Introduction

This is a simple springboot + camel project that illustrate the camel issue 14737

In brief, when the application is gracefully shutdown while it's still processing a file the datasource is closed too early which causes multiple error for inflight messages.

How it works

The application simply reads gziped text file line by line from a directory and insert them in a h2 database.

How to use

• start the springboot application with the parameter -DfileComponentUri=... configured with a valid directory containing at least one "big*" gziped text file

How to produce the issue

• when you see the log processing file: xxx then shutdown the application gracefully before the file is fully processed
• you'll see thousands of "datasource already closed" errors

*big gzip file: I use an application log file of 100Mb ~20 Mb compressed. It just has to be big enough for you to have the time to call the graceful shutdown before the file it completely processed Due to the file size, I preferred not to upload such file on github.

Application parameter

• fileComponentUri: valid URI of a file endpoint. Something like file://C:/tmp/14737. It must be file:// as it's used to build a org.apache.camel.component.file.FileEndpoint