I have a Java web application that I build as WAR and deploy on Apache Tomcat. Let's say that I have a mechanism built-in my app to determine when it is successfully deployed and running on the server (I'll call it SuccessHandler). Conditionally in the SuccessHandler I need to programmatically delete a file from the project's deployment directory (say path-to-tomcat/webapps/my-project/file.txt) how can I do that?
Disclamer: I am able to load/delete files from the resources directories that reside in path-to-tomcat/webapps/my-project/WEB-INF/ after the deployment + I am able to delete the files using hard-coded absolute path but this is not what I am looking for. I want to be able to delete files no matter where the application is deployed.
You can't do it reliably. The inside of the application isn't writable in the general case. In particular, the archive may be executed in place and not exploded; even if it isn't, there's nothing keeping the server from restoring the file at every launch. You'll need another way to save your state.