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KIT_INC · Posted: Tue Oct 04, 2011 8:00 pm Post subject:

I am using WMB 61 and testing the usage of file nodes. I have done two tests and need some help to understand the results

Test 1 is fileinput --> compute --> fileoutput
FileInput node is reading a xml file as a whole, xml is transformed into TDS message and output to a file uisng fileoutput node. The "End of Data " terminal of the fileinput node is connected to the 'Finish File ' terminal of the fileoutput node. This works fine.

Test 2 is FileInput node --> compute (transform and route) --> MQOuptut or FileOutput. The "End of Data " terminal of the fileinput node is connected to the 'Finish File ' terminal of the fileoutput node.

A decision is made based on the xml input file to either write the output to a file or to a queue (but not both).
For this test the ESQL in the compute node is something like
If condition 1 then
propagate to terminal 'out' ---> connected to FileOutput node
if condition 2
propagate to terminal 'out1' ---> connected to MQOutput node
return false;

But the flow wll fail when the output is going to the MQOutput node. A debug shows that the "End of Data " message will trigger the 'Finish File' process and there is no file for fileoutput node to write. If I remove the connection between the "End of Data " terminal of the fileinput node to the 'Finish File ' terminal of the fileoutput node. it will work.

I like to kown if I am doing the right thing ? According to the info center
Finish File is
The input terminal that accepts a message that triggers the final processing of a file.

Now I do not have 'finish file' connected, will the file written by file output be properly closed ?