Examples of org.omnifaces.servlet.BufferedHttpServletResponse

org.omnifaces.servlet.BufferedHttpServletResponse
This HTTP servlet response implementation buffers the entire response body. The buffered response body is available as a byte array via the {@link #getBuffer()} method. Note that the buffered response writer will use same characterencoding as is been set on the response supplied to the constructor and that this way any {@link ServletResponse#setCharacterEncoding(String)} calls on the included JSP/Servlet resource have thus no effect. @author Bauke Scholtz @since 1.1


  @Override
  public void doFilter(HttpServletRequest request, HttpServletResponse response, HttpSession session, FilterChain chain) throws ServletException,
          IOException {


    BufferedHttpServletResponse bufferedResponse = new BufferedHttpServletResponse(response);


    // By default don't buffer, code has to activate this explicitly.
    bufferedResponse.setPassThrough(true);


    request.setAttribute(BUFFERED_RESPONSE, bufferedResponse);


    try {
      chain.doFilter(request, bufferedResponse);
    } finally {
      if (!bufferedResponse.isPassThrough()) {
        // TODO: output stream support
        response.getWriter().write(bufferedResponse.getBufferAsString());
      }
    }


  }

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    validateHasNoChildren(this);


    ExternalContext externalContext = context.getExternalContext();
    HttpServletRequest request = (HttpServletRequest) externalContext.getRequest();
    HttpServletResponse response = (HttpServletResponse) externalContext.getResponse();
    BufferedHttpServletResponse bufferedResponse = new BufferedHttpServletResponse(response);


    try {
      request.getRequestDispatcher((String) getAttributes().get("path")).include(request, bufferedResponse);
    }
    catch (ServletException e) {
      throw new FacesException(e);
    }


    context.getResponseWriter().write(bufferedResponse.getBufferAsString());
  }

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      @Override
      public void invoke() {


        if (!isDisabled() && isUseBuffer() && !hasCachedValue(context)) {


          final BufferedHttpServletResponse bufferedHttpServletResponse = getRequestAttribute(BUFFERED_RESPONSE);


          if (bufferedHttpServletResponse == null) {
            throw new IllegalStateException(ERROR_NO_BUFFERED_RESPONSE);
          }


          // Start buffering the response from now on
          bufferedHttpServletResponse.setPassThrough(false);


          // After the RENDER_RESPONSE phase, copy the area we need to cache from the response buffer
          // and insert it into our cache
          subscribeToRequestAfterPhase(RENDER_RESPONSE, new Callback.Void() {


            @Override
            public void invoke() {
              String content = null;


              try {
                content = getContentFromBuffer(bufferedHttpServletResponse.getBufferAsString());
              }
              catch (IOException e) {
                throw new IllegalStateException(e);
              }

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org.omnifaces.component.output.Cache

org.omnifaces.component.output.ResourceInclude

org.omnifaces.filter.OnDemandResponseBufferFilter

java.io.ByteArrayOutputStream

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