfo("jfinal",JFinalFilter.class);
    jfinalFilter.addInitParam("configClass","com.baicai.core.Config");
    servletBuilder.addFilter(jfinalFilter);
    servletBuilder.addFilterUrlMapping("jfinal","/*", DispatcherType.REQUEST);
    servletBuilder.addFilterUrlMapping("jfinal","/*", DispatcherType.FORWARD);
    servletBuilder.setResourceManager(new FileResourceManager(new File(resource), 1024));


    DeploymentManager manager = Servlets.defaultContainer().addDeployment(servletBuilder);
    manager.deploy();
    PathHandler path = Handlers.path(Handlers.redirect("/"))
           .addPrefixPath("/", manager.start());
    Undertow server = Undertow.builder()
            .addHttpListener(port, host)
            .setHandler(path)
            .build();
    // start server
    server.start();
    log.info("http://"+host+":"+port);
}
 

@Override
protected void initTracing(ServletContextHandler context) {
    client.register(new Builder(mockTracer).build());

    ServerTracingDynamicFeature serverTracingBuilder =
        new ServerTracingDynamicFeature.Builder(mockTracer)
            .withOperationNameProvider(WildcardOperationName.newBuilder())
        .build();
    context.addFilter(new FilterHolder(new SpanFinishingFilter()),
        "/*", EnumSet.of(DispatcherType.REQUEST));

    context.setAttribute(TRACER_ATTRIBUTE, mockTracer);
    context.setAttribute(CLIENT_ATTRIBUTE, client);
    context.setAttribute(SERVER_TRACING_FEATURE, serverTracingBuilder);
}
 

@Test
public void register() throws ServletException {
	initializer.onStartup(servletContext);

	assertEquals(1, servlets.size());
	assertNotNull(servlets.get(SERVLET_NAME));

	DispatcherServlet servlet = (DispatcherServlet) servlets.get(SERVLET_NAME);
	WebApplicationContext wac = servlet.getWebApplicationContext();
	((AnnotationConfigWebApplicationContext) wac).refresh();

	assertTrue(wac.containsBean("bean"));
	assertTrue(wac.getBean("bean") instanceof MyBean);

	assertEquals(1, servletRegistrations.size());
	assertNotNull(servletRegistrations.get(SERVLET_NAME));

	MockServletRegistration servletRegistration = servletRegistrations.get(SERVLET_NAME);

	assertEquals(Collections.singleton(SERVLET_MAPPING), servletRegistration.getMappings());
	assertEquals(1, servletRegistration.getLoadOnStartup());
	assertEquals(ROLE_NAME, servletRegistration.getRunAsRole());
	assertTrue(servletRegistration.isAsyncSupported());

	assertEquals(4, filterRegistrations.size());
	assertNotNull(filterRegistrations.get("hiddenHttpMethodFilter"));
	assertNotNull(filterRegistrations.get("delegatingFilterProxy"));
	assertNotNull(filterRegistrations.get("delegatingFilterProxy#0"));
	assertNotNull(filterRegistrations.get("delegatingFilterProxy#1"));

	for (MockFilterRegistration filterRegistration : filterRegistrations.values()) {
		assertTrue(filterRegistration.isAsyncSupported());
		EnumSet<DispatcherType> enumSet = EnumSet.of(DispatcherType.REQUEST, DispatcherType.FORWARD,
				DispatcherType.INCLUDE, DispatcherType.ASYNC);
		assertEquals(enumSet, filterRegistration.getMappings().get(SERVLET_NAME));
	}

}
 

@Override
protected void initTracing(ServletContextHandler context) {
    client.register(new Builder(mockTracer).build());

    ServerTracingDynamicFeature serverTracingBuilder =
            new ServerTracingDynamicFeature.Builder(mockTracer)
                    .build();
    context.addFilter(new FilterHolder(new SpanFinishingFilter()),
        "/*", EnumSet.of(DispatcherType.REQUEST));

    context.setAttribute(TRACER_ATTRIBUTE, mockTracer);
    context.setAttribute(CLIENT_ATTRIBUTE, client);
    context.setAttribute(SERVER_TRACING_FEATURE, serverTracingBuilder);
}
 

private void logRequest(HttpServletRequest request) {
	LogFormatUtils.traceDebug(logger, traceOn -> {
		String params;
		if (isEnableLoggingRequestDetails()) {
			params = request.getParameterMap().entrySet().stream()
					.map(entry -> entry.getKey() + ":" + Arrays.toString(entry.getValue()))
					.collect(Collectors.joining(", "));
		}
		else {
			params = (request.getParameterMap().isEmpty() ? "" : "masked");
		}

		String queryString = request.getQueryString();
		String queryClause = (StringUtils.hasLength(queryString) ? "?" + queryString : "");
		String dispatchType = (!request.getDispatcherType().equals(DispatcherType.REQUEST) ?
				"\"" + request.getDispatcherType().name() + "\" dispatch for " : "");
		String message = (dispatchType + request.getMethod() + " \"" + getRequestUri(request) +
				queryClause + "\", parameters={" + params + "}");

		if (traceOn) {
			List<String> values = Collections.list(request.getHeaderNames());
			String headers = values.size() > 0 ? "masked" : "";
			if (isEnableLoggingRequestDetails()) {
				headers = values.stream().map(name -> name + ":" + Collections.list(request.getHeaders(name)))
						.collect(Collectors.joining(", "));
			}
			return message + ", headers={" + headers + "} in DispatcherServlet '" + getServletName() + "'";
		}
		else {
			return message;
		}
	});
}
 

@Bean
    public FilterRegistrationBean createOpContextFilter(@Autowired OperationContext operationContext) {
        FilterRegistrationBean registration = new FilterRegistrationBean();
        registration.setFilter(new OpContextFilter(operationContext));
//        registration.setOrder(Ordered.HIGHEST_PRECEDENCE);
        registration.setDispatcherTypes(EnumSet.allOf(DispatcherType.class));
        return registration;
    }
 

@Override
public void onStartup(ServletContext servletContext) throws ServletException {

	/* Setting the configuration classes */
	AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
	context.setConfigLocation("qa.qcri.aidr.data.config");

	/*Configuring error handler filter for errors out isde the controllers
	FilterRegistration.Dynamic errorHandlerFilter = servletContext.addFilter("errorHandlerFilter", new ErrorHandlerFilter());
	errorHandlerFilter.addMappingForUrlPatterns(EnumSet.allOf(DispatcherType.class), true, "/*");
	*/
	FilterRegistration.Dynamic encodingFilter = servletContext.addFilter("encodingFilter", new org.springframework.web.filter.CharacterEncodingFilter());
	encodingFilter.addMappingForUrlPatterns(EnumSet.allOf(DispatcherType.class), true, "/*");
	encodingFilter.setInitParameter("encoding", "UTF-8");
	encodingFilter.setInitParameter("forceEncoding", "true");
	
	/* Adding context listener */
	servletContext.addListener(new ContextLoaderListener(context));
	
	/* Adding request listener */
	servletContext.addListener(new RequestContextListener());

	/* Configuring dispatcher servlet for spring mvc */
	/*CustomDispatcherServlet servlet = new CustomDispatcherServlet(context); */
	ServletRegistration.Dynamic appServlet = servletContext.addServlet("dispatcher", new DispatcherServlet(context));
	appServlet.setLoadOnStartup(1);
	appServlet.addMapping("/*");
}
 

@Override
public void onStartup(ServletContext servletContext) throws ServletException {
    if (env.getActiveProfiles().length != 0) {
        log.info("Web application configuration, using profiles: {}", (Object[]) env.getActiveProfiles());
    }
    EnumSet<DispatcherType> disps = EnumSet.of(DispatcherType.REQUEST, DispatcherType.FORWARD, DispatcherType.ASYNC);
    initMetrics(servletContext, disps);
    if (env.acceptsProfiles(JHipsterConstants.SPRING_PROFILE_PRODUCTION)) {
        initCachingHttpHeadersFilter(servletContext, disps);
    }
    log.info("Web application fully configured");
}