Dummy XML not getting generated from empty file by J2EE adapter module

Question

Hi All,
i know when XI gets an empty input text file, it does not generate a send message for it in sender communication channel.
in my scenario, if i get a file with data, i have to generate an XML message for it using file content conversion - this i have done...........
but if i get an empty text file, then i have to generate a dummy XML send message for it for my BPM.......
So i made a J2EE adapter module to generate dummy xml for empty file.....<b>when i give a file with data in it, then my adapter module is called..... but when i give an empty file, then my adapter module is not called</b>.........
<b><i>Can anybody suggest why the module processor is not invoking my customer-adapter module when an empty file is given.............but the module processor is invoking my customer-adapter module when a file with data is given</i>.</b>
Thanks,
Rajeev Gupta

Answer 1

Hi Amit,
Below is the code of process method which i used:
<i>public ModuleData process(ModuleContext moduleContext,
  ModuleData inputModuleData)
    throws ModuleException
Object obj;
Message msg_audit;
AuditMessageKey amk;
try
File f = new File("/components/XITEMP/sample/PWC/check.txt");
PrintStream ps;
if (f.canWrite())
FileOutputStream fos =new FileOutputStream(f);
ps = new PrintStream(fos);  
ps.println("Testing");
ps.close();
fos.close(); 
else
  f = new File("/components/XITEMP/sample/PWC/check4.txt");
  if (f.exists() ==false)
  f.createNewFile();
obj = inputModuleData.getPrincipalData();
if (obj!=null)
msg_audit = (Message)obj;
amk = new AuditMessageKey(msg_audit.getMessageId(),AuditDirection.OUTBOUND);
Audit.addAuditLogEntry(amk,AuditLogStatus.SUCCESS,"FileCheck: Module called");
else
  String str = new String();
String str1 = new String();     
              str1="<?xml version=\"1.0\" encoding=\"utf-8\" ?>";
             str1+="<ns:MT_PWC_RECORD xmlns:ns=\"urn://PWC_SR3_01/PWC/Customer\">";
         str1+="<RECORD_SET>";     
             str1+="<RECORD>";
         str1+="<RECORD_DATA>BLANK_FILE</RECORD_DATA>";
         str1+="</RECORD>";
         str1+="</RECORD_SET>";
         str1+="</ns:MT_PWC_RECORD>";     
str=str1; 
inputModuleData.setPrincipalData(str);
catch(Exception e)
try
File f = new File("/components/XITEMP/sample/PWC/check.txt");
PrintStream ps;
if (f.canWrite())
  FileOutputStream fos =new FileOutputStream(f);
  ps = new PrintStream(fos);  
  ps.println(e.toString());
  ps.close();
  fos.close(); 
catch(Exception ex)
return inputModuleData;
   }</i>
in the above methood, i  used file operations at start just to see whether the module is getting invoked or not...so when i give a data file, then the file operations are performed and messages are written in audit log.........but when i give an empty file, then the file operations are not performed - meaning the module is not getting invoked........
Thanks,
Rajeev Gupta