Sync-Asyn Bridge

Hello friends,
Could any one give information or blog on Synch -Asyn Bridge used in HTTP --> RFC scenario

Hi,
Refer this..
https://www.sdn.sap.com/sdn/weblogs.sdn?blog=/pub/wlg/1403 [original link is broken] [original link is broken] [original link is broken]
BPM Sync- Async Bridge
Pipeline timeout error
/people/pooja.pandey/blog/2005/07/27/idocs-multiple-types-collection-in-bpm
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/e3d59c90-0201-0010-ac83-cfd0071f095a
Who to manage TimeOut in BPM ?
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/eb5cc090-0201-0010-5284-fd5376b01934
/people/sriram.vasudevan3/blog/2005/01/11/demonstrating-use-of-synchronous-asynchronous-bridge-to-integrate-synchronous-and-asynchronous-systems-using-ccbpm-in-sap-xi - Use of Synch - Asynch bridge in ccBPM
regards,
vasanth.

Similar Messages

How to realize a Sync-Asyn Bridge

Hey Folks,
I was trying to 'decode' whatever is written in the How to guide (Realize a sync - async and async - sync bridge in the adapter framework). Thanks to Bhavesh he posted the thread on the Async - Sync part and so i thought i would figure out the Sync - Async part.
Ok so here is what i have done till now (with no success);
its a HTTP <-> XI <-> File
So;
2 DT/MT for HTTP, 2 DT/MT for file
1 MI outbound sync -> http
1 MI inbound sync -> File
the 2 mappings and the 1 IM
In configuration;
1 rec. file adapter and 1 sender file adapter
the configuration is as usual for a sync scenario; except for the sender agreement for the sender file adapter, i configure a dummy sender agreement with dummy interface and dummy namespace but the original CC created.
In the Recv. file channel module part;
1 AF_Modules/RequestOnewayBean Local Enterprise Bean 2
2 CallSapAdapter Local Enterprise Bean 0
3 AF_Modules/WaitResponseBean Local Enterprise Bean 1
2 passThrough true
in the sender file channel;
1 AF_Modules/NotifyResponseBean Local Enterprise Bean 1
So any of you guys who did something on that document, i hope can throw some light
Cos i am sure i am missing something here !!!
~~ShaBZ

HI,
Are you using BPM or not??
Can you plz tell me the SP number/version.
I hope Sync - Asyn without BPM is possible with latest SP.
Please see the below links
/people/community.user/blog/2006/12/12/http-to-rfc--a-starter-kit
Searching for a BPM scenario
With BPM
/people/sriram.vasudevan3/blog/2005/01/11/demonstrating-use-of-synchronous-asynchronous-bridge-to-integrate-synchronous-and-asynchronous-systems-using-ccbpm-in-sap-xi
https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/1403 [original link is broken] [original link is broken] [original link is broken] [original link is broken]
Regards
Chilla..

BPM correlation and Sync-Asyn Bridge....

Regarding Sync-Asyn ,I have gone thru these blogs...
Demonstrating Use of Synchronous-Asynchronous Bridge to Integrate Synchronous and Asynchronous systems using ccBPM in SAP Xi - Use of Synch - Asynch bridge in ccBPM
https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/1403 [original link is broken] [original link is broken] [original link is broken] - Use of Synch - Asynch bridge in ccBPM
I am not able to do a end to end scenario...using this ....So could any one give me a step by step guide for the syn-asyn Bridge.
And also step by step for correlation...
Please help me in this regard....

Hi,
Defining Sync/Async Communication
To enable the communication between a synchronously calling business system (synchronous outbound interface) and an asynchronously called business system (asynchronous inbound and outbound interface), you can define a sync/async bridge in an integration process. You can only define one sync/async bridge for each integration process.
You can also achieve sync/async communication by using the JMS adapter. If you do not have any particular demand for monitoring or for troubleshooting, SAP recommends that you use sync/async communication in the JMS adapter instead. The advantage of using the JMS adapter over synch/async communication using an integration process is a significant increase in system performance.
See: Async/Sync and Sync/Async Bridge in JMS Adapter
Structure of a Sync/Async Bridge
The following table outlines the minimum components of a sync/async bridge:
Step
Use
Receive step to open the sync/async bridge
Receives the message request from the synchronously calling business system and opens the sync/async bridge
Asynchronous send step
Sends the received message asynchronously to the asynchronously called business system
Receive step
Receives the message from the asynchronously called business system
Send step to close the sync/async bridge
Sends, for example, the response from the asynchronously called business system to the synchronously calling business system
Performance Considerations
If you insert additional steps in the sync/async bridge, the synchronous time is increased correspondingly. If the time that elapses before the sync/async bridge is closed is too long, this can lead to problems.
Fault Messages
It is currently not possible to send fault messages back to the synchronously calling business system. If you want to return error statuses to the synchronously calling business system, you can define a field for an error indicator in the message that is sent to the synchronous interface.
Procedure
Define a Receive Step to Open the Sync/Async Bridge
       1.      Insert the receive step to open the sync/async bridge in the integration process.
You can do this at the following points:
○       Directly after the start marker
○       As the first step in a block if the block is the first step of the integration process and if it has the mode Standard
○       As the first step in a fork. If the fork already contains some starting receive steps, the Start Process indicator is automatically reset for these steps.
       2.      In the object area, define the container element that receives the synchronously sent message.
Specify an asynchronous, abstract interface in the container element. The message must correspond to the request message of the synchronous interface used to receive the message.
       3.      Select this container element in the Message field in the properties area of the receive step.
       4.      In the Mode field, select Open S/A Bridge.
       5.      Select the Start Process field.
The receive step to open the sync/async bridge must start the integration process. There must be no other receive steps to start the integration process.
       6.      Specify the synchronous interface for receiving the message from the synchronously calling business system. The message type of the message to be received and the request message from the synchronous interface must be identical.
Define an Asynchronous Send Step
       7.      Insert a send step that sends the received message asynchronously to the asynchronously called business system.
See also: Sending Messages from Integration Processes Asynchronously
Define a Receive Step
       8.      Insert a receive step that receives the message from the asynchronously called business system.
Define a Send Step to Close the Sync/Async Bridge
       9.      Insert the send step at the required position in the process definition.
Do not insert the send step in a loop, block, or fork.
   10.      In the Mode field, select Close S/A Bridge.
The integration process must not contain any further send steps to close a sync/async bridge.
   11.      In the Opened By field, specify the receive step that opened the sync/async bridge.
   12.      In the message field, specify the message that is sent to the synchronous interface.
This message must be of the same type as the response message from the synchronous interface that you specified in the opening receive step.
Example
You can find an example of a sync/async bridge in the Integration Repository under SAP Basis à SAP Basis 6.40, namespace http://sap.com/xi/XI/System/Patterns under BpmPatternSyncAsyncBridge.
For a description of the example, see Example: Sync/Async Communication.
Reg,
suresh

Correlation and Sync Asyn Bridge

Regarding Sync-Asyn ,I have gone thru these blogs...
Demonstrating Use of Synchronous-Asynchronous Bridge to Integrate Synchronous and Asynchronous systems using ccBPM in SAP Xi - Use of Synch - Asynch bridge in ccBPM
https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/1403 [original link is broken] [original link is broken] [original link is broken] - Use of Synch - Asynch bridge in ccBPM
I am not able to do a end to end scenario...using this ....So could any one give me a step by step guide for the syn-asyn Bridge.
And also step by step for correlation...
Please help me in this regard....
<Moderator note: thread locked. I moved your last post to XI, please do not post duplicate questions>
Edited by: Mike Pokraka on Jul 7, 2008 1:00 PM

Regarding Sync-Asyn ,I have gone thru these blogs...
Demonstrating Use of Synchronous-Asynchronous Bridge to Integrate Synchronous and Asynchronous systems using ccBPM in SAP Xi - Use of Synch - Asynch bridge in ccBPM
https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/1403 [original link is broken] [original link is broken] [original link is broken] - Use of Synch - Asynch bridge in ccBPM
I am not able to do a end to end scenario...using this ....So could any one give me a step by step guide for the syn-asyn Bridge.
And also step by step for correlation...
Please help me in this regard....
<Moderator note: thread locked. I moved your last post to XI, please do not post duplicate questions>
Edited by: Mike Pokraka on Jul 7, 2008 1:00 PM

Usage of sync-asyn bridge problem in BPM in particular scenario

scenario is to send a Stock availability check from one suboffice to other suboffice which does not involve any R/3 activities.
I need to send SOAP request to XI, BPM receives request through synchronous interface.
BPM has to send request to DB through synchronous interface and gets response
Questions:
1) whether sync-async bridge comes into picture in BPM or not
2) i am really confused how many Data types,Message types and message interfaces i have to create.
3) what are all the message interfaces i have to create
4) abt Integration Directory activities.
Its would be appreciated if u tell step by step.
Its urgent..
Thanks & Regards.,
Pushparaju.B

I have created these things as of now , but problem in interface mapping
Interface Objects
Data Types
1)DT_Soap_request
2)DT_Soap_response
3)DT_Jdbc_request
4)DT_Jdbc_response
corresponding message types
1)MT_Soap_request
2)MT_Soap_response
3)MT_Jdbc_request
4)MT_Jdbc_request_response
Message Interfaces
1)MI_SOAP (inbound asynchronous) MT_Soap_Response and MT_Soap_Request input message
2)MI_JDBC (outbound asynchronous) MT_Jdbc_response output message and MT_Jdbc_request input message
Mapping Objects
Message mappings
1) MM_Jdbc_Response_Soap_Response where MT_Jdbc_request_response and target message is MT_Soap_response
2) MM_Soap_Request_Jdbc_Request where source message is MT_Soap_request and target message is MT_Jdbc_request
Error in interface mapping is
IM_Soap_Request_Jdbc_Request has interfaces source is MI_JDBC and target is MI_SOAP
 No object found for message mapping in request tab
can anyone help me please its urgent.
why its not detecting the message mapping in request tab
Thanks & Regards.,
Pushparaju.B.

Syn-Asyn Bridge and correlation

Regarding Sync-Asyn ,I have gone thru these blogs...
Demonstrating Use of Synchronous-Asynchronous Bridge to Integrate Synchronous and Asynchronous systems using ccBPM in SAP Xi - Use of Synch - Asynch bridge in ccBPM
https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/1403 [original link is broken] [original link is broken] [original link is broken] - Use of Synch - Asynch bridge in ccBPM
I am not able to do a end to end scenario...using this ....So could any one give me a step by step guide for the syn-asyn Bridge.
And also step by step for correlation...
Please help me in this regard....
<Moderator note: Moved to more appropriate XI forum>
Edited by: Mike Pokraka on Jul 7, 2008 10:09 AM

Regarding Sync-Asyn ,I have gone thru these blogs...
Demonstrating Use of Synchronous-Asynchronous Bridge to Integrate Synchronous and Asynchronous systems using ccBPM in SAP Xi - Use of Synch - Asynch bridge in ccBPM
https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/1403 [original link is broken] [original link is broken] [original link is broken] - Use of Synch - Asynch bridge in ccBPM
I am not able to do a end to end scenario...using this ....So could any one give me a step by step guide for the syn-asyn Bridge.
And also step by step for correlation...
Please help me in this regard....
<Moderator note: Moved to more appropriate XI forum>
Edited by: Mike Pokraka on Jul 7, 2008 10:09 AM

Regarding Syn-Asyn Bridge

Hi All,
Can any one explain the following:-
In Syn-Asy bridge, we are using Reveiver Step( open Syn/Asyn), Send step(Asyn), Receiver step(Asyn), Sendstep(close syn/Asyn bridge). In this case receiver is Asynchronous system, so we are taking response from Asy system?(i.e., 3rd step from above flow). This means receiver system in called as synchronous ( send step-request, receive-step response). Please explain why we are taking response from Asyn system in syn/asyn bridge?

Hi Ajay,
As you said is perfectly correct that we receive response from the Asynch system but synchronously.
As in the synch/asynch bridge, the synchronous business system sends request synchronously to the Integration Server (BPE) which in turn forwards that request asynchronously to the aynchronous business system(receiver). This receiver sends the asynch response to BPE back which is then sent back as anch response to the sender that is the synchronous business system.
Also refer to the topic Sync/Async Communication in the following link
http://help.sap.com/saphelp_nw04/helpdata/en/14/80243b4a66ae0ce10000000a11402f/frameset.htm
Also see the blog:
/people/henrique.pinto/blog/2007/08/02/syncasync-scenarios-without-bpm
Regards,
Shibani
*Reward with points if helpful*

What is Syn to Asyn bridge

hi all,
it is one interview question.
what is Syn to Asyn bridge.
vijay

Hi Vijay,
You can use a sync/async bridge to connect a synchronous system to an asynchronous system. The synchronous request is converted to an asynchronous request in the module processor and sent.
The asynchronous system sends a response to a sender adapter. In the module processor of the sender adapter, this response is forwarded to the module processor of the original receiver adapter, where it is sent as a synchronous response of the waiting synchronous request.
Please have a look upon :
http://help.sap.com/saphelp_nw04/helpdata/en/43/65d4dab39b0398e10000000a1553f6/content.htm
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/5059f110-0d01-0010-7c8b-fdc983be70c0
*Pls: Reward points if helpful*
Regards,
Jyoti

Dynamic configuration in Sync/Async bridge in JMS

Hi
Scenario:
Portal sending request to JMS MQ and getting Response using sync/Async Bridge.
I have to written a UDF which will capture the value for cust_uid from request mapping and store it in dynamic configuration
And when the response comes from JMS MQu2026.this value gets populated in response mapping.
I have tested the UDF in a dummy Soap2rfc scenario and its working fine.
But when used in Sync/Async Bridge, the dynamic configuration fails.
For Sync/Async Bridge, there are 2 channels 1) Sender JMS 2) receiver JMS.
The synchronous request is converted to an asynchronous request in the module processor and sent.
The asynchronous system sends a response to a sender adapter. In the module processor of the sender adapter, this response is forwarded to the module processor of the original receiver adapter, where it is sent as a synchronous response of the waiting synchronous request.
Please suggest
Regards
Abhijit

Hi Abhijit,
Okay, so your data extraction/insertion is working fine for a simple synchronous request responser call.
I suppose this is working fine because your receiver adapter copies some part of the request message (at least the dc header) to the response message. (But I don't think this always works for all the adapter types). It is not working for the sync-async bridge because there are two unrelated messages in this case.
In order to copy the dc header from the first message to the second message, I think you can use the DynamicConfiguraitionBean module to store the dc header value in the module data and use this module again to recover it and set it to the second message. The whole process is somewhat complicated, but I will sketch the approach below.
First, let's call the first use of DCB the store step and the second the recover step. These store and recover steps must take place in the same module sequence so that they can use the module data to pass data from the first message to the second message. Furthermore, the store step must occur after the cust_id value is extracted into the dc header. So, your configuration must be placed in the receiver adapter side. Assuming the request message with the filled dc header coming into the module sequence, the first DCB module can be placed before the ROB module to store the dc header value in the module data. And the second DCB module can be placed after the WRB module to recover the dc header value from the module data and set it the dc header of the response message.
I hope this will work.
Regards, Yza

Getting Time-Out Error in Sync-Async Bridge

Hi All,
My IP has a Sync-Async Bridge. I have a fork, two senders, two switchs and a transformation step inside the bridge.
If XI takes much time to process the IP, the send step that closes sync-async bridge is not waiting for the message after a particular period and throws time out error to the sender.
Is it possible to increase the waiting time for sync-async bridge?
This IP works correctly 8 out of 10 times. Sometimes the message is sitting permenantly in the queue(smq2) and gives me system failure error.
Can u tell me why this problem happening?
Thanks & Regards,
Senthil.

Dear Michal/Senthil,
Can you pl clear a confusion that i have had for ages...
suppose there is a sync/async bridge ( i understand that it is used for sync business system too async BS communcation )
where we have 4 steps
sync receive - > async send -> async receive -> sync send..
i do understand that async send and async receive are combined through correlation
but i do not understand how do they work..
i mean when async send say send a file to a target system...does async receive reads a file from the same folder based on the corelation or wat...
basically can you pls explain me how do the steps 2 and 3 above work
Edited by: Tarang Shah on Mar 3, 2009 12:51 PM

Using WAIT step in Sync/Async Bridge

I am using a sync/async bridge and placed a 1 minute wait step in between my async send and async reply. When I test my process, the async reply comes in but then my 1 minute wait eventually times out and gives me an error. Can someone guide me in fixing this BPM design (which steps to add and how)?
http://webpages.charter.net/kpwendel/bpm_with_wait.jpg
I would like it to stop waiting once the async reply comes in and not timeout. If the 1 minute mark comes and a reply never came in, it would also be nice to send back an error message.
Thanks!

I pulled my WAIT task and had this scenario working a week ago. I have not made any changes, but now my inbound replies to close the BPM and link up to the request are not "linking". The request is eventually timing out even though the reply with a good correlation id comes in successfully. Any suggestions?
UPDATE: I went through my objects in the IB:Config and resaved/activated them and now it is working. Don't know what messed them up in the first place.
Message was edited by: Keith Wendel

Sync/Async bridge via JMS with FAULT messages

Hello all, 
I set up a sync/async bridge scenario with using of JMS communication channel (SAP - JMSReceiverCC - JMSServer and application - JMSSenderCC - SAP). The normal communication works fine. 
But what we can not solve is the Fault Message handling. If there is a application error behind the JMS, a fault message is generated instead of proper application response and sent back to XI. Without any additional setup of JMS Sender CC the processing of the message ends with "MAPPING - EXCEPTION_DURING_EXECUTE", because normal "response mapping" is executed instead of "fault message mapping". This is correct behavior without any discussion. 
[SAPhelp|http://help.sap.com/saphelp_nw70/helpdata/en/45/202845de34072ce10000000a155369/frameset.htm] says that there are 2 module parameters to be set : fault, faultNamespace. The description is rather vague, so let's see, what the "NotifyResponseBean" does, when parameters fault/faultNamespace are filled: 
<pre>if(fault != null && faultNamespace != null)
if(faultNamespace.equals("http://sap.com/xi/XI/System"))
 ((XIMessage)message1).setMessageClass(MessageClass.SYSTEM_ERROR);
 ((XIMessage)message1).setError(fault, "no additional information");
} else
 ((XIMessage)message1).setMessageClass(MessageClass.APPLICATION_ERROR);
 ErrorInfo errorinfo = message1.createErrorInfo();
 errorinfo.setAttribute("ApplicationFaultInterface", fault);
 errorinfo.setAttribute("ApplicationFaultInterfaceNamespace", faultNamespace);
 errorinfo.setAttribute("ErrorCode", fault);
 errorinfo.setAttribute("AdditionalErrorText", "no additional information");
 message1.setErrorInfo(errorinfo);
} else
((XIMessage)message1).setMessageClass(MessageClass.APPLICATION_RESPONSE);
}</pre> 
The code is pretty straight forward so one could assume, that it's the name and namespace of inbound synchronnous message interface what is supposed to be filled in the values of each parameter. And from that kind of information SAP XI can evolve how to handle the response, actually the fault. 
Unfortunatelly the real situation is different - every time the fault message is generated and sent back to XI, the response is correctly corelated with the request message, "WaitResponseBean" and "NotifyResponseBean" are finished correctly and the processing crashes in messaging class on following exception: 
java.lang.NullPointerException at java.util.Hashtable.put(Hashtable.java:592) at
com.sap.aii.messaging.mo.MessageContext.setAttribute(MessageContext.java:140) at
com.sap.aii.adapter.xi.ms.XIMessage.updateHeaders(XIMessage.java:4244) at
com.sap.aii.adapter.xi.ms.XIMessage.getTransportHeaders(XIMessage.java:570) at
com.sap.aii.af.ra.ms.impl.ServerConnectionImpl.request(ServerConnectionImpl.java:212) at
com.sap.aii.af.ra.ms.impl.core.transport.http.MessagingServlet.doPost(MessagingServlet.java:337) at ...
 
Is there anyone, who can put more light on JMS sync/async bridge fault handling ???
 
Thank you ... 
Regards
Tomas

Hello again,
I proceed in investigation little more, but the main problem has not been solved. I found that the problem is not even in WaitResponseBean (placed in JMCReceiverCC). This bean is woken up properly on base of proper CorrelationID. See the log:
2009-10-15 11:00:33 Success WRB: entering WaitResponseBean
2009-10-15 11:00:33 Success WRB: retrieving the message for f1ea1fc0-b96d-11de-9b68-00144f4acd86 ...
2009-10-15 11:00:46 Success WRB: retrieved the message: ApplicationError
2009-10-15 11:00:46 Success WRB: leaving WaitResponseBean
I think, that the problem is somewhere within main messaging functionality. I suppose that on base of exception message:
com.sap.aii.messaging.mo.MessageContext.setAttribute(MessageContext.java:140) at
which is generated.
Any ideas or comments ?
Thank you in advance.
Regards
Tomas

Sync/Async bridge

Hey
My task is to have an Idoc sent to a Web Service. I have heard that this can be solved using a sync/async bridge in BPM, but from what I can read (help.sap.com) it always say that the first receive step is from a synchronous application. My question is then: Can I use the sync/async bridge to call a web service - i.e. changing from asynchronous (Idoc) to synchronous (WS call)?
Anyone knows a blog that shows some good examples of sync/async communication? I have read the inital blogs on BPM, but not found anyone good at async/sync communiation...
thanks a lot!
regards Marianne

Hi,
If you want to receive the response from Webservice means you need to use BPM here.
Otherwise no need of any BPM,
That too if u want to response from WS also u dont require any Sync/Async Step here.
You can configure the BPM with Async receive-Sync Send-Async Send
REgards
Seshagiri

Sync async bridge configuration

Hi,
I am doing one sync to sync scenario using sync/async bridge in BPM,I am posting one message from HTTP client.
I am receiving the synchronous message inside bpm and opened sync aysnc bridge.
Then I need to do some transformations,
after transformation step I am closing sync/async bridge and sending the message back to sender system.
I have created repository objects,
while configuring directory objects,
I have run wizard once between sender and BPM and do i need to run wizard again?
please explain me about configuration (ID objects)?
Thanks
Best Regards,
Harleen Kaur Chadha

Hi Harleen,
Check this below blog,its very useful for ur requirement.
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10c73036-f019-2b10-20bc-f15a25be9588
Regards,
Skumar

BPM Design using sync-async bridge

Hi Arpit,
Below mentioned is an overview of the process flow which we are trying to implement.
1. A synchronous interface takes in the request
2. After the mapping, a file is created
3. Another file adapter reads this file and sends a message back to the sync interface. This step is to make sure that the file is created
I'm using a sync-async bridge for this process, since file creation and reading processes are asynchronous and the request/response is synchronous.
Can somebody help me by telling how to design the BPM. How many send and receive steps are required etc?
Thanks,
Sandeep
 | Request | | | | | | | |
 |--------->| | | | | | |File |
HTTP| |Sync|--->|Mapping|--->|Async|--->|Adapter|
 |<---------|I/f |<- | | |I/f | |(write)|
 | Response | | | | | | | |_______|
 | |
 | |
 | ____|___
 || | | | | |
 -|Async |<--|File Adp|<---|Folder |
 | I/f | |(read) | |________|

Hi
>>I have to map the incoming xml from HTTP to another format before creating the file.
Ya then u can use the transform Step in between the
sync Recv ---> Transform ---> Send to File System
>>Once a file is read, that interface has to send an acknowledgement message telling the status.
Wht type of acknowledgement msg telling the status.
I think u can add another element in ur created file payload like Status: Created (ConstanT)
Then u can map the payload of the readed file with tis payload having Ststus init.Fo this u need a Transformation Step.
BTW i was searching some previous blogs and i got this and it is bit related to ur scenario.Go thru this
/people/sriram.vasudevan3/blog/2005/01/11/demonstrating-use-of-synchronous-asynchronous-bridge-to-integrate-synchronous-and-asynchronous-systems-using-ccbpm-in-sap-xi
Hope it helps.
Regards
Arpit Seth

Sync-Asyn Bridge

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