Comm Channel Variable Substitution - Use of wildcards to reference payload

Question

Hi!
I am building a solution to write out tagged / XML IDOCs to a file adapter. I am using variable substitution to build the file name to include the message type, sending partner etc... in the target directory and filename.
Is there a way to wildcard nodes in the variable substitution? For example:
<i>Currently</i>
payload:WMMBID01,1,IDOC,1,EDI_DC40,1,RCVPRN,1
<i>Desired</i>
payload:*,1,IDOC,1,EDI_DC40,1,RCVPRN,1
where * is any wildcard.
Reason is that we have multiple IDOC types and I want to avoid having to create multiple communication channels.
Help appreciate and rewarded. Many thanks, Duncan.

Answer 1

Hi Duncan !
You can create the desired target filename and target directory by using dynamic configuration via java UDF in mapping. This allows you to create a target filename and/or directory based on a string..then you could use only one comm channel.
to access info:
// access dynamic configuration
      DynamicConfiguration conf = (DynamicConfiguration) param.get(
          StreamTransformationConstants.DYNAMIC_CONFIGURATION);
DynamicConfigurationKey KEY_FILENAME = DynamicConfigurationKey.create("http://sap.com/xi/XI/System/File","<b>FileName</b>");
      // read value
      String Filename = conf.get(KEY_FILENAME);
// to write value:
conf.put(KEY_FILENAME, "MyNewFileName");
Regards,
Matias