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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » SOAP Req, Generic WebService - namespace ?

SOAP Req, Generic WebService - namespace ?

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sebastia

Posted: Thu Mar 20, 2014 12:56 am Post subject: SOAP Req, Generic WebService - namespace ?

Grand Master

Joined: 07 Oct 2004
Posts: 1003

Hi.
The SOAP Request node has a "operation mode" checkbox. You can either

*) invoke a specific web service defined by a WSDL interface
*) invoke a generic web service

We want to use the second option, also called "gateway mode".

The description says
"Gateway mode allows you to configure your flow to handle generic SOAP request/response and one-way messages, or to act as a facade between multiple web services clients and multiple back-end web services providers. The node can onvoke any binding operation."

Perfect - that is EXACTLY what we need.

Now, how to set destination URL ? No problem :

Code:

SET OutputLocalEnvironment.Destination.SOAP.Request.Transport.HTTP.WebServiceURL = newUrl ;

Next - how to set "Operation" ? No problem :

Code:

SET OutputLocalEnvironment.Destination.SOAP.Request.Operation = 'myOperation' ;

Last : what about NAMESPACE ?
My first webservice requires

Code:

declare q0 NAMESPACE 'http://wsServer.myfirst.com/' ;

And the second web service requires

Code:

declare q1 NAMESPACE 'http://tod.ws.com/' ;

How can I change namespaces between different web services ?

Sebastian.

fatherjack

Posted: Thu Mar 20, 2014 3:50 am Post subject: Re: SOAP Req, Generic WebService - namespace ?

Knight

Joined: 14 Apr 2010
Posts: 522
Location: Craggy Island

sebastia wrote:

Last : what about NAMESPACE ?
My first webservice requires

Code:

declare q0 NAMESPACE 'http://wsServer.myfirst.com/' ;

And the second web service requires

Code:

declare q1 NAMESPACE 'http://tod.ws.com/' ;

How can I change namespaces between different web services ?

Sebastian.

As you have described above? Or am I misunderstanding? What problem are you seeing when you use the node in gateway mode?
_________________
Never let the facts get in the way of a good theory.

sebastia

Posted: Thu Mar 20, 2014 3:57 am Post subject:

Grand Master

Joined: 07 Oct 2004
Posts: 1003

Jajaja - thanks Jack, now I see I did a very bad description.

Let me improve it.

I want to have a TABLE with all the possible web services.
So, I receive a message and by its contents, calculate the index to the table, where someone has stored

*) the destination URL
*) the remote OPERATION.

But looks like I need to setup a "namespace" before going into SOAP Request node.

How can I get the namespace from a table AND SET IT ?

The sentence "declare" is not a run time sentence, but coding time.

I need to change namespace on run time ...

Tx.

mqjeff

Posted: Thu Mar 20, 2014 4:07 am Post subject:

Grand Master

Joined: 25 Jun 2008
Posts: 17447

Why do you need the namespace?

What part of the message will it be attached to?

How are you otherwise building the message that is being provided to the SOAPRequest node?

fjb_saper

Posted: Thu Mar 20, 2014 5:31 am Post subject:

Grand High Poobah

Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY

Can you specify if the need for a namespace is attached to the passing of the operation in the LocalEnvironment?

Have fun

_________________
MQ & Broker admin

fatherjack

Posted: Thu Mar 20, 2014 7:22 am Post subject:

Knight

Joined: 14 Apr 2010
Posts: 522
Location: Craggy Island

sebastia wrote:

How can I get the namespace from a table

The same way you are getting your URL and Operation from a table.

sebastia wrote:

AND SET IT ?

DECLARE ns NAMESPACE etc. and then put it in the message you are building.
_________________
Never let the facts get in the way of a good theory.

sebastia

Posted: Fri Mar 21, 2014 12:40 am Post subject:

Grand Master

Joined: 07 Oct 2004
Posts: 1003

The actual code, that runs perfectly, is this one:

Code:

   declare ws_num char ;
   set ws_num = trim ( InputRoot.XMLNSC.Mensaje.wsn ) ;

   CASE ws_num

      WHEN '1' THEN -- <Mensaje> <Evento> EVENT/WS </Evento> <wsn> 1 </wsn> </Mensaje>

         declare q0 NAMESPACE 'http://wsServer.myfirst.com/' ;
         SET OutputLocalEnvironment.Destination.SOAP.Request.Transport.HTTP.WebServiceURL = 'http://localhost:8080/wsServer_hello' ;
         SET OutputLocalEnvironment.Destination.SOAP.Request.Operation = 'getGreeting' ;
         set OutputRoot.SOAP.Body.q0:getGreeting.arg0 = 'sebasV2.a' ;

      WHEN '2' THEN -- <Mensaje> <Evento> EVENT/WS </Evento> <wsn> 2 </wsn> </Mensaje>

         declare q1 NAMESPACE 'http://tod.ws.com/' ;
         SET OutputLocalEnvironment.Destination.SOAP.Request.Transport.HTTP.WebServiceURL = 'http://localhost:1212/TOD_server' ;
         SET OutputLocalEnvironment.Destination.SOAP.Request.Operation = 'say_TOD' ;
         set OutputRoot.SOAP.Body.q1:say_TOD.arg0 = 'sebasV2.b' ;

      else
         SET OutputLocalEnvironment.Destination.SOAP.Request.Transport.HTTP.WebServiceURL = 'http://localhost:8080/not.found.com' ;
         SET OutputLocalEnvironment.Destination.SOAP.Request.Operation = 'unknown' ;

   END CASE ;

As you can see, the text of the message is not important (by now).

We need to generalize this "CASE" approach in order to be able to get the URL and Operation values from a table, indexed by "ws_num".
And the "declare" statement is the problem.

Jeff - I cant answer "why I need the namespace".
What I see is that it is used in the setting of the Output :

Code:

set OutputRoot.SOAP.Body.q0:getGreeting.arg0 = 'sebasV2.a'
set OutputRoot.SOAP.Body.q1:say_TOD.arg0 = 'sebasV2.b' ;

... because I know the XML that has to be generated has the form

Code:

<q0:getGreeting><arg0>sebasas</arg0></q0:getGreeting>

Code:

<q0:say_TOD><arg0>pepeta</arg0></q0:say_TOD>

for the second case.

So, I think I can answer to

Quote:

the need for a namespace is attached to the passing of the operation in the LocalEnvironment?

... with a "yes", right ?

Thanks.

mr FatherJack : we need our code to have this structure :

Code:

set ws_num = trim ( InputRoot.XMLNSC.Mensaje.wsn ) ; -- get index
SET OutputLocalEnvironment.Destination.SOAP.Request.Transport.HTTP.WebServiceURL = Table_URLs [ ws_num ] ;
SET OutputLocalEnvironment.Destination.SOAP.Request.Operation = Table_Operations [ ws_num ] ;

... and now comes the namespace I dont know how to manage ...

Armageddon123

Posted: Fri Mar 21, 2014 4:27 am Post subject:

Acolyte

Joined: 11 Feb 2014
Posts: 61

From what i understand, the question is how to define a namespace in the xml when u dont know what is the namespace beforehand.

use variables for namespace!!
get the namespace from table, assign to variable and use it in the
set OutputRoot.SOAP.Body... statement.

from
http://publib.boulder.ibm.com/infocenter/wmbhelp/v6r1m0/index.jsp?topic=%2Fcom.ibm.etools.mft.doc%2Fak04980_.htm

Quote:

SET OutputRoot.XMLNS.{prefixOne}:{'PurchaseOrder'} =
InputRoot.XMLNS.prefixOne:PurchaseOrder;

might be i got the whole question wrong!!,

did I?

sebastia

Posted: Fri Mar 21, 2014 5:07 am Post subject:

Grand Master

Joined: 07 Oct 2004
Posts: 1003

Looks pretty good to me ... Shall try Monday first hour.

Today .. it's Friday 3 pm here ...

Have a nice weekend all !

sebastia

Posted: Tue Apr 01, 2014 5:07 am Post subject:

Grand Master

Joined: 07 Oct 2004
Posts: 1003

Hi, coleagues - here you are the code to call a web service in both modes :

1) specific, using WSDL

2) generic (SOAP Request node in gateway mode)

Requires 3 parameters:
1) namespace
2) URL
3) operation

Code:

   CASE ws_num

      WHEN '1' THEN -- <Mensaje> <Evento> EVENT/WS </Evento> <wsn> 1 </wsn> </Mensaje>

         declare q0 NAMESPACE 'http://wsServer.myfirst.com/' ;
         SET OutputRoot.SOAP.Context.Namespace.(SOAP.NamespaceDecl)xmlns:q0 = 'http://wsServer.myfirst.com/' ;
         SET OutputLocalEnvironment.Destination.SOAP.Request.Transport.HTTP.WebServiceURL = 'http://localhost:8080/wsServer_hello' ;
         SET OutputLocalEnvironment.Destination.SOAP.Request.Operation = 'getGreeting' ;
         set OutputRoot.SOAP.Body.q0:getGreeting.arg0 = 'sebas using 1st web service' ;

      WHEN '2' THEN -- <Mensaje> <Evento> EVENT/WS </Evento> <wsn> 2 </wsn> </Mensaje>

         declare q1 CHARACTER ;
         set q1 = 'http://tod.ws.com/' ; -- (1) input
         declare operacion CHARACTER ;
         set operacion = 'say_TOD' ; -- (2) input

         SET OutputRoot.SOAP.Context.Namespace.(SOAP.NamespaceDecl)xmlns:q1 = q1 ;
         SET OutputLocalEnvironment.Destination.SOAP.Request.Transport.HTTP.WebServiceURL = 'http://localhost:8181/TOD_server' ; -- (3) input
         SET OutputLocalEnvironment.Destination.SOAP.Request.Operation = operacion ;

         CREATE LASTCHILD OF OutputRoot.SOAP.Body NAMESPACE q1 NAME operacion ; -- this line does the trick
         set OutputRoot.SOAP.Body.*.arg0 = 'sebas uses 2nd web service' ; -- web service input parameter

      else

Enjoy. Sebastian.

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