getPreferences with JSF portlet

[franco12]

Hi,

I'm trying to set a view and edit modes through two instances.

One instance has a parameter edit="true" et the other has the parameter edit="false"

I'd like to use those parameters to display different things using JSF

but i'm unable to get Preferences, here is my code to get these preferences :

protected void doView(RenderRequest request, RenderResponse response) throws PortletException, PortletSecurityException, IOException
 {
 response.setContentType("text/html");
 PortletPreferences prefs = request.getPreferences();
 String parameter = prefs.getValue("edit",init);
 if (parameter.equals("true"))
 {

 }
 else
 {

 }
 }

[franco12]

I forgot to say

thanks ^^
regards

[franco12]

The problem is that the program won't pass through 'doView'




MDP_contribution_consultation.java

import javax.portlet.PortletPreferences;
import javax.portlet.PortletSecurityException;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;
import javax.portlet.PortletException;
import java.io.IOException;

public class MDP_contribution_consultation
{
 String consulter="ok";
 String supprimer;
 private String init="false";

 protected void doView(RenderRequest request, RenderResponse response) throws PortletException, PortletSecurityException, IOException
 {
 response.setContentType("text/html");
 // StringBuffer html = new StringBuffer();
 // PrintWriter writer = response.getWriter();
 PortletPreferences prefs = request.getPreferences();
 String parameter = prefs.getValue("suppression_pref",init);
 if (parameter.equals("true"))
 {
 this.supprimer="ok";
 // html.append("<-- Contribution --><br/>");
 // html.append("<img src='/WEB-INF/images/logo.gif'/>");
 }
 else
 {
 this.supprimer="pas ok";
 // html.append("<-- Consultation --><br/>");
 }
 // response.getWriter().write(html.toString());
 // writer.close();
 }

 public String getConsulter()
 {
 return consulter;
 }

 public void setConsulter(String consulter)
 {
 this.consulter = consulter;
 }

 public String getSupprimer()
 {
 return supprimer;
 }

 public void setSupprimer(String supprimer)
 {
 this.supprimer = supprimer;
 }
}

view.jsp

<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>

<f:view>
 <div align="center">
 <h:panelGrid columns="3">
 <h:outputText value="NOM FICHE"/>
 <h:outputText value="CONSULTER"/>
 <h:outputText value="SUPPRIMER"/>
 <h:outputText value="fiche 1"/>
 <h:outputText value="#{MDP_contribution_consultation.consulter}"/>
 <h:outputText value="#{MDP_contribution_consultation.supprimer}"/>
 <h:outputText value="fiche 2"/>
 <h:outputText value="#{MDP_contribution_consultation.consulter}"/>
 <h:outputText value="#{MDP_contribution_consultation.supprimer}"/>
 <h:outputText value="fiche 3"/>
 <h:outputText value="#{MDP_contribution_consultation.consulter}"/>
 <h:outputText value="#{MDP_contribution_consultation.supprimer}"/>
 </h:panelGrid>
 <br/>
 </div>
</f:view>

sorry for the multiple posts
regards

[theute]

It doesn't look like a portlet to me, you are not extending GenericPortlet or anything else.

[franco12]

It doesn't look like a portlet to me, you are not extending GenericPortlet or anything else.

sorry I'm a noob,
what have I to do except adding "extends GenericPortlet" ?

Because now, I've having this error

Object not found mdpApp.MDP_contribution_consultation

thanks

[theute]

It looks like you didn't specify your XML descriptors correctly.

You should start from the HelloWorld portlet and extend it step by step:
http://labs.jboss.com/portal/portletswap/portlets_tutorial.html

[franco12]

It looks like you didn't specify your XML descriptors correctly.

You should start from the HelloWorld portlet and extend it step by step:
http://labs.jboss.com/portal/portletswap/portlets_tutorial.html

hu sorry,
I had to refresh anoter time
it's working without error

but the program won't pass through doView
i'd like to set supprimer="ok" if my parameter suppression_pref="true"
or supprimer="pas ok" if suppression_pref="false"

and then I display supprimer in my JSP

<h:outputText value="#{MDP_contribution_consultation.supprimer}"/>

thanks for your quick replies

[theute]

Oups sorry i replied too quickly i missed that you were working on a JSF portlet.

On a JSF portlet you don't need to extend GenericPortlet and render() won't be called.

You need to pass a JSF page as parameter in portlet.xml in getSupprimer() you should access the preferences like this:

public String getSupprimer() {
 PortletPreferences prefs = request.getPreferences();
 String parameter = prefs.getValue("suppression_pref",init);
 if (parameter.equals("true))
 {
 return "ok";
 }
 else
 {
 return "pas ok";
 }
}

[franco12]

ok thanks for your help Thomas :)

I removed "extends GenericPortlet" and the doView method
and I updated getSupprimer() like this

import javax.portlet.PortletPreferences;
import javax.portlet.PortletSecurityException;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;
import javax.portlet.PortletException;
import java.io.IOException;

public class MDP_contribution_consultation
{
 String consulter="ok";
 String supprimer;
 private String init="false";

 public String getConsulter()
 {
 return consulter;
 }

 public void setConsulter(String consulter)
 {
 this.consulter = consulter;
 }

 public String getSupprimer(RenderRequest request, RenderResponse response) throws PortletException, PortletSecurityException, IOException
 {
 PortletPreferences prefs = request.getPreferences();
 String parameter = prefs.getValue("edit",init);
 if (parameter.equals("true"))
 {
 return "ok";
 }
 else
 {
 return "pas ok";
 }
 }

 public void setSupprimer(String supprimer)
 {
 this.supprimer = supprimer;
 }
}

now I'm having this error

An error occured while rendering window 'default.MaPage.contrib'

org.apache.jasper.JasperException: Bean: MDP_contribution_consultation, property: supprimer

my portlet.xml has a jsp page as an init parameter, like this

<portlet-app version="1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://java.sun.com/xml/ns/portlet"
 xmlns="http://java.sun.com/xml/ns/portlet">
 <portlet>
 <portlet-name>MDP_contribution_consultation</portlet-name>
 <portlet-class>org.apache.myfaces.portlet.MyFacesGenericPortlet</portlet-class>
 <portlet-info>
 <title>MDP_contribution_consultation</title>
 </portlet-info>
 <init-param>
 <name>default-view</name>
 <value>/WEB-INF/jsp/view.jsp</value>
 </init-param>
 <init-param>
 <name>suppression_init</name>
 <value>false</value>
 </init-param>
 <portlet-preferences>
 <preference>
 <name>edit</name>
 <value>true</value>
 </preference>
 </portlet-preferences>
 <supports>
 <mime-type>text/html</mime-type>
 <portlet-mode>VIEW</portlet-mode>
 </supports>
 </portlet>
</portlet-app>

regards

[theute]

getSupprimer should have no parameter.
You can get the request from FacesContext.getExternalContext.getRequest();

[franco12]

did you mean
PortletPreferences prefs = FacesContextWrapper.getExternalContext.getRequest().getPreferences();

or

PortletPreferences prefs = FacesContextFactoryImpl.getExternalContext.getRequest().getPreferences();


FacesContext cannot be resolved

FacesContextWrapper or FacesContextFactoryImpl can't be resolved ("It is indirectly referenced from required .class files")

[theute]

I need to wake up...
I meant:
FacesContext.getCurrentInstance().getExternalContext().getRequest()

Then you can cast it to a PortletRequest.

FacesContext is part of the JSF public API.
http://java.sun.com/javaee/javaserverfaces/1.0/docs/api/javax/faces/context/FacesContext.html

[franco12]

sorry I don't get it :-s

FacesContext doesn't work alone
eclipse suggests me FacesContextWrapper or FacesContextFactoryImpl but not FacesContext alone

[theute]

Add the JSF API to Eclipse classpath then...

[franco12]

ok :)
first of all I'd like to say thank you for bearing with the n00b I am

ok now eclipse is ok with FacesContext

but now i'm facing to the 'cast' problem
by "casting to a PortletRequest", did you mean :
PortletRequest prefs = FacesContext.getCurrentInstance().getExternalContext().getRequest();
?

thanks