Re: Redirect: Restoring Request Attributes

Posted by Si Chen-2 on Jul 21, 2006; 6:16pm
URL: http://ofbiz.116.s1.nabble.com/Redirect-Restoring-Request-Attributes-tp169984p169985.html

How do I replicate this bug you are reporting?

I am hoping that might solve the "Service invocation error: commit  
transaction failed" error messages as well, by the way, so I'd be  
happy to look through this with you.

Si


On Jul 21, 2006, at 10:13 AM, Vinay Agarwal wrote:

> Hello,
>
>
>
> My investigation of why my error messages (in request) are getting  
> lost
> during redirect, leads me to suspect that the request attribute  
> restore code
> may not be working as desired. Of  course, I may have totally  
> misunderstood
> it J.
>
>
>
> The way the code restores the request attributes is by copying them  
> into
> session attribute "_REQ_ATTR_MAP_". These attributes are put back into
> request after redirection in two places, ContextFilter.java (130) and
> RequestHandler.java (295).
>
>
>
> When a user request a url that will result in redirection, the  
> traced steps
> are as follows:
>
> 1.      ContextFilter (130),  session attribute "_REQ_ATTR_MAP_"  
> is null
>
> 2.      Code stores request attributes to session attribute  
> "_REQ_ATTR_MAP_"
> before calling response.sendRedirect
>
> 3.      RequestHandler (295), session attribute "_REQ_ATTR_MAP_"  
> contains
> all attributes
>
> 4.      Attributes are copied to request object correctly and session
> attribute "_REQ_ATTR_MAP_" is set to null
>
> 5.      ContextFilter (130),  session attribute "_REQ_ATTR_MAP_"  
> is null
> and request object does not contain any attributes copied in step 4.
>
> 6.      RequestHandler (295), session attribute "_REQ_ATTR_MAP_"  
> contains
> all attributes and request object does not contain any attributes  
> copied in
> step 4.
>
>
>
> As seen from steps 5 and 6, all request attributes copied in step 4  
> are
> lost. I would appreciate any help in resolving it. Thanks in advance.
>
>
>
> Regards,
>
> Vinay Agarwal
>
>
>