Example usage for org.springframework.web.servlet ModelAndView getViewName

List of usage examples for org.springframework.web.servlet ModelAndView getViewName

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Introduction

In this page you can find the example usage for org.springframework.web.servlet ModelAndView getViewName.

Prototype

@Nullable
public String getViewName()

Source Link

Document

Return the view name to be resolved by the DispatcherServlet via a ViewResolver, or null if we are using a View object.

Usage

From source file:ro.cs.cm.web.common.MultiFormBeanCheckingInterceptor.java

@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
        ModelAndView modelAndView) throws Exception {

    // at this point the controller has executed and returned a model so lets
    // go sort out what we need to do.
    String viewName = this.getViewName(modelAndView.getViewName());
    this.logger.debug("Post processing view: " + viewName);

    // Now get the vector for the view.
    Vector<K> controllerList = this.getControllers().get(viewName);
    if (controllerList == null) {
        this.logger.debug("View is not in list. Exiting.");
        return;/*from   w ww .ja v  a 2s.c om*/
    }

    // Loop and create the beans.
    String beanKey;
    String cmdName;
    Object cmdBean;
    Class cmdClass;
    boolean sessionBeanFound;
    boolean modelBeanFound;
    for (K c : controllerList) {

        cmdName = c.getCommandName();
        cmdClass = c.getCommandClass();
        beanKey = c.getClass().getName() + ".FORM." + cmdName;

        Map<String, Object> model = modelAndView.getModel();

        //Look for an establish bean we can use.
        sessionBeanFound = request.getSession().getAttribute(beanKey) != null;
        modelBeanFound = model.containsKey(cmdName);

        //Try and get a reference to an established bean using either
        //the session bean or model bean. Otherwise create a new one.
        if (sessionBeanFound) {
            this.logger.debug("Bean present under id:" + beanKey);
            cmdBean = request.getSession().getAttribute(beanKey);
        } else if (modelBeanFound) {
            this.logger.debug("Bean present in model.");
            cmdBean = model.get(cmdName);
        } else {
            this.logger.debug("Creating new bean.");
            cmdBean = cmdClass.newInstance();
        }

        //Now put the bean in session and model if not already there.
        request.getSession().setAttribute(beanKey, cmdBean);
        model.put(cmdName, cmdBean);

    }

    // Done, call the parent.
    super.postHandle(request, response, handler, modelAndView);
}