Java FacesContext.renderResponse方法代码示例

import javax.faces.context.FacesContext; //导入方法依赖的package包/类
/**
 * This method sets the phaseID of the event
 * according to the "immediate" property of this
 * component.
 * If "immediate" is set to true, this calls
 * {@link FacesContext#renderResponse}
 */
static void __handleQueueEvent(UIComponent comp, FacesEvent event)
{
  if (_isImmediateEvent(comp, event))
  {
    String immediateAttr = UIXTree.IMMEDIATE_KEY.getName();
    Object isImmediate = comp.getAttributes().get(immediateAttr);
    if (Boolean.TRUE.equals(isImmediate))
    {
      event.setPhaseId(PhaseId.ANY_PHASE);
      FacesContext context = FacesContext.getCurrentInstance();
      context.renderResponse();
    }
    else
    {
      // the event should not execute before model updates are done. 
      // otherwise, the updates will be done to the wrong rows.

      // we can't do this at the end of the UPDATE_MODEL phase because
      // if there are errors during that phase, then we want to immediately render
      // the response, and not deliver this ui event:
      event.setPhaseId(PhaseId.INVOKE_APPLICATION);
    }
  }
}
 

import javax.faces.context.FacesContext; //导入方法依赖的package包/类
/**
 * Executes validation logic.
 */
private void _executeValidate(FacesContext context)
{
  Application application = context.getApplication();
  application.publishEvent(context, PreValidateEvent.class, UIComponent.class, this);
  try
  {
    validate(context);
  }
  catch (RuntimeException e)
  {
    context.renderResponse();
    throw e;
  }
  finally
  {
    application.publishEvent(context, PostValidateEvent.class, UIComponent.class, this);
  }

  if (!isValid())
  {
    context.renderResponse();
  }
}
 

import javax.faces.context.FacesContext; //导入方法依赖的package包/类
private void handleViewExpiredException(ViewExpiredException vee) {
    LOG.log(Level.INFO, " handling viewExpiredException...");
    FacesContext context = FacesContext.getCurrentInstance();
    String viewId = vee.getViewId();
    LOG.log(Level.INFO, "view id @" + viewId);
    NavigationHandler nav
            = context.getApplication().getNavigationHandler();
    nav.handleNavigation(context, null, viewId);
    context.renderResponse();
}
 

import javax.faces.context.FacesContext; //导入方法依赖的package包/类
private void handleNotFoundException(Exception e) {
    LOG.log(Level.INFO, "handling exception:...");
    FacesContext context = FacesContext.getCurrentInstance();
    String viewId = "/error.xhtml";
    LOG.log(Level.INFO, "view id @" + viewId);
    NavigationHandler nav
            = context.getApplication().getNavigationHandler();
    nav.handleNavigation(context, null, viewId);
    context.getViewRoot().getViewMap(true).put("ex", e);
    context.renderResponse();
}
 

import javax.faces.context.FacesContext; //导入方法依赖的package包/类
@SuppressWarnings("unchecked")
@Override
protected void decode(
  FacesContext facesContext,
  UIComponent  component,
  @SuppressWarnings("unused")
  FacesBean    facesBean,
  String       clientId)
{
  Map<String, String> parameters =
    facesContext.getExternalContext().getRequestParameterMap();

  Object event = parameters.get(XhtmlConstants.EVENT_PARAM);

  // get the goto event parameter values and queue a RangeChangeEvent.
  if (XhtmlConstants.GOTO_EVENT.equals(event))
  {
    Object source = parameters.get(XhtmlConstants.SOURCE_PARAM);
    String id = clientId == null ? component.getClientId(facesContext) : clientId;
    if (id.equals(source))
    {
      UIXSelectRange choiceBar = (UIXSelectRange)component;
      Object valueParam = parameters.get(XhtmlConstants.VALUE_PARAM);
      RangeChangeEvent rce = _createRangeChangeEvent(choiceBar, valueParam);
      rce.queue();

      if (choiceBar.isImmediate())
        facesContext.renderResponse();

      RequestContext.getCurrentInstance().addPartialTarget(component);
    }
  }
}
 

import javax.faces.context.FacesContext; //导入方法依赖的package包/类
@SuppressWarnings("unchecked")
@Override
protected void decode(
  FacesContext facesContext,
  UIComponent  component,
  @SuppressWarnings("unused")
  FacesBean    facesBean,
  String       clientId)
{
  Map<String, String> parameters =
    facesContext.getExternalContext().getRequestParameterMap();

  Object event = parameters.get(XhtmlConstants.EVENT_PARAM);
  if (XhtmlConstants.POLL_EVENT.equals(event))
  {
    Object source = parameters.get(XhtmlConstants.SOURCE_PARAM);
    String id = clientId == null ? component.getClientId(facesContext) : clientId;

    if (id.equals(source))
    {
      // This component always uses PPR (unless not supported at all)
      PartialPageUtils.forcePartialRendering(facesContext);

      // And forcibly re-render ourselves - because that's how
      // we get the poll re-started
      RequestContext.getCurrentInstance().addPartialTarget(component);

      UIXPoll poll = (UIXPoll) component;
      (new PollEvent(component)).queue();
      if (poll.isImmediate())
        facesContext.renderResponse();
    }
  }
}
 

import javax.faces.context.FacesContext; //导入方法依赖的package包/类
@Override
public void processUpdates(FacesContext context)
{
  RequestContext requestContext = RequestContext.getCurrentInstance();
  requestContext.pushCurrentComponent(context, this);
  pushComponentToEL(context, this);
  try
  {
    // Skip processing if our rendered flag is false
    if (!isRendered())
      return;

    super.processUpdates(context);

    // Process this component itself
    updateModel(context);
  }
  finally
  {
    popComponentFromEL(context);
    requestContext.popCurrentComponent(context, this);
  }

  if (!isValid())
  {
    context.renderResponse();
  }
}
 

import javax.faces.context.FacesContext; //导入方法依赖的package包/类
/**
 * @param context
 * @param e
 * @throws Throwable
 */
private void goToErrorPage(FacesContext context, Throwable e) {
    HttpServletRequest request = (HttpServletRequest) context.getExternalContext().getRequest();
    request.setAttribute(ERROR_EXCEPTION + "_stacktrace", e);

    if (context.getCurrentPhaseId() == PhaseId.RENDER_RESPONSE) {
        throw new FacesException(e);
    }

    if (e instanceof FileNotFoundException) {
        logger.log(Level.WARNING,"File not found", e);
        throw new FacesException(e);
    }


    request.setAttribute(ERROR_EXCEPTION_TYPE, e.getClass().getName());
    request.setAttribute(ERROR_MESSAGE, e.getMessage());
    request.setAttribute(ERROR_REQUEST_URI, request.getHeader("Referer"));
    request.setAttribute(ERROR_STATUS_CODE, HttpServletResponse.SC_INTERNAL_SERVER_ERROR);

    String errorPage = findErrorPage(e);
    if (!has(errorPage)) {
        String errorPageParam = context.getExternalContext().getInitParameter(Constants.InitialParams.ERROR_PAGE);
        if (!has(errorPageParam)) {
            errorPage = Constants.DEFAULT_ERROR_PAGE;
        }
    }
    context.getApplication().getNavigationHandler().handleNavigation(context, null, errorPage);
    context.renderResponse();
}
 

import javax.faces.context.FacesContext; //导入方法依赖的package包/类
/**
 * @param context
 * @param e       application business exception
 */
private void handleBusinessException(FacesContext context, BusinessException e) {
    if (context.getCurrentPhaseId() == PhaseId.RENDER_RESPONSE) {
        throw new FacesException(e);
    }
    if (has(e.getExceptionList())) {
        for (BusinessException be : e.getExceptionList()) {
            addFacesMessage(be);
        }
    } else { //Single exception
        addFacesMessage(e);
    }
    validationFailed();
    context.renderResponse();
}