PrimeFaces 3.0M4 fileUpload doesn't fire after Login - jsf

Question

After a lot of effort I got PrimeFaces 3.0M4 working on Tomcat 7.0.2 with Mojarra 2.1.3. The upload bean fires if I present the upload feature before login but doesn't fire if I login and then come for the file upload.
My filter definition is as follows:
<filter>
<filter-name>PrimeFaces FileUpload Filter</filter-name>
<filter-class>org.primefaces.webapp.filter.FileUploadFilter</filter-class>
<init-param>
<param-name>thresholdSize</param-name>
<param-value>2097152</param-value>
</init-param>
<init-param>
<param-name>uploadDirectory</param-name>
<param-value>c:\temp\</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>PrimeFaces FileUpload Filter</filter-name>
<servlet-name>Faces Servlet</servlet-name>
</filter-mapping>
<!-- Faces Servlet -->
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- Faces Servlet Mapping -->
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
<url-pattern>*.xhtml</url-pattern>
</servlet-mapping>
The login returns to the same page that holds the upload component. Infact I have two forms in the same Facelet defined as follows:
<h:form id = "loginForm">
<h:panelGrid columns="6" rendered="#{loginBean.loginSectionVisible}">
<h:messages errorClass="errorMessage" infoClass="infoMessage"
warnClass="warnMessage"></h:messages>
<h:outputText value="Username : "></h:outputText>
<h:inputText id="username" value="#{loginBean.username}"></h:inputText>
<h:outputText value="Password : "></h:outputText>
<h:inputSecret id="password" value="#{loginBean.password}"></h:inputSecret>
<h:commandButton value="Submit" action="#{loginBean.login}" type="submit"></h:commandButton>
</h:panelGrid>
</h:form>
<h:panelGrid columns="1" rendered="#{loginBean.uploadSectionVisible}">
<h:form enctype="multipart/form-data" prependId="false">
<p:fileUpload fileUploadListener="#{fileUploadBean.handleFileUpload}"
mode="advanced"
update="messages"
sizeLimit="100000"
allowTypes="/(\.|\/)(gif|jpe?g|png)$/"/>
<p:growl id="messages" showDetail="true"/>
</h:form>
I am almost certain that it has something to with the Filter. Any ideas? Would be much appreciated.

Answer 1

<h:panelGrid columns="1" rendered="#{loginBean.uploadSectionVisible}">
<h:form enctype="multipart/form-data" prependId="false">
Whether the upload form is processed depends on the outcome of #{loginBean.uploadSectionVisible} which you have there in the rendered attribute of a parent component. You seem to be requiring that the user is logged in in order to display the upload form. It will work if the #{loginBean} is in the session scope and you aren't doing any business logic in the getter method. But it will fail if the #{loginBean} is in request scope and/or you are doing the business logic based on request parameters.
You need to represent the logged-in user by a separate managed bean which is put in the session scope and fix the rendered attributes something like follows where #{user} is the session scoped bean representing the logged-in user:
<h:form ... rendered="#{not user.loggedIn}">
...
<h:commandButton action="#{login.submit}" ... />
</h:form>
<h:form ... rendered="#{user.loggedIn}">
<p:fileUpload fileUploadListener="#{upload.handle}" ... />
</h:form>
See also:
commandButton/commandLink/ajax action/listener method not invoked or input value not updated