[CAMEL-16874] PollEnrich with file and option sendEmptyMessageWhenIdle keeps sending empty messages

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.7.5, 3.11.0
• Fix Version/s: 3.7.6, 3.11.2, 3.12.0
• Estimated Complexity: Unknown
• Assignee: Karen Lease
• Reporter: Karen Lease
• Created: 19/Aug/21 10:09
• Updated: 01/Apr/22 06:13
• Resolved: 19/Aug/21 13:26

Description

In the dev mailing list, onders reported an issue using pollEnrich in combination with a REST request to upload files.

from("direct:uploadFiles")
        .pollEnrich("file:{{shared-folder}}?include=.*.gz&delete=true&sendEmptyMessageWhenIdle=true")
        .choice()
          .when(body().isNull()).log("No files found.. skipping to send to S3")
          .otherwise().to("direct:toAwsS3")
        .endChoice();

If the shared-folder contained no file, the empty event was sent, but when a file was then put in the folder, the empty event was still sent on the next rest request.

Issue Links

• links to: GitHub Pull Request #5962