J2SE XML to Flat File Content Conversion

Question

Hi
I've currently got a scenario which sends a flat file to the integration server, it gets mapped and sent to a receiver adapter on a deployed j2se engine.
I'm now trying to convert the xi-xml structured file to a flat file again on the j2se side (the same flat file format it originally had).
My original flat file looks like this -
477
477=AA1
My xml file looks like this -
<?xml version="1.0" encoding="UTF-8"?>
<ns0:ResultMessage xmlns:ns0="urn:xxxx-com:a_test_j2se_filetofile">
<Item>
          <field1>477</field1>
</Item>
<Item>
          <field1>477</field1>
          <field2>AA1</field2>
</Item>
</ns0:ResultMessage>
I am using these content conversion parameters:
xml.addHeaderLine=0
xml.fieldSeparator==
xml.endSeparator='nl'
I get this error on the integration engine (sxmb_moni):
Error while sending by HTTP (error code: 500, error text: Internal Server Error:java.lang.NullPointerException) (See attachment HTMLError for details)
and the j2se adpater log says this:
17:16:32 (4120): Message "13b9d644-54c9-4ffb-0c40-db4c14458d77" of type "application/xml", kind "B" received
17:16:32 (4124): Parsing XML message
17:16:32 (4131): ERROR: Message processing failed with "java.lang.NullPointerException"
What am i missing?

Answer 1

So, now... I did a test configuration in XI and sent your test-payload...it worked.
The J2SE adapter configuration:
File adapter java class
classname=com.sap.aii.messaging.adapter.ModuleXMB2File
version=30
mode=XMB2FILEWITHCONVERSION
#Adress for XMB endpoint -
XI.httpPort=8111
XI.httpService=/file/receiver
#File Adapter specific parameters -
file.createDir=1
file.targetDir=c:/transfer/inbound
file.targetFilename=xmboutput.txt
#file.writeMode=append
#file.writeMode=overwrite
file.writeMode=addCounter
file.counterMode=immediately
#file.counterMode=afterFirst
file.counterSeparator=_
file.counterFormat=00000
file.counterStep=1
#File Content Conversion specific parameters -
xml.addHeaderLine=0
xml.fieldSeparator==
xml.endSeparator='nl'
And here the configuration of the receiver communication channel in the integration directory:
Adapter Type: XI
Receiver
Transport-Protocol: HTTP 1.0
Message-Protocol: XI 3.0
Adapter-Engine: Integration Server
Adressing-Type: URL Address
Target Host: <yourJ2SEip>
Service Number: 8111
Path Prefix:http://<yourJ2SEip>:8111/file/receiver
Authentication Data
Logon data for non-SAP systems
User
Password
That's it... sent your payload and got the wished result:
477
477=AA1
Regards,
Heinrich