Liferay portlet (with JSF) - pass parameter from one bean to another during redirect

Question

I need to pass one parameter (packageId) from one portlet's managed bean (I will call it beanA , with ViewScoped) where I do redirect:

    LiferayPortletURL url = PortletURLFactoryUtil.create(portletRequest,
            PortalUtil.getPortletId(portletRequest), themeDisplay
                    .getLayout().getPlid(), PortletRequest.ACTION_PHASE);   

    url.setParameter("_facesViewIdRender", "/views/esbDeployerView.xhtml");
    url.setParameter("packageId", doc.getId());
    url.setWindowState(WindowState.NORMAL);
    url.setPortletMode(PortletMode.VIEW);
    FacesContext.getCurrentInstance().getExternalContext().redirect(url.toString());

to another ( beanB with ViewScoped) which is invoked by EL (a have a datatable there and call #{esbPackageDetail.services}) in esbDeployerView.xhtml after redirect). beanB is correctly created after redirect but when I try to set a breakpoint in on @PostConstruct method, the parameter value is null.

    HttpServletRequest request = PortalUtil.getHttpServletRequest((PortletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest());
    HttpServletRequest oriRequest = PortalUtil.getOriginalServletRequest(request);
    String esbArchiveId = oriRequest.getParameter("packageId");

I have tried also this but the parameter is null again:

    LiferayFacesContext liferayFacesContext = LiferayFacesContext.getInstance();
    String hallo = liferayFacesContext.getRequestQueryStringParameter("packageId");     

EDIT:

I also tried this:

    boolean parameter = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap().containsKey("packageId"); 
    boolean parametervalue = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap().containsKey("cee43b8b-3719-4463-b317-e6fde80707c5");

both results are false...

Answer 1

I finally figured it out! The problem was in first step. It is necessary to set up PortletRequest to PortletRequest.RENDER_PHASE to keep a parameter alive during redirect. Then I was able to read it like:

    HttpServletRequest request = PortalUtil.getHttpServletRequest((PortletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest());
    String arumArchiveId = ParamUtil.getString(request, "packageId");   

@Parkash Kumar Thank you for your help anyway.

Answer 2

This might work in your case:

Code sample from where you want to redirect:

String redirectURL = "public / private group" + "page_name" + "?packageId=" + doc.getId();
FacesContext.getCurrentInstance().getExternalContext().redirect(redirectURL);

Code sample to get parameter:

ExternalContext externalContext = FacesContext.getCurrentInstance().getExternalContext();
HttpServletRequest httpServletRequest = (HttpServletRequest) (externalContext.getRequestMap().get("com.liferay.portal.kernel.servlet.PortletServletRequest"));
PortletRequest portletRequest = (PortletRequest) httpServletRequest.getAttribute("javax.portlet.request");

String packageId = null;
HttpServletRequest httpRequest = null;
if(portletRequest != null){
    httpRequest = PortalUtil.getOriginalServletRequest(PortalUtil.getHttpServletRequest(portletRequest));
    packageId = httpRequest.getParameter("packageId");
}