question: multiple soap callouts in a sequence

[Harm Verhagen-4]

Hi folks,


How can the following beeing achieved ?
  - receive soap request A.
                   issue external call to externalserver 1.  (1 parameter extraction from request A)
issue external call to externalserver 1.  (1 parameter extraction from request A)


Regards,
Harm

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[Harm Verhagen-4]

My previous mail got out before it was finished.


Hi folks,

We're struggling with a scenario where an ESB should be very helpfull.

How can the following beeing achieved ?
1- receive soap request A.
           2       issue external call to externalserver 1.  (1 parameter extraction from request A) 
           3      issue external call to externalserver 2.  (1 parameter extraction from request A, 1 parameter based on response of externalserver 1)
           4     issue external call to externalserver 3.  (1 parameter extraction from request A,  2 parameters based on response of both 1 + 2)
5  assembly response (with params from 1 + 2 + 3 ) 
6 send response back to caller.
  
We have been struggling with a single sequence consisting of multiple xlst transformations and multiple endpoints. But that proved to be a PITA.  (due to the many unforseen responses from all the external server 1,2,3)

Do you have an advice ?

Regards,
Harm


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[Ruwan Linton-3]

Hi Harm,

This is a straight forward case for the callout mediator, please have a
look at the callout mediator sample [1] and in this particular case you
need to have three callout mediators with probably three or more xslt
mediators to implement this scenario.

Thanks,
Ruwan

[1] -
http://wso2.org/project/esb/java/2.0.1/docs/wso2esb-2.0.1-docs/samples/advanced_mediation_samples.html#Callout

Harm Verhagen wrote:

> My previous mail got out before it was finished.
>
>
> Hi folks,
>
> We're struggling with a scenario where an ESB should be very helpfull.
>
> How can the following beeing achieved ?
> 1- receive soap request A.
>            2       issue external call to externalserver 1.  (1
> parameter extraction from request A)
>            3      issue external call to externalserver 2.  (1
> parameter extraction from request A, 1 parameter based on response of
> externalserver 1)
>            4     issue external call to externalserver 3.  (1
> parameter extraction from request A,  2 parameters based on response
> of both 1 + 2)
> 5  assembly response (with params from 1 + 2 + 3 )
> 6 send response back to caller.
>  
> We have been struggling with a single sequence consisting of multiple
> xlst transformations and multiple endpoints. But that proved to be a
> PITA.  (due to the many unforseen responses from all the external
> server 1,2,3)
>
> Do you have an advice ?
>
> Regards,
> Harm
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Esb-java-user mailing list
> Esb-java-user@...
> https://wso2.org/cgi-bin/mailman/listinfo/esb-java-user
>  

--
Ruwan Linton
Senior Software Engineer & Product Manager; WSO2 ESB; http://wso2.org/esb
WSO2 Inc.; http://wso2.org
email: ruwan@...; cell: [phone]
blog: http://ruwansblog.blogspot.com


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[Harm Verhagen-4]

Ok, Works like a charm
Thanks !

On Fri, Apr 3, 2009 at 6:00 AM, Ruwan Linton <ruwan@...> wrote:

Hi Harm,

This is a straight forward case for the callout mediator, please have a
look at the callout mediator sample [1] and in this particular case you
need to have three callout mediators with probably three or more xslt
mediators to implement this scenario.

Thanks,
Ruwan

[1] -
http://wso2.org/project/esb/java/2.0.1/docs/wso2esb-2.0.1-docs/samples/advanced_mediation_samples.html#Callout

Harm Verhagen wrote:
> My previous mail got out before it was finished.
>
>
> Hi folks,
>
> We're struggling with a scenario where an ESB should be very helpfull.
>
> How can the following beeing achieved ?
> 1- receive soap request A.
>            2       issue external call to externalserver 1.  (1
> parameter extraction from request A)
>            3      issue external call to externalserver 2.  (1
> parameter extraction from request A, 1 parameter based on response of
> externalserver 1)
>            4     issue external call to externalserver 3.  (1
> parameter extraction from request A,  2 parameters based on response
> of both 1 + 2)
> 5  assembly response (with params from 1 + 2 + 3 )
> 6 send response back to caller.
>
> We have been struggling with a single sequence consisting of multiple
> xlst transformations and multiple endpoints. But that proved to be a
> PITA.  (due to the many unforseen responses from all the external
> server 1,2,3)
>
> Do you have an advice ?
>
> Regards,
> Harm
>

> ------------------------------------------------------------------------
>
> _______________________________________________
> Esb-java-user mailing list
> Esb-java-user@...
> https://wso2.org/cgi-bin/mailman/listinfo/esb-java-user
>


--
Ruwan Linton
Senior Software Engineer & Product Manager; WSO2 ESB; http://wso2.org/esb
WSO2 Inc.; http://wso2.org
email: ruwan@...; cell: [phone]
blog: http://ruwansblog.blogspot.com


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[Ruwan Linton-3]

Harm Verhagen wrote:
> Ok, Works like a charm
Cool.... Nice to hear you got it to work. :-)

Thanks,
Ruwan

> Thanks !
>
> On Fri, Apr 3, 2009 at 6:00 AM, Ruwan Linton <ruwan@...
> <mailto:ruwan@...>> wrote:
>
>     Hi Harm,
>
>     This is a straight forward case for the callout mediator, please
>     have a
>     look at the callout mediator sample [1] and in this particular
>     case you
>     need to have three callout mediators with probably three or more xslt
>     mediators to implement this scenario.
>
>     Thanks,
>     Ruwan
>
>     [1] -
>     http://wso2.org/project/esb/java/2.0.1/docs/wso2esb-2.0.1-docs/samples/advanced_mediation_samples.html#Callout
>
>     Harm Verhagen wrote:
>     > My previous mail got out before it was finished.
>     >
>     >
>     > Hi folks,
>     >
>     > We're struggling with a scenario where an ESB should be very
>     helpfull.
>     >
>     > How can the following beeing achieved ?
>     > 1- receive soap request A.
>     >            2       issue external call to externalserver 1.  (1
>     > parameter extraction from request A)
>     >            3      issue external call to externalserver 2.  (1
>     > parameter extraction from request A, 1 parameter based on
>     response of
>     > externalserver 1)
>     >            4     issue external call to externalserver 3.  (1
>     > parameter extraction from request A,  2 parameters based on response
>     > of both 1 + 2)
>     > 5  assembly response (with params from 1 + 2 + 3 )
>     > 6 send response back to caller.
>     >
>     > We have been struggling with a single sequence consisting of
>     multiple
>     > xlst transformations and multiple endpoints. But that proved to be a
>     > PITA.  (due to the many unforseen responses from all the external
>     > server 1,2,3)
>     >
>     > Do you have an advice ?
>     >
>     > Regards,
>     > Harm
>     >
>     >
>     ------------------------------------------------------------------------
>     >
>     > _______________________________________________
>     > Esb-java-user mailing list
>     > Esb-java-user@... <mailto:Esb-java-user@...>
>     > https://wso2.org/cgi-bin/mailman/listinfo/esb-java-user
>     >
>
>
>     --
>     Ruwan Linton
>     Senior Software Engineer & Product Manager; WSO2 ESB;
>     http://wso2.org/esb
>     WSO2 <http://wso2.org/esb%0AWSO2> Inc.; http://wso2.org
>     email: ruwan@... <mailto:ruwan@...>; cell: [phone]
>     blog: http://ruwansblog.blogspot.com
>
>
>     _______________________________________________
>     Esb-java-user mailing list
>     Esb-java-user@... <mailto:Esb-java-user@...>
>     https://wso2.org/cgi-bin/mailman/listinfo/esb-java-user
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Esb-java-user mailing list
> Esb-java-user@...
> https://wso2.org/cgi-bin/mailman/listinfo/esb-java-user
>  

--
Ruwan Linton
Senior Software Engineer & Product Manager; WSO2 ESB; http://wso2.org/esb
WSO2 Inc.; http://wso2.org
email: ruwan@...; cell: [phone]
blog: http://ruwansblog.blogspot.com


_______________________________________________
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Esb-java-user@...
https://wso2.org/cgi-bin/mailman/listinfo/esb-java-user

[Harm Verhagen-4]

harm wrote:
>     > 1- receive soap request A.
>     >            2       issue external call to externalserver 1.  (1
>     > parameter extraction from request A)
>     >            3      issue external call to externalserver 2.  (1
>     > parameter extraction from request A, 1 parameter based on
>     response of
>     > externalserver 1)
>     >            4     issue external call to externalserver 3.  (1
>     > parameter extraction from request A,  2 parameters based on response
>     > of both 1 + 2)
>     > 5  assembly response (with params from 1 + 2 + 3 )
>     > 6 send response back to caller.

One more question
What if in step 5 I need the original message ?
I was thinking about clone/aggregate but not was 100% sure.
Any thoughts ?

Regards,
Harm

On Fri, Apr 3, 2009 at 9:30 AM, Ruwan Linton <ruwan@...> wrote:

Harm Verhagen wrote:
> Ok, Works like a charm

Cool.... Nice to hear you got it to work. :-)

Thanks,
Ruwan

> Thanks !
>
> On Fri, Apr 3, 2009 at 6:00 AM, Ruwan Linton <ruwan@...

> <mailto:ruwan@...>> wrote:
>
>     Hi Harm,
>
>     This is a straight forward case for the callout mediator, please
>     have a
>     look at the callout mediator sample [1] and in this particular
>     case you
>     need to have three callout mediators with probably three or more xslt
>     mediators to implement this scenario.
>
>     Thanks,
>     Ruwan
>
>     [1] -
>     http://wso2.org/project/esb/java/2.0.1/docs/wso2esb-2.0.1-docs/samples/advanced_mediation_samples.html#Callout
>
>     Harm Verhagen wrote:
>     > My previous mail got out before it was finished.
>     >
>     >
>     > Hi folks,
>     >
>     > We're struggling with a scenario where an ESB should be very
>     helpfull.
>     >
>     > How can the following beeing achieved ?
>     > 1- receive soap request A.
>     >            2       issue external call to externalserver 1.  (1
>     > parameter extraction from request A)
>     >            3      issue external call to externalserver 2.  (1
>     > parameter extraction from request A, 1 parameter based on
>     response of
>     > externalserver 1)
>     >            4     issue external call to externalserver 3.  (1
>     > parameter extraction from request A,  2 parameters based on response
>     > of both 1 + 2)
>     > 5  assembly response (with params from 1 + 2 + 3 )
>     > 6 send response back to caller.
>     >
>     > We have been struggling with a single sequence consisting of
>     multiple
>     > xlst transformations and multiple endpoints. But that proved to be a
>     > PITA.  (due to the many unforseen responses from all the external
>     > server 1,2,3)
>     >
>     > Do you have an advice ?
>     >
>     > Regards,
>     > Harm
>     >
>     >
>     ------------------------------------------------------------------------
>     >
>     > _______________________________________________
>     > Esb-java-user mailing list

>     > Esb-java-user@... <mailto:Esb-java-user@...>

>     > https://wso2.org/cgi-bin/mailman/listinfo/esb-java-user
>     >
>
>
>     --
>     Ruwan Linton
>     Senior Software Engineer & Product Manager; WSO2 ESB;
>     http://wso2.org/esb

>     WSO2 <http://wso2.org/esb%0AWSO2> Inc.; http://wso2.org
>     email: ruwan@... <mailto:ruwan@...>; cell: [phone]

>     blog: http://ruwansblog.blogspot.com
>
>
>     _______________________________________________
>     Esb-java-user mailing list

>     Esb-java-user@... <mailto:Esb-java-user@...>

>     https://wso2.org/cgi-bin/mailman/listinfo/esb-java-user
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Esb-java-user mailing list
> Esb-java-user@...
> https://wso2.org/cgi-bin/mailman/listinfo/esb-java-user
>


--
Ruwan Linton
Senior Software Engineer & Product Manager; WSO2 ESB; http://wso2.org/esb
WSO2 Inc.; http://wso2.org
email: ruwan@...; cell: [phone]
blog: http://ruwansblog.blogspot.com


_______________________________________________
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Esb-java-user@...
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[Ruwan Linton-3]

Harm Verhagen wrote:

> harm wrote:
> >     > 1- receive soap request A.
> >     >            2       issue external call to externalserver 1.  (1
> >     > parameter extraction from request A)
> >     >            3      issue external call to externalserver 2.  (1
> >     > parameter extraction from request A, 1 parameter based on
> >     response of
> >     > externalserver 1)
> >     >            4     issue external call to externalserver 3.  (1
> >     > parameter extraction from request A,  2 parameters based on
> response
> >     > of both 1 + 2)
> >     > 5  assembly response (with params from 1 + 2 + 3 )
> >     > 6 send response back to caller.
>
> One more question
> What if in step 5 I need the original message ?
> I was thinking about clone/aggregate but not was 100% sure.
> Any thoughts ?

You could of course do a clone and aggregate but it is more straight
forward if you can design the transformations and the attaching part of
the responses to the callouts in away that it preserves the original
message but just keep on adding content to the message in the 3 callouts...

When doing the transformations to the callout you can prepare part of
the message envelop as the pay load for the callout request and it can
be specified to the callout mediator using the source element in the
configuration. Please have a look at the callout mediator configuration
guide. [2]

Thanks,
Ruwan

[2] -
http://wso2.org/project/esb/java/2.0.2/docs/configuration_language.html#callout

>
> Regards,
> Harm
>
>
>
> On Fri, Apr 3, 2009 at 9:30 AM, Ruwan Linton <ruwan@...
> <mailto:ruwan@...>> wrote:
>
>     Harm Verhagen wrote:
>     > Ok, Works like a charm
>     Cool.... Nice to hear you got it to work. :-)
>
>     Thanks,
>     Ruwan
>     > Thanks !
>     >
>     > On Fri, Apr 3, 2009 at 6:00 AM, Ruwan Linton <ruwan@...
>     <mailto:ruwan@...>
>     > <mailto:ruwan@... <mailto:ruwan@...>>> wrote:
>     >
>     >     Hi Harm,
>     >
>     >     This is a straight forward case for the callout mediator, please
>     >     have a
>     >     look at the callout mediator sample [1] and in this particular
>     >     case you
>     >     need to have three callout mediators with probably three or
>     more xslt
>     >     mediators to implement this scenario.
>     >
>     >     Thanks,
>     >     Ruwan
>     >
>     >     [1] -
>     >    
>     http://wso2.org/project/esb/java/2.0.1/docs/wso2esb-2.0.1-docs/samples/advanced_mediation_samples.html#Callout
>     >
>     >     Harm Verhagen wrote:
>     >     > My previous mail got out before it was finished.
>     >     >
>     >     >
>     >     > Hi folks,
>     >     >
>     >     > We're struggling with a scenario where an ESB should be very
>     >     helpfull.
>     >     >
>     >     > How can the following beeing achieved ?
>     >     > 1- receive soap request A.
>     >     >            2       issue external call to externalserver
>     1.  (1
>     >     > parameter extraction from request A)
>     >     >            3      issue external call to externalserver 2.  (1
>     >     > parameter extraction from request A, 1 parameter based on
>     >     response of
>     >     > externalserver 1)
>     >     >            4     issue external call to externalserver 3.  (1
>     >     > parameter extraction from request A,  2 parameters based
>     on response
>     >     > of both 1 + 2)
>     >     > 5  assembly response (with params from 1 + 2 + 3 )
>     >     > 6 send response back to caller.
>     >     >
>     >     > We have been struggling with a single sequence consisting of
>     >     multiple
>     >     > xlst transformations and multiple endpoints. But that
>     proved to be a
>     >     > PITA.  (due to the many unforseen responses from all the
>     external
>     >     > server 1,2,3)
>     >     >
>     >     > Do you have an advice ?
>     >     >
>     >     > Regards,
>     >     > Harm
>     >     >
>     >     >
>     >    
>     ------------------------------------------------------------------------
>     >     >
>     >     > _______________________________________________
>     >     > Esb-java-user mailing list
>     >     > Esb-java-user@... <mailto:Esb-java-user@...>
>     <mailto:Esb-java-user@... <mailto:Esb-java-user@...>>
>     >     > https://wso2.org/cgi-bin/mailman/listinfo/esb-java-user
>     >     >
>     >
>     >
>     >     --
>     >     Ruwan Linton
>     >     Senior Software Engineer & Product Manager; WSO2 ESB;
>     >     http://wso2.org/esb
>     >     WSO2 <http://wso2.org/esb%0AWSO2> Inc.; http://wso2.org
>     >     email: ruwan@... <mailto:ruwan@...>
>     <mailto:ruwan@... <mailto:ruwan@...>>; cell: [phone]
>     >     blog: http://ruwansblog.blogspot.com
>     >
>     >
>     >     _______________________________________________
>     >     Esb-java-user mailing list
>     >     Esb-java-user@... <mailto:Esb-java-user@...>
>     <mailto:Esb-java-user@... <mailto:Esb-java-user@...>>
>     >     https://wso2.org/cgi-bin/mailman/listinfo/esb-java-user
>     >
>     >
>     >
>     ------------------------------------------------------------------------
>     >
>     > _______________________________________________
>     > Esb-java-user mailing list
>     > Esb-java-user@... <mailto:Esb-java-user@...>
>     > https://wso2.org/cgi-bin/mailman/listinfo/esb-java-user
>     >
>
>
>     --
>     Ruwan Linton
>     Senior Software Engineer & Product Manager; WSO2 ESB;
>     http://wso2.org/esb
>     WSO2 <http://wso2.org/esb%0AWSO2> Inc.; http://wso2.org
>     email: ruwan@... <mailto:ruwan@...>; cell: [phone]
>     blog: http://ruwansblog.blogspot.com
>
>
>     _______________________________________________
>     Esb-java-user mailing list
>     Esb-java-user@... <mailto:Esb-java-user@...>
>     https://wso2.org/cgi-bin/mailman/listinfo/esb-java-user
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Esb-java-user mailing list
> Esb-java-user@...
> https://wso2.org/cgi-bin/mailman/listinfo/esb-java-user
>  

--
Ruwan Linton
Senior Software Engineer & Product Manager; WSO2 ESB; http://wso2.org/esb
WSO2 Inc.; http://wso2.org
email: ruwan@...; cell: [phone]
blog: http://ruwansblog.blogspot.com


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