Adapter Module to terminate module chain processing PI7.1 (File Adapter)

Question

Hi All,
I have a file in a FTP location that needs to be picked up ONLY after a trigger file is found.
I have tried 2 ways using OS commands and BPM but both do not suit my need .
I have now decided to write a java adapter module. This is in PI 7.1.
Folder :          \public\cwc
File to be picked up : abc.txt
Trigger file :              abc.trg
Polling Interval :         60 secs
1. Module checks for abc.trg in the folder \public\cwc
2. If found, do nothing and process normally
3. If not found, write an error to the log and stop the module chain (callsapadapter) from processing further. The abc.txt file should not be picked up.
Is this possible ? Any code snippets? What command will stop or timeout the communication channel processing?

Answer 1

Hi,
What you can do is :
1. If found then send the regular xml file from the adapter module.
2. if it is not found then alter the message so that the log xml file appear as the output of the module.
3.in the IR make a data type such that its is having both i.e. either the regular xml or the log fields in two seperate messages (optional)
e.g.
<File>   ... 1. .1
--<RegularFile> .. 0..1
--<logfile>  .. 0..1
Dont think of stopping the process by calling some modules.Instead let the process complete by letting the mapping split.
If the Regularxml comes ,then route it to the regular folder , but if the log comes then let the other message go to the log folder.
Regards
Progirl