Re: No message body writer has been found error when using enum for request redirection

[Sergey Beryozkin]

Hi
On 19/02/13 15:13, SriramSundararajan01 wrote:
Hi,
I am using CXF 2.5.6 for REST webservices and following the example provided
in this link
http://cxf.apache.org/docs/jax-rs-redirection.html

to redirect the request. I tried both the ways described in the
documentation

1. Return a bean in method and add entries in the xml file as below

<bean id="dispatchProvider"
class="org.apache.cxf.jaxrs.provider.RequestDispatcherProvider">
       <property name="classResources">
           <map>
              <entry key="org.bar.Book"  value="/book.jsp"/>
           </map>
       </property>
       <property name="beanNames">
           <map>
              <entry key="org.bar.Book"  value="book"/>
           </map>
       </property>
</bean

This method worked for me without any issues

2. Return an ENUM in the method and specify the mapping for enum to jsp/html
file in the xml file. My example code is below
@Path(&quot;/redirect/&quot;)
        @GET
        @Produces(MediaType.TEXT_HTML)
        public Response redirect()  {   
                        DemoBean bean = new DemoBean();
             return Response.ok(RedirectionStatus.LOGIN_SUCCESS).build();
        }

XML file entry:

&lt;bean id=&quot;dispatchers&quot;
class=&quot;org.apache.cxf.jaxrs.provider.RequestDispatcherProvider&quot;>
          <property name="classResources">
             <map>
               <entry key="com.ms.test.rest.RedirectionStatus.LOGIN_SUCCESS"
value="/html/test.jsp"/>
             </map>
          </property>
</bean>

Register the provider:
<jaxrs:providers>
                <ref bean="dispatchers"/>
</jaxrs:providers>

ENUM class :
public enum RedirectionStatus {

        LOGIN_SUCCESS
}


When i use the 2nd type I always get an error "No message body writer has
been found for response class RedirectionStatus". I am running clueless on
what is happening and why I am getting this error.


I'm afraid the fix for supporting enums in RequestDispatcheProvider is 
not available in 2.5.6 - but is in 2.5.9 - can you try it instead please ?

Thanks, Sergey

My jsp file is outside web-inf folder. I tried even adding the CXF servlet
but no luck.

I tried enabling the CXF TRACE logging to see any additional log messages,
but I was unlucky there also. I gave the system property
org.apache.cxf.Logger=org.apache.cxf.common.logging.Log4jLogger and had the
log4j.xml in classpath with TRACE option. After this I saw some meesage from
Deferrable Alarm"[Deferrable Alarm : 2]
org.apache.cxf.common.logging.LogUtils  - Using
org.apache.cxf.common.logging.Log4jLogger for logging". No other messages in
log file too.


Can some one please guide me what I am doing wrong here?  I tried searching
the   blogs and internet but I am not able to get any break through.


Thanks,
Sriram



--
View this message in context: 
http://cxf.547215.n5.nabble.com/No-message-body-writer-has-been-found-error-when-using-enum-for-request-redirection-tp5723377.html
Sent from the cxf-user mailing list archive at Nabble.com.


--
Sergey Beryozkin

Talend Community Coders
http://coders.talend.com/

Blog: http://sberyozkin.blogspot.com