There is a restriction on the launch of the application. How to disable the endpoint - y request that accesses the API. But in the case of accessing the database, the query should work?

Question

Java

Hello!
There is a task. I'm blocking the application from starting by listening on a port on a ServerSocket . But by doing so, I block any request from the client until the update process is in progress.
Solution: Can I achieve a situation where only certain endpoints are blocked from restarting, such as an endpoint that accesses a third party API. But I could access the database to get data, as for example.
Could you please advise, does anyone have any ideas?
Thank you all very much.

Answer 1

Create a blocking task until it is completed, a pending status message is sent.
How to implement? Think for yourself. You can hang up a dictionary, you can save it in the database, you can use the queue

Answer 2

Using Java Security Manager, you can selectively block the ability of an application to listen on listener ports, or create connections on its own. But this manager does not distinguish between endpoint and base. He needs numbers like host:port or their combinations and permission rules for the corresponding actions.