RE: how to set different render kit other than default

Jiri Zaloudek Mon, 30 May 2005 05:05:07 -0700

Hi,

it isn't problem if you can use only WML renderkit in your application. Add this code to faces-config.xml:

<application>
<default-render-kit-id>WML_BASIC</default-render-kit-id>
</application>

Problem is if you can use HTML and WML renderkit together. Standard ViewHandler support only one RenderKit - in this JSF version. So you must create(replace) standard ViewHandler.

In my diploma work I have defined URL mapping *.jsf for HTML pages and *.jsfw mappings for WML pages. The ViewHandler then can set right RenderKit from request URL.

My ViewHander source code:

public class WapViewHandlerImpl extends org.apache.myfaces.application.jsp.JspViewHandlerImpl {
    private static Log log = LogFactory.getLog(WapViewHandlerImpl.class);
    private static final String WML_RENDERKIT_PARAM = "WML_RenderKit";
    private static final String WML_MAPPING = "WML_Mapping";

    /** Creates a new instance of WapViewHandlerImpl */
    public WapViewHandlerImpl() {
    }

    /** Gets RenderKit's name and mapping from init configuration.
     * @return if request url containts this mapping then return specified renderkit.
     * Otherwise delegates calculating RenderKit to the org.apache.myfaces.application.jsp.JspViewHandlerImpl
     */
    public String calculateRenderKitId(FacesContext facesContext) {
        String renderKit = facesContext.getExternalContext().getInitParameter(WML_RENDERKIT_PARAM);
        String mapping = facesContext.getExternalContext().getInitParameter(WML_MAPPING);

        if (containtMapping(facesContext, mapping))
            return(renderKit);
        else
            return(super.calculateRenderKitId(facesContext));
    }

    private boolean containtMapping(FacesContext facesContext, String mapping){
        HttpServletRequest req = (HttpServletRequest)facesContext.getExternalContext().getRequest();
        return(req.getRequestURI().indexOf(mapping) != -1);
    }

}

To config this ViewHandler as a defautl - add this code to faces-config:

<application>
<view-handler>org.apache.myfaces.wap.webapp.WapViewHandlerImpl</view-handler>
</application>

And the last step is define mappings and set second RenderKit in web.xml:

<context-param>
    <description>Sets renderkit name for wml pages</description>
    <param-name>WML_RenderKit</param-name>
    <param-value>WML_BASIC</param-value>
</context-param>
<context-param>
    <description>Sets mapping for wml pages</description>
    <param-name>WML_Mapping</param-name>
    <param-value>.jsfw</param-value>
</context-param>

<servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.jsf</url-pattern>
</servlet-mapping>

<servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.jsfw</url-pattern>
</servlet-mapping>

Regards,

Jiri Zaloudek

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Monday, May 30, 2005 10:33 AM
To: [email protected]
Subject: how to set different render kit other than default

Hi,

How can I set other renderer kits other than HTML. Suppose if I want to call JSF app from a mobile. How will I configure a separate renderer for this type of clients.

Regards,

Ramesh

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RE: how to set different render kit other than default

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