Examples of javax.servlet.ServletResponse

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


    @Override
    public void doFilter(ServletRequest request, ServletResponse response,
            FilterChain chain) throws IOException, ServletException {


        ServletResponse wResponse = null;
        
        if (request instanceof HttpServletRequest &&
                response instanceof HttpServletResponse) {
            
            HttpServletRequest req = (HttpServletRequest) request;

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            //-----------------------------------------------
            // Call other filters and eventually the Servlet
            // Update the response with our XSRF FORM protection code
            //-----------------------------------------------
            String replacement = xsrf.getReplacement(hreq);
            ServletResponse whres = response;
            if (replacement != null ) {
                whres = new SubstituteResponseWrapper((HttpServletResponse)response, replacement);
            }
            chain.doFilter(hreq, whres);
        }

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        // given
        final FilterChain chain = mock( FilterChain.class );
        final InOrder inOrder = inOrder( persistenceUnitsContainer, chain );


        final ServletRequest request = mock( ServletRequest.class );
        final ServletResponse response = mock( ServletResponse.class );


        // when
        sut.doFilter( request, response, chain );


        // then

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        // given
        final FilterChain chain = mock( FilterChain.class );
        final InOrder inOrder = inOrder( persistenceUnitsContainer, chain );


        final ServletRequest request = mock( ServletRequest.class );
        final ServletResponse response = mock( ServletResponse.class );


        doThrow( new RuntimeException() ).when( chain ).doFilter( request, response );


        // when
        try

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        }


        // Check to see if a Filter, Valve of wrapper has written some content.
        // If it has, disable range requests and setting of a content length
        // since neither can be done reliably.
        ServletResponse r = response;
        long contentWritten = 0;
        while (r instanceof ServletResponseWrapper) {
            r = ((ServletResponseWrapper) r).getResponse();
        }
        if (r instanceof ResponseFacade) {

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  public String downloadLogFile() throws IOException {
      AppenderModel appender = (AppenderModel) currentAppender.getValue();
      String fileName = appender.getFile();
      FileInputStream stream = new FileInputStream(fileName);
      FacesContext facesContext = FacesContext.getCurrentInstance();
      ServletResponse response = (ServletResponse) facesContext.getExternalContext().getResponse();
      response.setContentType("text/plain");
      IOUtils.copy(stream, response.getOutputStream());
      facesContext.responseComplete();
      return null;
  }

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        ErrorPage errorPage = findErrorPage(context, realError);


        if (errorPage != null) {
            response.setAppCommitted(false);
            ServletRequest sreq = request.getRequest();
            ServletResponse sresp = response.getResponse();
            sreq.setAttribute
                (ApplicationFilterFactory.DISPATCHER_REQUEST_PATH_ATTR,
                 errorPage.getLocation());
            sreq.setAttribute(ApplicationFilterFactory.DISPATCHER_TYPE_ATTR,
                              new Integer(ApplicationFilterFactory.ERROR));
            sreq.setAttribute
                (Globals.STATUS_CODE_ATTR,
                 new Integer(HttpServletResponse.SC_INTERNAL_SERVER_ERROR));
            sreq.setAttribute(Globals.ERROR_MESSAGE_ATTR,
                              throwable.getMessage());
            sreq.setAttribute(Globals.EXCEPTION_ATTR,
                              realError);
            Wrapper wrapper = request.getWrapper();
            if (wrapper != null)
                sreq.setAttribute(Globals.SERVLET_NAME_ATTR,
                                  wrapper.getName());
            if (sreq instanceof HttpServletRequest)
                sreq.setAttribute(Globals.EXCEPTION_PAGE_ATTR,
                                  ((HttpServletRequest) sreq).getRequestURI());
            sreq.setAttribute(Globals.EXCEPTION_TYPE_ATTR,
                              realError.getClass());
            if (custom(request, response, errorPage)) {
                try {
                    sresp.flushBuffer();
                } catch (IOException e) {
                    log("Exception Processing " + errorPage, e);
                }
            }
        } else {
            // A custom error-page has not been defined for the exception
            // that was thrown during request processing. Check if an
            // error-page for error code 500 was specified and if so, 
            // send that page back as the response.
            ServletResponse sresp = (ServletResponse) response;
            if (sresp instanceof HttpServletResponse) {
                ((HttpServletResponse) sresp).setStatus(
                    HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
                // The response is an error
                response.setError();

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        ErrorPage errorPage = context.findErrorPage(statusCode);
        if (errorPage != null) {
            response.setAppCommitted(false);
            ServletRequest sreq = request.getRequest();
            ServletResponse sresp = response.getResponse();
            sreq.setAttribute(Globals.STATUS_CODE_ATTR,
                              new Integer(statusCode));
            sreq.setAttribute(Globals.ERROR_MESSAGE_ATTR, message);
            sreq.setAttribute
                (ApplicationFilterFactory.DISPATCHER_REQUEST_PATH_ATTR,
                 errorPage.getLocation());
            sreq.setAttribute(ApplicationFilterFactory.DISPATCHER_TYPE_ATTR,
                              new Integer(ApplicationFilterFactory.ERROR));
            
             
            Wrapper wrapper = request.getWrapper();
            if (wrapper != null)
                sreq.setAttribute(Globals.SERVLET_NAME_ATTR,
                                  wrapper.getName());
            if (sreq instanceof HttpServletRequest)
                sreq.setAttribute(Globals.EXCEPTION_PAGE_ATTR,
                                  ((HttpServletRequest) sreq).getRequestURI());
            if (custom(request, response, errorPage)) {
                try {
                    sresp.flushBuffer();
                } catch (IOException e) {
                    log("Exception Processing " + errorPage, e);
                }
            }
        }

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                           Throwable exception) {
        errorCount++;
        ServletRequest sreq = request.getRequest();
        sreq.setAttribute(Globals.EXCEPTION_ATTR, exception);


        ServletResponse sresponse = response.getResponse();
        if (sresponse instanceof HttpServletResponse)
            ((HttpServletResponse) sresponse).setStatus
                (HttpServletResponse.SC_INTERNAL_SERVER_ERROR);


    }

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        ServletRequest sreq = (ServletRequest) request;
        Throwable throwable =
            (Throwable) sreq.getAttribute(Globals.EXCEPTION_ATTR);


        ServletResponse sresp = (ServletResponse) response;
        if (sresp.isCommitted()) {
            return;
        }


        if (throwable != null) {


            // The response is an error
            response.setError();


            // Reset the response (if possible)
            try {
                sresp.reset();
            } catch (IllegalStateException e) {
                ;
            }


            ServletResponse sresponse = (ServletResponse) response;
            if (sresponse instanceof HttpServletResponse)
                ((HttpServletResponse) sresponse).sendError
                    (HttpServletResponse.SC_INTERNAL_SERVER_ERROR);


        }

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