File Poller and Write File Activity

In this tutorial we will create a BW process as shown in the images below.
Design

Advance Tab

Here any change to file create, modify and delete is picked and a new process instance is created.
Include Sub-Directories: The current tutorial is listining to path “F:\Tibco\Projects\TibcoAZ\FilePallet”; when this option is checked File Poller will poll the files in its sub-directories. Note: Pattern to poll for specific file in the sub-directories will be same to the wildcard spcified in File Name in configuratin tab.
Mode:In this tutorial we are listing to any changed in files. Use “only-directories” to look for changes to directories and
“files-and-directories” to look for changes to both files and directories

Write File Activity
Configuration Tab

Append: Append contents; else when unchecked it will overwrite existing file.
Create Non-Existing Directories: If folder Projects and TibcoAZ are missing in the given path “F:\Projects\TibcoAZ\FilePallet\WriteToFile.txt” when Write File activity is executed the missing folder are automaticly created. If unchecked, IOException is genrated if floder is missing. Note: This is only applicable to folders not to file.

Input Tab

Note: In this tutorial if file name specified in Write File activity is in the same location been listened by File Poller then an endless loop will be created.