Sync/Async Bridge without Asynchronous Send / Receive Steps

Hello together,
we have a synchronous HTTP <--> RFC Scenario using a sync/async Bridge in BPM with the following characteristics:
1. HTTP Payload is received (opens Sync/Async bridge)
2. lookup is done in an LDAP System (we use an UDF here)
3. Customzied JCo is called which takes the XML String as input parameter (done by Java Mapping)
4. Return Value of JCo then is delivered back to HTTP Client (closes Sync/Async Bridge)
--> No RFC Adapter is used here as the provided JCo does all the parsing
When testing the sync/async bridge is started but we receive an timeout after 30 sec.
Could it be that the sync/async required exactly a pair of async send and receive steps (which we do not have in our scenario and which we do not need)?
This would be a problem, as we have to use BPM in this synchronous scenario. Do you have any idea?
Thank you very much for your help.

Thank you for your reply, but I think you misunderstood me. Please let me try to clarify once more:
1. Synchronous HTTP Sender Interface (Request/Response) opens Sync/Async Bridge
2. LDAP Lookup is done by UDF using the Request Message in Transformation Step
3. Switch is done based on result of Lookup
4. Branch 1 in switch calls customized JCo with Java Mapping in Transformation Step (Request Message as input, Response message as output)
5. Response message (delivered from JCo Call) should close the Async/Sync Bridge and be send back to HTTP Sender
--> We have no async send / receive steps in this scenario.
The customized Jco has been provided by an external partner as there is lots of parsing logic implemented. So we want to connect to the backend SAP system using this JCo and not via a send step.
My key qestion is therefore: Is it absolutely necessary to use exactly a pair of async send / receive steps in a sync/async bridge?
In this case we have to look for another design concept without BPM which would make the solution very difficult I think....

Similar Messages

Sync / Async Bridge without BPM

Hi All,
I was trying to implement the Sync / Async Bridge without the BPM. I am trying a HTTP to JMS Sync / Async Bridge. I have followed the following link and done exactly the same as shown in the document
http://help.sap.com/saphelp_nw04/helpdata/EN/45/20d2b4c20a0732e10000000a155369/content.htm
I have used a Java application which will poll the request queue and then place the message in the response queue with the same correlation ID frm the request queue.
After following the above link the response message was not appearing, the message were going to deilvering status and after some time i found that they were cancelled without errors
I searched in the forums for many solutions but what i found was this thread which stated that since the XI message ID is 32 bytes and Correlation ID is only 24 bytes its difficult for Modules to identify the response since the correlation is truncated.
JMS: Synch/Async bridge - how to configure
I tried changing the configuration in the reciver JMS channel to XI Conversion ID instead of Message ID and this also doesnt give me fruitfull results. The message was not being placed in the request queue, it gave an error saying that the conversion id was null. Though in the thread it seems to have worked for him.
After this i planned to dynamically generate a Correlation ID (a dummy one) of 24bytes and i sent it to the request queue this time the message was retrived from the response queue only to find that the correlation ID this time has been converted to some other format
Corrletion ID sent to the request queue: ABCDEFGHIJKLMNOPQRSTUVWX
Corrlation ID coming in the response queue : 4142434445464748494a4b4c4d4e4f505152535455565758
Can anyone put some light on what i exactly need to do or tell me why the conversion ID worked for Daneil in the thread and it gave me an error saying that the Conversion id is null
Rgds
Aditya

Hi Prateek,
This is what was tried in my first case. I did exactly what was given in that link.But since the Message id being 32 bytes and length of correlation id is 24 bytes id is getting truncated.
So its not working fine.
@ke i am having a look at the note will update you on this
Thanks for your response
Rgds
Aditya

Async-Sync-Async Bridge Without BPM

HI Folks,
I have a requirement as
u201CAn Asynchronous SOAP request is triggered to PI and then should get records from a (JDBC)database and write the result to a fileu201D
It is of Aync-Sync-Async Bridge and i have to do without BPM
I know by using some module parameters at sender communication channel we can do this.
But my query
1)Is that for SOAP sender communication channel can we provide the same module parameters
Number - ModuleName - Type - ModuleKey
1- AF_Modules/RequestResponseBean - Local Enterprise Bean - 1
2- CallSapAdapter-Local Enterprise Bean - 2
3-AF_Modules/ResponseOnewayBean-3
Parameters
ModuleKey - ParameterName - ParameterValue
1 - passThrough - true
3-receiverChannel - Receiver File Adapter Name
3-receiverService - Receiver Business Service/ System
2) Does the SOAP support the without BPM scenarios
3)Scenario is like Soap --> JDBC -->File (Async - Sync - Async) and how abt for Soap --> RFC -->File (Async - Sync - Async)
Thanks in Advance
Lemon

For your requirement , you can handle this scenario without BPM in two ways.
1) Async sync bridge without BPM. You are going to use request response bean and one way response bean module to achieve this. very simple. See this [link|http://wiki.sdn.sap.com/wiki/display/XI/File-RFC-File(Without%20BPM)]
In the sender SOAP channel you have to configure first request response bean, second callsapadapter and third onewayresponse bean. Refer this link. Simply follow file sender configuration for your soap sender or RFC sender.
Note: one receiver agreement , one receiver determination, one interface determination. only two receiver channels one jdbc and one file.
2) You can create SOAP to File asynchronous. Using quality of service EO and creating service interface asynchronous mode. In the mapping area do JDBC lookup. If your version is 7.1 then this lookup is available. This is pretty simple no need to do async to sync pattern.
Hope that helps.

Sync/Async JMS without BPM - No receiver specified in message object

Hi All,
My scenario is Proxy - JMS - Proxy. I have chosen to do this without BPM and had followed closely to the instructions given in various help documents/blog/forum threads. During testing, the proxy returns a system fault 'No receiver specified in message object'. In RWB it indicates that the correlation is correct and the JMS Receiver adapter is getting the response, below is part of the audit log:
2009-08-03 18:12:32 Information WRB: retrieving the message for de80831d-97f5-08f1-bdaf-00145e6883af ...
2009-08-03 18:12:33 Information WRB: retrieved the message: ApplicationResponse
2009-08-03 18:12:33 Information WRB: leaving WaitResponseBean
2009-08-03 18:12:33 Information MP: leaving
2009-08-03 18:12:33 Information The message was successfully delivered to the application using connection JMS_http://sap.com/xi/XI/System.
2009-08-03 18:12:33 Information The message status was set to DLVD.
When I check SXMB_MONI in XI-ABAP, I see 2 messages with status 'System Error - Restart not possible' and 1 with status 'Log Version'. The message with status 'Log Version' is the respond. The other 2 messages has the following error:
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
- 
- <SAP:Error xmlns:SAP="http://sap.com/xi/XI/Message/30" xmlns:SOAP="http://schemas.xmlsoap.org/soap/envelope/" SOAP:mustUnderstand="1">
<SAP:Category>XIServer</SAP:Category>
<SAP:Code area="MAPPING">NO_RECEIVER</SAP:Code>
<SAP:P1 />
<SAP:P2 />
<SAP:P3 />
<SAP:P4 />
<SAP:AdditionalText />
<SAP:Stack>No receiver specified in message object</SAP:Stack>
<SAP:Retry>N</SAP:Retry>
</SAP:Error>
It seem to me that the system does not know where to go/what to do next after returning to the JMS Receiver adapter. I am at a lost what could have gone wrong. Here is how I've done my configuration.
Repository
- Sync Sender Interface for R/3 Backend
- Sync Receiver Interface for MQ
- Async Sender Interface for the reply
Directory
- 1 CC for JMS Recevier
- 1 CC for JMS Sender (for the respond)
- 1 CC for Proxy Sender
- 1 Interface Determination
- 1 Receiver Determination
- 1 Receiver Agreement for JMS Receiver
- 1 Sender Agreement for the reply
Any help is appreciated. Thanks.

Hi Prateek,
This is what was tried in my first case. I did exactly what was given in that link.But since the Message id being 32 bytes and length of correlation id is 24 bytes id is getting truncated.
So its not working fine.
@ke i am having a look at the note will update you on this
Thanks for your response
Rgds
Aditya

Correlation issue due to async receive with sync/async bridge

Hi,
I have an Integration process (PI 7.0), which consists of sync/async bridge.
One of the step in the process is async receive.
To avoid any issue with correlation, i placed the whole process (except start and end) into a block and assigned a local correlation to it.
The Sync receive in sync/async bridge will activate the correlation and one of the async receive step in the process will use that correlation.
Normally it worked fine. But during one execution (just for testing), the async receive step did not take input to the process, and so the process execution replied "Timeout in Pipeline". But thereafter i cannot execute the process successfully, even when async takes the input.
And in the BPE monitoring, in workflow log, the process Instances are still "In Progress".
Do we have any way to stop these processes and unlink any possible correlation related to them?

Hi,
A local correlation is only valid for the block for which it is defined. Once the block has been processed, the correlation is no longer active.
If the validity of a correlation is not restricted correctly, the following problems can occur:
¡ Messages that satisfy an active correlation are continued to be assigned to a running integration process. The integration process no longer processes the messages because no processing steps are waiting for the messages.
¡ Messages that satisfy an active correlation are continued to be assigned to a running integration process, instead of starting a new integration process.
You can avoid these problems and make it easier to follow how messages are processed by restricting correlations correctly to the required block.
Please check the local correlations for it
With SXMB_MONI_BPE you can monitor these instances.
But to kill it you need to use tcode SWWL. You can go to SXMB_ADM_BPE to check the BPM related settings.
Thanks
swarup
Edited by: Swarup Sawant on May 31, 2008 1:40 AM

File based Sync-Async Bridge

Hi All,
I have a scenario where a file is available in a shared folder.
This file needs to be picked by a RFC Function module called in a Synchronous mode and the contents of the file needs to be displayed as the output of this RFC.
Is this achievable using Sync-Async Bridge.If so can someone explain me the steps to achieve the same?

If i were to open a Sync-Async bridge, I need to do the following
Step 1: Receive step to open the sync/async bridge
Step 2:Asynchronous send step
Step 3:Receive step
Step 4: Send step to close the sync/async bridge
In my scenario.
Step 1: Receive the RFC's request message
Step 2: ????
Step 3: Get the message from the file
Step 4: Transform the file's message to RFC's response message
Step 5: Send the RFC's response message
Moreover file adapter works in a polling mechanism..

Correlation issue in JMS adapter - SYNC/ASYNC scenario without BPM

Hi,
I am working on a SYNC/ASYNC scenario with JMS adapter without using BPM. My scenario is SOAP<>PI>JMS. I configured the interface as below:
1. SOAP Sender channel
2. JMS Receiver Channel writing to Queue A.
 Module used: a. RequestOneWayBean
 b. WaitResponseBean
 Correlation Settings:
 a. Set JMS Correlation ID to "XI Message ID"
 b. Store JMS CorrelationID of request (Checked)
 c. Set JMS Property to "JMS Correlation Id"
 d. Value = "XI MEssage ID"
3. JMS Sender channel reading from queue B ( I am exporting the message from queue A and importing into queue B)
 Module used: a. NotifyResponseBean
 Correlation Settings:
 a. Set XI MEssage Id to "GUID"
 b. Set XI Conversation ID to "Stored JMS COrrelationID of Request"
I can see the cid in the message from queue A. But I observed thhat the header format of the message in Queue A is "MQSTR".
ISSUE:
1. While writing the message to queue A, below adapter log details(part b) concerned me:
 a. Message '8747a7c2-2b06-11df-8055-005056a70ed6' successfully processed by channel
 b. Could not create acknowledgements for message '8747a7c2-2b06-11df-8055-005056a70ed6'
I am not sure why I am receiving the message that " could not create acknowledgements"
2. While reading the message from the sender channel,I consistently get the error message as below:
 a. XI message ID corresponding to JMS message with ID 'ID:414d51205341504449442e514d202020c67b954b20005602'
 will be created as a new GUID with value '21bca916-424f-41f6-3347-c71090392b58'
 b. Error while processing message '21bca916-424f-41f6-3347-c71090392b58'; detailed error description:
 com.sap.aii.adapter.jms.api.channel.filter.MessageFilterException: found no correlation ID: RecoverableException:
 found no correlation ID at com.sap.aii.adapter.jms.core.channel.filter.SendToModuleProcessorFilter.filter(SendToModuleProcessorFilter.java:105) ...
Below are the blogs which I have already gone through:
1. JMS Synchronous Scenario without BPM - Correlation Settings and Transactional JMS Session
http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/b028f6f6-7da5-2a10-19bd-cf322cf5ae7b
2. Note: 1086303
3. Sync / Async Bridge without BPM
In the note, they mentioned something about header being "MQRFH2". BUt in our case, the header is "MSSTR". Not sure whether it makes any difference.
Please help.
Edited by: GP on Mar 9, 2010 4:24 AM

Hi,
detailed error description:
com.sap.aii.adapter.jms.api.channel.filter.MessageFilterException: found no correlation ID: RecoverableException:
found no correlation ID at com.sap.aii.adapter.jms.core.channel.filter.SendToModuleProcessorFilter.filter(SendToModuleProcessorFilter.java:105) ...
This error would generally arose when there are multiple messages, got stuck in the outbound queue. Try to stop both the sender and receiver JMS comunication channels and clear both the inbound and outbound queues.
Once all the messages in the queue are cleraed, try posting the message again.
Regards,
Swetha.

When is Sync-Async bridge used in BPM? Kindly help!

Hi Experts,
I am finding it difficult to understand when to use Sync-Async bridge. In the example given by SAP it is not clear what they mean by following:
1. We use Sync-Async bridge when the sender system is Sync and Receiver system is Async. What do you mean when you say receiver is Async?
2. When Receiver is Async then how will it send a response?
3. Can somebody explain the "Wait" mechanism used to get the response?
4. Can we use Sync-Async bridge when both the sender and receiver systems are Sync? How?
Please help me with the answers
Thanks & Regards,
Gopal

Hi,
In a simple way ill tell you. Suppose we need to check the reservation seats of Train or flite then the sender(our) side is Asynchronous and receiver(server) side is Synchronous, because the receiver(server) takes the request and send the response(seats r avail or not).
For your second question
If the receiver is Async then it doesn't send the response.
For your fourth question chk this
https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/1403 [original link is broken] [original link is broken] [original link is broken]
For more info Check this links
Demonstrating Use of Synchronous-Asynchronous Bridge to Integrate Synchronous and Asynchronous systems using ccBPM in SAP Xi
http://help.sap.com/saphelp_nw04/helpdata/en/83/d2a84028c9e469e10000000a1550b0/content.htm

RFC Sender to start Sync/Async Bridge

Hi,
I'm trying to start a Sync/Async Bridge calling RFC. When importing RFC into Integration Repository, by default it creates two Message Type for request and response (RFCNAME and RFCNAME.response).
My scenario is configured as follows:
Integration Repository
The starting step in BPM is configured with an abstract synchronous interface (output message is RFCNAME and input message is RFCNAME.response).
Integration Directory
Sender Agreement: sender service is R3 business system (from SLD), interface is the RFC program name (not an interface).
Receiver determination: sender service is the R3 business system, the interface is RFC program name, an as configured receiver the BPM.
Interface determination: In the configured inbound interface for the receiver (BPM) I configure the abstract synchronous interface
My problem is that when calling the RFC, the outbound message is received into XI but does not reach BPM: NO_RECEIVER_CASE_ASYNC. Can you help me please?
Thank you,
Gari.
(Sorry for my english!!!)

Of course it is possible. Some considerations, though:
1. you said that receive/send steps of BPM are configured with RFC and RFC.Response messages. However, by default, the RFC interface cant be used as Abstract Async. You have to explicitely create those abstract async interfaces. Have you done that?
2. What extra steps do you have in BPM? I mean, you dont need to create abstract interfaces based on message type of RFC. If you have the message type of your receiver, you can perform mapping outside of BPM, and all abstract async interfaces could be done refering to the receiver message types.
Regards,
Henrique.

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

BPM - Receive Sync/ASync Bridge Problem

Hi,
I am creating a scenario for an inbound Synch request to be serviced by a BPM process.
Here is the problem that I am facing while trying to configure the Receive Step
- I created a Message Interface defined as Abstract Synchronous.
- I created a process model and put in a Receive Step: Mode - Opens S/A Bridge, Synchronous Interface - defined as above.
- I define a container with Abstract type. But when I try to locate the above defined Abstract Synch message interface, I cannot find it.
- As a workaround, I create another Abstract Message Interface defined as Abstract ASynch.
- I create a container with this Abstract ASynch message type.
- I use this container in the Receive Step.
But activating the Business Process gives the error:
Message to be received and Synchronous Interface do not have identical types.
Can someone give me the correct procedure to configure the Sync / ASync Bridge ? thanks,
-Manish

Dan,
This is the link you are looking for?
http://help.sap.com/saphelp_nw04/helpdata/en/83/d2a84028c9e469e10000000a1550b0/frameset.htm

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

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

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

Double Sync-Async Bridge

Hi guys,
One simple question:
Is it possible to have two S/A Bridge in a single BPM? It should be quite simple.....
Thanks in advance

Hi,
You are right in real time this will be not possible to even use the two S/A in one process.
But you could design the process in such a way that
lets assume you have one sender A and two receiver B & C
A--Synchronous
B---Async
C---Async
Now the scenario is like
A-request -
> B as well as for -
> C.
here B is async so you need to built A to B as S/A bridge but as I had said simultaneously it need to send the data to C which is also async then you need to use Fork to create two branches one for B and one for C.
Here you need to create Dummy response for A as B or C will not send any response.
This scenario is very rare to be practical..but there is chance that you could design it in BPM.
I am pretty sure about the scenario will not work successfully as there will be 3 ports opened at a time and multiple resources will be consumed.
1. Define a Receive Step to Open the Sync/Async Bridge
2. Define fork with 2 branch one for A and one for B
-One Branch-
Define an Asynchronous Send Step for B
Define a Receive Step for B
-2nd Branch--
Define an Asynchronous Send Step for C
Define a Receive Step for C
4. Define a Send Step to Close the Sync/Async Bridge
Here if you see you have two Sync/Async bridges one for A to B and another for A to C.
I never have implemented it just giving you the hint.
Thanks
Swarup

Sync/Async Bridge without Asynchronous Send / Receive Steps

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