ServerShutDownDelayer (javadocs 0.0.0 API)

```
public interface ServerShutDownDelayer
```
An interface which can be implemented and provided to delay shutdown of the server. Health check will become unhealthy when the server receives a termination signal but the server will not begin shutdown until all ServerShutDownDelayers have indicated they are ready.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`com.google.common.util.concurrent.ListenableFuture<java.lang.Void>`	`readyForShutdown()`	Returns a future which must be completed to indicate the server will be shutdown.

- Method Detail
  - readyForShutdown
```
com.google.common.util.concurrent.ListenableFuture<java.lang.Void> readyForShutdown()
```
    Returns a future which must be completed to indicate the server will be shutdown. This method will be called when the server receives a shutdown signal. The server will actually begin to shutdown when all ServerShutDownDelayer have completed their returned future. Implementations should only complete the future successfully - exceptional completion will still trigger shutdown but will not be handled or logged in anyway.
    There is no timeout on completion of this future - it is recommended an external timeout, such as a Kubernetes shutdown delay, is used to ensure the server isn't stuck forever.