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From "Frank Ittermann (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CXF-1730) The Exception handling if it is thrown from a RequestHandler is not correct i guess.
Date Wed, 27 Aug 2008 12:17:44 GMT

    [ https://issues.apache.org/jira/browse/CXF-1730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12626089#action_12626089
] 

Frank Ittermann commented on CXF-1730:
--------------------------------------

Hello again,

how was your holiday?

First of all now it works. I've downloaded the 2.1.2 version and now it works. So thanks for
your help.

Here a little piece of sample code for my RequestHandler implementation.

import javax.ws.rs.core.Response;

import org.apache.cxf.jaxrs.ext.RequestHandler;
import org.apache.cxf.jaxrs.model.ClassResourceInfo;
import org.apache.cxf.jaxrs.model.OperationResourceInfo;
import org.apache.cxf.message.Message;

public class TestRequestHanler implements RequestHandler {

    public Response handleRequest(Message message, ClassResourceInfo resourceClass) {

        OperationResourceInfo ori = message.getExchange().get(OperationResourceInfo.class);
        // no resource method was found for incoming request
        if (ori == null) {
            return null;
        }
        // do some stuff with the ori variable get meta information something like that
        
        throw new RuntimeException("access denied");
//        return null;
    }
}
go on with your great work.

> The Exception handling if it is thrown from a RequestHandler is not correct i guess.
> ------------------------------------------------------------------------------------
>
>                 Key: CXF-1730
>                 URL: https://issues.apache.org/jira/browse/CXF-1730
>             Project: CXF
>          Issue Type: Bug
>          Components: REST
>    Affects Versions: 2.1.2
>         Environment: Windows XP,  jdk1.6, Apache Tomcat 6.0.16
>            Reporter: Frank Ittermann
>
> Hello again
> i' ve used an implementation of RequestHandler to perform authentication stuff. So
> if the Authentication failed a RuntimeException is thrown.  I've also wrote a ExceptionMapper
implementation to transform occurred Exception into Http Status codes. If the RuntimeException
from the Authentication was thrown than this is translated to an HTTP 403 status code.
> But this Http status code is not send as response. This sends a 200 status code. After
a time of debugging i found the code that is responsible for that. The processResponse method
of the org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor work not correct is guess. Because
code with the following code block this methods ends.
> OperationResourceInfo operation = (OperationResourceInfo)exchange.get(OperationResourceInfo.class
>             .getName());
>         if (operation == null) {
>             return;
>         }
> because the operation variable is null. The code after this is responsible to but the
Response from the ExceptionMapper class into the message object so that i received a 403 http
status code.
> I've searched the code again and i found the code block how put the OperationResourceInfo
into the Exchange object. That is done by the processRequest method of the org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor
class. But before the OperationResourceInfo object is putted in the registered ResourceHandler
are called see the code block below.
>  for (ProviderInfo<RequestHandler> sh : shs) {
>             Response response = sh.getProvider().handleRequest(message, resource);
>             if (response != null) {
>                 message.getExchange().put(Response.class, response);
>                 return;
>             }
>         }
> I guess the code how put in the OperationresourceInfo object could be performed before
the RequestHandlers are called maybe? 
> Or it's forbidden to throw a Runtimeexception inside the RequestHandler ?
> I've also tried to return an Response object from the RequestHandler but the effect was
the same it never arrives the client. It received also the Response object with http code
200.
> The CXF framework is great and very flexible good work. The opportunities to register
own code is very great.
> Good work.

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