Supun Kamburugamuwa wrote:
>
>
> On Fri, Nov 20, 2009 at 3:36 AM, Supun Kamburugamuwa <[email protected]
> <mailto:[email protected]>> wrote:
>
>     At the moment there is no way of getting the request parameters as
>     message context properties. So do you think introducing a XPath
>     variable context is the right solution?
>
>
> I've done this and it works. But want to get your ideas weather this
> is the correct solution.
+1, there is a variable context introduced already for the synapse
XPath, what you need to do is to register a variable with that context.
I guess that is what you have done! So +1 for the approach.

Thanks,
Ruwan
>
> Supun..
>  
>
>
>     This brings me to another question. How about improving the XPath
>     support of Synapse to be an extension point of Synapse?
>
>     Thanks,
>     Supun..
>
>
>     On Thu, Nov 19, 2009 at 9:21 AM, Ruwan Linton <[email protected]
>     <mailto:[email protected]>> wrote:
>
>         Supun Kamburugamuwa wrote:
>         > Sorry they can be GET or POST
>         In that case it is a valid scenario, for GET requests all your
>         requirements can be achieved even now. For POST requests with URL
>         parameters in the request URL, URL re-write will be important.
>
>         Thanks,
>         Ruwan
>         >
>         > Thanks,
>         > Supun..
>         >
>         > On Wed, Nov 18, 2009 at 7:46 PM, Supun Kamburugamuwa
>         <[email protected] <mailto:[email protected]>
>         > <mailto:[email protected] <mailto:[email protected]>>> wrote:
>         >
>         >     Yes, they are GET requests.
>         >
>         >     Thanks,
>         >     Supun..
>         >
>         >
>         >     On Wed, Nov 18, 2009 at 5:46 PM, Ruwan Linton
>         <[email protected] <mailto:[email protected]>
>         >     <mailto:[email protected] <mailto:[email protected]>>> wrote:
>         >
>         >         Supun, is this a HTTP GET request??
>         >
>         >         Thanks,
>         >         Ruwan
>         >
>         >         Supun Kamburugamuwa wrote:
>         >         > Hi,
>         >         >
>         >         > I'll first explain the requirements.
>         >         >
>         >         > Lets say ESB get a URL like this.
>         >         >
>         >         >
>         >        
>         http://localhost:8280/services/Myproxy/mytest?test1=1&test2=2
>         <http://localhost:8280/services/Myproxy/mytest?test1=1&test2=2>
>         >        
>         <http://localhost:8280/services/Myproxy/mytest?test1=1&test2=2
>         <http://localhost:8280/services/Myproxy/mytest?test1=1&test2=2>>
>         >         >
>         >        
>         <http://localhost:8280/services/Myproxy/mytest?test1=1&test2=2
>         <http://localhost:8280/services/Myproxy/mytest?test1=1&test2=2>
>         >        
>         <http://localhost:8280/services/Myproxy/mytest?test1=1&test2=2
>         <http://localhost:8280/services/Myproxy/mytest?test1=1&test2=2>>>
>         >         >
>         >         > You can see above request is coming in to the
>         proxy named
>         >         Myproxy.
>         >         > There are two requirements.
>         >         >
>         >         > First requirement is URL re-writing and second one
>         is to extract
>         >         > parameters from the URL.
>         >         >
>         >         > *URL-rewriting*:
>         >         >
>         >         > For example the second URL will be something like
>         >         >
>         >         >
>         >        
>         http://myservice:9000/services/mySecondService/mytest?test1=1&test2=2
>         
> <http://myservice:9000/services/mySecondService/mytest?test1=1&test2=2>
>         >        
>         <http://myservice:9000/services/mySecondService/mytest?test1=1&test2=2
>         
> <http://myservice:9000/services/mySecondService/mytest?test1=1&test2=2>>
>         >         >
>         >        
>         <http://myservice:9000/services/mySecondService/mytest?test1=1&test2=2
>         
> <http://myservice:9000/services/mySecondService/mytest?test1=1&test2=2>
>         >        
>         <http://myservice:9000/services/mySecondService/mytest?test1=1&test2=2
>         
> <http://myservice:9000/services/mySecondService/mytest?test1=1&test2=2>>>.
>         >         > You can see that this is URL rewriting. We are
>         getting a URL
>         >         to one of
>         >         > resources inside ESB and ESB send it to another
>         service. The
>         >         second
>         >         > URL is constructed by appending the things that
>         doesn't
>         >         belong to the
>         >         > Myproxy resource URL to the second resource. Ideal
>         user
>         >         expectation
>         >         > is, there is a configuration in the Endpoint saying
>         >         something like
>         >         > url-rewrite=true. Then this will automatically
>         happen or
>         >         there is a
>         >         > property.
>         >         >
>         >         > Do you think this is a genuine requirement in case
>         of ESB?
>         >         Note this
>         >         > is specific to HTTP transport.
>         >         >
>         >         > *Parameter extraction:*
>         >         >
>         >         > The next requirement is to extract the parameters
>         from the
>         >         URL. I have
>         >         > started to do this by introducing a new XPath variable
>         >         context. For
>         >         > example you can get the parameter named test1 by a
>         XPath
>         >         expression
>         >         > like $url:test1. But it seems there is no way to
>         get  the
>         >         parameters
>         >         > directly from Axis2. Instead we only have access
>         to the full
>         >         URL. In
>         >         > that case we need to break it down manually. Do
>         you think
>         >         this is the
>         >         > correct approach or is there a way to get the
>         parameters
>         >         directly from
>         >         > a hash map?
>         >         >
>         >         > Thanks,
>         >         > Supun..
>         >         >
>         >        
>         
> ------------------------------------------------------------------------
>         >         >
>         >         > _______________________________________________
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>         <mailto:[email protected] <mailto:[email protected]>>
>         >         >
>         https://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
>         >         >
>         >
>         >
>         >         --
>         >         Ruwan Linton
>         >         Technical Lead & Product Manager; WSO2 ESB;
>         http://wso2.org/esb
>         >         WSO2 <http://wso2.org/esbWSO2> Inc.; http://wso2.org
>         >         email: [email protected] <mailto:[email protected]>
>         <mailto:[email protected] <mailto:[email protected]>>; cell: +94 77
>         >         341 3097
>         >         blog: http://blog.ruwan.org
>         >
>         >
>         >
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>         >
>         >
>         >
>         >
>         
> ------------------------------------------------------------------------
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>         >
>
>
>         --
>         Ruwan Linton
>         Technical Lead & Product Manager; WSO2 ESB; http://wso2.org/esb
>         WSO2 <http://wso2.org/esb%0AWSO2> Inc.; http://wso2.org
>         email: [email protected] <mailto:[email protected]>; cell: +94 77
>         341 3097
>         blog: http://blog.ruwan.org
>
>
>
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>
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>   


-- 
Ruwan Linton
Technical Lead & Product Manager; WSO2 ESB; http://wso2.org/esb
WSO2 Inc.; http://wso2.org
email: [email protected]; cell: +94 77 341 3097
blog: http://blog.ruwan.org



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