Package com.societegenerale.failover.core.observable

Interface InstanceIdResolver

All Known Implementing Classes:
DefaultInstanceIdResolver
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public interface InstanceIdResolver
Resolves the unique identity string for this application instance, used to key per-instance data in the failover dashboard (snapshot store, Instances tab).

The default implementation (DefaultInstanceIdResolver) produces <spring.application.name>:<hostname>:<port>, resolved lazily on each call so local.server.port (set after the embedded server starts) is always captured correctly, including when server.port=0 (random port).

Declare a bean of this type to override: useful for k8s pod names, Docker container ids, or an explicit property value such as failover.observable.instance.id.

Author:
Anand Manissery

  • Method Summary

    Modifier and Type
    Method
    Description
    String
    resolve()
    Returns a stable, unique string identifying this instance (e.g.

  • Method Details

    • resolve

      String resolve()
      Returns a stable, unique string identifying this instance (e.g. myapp:host-1:8080).