Examples of javax.servlet.ServletResponse

javax.servlet.ServletResponse
Base response interface definition. @author Rick Knowles

    public void doFilter(ServletRequest request, ServletResponse response)
        throws IOException, ServletException {


        if( Globals.IS_SECURITY_ENABLED ) {
            final ServletRequest req = request;
            final ServletResponse res = response;
            try {
                java.security.AccessController.doPrivileged(
                    new java.security.PrivilegedExceptionAction() {
                        public Object run() 
                            throws ServletException, IOException {

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                support.fireInstanceEvent(InstanceEvent.BEFORE_FILTER_EVENT,
                                          filter, request, response);
                
                if( Globals.IS_SECURITY_ENABLED ) {
                    final ServletRequest req = request;
                    final ServletResponse res = response;
                    Principal principal = 
                        ((HttpServletRequest) req).getUserPrincipal();


                    Object[] args = new Object[]{req, res, this};
                    SecurityUtil.doAsPrivilege
                        ("doFilter", filter, classType, args);
                    
                    args = null;
                } else {  
                    filter.doFilter(request, response, this);
                }


                support.fireInstanceEvent(InstanceEvent.AFTER_FILTER_EVENT,
                                          filter, request, response);
            } catch (IOException e) {
                if (filter != null)
                    support.fireInstanceEvent(InstanceEvent.AFTER_FILTER_EVENT,
                                              filter, request, response, e);
                throw e;
            } catch (ServletException e) {
                if (filter != null)
                    support.fireInstanceEvent(InstanceEvent.AFTER_FILTER_EVENT,
                                              filter, request, response, e);
                throw e;
            } catch (RuntimeException e) {
                if (filter != null)
                    support.fireInstanceEvent(InstanceEvent.AFTER_FILTER_EVENT,
                                              filter, request, response, e);
                throw e;
            } catch (Throwable e) {
                if (filter != null)
                    support.fireInstanceEvent(InstanceEvent.AFTER_FILTER_EVENT,
                                              filter, request, response, e);
                throw new ServletException
                  (sm.getString("filterChain.filter"), e);
            }
            return;
        }


        // We fell off the end of the chain -- call the servlet instance
        try {
            if (Globals.STRICT_SERVLET_COMPLIANCE) {
                lastServicedRequest.set(request);
                lastServicedResponse.set(response);
            }


            support.fireInstanceEvent(InstanceEvent.BEFORE_SERVICE_EVENT,
                                      servlet, request, response);
            if ((request instanceof HttpServletRequest) &&
                (response instanceof HttpServletResponse)) {
                    
                if( Globals.IS_SECURITY_ENABLED ) {
                    final ServletRequest req = request;
                    final ServletResponse res = response;
                    Principal principal = 
                        ((HttpServletRequest) req).getUserPrincipal();
                    Object[] args = new Object[]{req, res};
                    SecurityUtil.doAsPrivilege("service",
                                               servlet,

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      String encoding;
      // Depends if we talk about servlets, portlets, ...
      if (extContext.getRequest() instanceof ServletRequest) {
        ServletRequest request = (ServletRequest) extContext
            .getRequest();
        ServletResponse response = (ServletResponse) extContext
            .getResponse();
        // Setup encoding and content type
        String contentType = "text/xml";
        // get the encoding - must be setup by faces context or filter.
        encoding = request.getCharacterEncoding();
        if (encoding == null) {
          encoding = "UTF-8";
        }
        response.setContentType(contentType + ";charset=" + encoding);
      } else
        encoding = "UTF-8";


      PrintWriter servletWriter;
        servletWriter = getWriter(extContext);

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            return;
        }


        ExternalContext extContext = context.getExternalContext();
        ServletRequest request = (ServletRequest) extContext.getRequest();
        ServletResponse response = (ServletResponse) extContext.getResponse();


        try {
            if (executePageToBuildView(context, viewToRender)) {
                response.flushBuffer();
                ApplicationAssociate associate = getAssociate(context);
                if (associate != null) {
                    associate.responseRendered();
                }
                return;
            }
        } catch (IOException e) {
            throw new FacesException(e);
        }


        if (logger.isLoggable(Level.FINE)) {
            logger.log(Level.FINE, "Completed building view for : \n" +
                    viewToRender.getViewId());
        }


        // set up the ResponseWriter


        RenderKitFactory renderFactory = (RenderKitFactory)
        FactoryFinder.getFactory(FactoryFinder.RENDER_KIT_FACTORY);
        RenderKit renderKit =
                renderFactory.getRenderKit(context, viewToRender.getRenderKitId());


        ResponseWriter oldWriter = context.getResponseWriter();


        if (bufSize == -1) {
            WebConfiguration webConfig =
                  WebConfiguration
                        .getInstance(context.getExternalContext());
            try {
                bufSize = Integer
                      .parseInt(webConfig.getOptionValue(
                            WebContextInitParameter.ResponseBufferSize));
            } catch (NumberFormatException nfe) {
                bufSize = Integer
                      .parseInt(WebContextInitParameter.ResponseBufferSize.getDefaultValue());
            }
        }




        WriteBehindStateWriter stateWriter =
              new WriteBehindStateWriter(response.getWriter(),
                                         context,
                                         bufSize);
        ResponseWriter newWriter;
        if (null != oldWriter) {
            newWriter = oldWriter.cloneWithWriter(stateWriter);
        } else {
            newWriter = renderKit.createResponseWriter(stateWriter,
                                                       null,
                                                       request.getCharacterEncoding());
        }
        context.setResponseWriter(newWriter);


        newWriter.startDocument();


        doRenderView(context, viewToRender);


        newWriter.endDocument();


        // replace markers in the body content and write it to response.


        // flush directly to the response
        if (stateWriter.stateWritten()) {
            stateWriter.flushToWriter();
        }


        // clear the ThreadLocal reference.
        stateWriter.release();


        if (null != oldWriter) {
            context.setResponseWriter(oldWriter);
        }


        // write any AFTER_VIEW_CONTENT to the response
        // side effect: AFTER_VIEW_CONTENT removed
        ViewHandlerResponseWrapper wrapper = (ViewHandlerResponseWrapper)
              RequestStateManager.remove(context, RequestStateManager.AFTER_VIEW_CONTENT);
        if (null != wrapper) {
            wrapper.flushToWriter(response.getWriter(),
                    response.getCharacterEncoding());
        }


        response.flushBuffer();


    }

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    @Override
    protected Integer servePage(final HttpServerExchange exchange, final String location) {
        final ServletRequestContext servletRequestContext = exchange.getAttachment(ServletRequestContext.ATTACHMENT_KEY);
        ServletRequest req = servletRequestContext.getServletRequest();
        ServletResponse resp = servletRequestContext.getServletResponse();
        RequestDispatcher disp = req.getRequestDispatcher(location);
        exchange.setRequestMethod(Methods.GET); //TODO: is this correct?
        try {
            disp.forward(req, resp);
        } catch (ServletException e) {

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            }
        }
        response.resetBuffer();


        final ServletRequest oldRequest = servletRequestContext.getServletRequest();
        final ServletResponse oldResponse = servletRequestContext.getServletResponse();


        Map<String, Deque<String>> queryParameters = requestImpl.getQueryParameters();


        if (!named) {

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                }
            }
        }


        final ServletRequest oldRequest = servletRequestContext.getServletRequest();
        final ServletResponse oldResponse = servletRequestContext.getServletResponse();


        Object requestUri = null;
        Object contextPath = null;
        Object servletPath = null;
        Object pathInfo = null;

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                }
            }
        }


        final ServletRequest oldRequest = servletRequestContext.getServletRequest();
        final ServletResponse oldResponse = servletRequestContext.getServletResponse();
        servletRequestContext.setDispatcherType(DispatcherType.ERROR);


        //only update if this is the first forward
        requestImpl.setAttribute(ERROR_REQUEST_URI, requestImpl.getRequestURI());
        requestImpl.setAttribute(ERROR_SERVLET_NAME, servletName);

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  public HttpServletResponse getResponse() {
    return response;
  }
  
  protected HttpServletResponse getUnwrappedResponse() {
    ServletResponse result = response;
    while (result instanceof ServletResponseWrapper) {
      result = ((ServletResponseWrapper) result).getResponse();
    }
    return (HttpServletResponse) result;
  }

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                           ValveContext context)
        throws IOException, ServletException {


        // Default to deny request if property is null
        if (property == null) {
            ServletResponse sres = response.getResponse();
            if (sres instanceof HttpServletResponse) {
                HttpServletResponse hres = (HttpServletResponse) sres;
                hres.sendError(HttpServletResponse.SC_FORBIDDEN);
            }
            Exception e = new IllegalArgumentException();
            getContainer().getLogger().log(e,"Request Denied, no property to filter on");
            return;
        }


        
        // Create local RE since RE is not thread safe
        RE re = new RE();
        
        // Check the deny patterns, if any
        for (int i = 0; i < denies.length; i++) {
            re.setProgram(denies[i]);
            if (re.match(property)) {
                ServletResponse sres = response.getResponse();
                if (sres instanceof HttpServletResponse) {
                    HttpServletResponse hres = (HttpServletResponse) sres;
                    hres.sendError(HttpServletResponse.SC_FORBIDDEN);
                    return;
                }
            }
        }


        // Check the allow patterns, if any
        for (int i = 0; i < allows.length; i++) {
            re.setProgram(allows[i]);
            if (re.match(property)) {
                context.invokeNext(request, response);
                return;
            }
        }


        // Allow if denies specified but not allows
        if ((denies.length > 0) && (allows.length == 0)) {
            context.invokeNext(request, response);
            return;
        }


        // Deny this request
        ServletResponse sres = response.getResponse();
        if (sres instanceof HttpServletResponse) {
            HttpServletResponse hres = (HttpServletResponse) sres;
            hres.sendError(HttpServletResponse.SC_FORBIDDEN);
            return;
        }

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