Module development

Hi all
I had try develop module to use in file adapter but I getting confuse. My module that is no any error and CC log no any error. But nothing happen from my module. So could you please to show me a full example module code? I'm not sure my code that is correct or not.
I had try follow these document
How to create module for J2EE Adapter Engine.pdf and
Step by step guide to develop a module for reading filename in a sender file adaptor.pdf
Everything is fine but no any result from my module....-_-!
Thanks
Park

check the below blogs
Some situations are:
https://weblogs.sdn.sap.com/pub/wlg/3823 [original link is broken] [original link is broken] [original link is broken] [original link is broken]
/people/sap.user72/blog/2005/07/04/read-excel-instead-of-xml-through-fileadapter
/people/william.li/blog/2006/08/28/teched-2006-epi350--developing-and-testing-adapter-modules-in-sap-netweaver-exchange-infrastructure
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/e21106cc-0c01-0010-db95-dbfc0ffd83b3
The how to guide is available at the SAP marketplace.
https://service.sap.com/~sapdownload/011000358700003237612005E/HowToCreateAdapterModules.pdf
and also go through Step by Step guide to develop a module for reading a file name in sender file adapter
http://help.sap.com/saphelp_nw2004s/helpdata/en/43/4bc635ddb13162e10000000a11466f/frameset.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/53/21ee41c334c717e10000000a155106/frameset.htm

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ModuleData.getPrincipalData returns null in the adapter module development

Hi gurus,
i am doing a test on the adapter module development following an article written by William Li:
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/f0ac06cf-6ee2-2c10-df98-e17430ca5949?QuickLink=index&overridelayout=true
my problem is after the EJB has been deployed, it seems that the return of inputModuleData.getPrincipalData() is always null which makes the program can not get the xml payload from the framework.
the main process of the example has been simplified like this:
     public ModuleData process(ModuleContext moduleContext, ModuleData inputModuleData) throws ModuleException {
          Object           obj = null;
          try {
          obj = inputModuleData.getPrincipalData();
          Message     msg1 = (Message) obj;
                XMLPayload xmlpayload = msg1.getDocument();}
          catch (Exception e) {
               ModuleException me = new ModuleException(e);
               throw me;
          return inputModuleData;
after deployed, i get the following error in the adapter monitor of RWB: (my JNDI is testtest)
17.02.2012 17:13:44.643 Information Send binary file "test8.xml" from FTP server "10.18.48.150:/encrypt_test/", size 206 bytes with QoS EO
17.02.2012 17:13:44.644 Information MP: processing local module localejbs/CallSapAdapter
17.02.2012 17:13:44.644 Information Application attempting to send an XI message asynchronously using connection File_http://sap.com/xi/XI/System
17.02.2012 17:13:44.645 Information Trying to put the message into the send queue
17.02.2012 17:13:44.648 Information MP: processing local module localejbs/testtest
17.02.2012 17:13:44.648 Error MP: exception caught with cause java.lang.NullPointerException: while trying to invoke the method com.sap.engine.interfaces.messaging.api.Message.getDocument() of an object loaded from local variable 'msg1'
whereas if the code has been changed like this:
     public ModuleData process(ModuleContext moduleContext, ModuleData inputModuleData) throws ModuleException {
          Object           obj = null;
          try {
               obj = inputModuleData.getPrincipalData();
               Message     msg1 = (Message) obj;
               if (obj != null )
                    XMLPayload xmlpayload = msg1.getDocument();
          catch (Exception e) {
               ModuleException me = new ModuleException(e);
               throw me;
          return inputModuleData;
the file can be read by the file adapter.
i just quite confused that why the return of the getPrincipalData() is null? where is the problem? thanks
Edited by: Stephen Xue on Feb 17, 2012 5:22 AM

I'm gonna reply to myself here. I changed the processing sequence of the adapter modules in the in the FileSender channel so that my module comes first then CallSapAdapter. Then getPrincipalData() contains the message.
Hope this helps someone else.

Help required in File Adapter Module Development

Hi All,
I am working out a File to File scenario where my source file is in some different format. Please find the below sample:
<Root>
<ID>100</ID>
<NAME>SAP</NAME>
<END-Root>
Before taking this into IS, I need to change the file to a proper XML format. I need to replace "END-" with "/".
<?xml version="1.0" encoding="UTF-8" >
<Root>
<ID>100</ID>
<NAME>SAP</NAME>
</Root>
I think I can achive this by developing Adapter Modules. I am new to Adapter Module development.
Can you please tell me if there are any inbuilt Adapter Modules for this. If not please suggest me some relevant blogs to solve this issue. Thanks in Advance.

Hi Phani Kumar
There are more than one ways to do this. As per your timelines and skill set you can decide
1. You can use the XMLAnonymizerBean this is an inbuilt module
Check Stefen's blog
Remove namespace prefix or change XML encoding with the XMLAnonymizerBean
2. You can read this complete file in a single field and then you can create XSLT or Java mapping to parse it in a target XML you desire.
Check these
https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/3823 [original link is broken] [original link is broken] [original link is broken](XSLT mapping)
Java Mapping (Part I) (Java Mapping)
The specified item was not found. (Java Mapping helper DOM)
The specified item was not found. (XML Node into string)
3. You can develop Adapter modules for this
Refer
Check Guides
XI 3.0
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/3bdc14e1-0901-0010-b5a9-a01e29d75a6a
PI 7.0
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/f013e82c-e56e-2910-c3ae-c602a67b918e
PI 7.1
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/00838345-708c-2a10-1199-9514c0b0a91c

PI 7.1 Adapter Module Development - Identify SOAP Fault Message

Hi Experts,
here's a PI 7.1 Adapter Module Development issue I hope you can help me to resolve. It's about identifying SOAP fault messages.

Scenario at a glance:
Adapter Modules placed in the modules chain at request and response time in a synchronous Scenario:
- Request: SOAP Axis to RFC 
- Response and Fault Response: RFC to SOAP Axis

The issue is how to identify SOAP fault message in SOAP Axis Adapter Module in the response message:
The client gets SOAP fault messages like the follwong one:
 <SOAP:Body>
 <SOAP:Fault>
 <faultcode>SOAP:Server</faultcode>
 <faultstring>Server Error</faultstring>
 <detail>
 <ns1:exception xmlns:ns1="http://typen.geschaeftsstelle.pab.barmer.de">
 <ns1:errortext>bla bla bla ...</ns1:errortext>
 </ns1:exception>
 </detail>
 </SOAP:Fault>
 </SOAP:Body>


But when trying to access the tags faultcode and/or faultstring in the adapter module via xPath expressions I do not get them. Obviously the SOAP Fault tags are built AFTER the adapter module has been passed. So my question is:
How can I clearly/uniquely detect a SOAP fault response message (and distinguish it from a "normal" response message) in my SOAP Axis Adapter Module?

I tried it the following way:


// Check Message Payload for SOAP Fault Message via xPath expressions
...
// SOAP Fault Code
zv_xPression = zc_constXPattern.replaceFirst("&", "faultcode");
zv_soapFaultCode = XPathAPI.eval(zv_doc, (String) zv_xPression).toString();
// SOAP Fault String
zv_xPression = zc_constXPattern.replaceFirst("&", "faultstring");
zv_soapFaultString = XPathAPI.eval(zv_doc, (String) zv_xPression).toString();
// check for SOAP Fault Message
if (zv_soapFaultCode.equals("") && zv_soapFaultString.equals("")) {
 // Create Audit Log entry - NOT a SOAP Fault Message
 zv_msgText = zc_constModuleName + " 0190: xPath - OK! This message is NOT a SOAP Fault Message";
 zv_audit.addAuditLogEntry(zv_msgKey, AuditLogStatus.SUCCESS, zv_msgText);
 zv_faultCheck = false;
}
else {
 ...
 // Create Audit Log entry - SOAP Fault Message
 zv_msgText = zc_constModuleName 
 + " 0200: xPath - this message is a SOAP Fault Message. " 
 + " - Faultcode is: " + zv_soapFaultCode 
 + " - Faultstring is: " + zv_soapFaultString; 
 zv_audit.addAuditLogEntry(zv_msgKey, AuditLogStatus.ERROR, zv_msgText);
 ...
}
...

But zv_soapFaultCode and zv_soapFaultString are always empty (with other payload tags this coding works fine).

Any ideas? 
Thanx very much in advance!
Regards,
Volker

Hi Alex!
Like already mentioned I solved my problem by identifying the SOAP exception with the messageClass attribute of the PI message header. Acess code:
try {
String zv_msgClass = zv_piMsg.getMessageClass().toString();
} catch (Exception e) {
zv_msgText = zc_constModuleName
+ " E0110: Message processing terminated."
+ " Reason: Error while getting MessageClass "
+ zv_dataSource
+ e;
// create trace and audit log entry (severity ERROR) for exception
zv_location.errorT(ZV_SIGNATURE, zv_msgText);
zv_audit.addAuditLogEntry(zv_msgKey, AuditLogStatus.ERROR, zv_msgText);
ModuleException me = new ModuleException(e);
zv_location.throwing(ZV_SIGNATURE, me);
e.printStackTrace();
throw me;
} // end of try-catch-block
But I do not think this will solve your problem. I am almost sure, that something in your Axis configuration is wrong/missing. If a handler cannot be instatiated then it really may be missing. Have a look at defaultTrace.trc. Maybe you will find more suitable information about the root cause of your problem. Also have a look at NWA under software components and/or application modules if you can find/see your modules.
But there is a general issue when trying to catch PI fault messages. If e.g. the requestor tries to login with wrong userid/pasword, then you will have no chance to catch this kind of error - at least as far as I know. Because in this very early stage of PI message processing no module is called.
One last question: Did you develop your own Adapter or just an adapter module? In the first case: Is your adapter started and healthy? Have a look at RWB -> communication channel monitoring.
Regards,
Volker

Module Development for XI3.0 Adapters

Hello,
we are currently trying to develop a xi 3.0 adapter module. Modules are a way to expand the functionalities of a xi adapter, in our cas the file adapter.
Our module should be used to perform a more complex transformation from flat file to xml.
We know, that we have to develop the modul as a stateless session bean, and that we have to implement some modul-interfaces.
What we are missing are some examples, code fragments and some more detailed informations.
Anybody out there, who can help us?
Thanks in advance,
Frank Winkler

There's a How-To Guide that describes Module Development (How To Create Modules for the J2EE Adapter Engine )
https://websmp105.sap-ag.de/~form/sapnet?_SHORTKEY=01200252310000071155&_SCENARIO=01100035870000000202
and a sample Module comes with XI. Details are available throught the SAP Help http://help.sap.com/saphelp_nw04/helpdata/en/e9/61e1407e858031e10000000a1550b0/frameset.htm
General info on the Module Processor is here
https://websmp105.sap-ag.de/~form/sapnet?_SHORTKEY=01200252310000071155&_SCENARIO=01100035870000000202
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Hope that's a starting point.
regards,
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Clarification in Module Development

Hello Friends,
 We are working on Module development.We have imported jar files i.e sda files.In ejb-j2ee-engine .xml we have included the following code..
<reference
 reference-type="weak">
 <reference-target
 provider-name="sap.com"
 target-type="service">com.sap.aii.af.svc</reference-target>
 </reference>
Now..We have imported a external DOM4j.jar file..for our programming requirement. My doubt is should i include any piece of code like the above one for my imported jar file?? as we are calling the module from Receiver Communication Channel, it is throwing an error regarding that DOM4j. jar file. Please help me out.
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N.Jayanth Kumar

check this links for reference:
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/02706f11-0d01-0010-e5ae-ac25e74c4c81
https://www.sdn.sap.com/irj/sdn/webinar?rid=/library/uuid/8257ed90-0201-0010-b6a8-e9cd808eb1a9
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/3bdc14e1-0901-0010-b5a9-a01e29d75a6a
note:reward points if solution found helpfull.....
regards
chandrakanth.k

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 <soapenv:Header/>
 <soapenv:Body>
 <ueb:TEBIBrokerInterface_PublishWS>
 <aClientId>TEST</aClientId>
 <aMessage>cid:file.xml</aMessage>
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Hi
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http://www.sdn.sap.com/irj/scn/index;jsessionid=(J2EE3414900)ID1219082550DB01455545497474264448End?rid=/library/uuid/3bdc14e1-0901-0010-b5a9-a01e29d75a6a&overridelayout=true
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http://www.sdn.sap.com/irj/scn/weblogs;jsessionid=(J2EE3414900)ID1219082550DB01455545497474264448End?blog=/pub/wlg/10319
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http://help.sap.com/saphelp_nw04/helpdata/en/8b/895e407aa4c44ce10000000a1550b0/frameset.htm
The PDF
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available at service marketplace
https://websmp106.sap-ag.de/~form/sapnet?_SHORTKEY=01200252310000071155&_SCENARIO=01100035870000000202
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Message was edited by: Amol Joshi

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Hi,
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