IBM BPM, V8.0.1, All platforms > Authoring services in Integration Designer > Services and service-related functions > Access external services with adapters > Configure and using adapters > IBM WebSphere Adapters > FTP > Overview of IBM WebSphere Adapter for FTP > Technical overview > Inbound processing

File retrieval

During inbound processing, you can manage the retrieval of the files by using the Time interval for polling unchanged files property. This property helps you to retrieve only those files which are not changed during the specified time interval.

If the time difference between the last modified timestamp and the current system time is greater than the value set in FileUnchangedTimeInterval, then such files are polled. In addition to verifying the files that are not changed during the time interval, the adapter also verifies if there is a change in the file size before polling a file in the event directory. However, the value of the file size attribute is dependant on the operating system and the FTP server used.


File retrieval based on time interval

The Time interval for polling unchanged files property monitors the changes to files in the event directory for the specified time interval. When you configure this property, the adapter polls the files that have not undergone any change during the time interval. Although the adapter polls the files that are currently being edited, any unsaved content will not be processed during the event processing. This configuration prevents occurrence of any erroneous results.

When the adapter polls the event directory, it uses this property to check if a file has been modified during the specified time interval. The adapter uses the lastModifiedtimestamp value of the files to determine if a file has changed during the time interval.

The adapter retrieves the unchanged files in their present state and the changed files from their last saved state. See the Time interval for polling unchanged files property details.

During an inbound operation, the adapter does not support files with the following file name format:

Inbound processing