Service Callout to HTTP Post Business Service?

Hi,
I have created a "Business Service" with following config,
1) Any XML Service
2) Prtocol- HTTP
3) HTTP Request Method- Post.
I have created a Proxy Service , which is "Any XML Service" based on HTTP ptotocol.
inside the message flow of proxy service i am routing to the Above Business Service passing query parameter. The business service returns an XML.
How do i make a service callout to the business service assing a query string?
I need this functionality to work because i have to call multiple business service (endpoint is a jsp which accepts query string) inside a proxy service and retreive xml from response , merge them and send it back to the client(invoking proxy service).
Thanks,
Anup

Hi Gregory,
In fact when i used route node to invoke a business service i modified "URL dynamically by setting the value in the pipeline variable $outbound", it worked here.
Same i tried on Service Callout, it did not work. Also when we create a service callout action it expects us to select either "confugure soap body" or "configure payload document" followed by
1) Request Document variable
2) Response Document variable.
What parameter should i set for above fields?
Thanks,
Anup

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Hi Gregory,
In fact when i used route node to invoke a business service i modified "URL dynamically by setting the value in the pipeline variable $outbound", it worked here.
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http://blogs.oracle.com/jeffdavies/2009/06/restful_services_with_oracle_s_1.html
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Here is a OSB question around a quick business service that suddenly turn to be a slow one and the impact on the overall OSB performance.
Suppose you have a critical OSB cluster in production with many proxy and business services.
Because of requirements, you have a specific sync http business service (web service) that has an acceptable response time around 1 secs. But suddenly the response time goes to 30 secs or even more due to some problem, generating a great impact on thread and resource consumption on OSB side.
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If the service implementation is down, OSB can handle that using "Offline Endpoint URIs" in the operational settings of sbconsole. But in this situation the service is online accepting requests. It's just slow to respond.
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Wesley,
Ok, once the business service request is sent, the thread is freed. When the response comes, a new thread is picked up to handle the business service response. So in the mean time there's no blocking thread. Yes. It is correct.
Just to make sure, what about the waiting synchronous http client calling the proxy service ?
I mean, this fire-and-forget feature works only on the business service side or entirely for the proxy/business service (That separation would not make sense I suppose) ? The same case with http proxy. The request thread will be used till the BS is invoked in the route node or end-of the request pipeline. After this thread is released. Once the response comes from the http bs on a different thread, that thread will be used till the end of the responsepipeline
eg
Client---->Http Proxy---->Thread1{Request Pipeline--->Routenode---->End of Request actions in the Routenode--->Call BS Request} ----->Thread2{BS gets response--->Response Pipeline --->send response back to the client}
For example, a http client is waiting for the proxy service response, but while the business service does not respond, there is no blocking thread at all in the proxy service side too ?Yes. That is true
So, there could be many waiting http clients calling this proxy service, all http business service requests sent, and no blocking threads ?Yes.
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Manoj

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Thank You
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Hi,
I want to know when does invokation from http Business Service in OSB result into an error.
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Business service

What is Business service and when we will create Business service?
What is the difference between Business Service and Business System?

Hi,
This is already explained in above posts.
I will add just extending to above posts with some useful reference links also
Business Service Vs Business System
Business Service vs Business System in Integration Directory.
https://www.sdn.sap.com/sdn/collaboration.sdn?contenttype=url&content=https%3A//forums.sdn.sap.com/thread.jspa%3FforumID%3D44%26threadID%3D21711%26messageID%3D184694%23184694
Business System
A business system is an actual application system in a system landscape. A business system (service) comprises information about the inbound and outbound interfaces and the software component versions of the business system.
You usually use business system services when configuring internal company processes.
Business Service
If you want to address an abstract business entity as the sender or receiver of messages, choose this service type.
Using a business service, you can define the technical or business subunits of the companies involved and then assign them the relevant interfaces.
You usually use business services when configuring cross-company processes. In this case, you only make your interfaces known to the business partners involved and either do not make any details about your own system landscape available, or only specific details.
For example, you can define RosettaNet Partner Interface Processes (PIPs) as business services.
http://help.sap.com/saphelp_nw04/helpdata/en/3e/60653f0c9fa075e10000000a114084/frameset.htm
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Can a business service call a proxy service in OSB

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Thanks in advance
Priya

Yes a business service can call a proxy service......for example set your PS as http proxy service and set the endpoint url of PS in the business service..... Lets say when you have three service callouts to be done...the third service callout needs to retried in case of any failures, then you may move the third service callout to a new proxy service and use the buisness service for calling it,,, use the BS retry settings for retyring..

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Hi all,
I'm working with ALSB 2.6. I have a servlet that receive 2 simple parameters (GET or POST) and gives back a string "OK" or "KO".
I create a new business service that invoque this servlet, select Messaging Service; text - text; transport http - the endpoint uri and so.
When I try the uri of the busines directly it works fine but when I test the business service it does not.
I have created a proxy service (that route to the business service) with a Log action for the $body, and from an html with a form (that works fine for invoking the servlet) I have inoked the proxy service and get:
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Edited by aldreas at 09/20/2007 8:03 AM

Sorry for the brake, I'm back with this after a few time working in another (urgent) things.
What I need is to invoke a servlet from a busines service passing parameters to the servlet and the problem I have is that the servlet does not receive the params that I try to send.
I can assign the
$outbound/ctx:transport/ctx:request/http:query-string
to a variable and work with it but that's not my problem. The question is: how can I do for sending parameters to a servlet that is registered as a bussines service??
Well, I can add a a routing option action and set the URI manually, but... is that the only way for invoking a servlet sending parameters???

Message procesing OSB rename after service callout error

Hi,
I have an error after make a service callout, i can't do a rename in the context variable that i create for the response of the service callout.
I have this
SERVICE CALLOUT.
Service:.....
Operation:.....
requestVariable: inputVar
responseVariable: outputVar
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i dont know if this is a mistake in osb or is mine.
Please help out with this error
Thanks in advance.
Gustavo.
If you need an example, let me knwo and i will post all the details.
Thanks.

Hi hisaak, Thanks for the answer again..
your test was right, is the xpath, if i use //return/items works out fine!. Thanks for that.
I was reading in some books that // in osb it has to be avoided for perfomance issues, i just
want to know if /*/*/return[1]/items is the same of //return/items.
I used baseX6 for testing the Xpaths and Xquerys, and if i put the xml give above as input
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Service Callout to HTTP Post Business Service?

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