Empty file processing

Hi All,
We are using PI 7.0 with SP 18. In one of our file to Idoc scenarios when posting empty files the file is picked up and archived but we are not getting any logs in moni. Further I couldnt find any option in the sender file adaper for empty file processing.
Can anyone please clarify on this?

hi,
>>>when posting empty files the file is picked up and archived but we are not getting any logs in moni.
this is good isn't it ?
>>>Further I couldnt find any option in the sender file adaper for empty file processing.
either you don't have correct SP level or you didn't import sap basis content approriate for your SP
Regards,
Michal Krawczyk

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Hi Frnds,
1) I have one doubt XI will support Empty file processing. Suppose in my scenario
In sender side i am having Empty file i want to process this file , what are necessary steps i need to take.
2) In my scenario XI will support only 10mb file processing at a time, But in sender side i am having 20 mb file. How to transfer the file without splitting.

hi raja
Regarding empty file processing
Handling of Empty Files
Specify how empty files (length 0 bytes) are to be handled.
○       Do Not Create Message
No XI messages are created from empty files.
The files are processed according to the selected processing mode.
For example, if the processing mode is Delete, empty files are deleted in the source directory.
○       Process Empty Files
XI messages are created with an empty main payload.
The files are processed according to the selected processing mode.
○       Skip Empty Files
No XI messages are created from empty files.
Empty files are skipped and remain in the source directory.
Also refer this link
http://help.sap.com/saphelp_nw70/helpdata/EN/ae/d03341771b4c0de10000000a1550b0/frameset.htm
This is done at ID in sender File Adapter Configuration of the communication.
Regards
Ramesh P

How to Handle Empty Files

Hi Experts,
I am doing File to File Scenario.
If my Sender systems file is Empty , that means there is no Records in the File .
How to Handle Empty Files ??????????
I want to know For both Sender and As wel as Receiver Adapters
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See if u are having a sender file adapter and the file is empty u can tell the if it has to 'Process the empty file' or 'Skip the empty file processing'.
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Hi All,
if i give an empty text file to a sender communication channel, then no message is generated by XI.
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i am asking this because i developed a J2EE adapter module, then deployed it, then tried to invoke it from sender comm channel but this J2EE adapter module is not getting invoked - this i can tell because i have written the following lines only in Java class process method:
Message msg_audit = (Message)inputModuleData.getPrincipalData();
AuditMessageKey amk = new AuditMessageKey(msg_audit.getMessageId(),AuditDirection.OUTBOUND);
Audit.addAuditLogEntry(amk, AuditLogStatus.SUCCESS,"FileCheck: Module called");
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Hi All,
When i write this code:
try
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 amk = new AuditMessageKey(msg_audit.getMessageId(),AuditDirection.OUTBOUND);
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 FileOutputStream fos =new FileOutputStream(f);
 File f1 = new File("/components/XITEMP/sample/PWC/check1.txt");
 ps = new PrintStream(fos);
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 f1.createNewFile();
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 else
 File f2 = new File("/components/XITEMP/sample/PWC/check2.txt");
 if (f2.exists()==false)
 f2.createNewFile();
 } 
it works fine......it creates the file check1.txt
but when i place the italiced code in this format:
 try
 obj = inputModuleData.getPrincipalData();
 msg_audit = (Message)obj;
 amk = new AuditMessageKey(msg_audit.getMessageId(),AuditDirection.OUTBOUND);
 Audit.addAuditLogEntry(amk,AuditLogStatus.SUCCESS,"FileCheck: Module called");
 catch (Exception e)
 try
 File f = new File("/components/XITEMP/sample/PWC/check.txt");
 if (f.canWrite())
 PrintStream ps;
 FileOutputStream fos =new FileOutputStream(f);
 File f1 = new File("/components/XITEMP/sample/PWC/check1.txt");
 ps = new PrintStream(fos);
 if (f1.exists()==false)
 f1.createNewFile();
 ps.println("Testing");
 ps.close();
 fos.close();
 else
 File f2 = new File("/components/XITEMP/sample/PWC/check2.txt");
 if (f2.exists()==false)
 f2.createNewFile();
 catch(Exception ex)
it doesnot create the file check1.txt......
Can anybody suggest why in the exception block this italiced code is not working........means it is working in try block of try{}catch{} block.......but it is not working in catch block of try{}catch{try{}catch{}}
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Rajeev Gupta

Empty BPEL process getting lost for multiple file reads

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I have a empty BPEL process polling for files. It works fine when 1 or 2 files are put into the read folder.
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Empty File has to write after Message Processing in File Adapter..!!

Hi,
File to File Scenario.
Once the file is processed and placed in the receiver folder, I need to generate one empty file with the original file name but with different extension (DON). This is used to indicate that the full file is written in the folder.
Example:
Original file has to write like "Output_Final.CSV"
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Deepthi.

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I hope you have set the option of Write Empty File if not try this and still doesnot work
then need to look for java or ABAP mapping
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Re: How to create empty Payload
Rajesh

Processing Empty files

Hi Friends,
We got a scenario of processing empty XML files with output as empty files.
Two possible soultions are with the help of custom modules in Sender adapters and by using XSLT mapping by adding the XML tags if the payload is empty.
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Can anyone provide the java coding for this...
system details XI 3.0 ,SP-18.
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Sunil.

Hi Ramesh,
The only option left open to me is using custom module adapters to convert the empty payload to ...
<?xml version="1.0" encoding="UTF-8"?>
<ns0:MT_Source_OB xmlns:ns0="http:
MyNameSapce">
</ns0:MT_Source_OB>
....before the CallSapAdapter.
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Create .txt empty file After Message Processing Command Line Linux command

Hi All,
An empty .txt file has to be created in FTP location(FTP loc c:\xyz\Customer20082910.txt) only after the .dat file has been created(FTP loc c:\xyz\Customer20082910.dat)
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I know that .txt empty file can be created using the After Message Processing Command Line...
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We have a requirement where in we the source system sends an empty file (xml,csv,txt) and XI shud process this file and send it to the target systems.
It is a file 2 file scenario we are using.
I have checked the option in the file adapter which says "process empty files"
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Can some one point me how to process this empty file.
Thanks,
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Handling of Empty Files
Specify how empty files (length 0 bytes) are to be handled.
○       Do Not Create Message
No XI messages are created from empty files.
The files are processed according to the selected processing mode.
For example, if the processing mode is Delete, empty files are deleted in the source directory.
○       Process Empty Files
XI messages are created with an empty main payload.
The files are processed according to the selected processing mode.
○       Skip Empty Files
No XI messages are created from empty files.
Empty files are skipped and remain in the source directory.
These three options are available for handling empty files in XI SP 19 and PI SP 10 and above.
Select the option :Do Not Create Message"

Process 0kb empty file and deliver to target directory

Hello Experts,
We had a requirements to process an empty file handling and send it to the receiver/target directory. We had configured to "Process Empty File" Handling and Write Empty File. The 0KB file polling successfully and archived to the directory with empty payload, but the message output was never created/sent to the target directory. In smxi_moni error message displayed:
<?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="">
<SAP:Category>XIServer</SAP:Category>
<SAP:Code area="MAPPING">CANNOT_READ_PAYLOAD</SAP:Code>
<SAP:P1 />
<SAP:P2 />
<SAP:P3 />
<SAP:P4 />
<SAP:AdditionalText />
<SAP:ApplicationFaultMessage namespace="" />
<SAP:Stack>Unable to read payload from the message object</SAP:Stack>
<SAP:Retry>M</SAP:Retry>
</SAP:Error>
Since this is an empty file, there are no mappings involved. Is there a way to that we could check for 0kb file? If it is empty file, we want to pass/place the empty file to the target directory and if it is not empty, we want the message to process in the standard way.

Hi David,
"Since this is an empty file, there are no mappings involved. "
do you mean you didnt do the mapping at all cos it is empty file ?
though it is empty file still you need to do the mapping as usually,but when you check the option process the empty file both in sender and receiver adapter ,then it will process even an empty file comes.if you dont check these options and you get an empty file during the process then the mapping will fail.
in real time you don't know which one is empty file right,but her you know cos you are placing empty file.
I think you got to do all the steps you do in eneral for a scenario and top on that you have to check process empty file in both sender and receiver adapters,but you may not see the payload in SXMB_MONI.
but search in SDn you get lot stuff.

Process empty file : file (fcc) to rfc

Hi Experts,
I have a scenario where. I have to process files and send it to rfc..
file to rfc scenario...
now basically.. when the file is empty the content conversion does not produce any payload and throws error..
can u pls help me in this?

Hello,
The problem is that XI will pick up th file with empty payload.. but as there is no content in the file...
the content conversion cannot be done
The content conversion will still be done except that it will not output anything. To do this, set your recordset occurrence to * instead of 1
http://help.sap.com/saphelp_nwpi711/helpdata/en/44/6713ec3f914ddee10000000a1553f7/content.htm
and mapping throws error...
Since there is no output, the mapping will really throw an error. What you can do is to place a dummy structure, you can use a two-step mapping to do this, in your operation mapping use Java Mapping as your first mapping and in the second mapping, your actual mapping graphical mapping e.g
1.) Read the inputstream and then check if there is a structure. If there is a structure, the Java mapping just passes it to the outputstream. If it is not, then Java mapping will write the dummy structure into outputstream. (Java Mapping)
2.) Output from 1 is passed to Message Mapping
Can you tell us the reason why empty files are needed to be processed? Because this adds overhead in the AE.
Hope this helps,
Mark

Processing an empty file with file adapter

Hi,
We have a scenario where we are merging multiple files via a BPM. One of the files that we read is a delta file, which at times can be blank/empty. The multiple receive steps in the BPM are in one fork and the end condition is set up so that all the messages are received prior to the transformation step.
When we attempt to read an empty file by activating the adapter, the adapter monitor reads that the message was processed successfully. But, no message is created in XI. Is this correct? If yes, is there any way we can create a message for an empty file w/o using a module to change the contents of the file?
Any suggestions or help is greatly appreciated.
Thanks in advance.
Best Regards,
Duke

Hi Duke,
One suggestion:
You can construct a message with some fields and use exists() function in mapping.
try this link:
http://help.sap.com/saphelp_nw04/helpdata/en/db/83f7b88528424c9113b15d5e0fb516/content.htm
Regards
Priyanka

FCC file channel cannot process the empty file

Hi,
My requirement is like that a msg mapping getting two files from different sources and combining into one file and send to the receiver. There is a possibility that any one of the file can be empty.. now problem is how to process the empty file in FCC file channel. When we trying to process the msg we are getting the error msg like "file end of exception". we already check the option empty file in file comm channel....under processing tab. But no use.Though we achieved through a module in sender channel. i want to know how to achieve this through simple content conversion by the FCC channel.
In Content conversion. Record----> item,.. here what is mean ''? 0 to outbound or 1 to outbound?
Regards
Balaji

Hi Balaji,
here what is mean ''? 0 to outbound or 1 to outbound*
means 0 to unbounded.
Let me remind u ... the requirement cannot be achived in this way.. if file is empty.
I hope u already checked the option..
process empty files.
I think u can handle this by, using a adapter module, in which..
if file size(ASMA) is zero.. create a empty message and send it
to the PI.
Babu
Edited by: hlbabu123 on Mar 9, 2010 2:36 PM

File receiver: Create empty file named "start.txt" at end of process

Hello,
When my file adapter finish the generation of file at the receiver server I want to create another empty file at the same directory named "start.txt". The use of that file if for a scheduled task of OS that only starts a process if start.txt file have been created (the process delete that file).
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Then I've seen that I can use ftp command but there isn't ftp command to create a file... only to transfer files.

You can achive this using script.Write a script/bat to creat a file using ftp connection as well in the script and place in xi machine. Using OS command to call the script before the process ends.
Unix OS
Glimpse at OS Command: Yet Another Scenario
Microsoft OS
The specified item was not found.
Regards
Prabhakar

How to Process an Empty File and deliver to the receiver channel

Hello Gurus,
We had a requirements to process an empty file and send it to the receiver channel . We had successfully configured and polling an empty file, but the message output of the empty file was never sent to the receiver channel. Is there any solution to process an empty file and move it to the receiver directory.
XI 7.0 with latest sp
Thanks so much in advanced,
dn

Thanks guys for a quick response!
As mentioned above, we had already configured to handling "Process empty files" and were able to have the files polling successfully. The problem that we are facing is that, the output file were never created or delivered to the receiver directory. We want all files to process and deliver to the recipients even though it is an empty file.
Thanks,
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Empty file processing

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