DestinationDiscoverer

A discover operation that is run before the destination is used.

• Implementors must provide a discover method that returns the catalog.

• Implementors may provide a cleanup method that is run after the discover is complete.

• discover should throw an exception if the configuration is invalid.

• cleanup should not throw exceptions.

• Implementors should not perform any side effects in the constructor.

• Implementors should not throw exceptions in the constructor.

• Implementors should not inject configuration; only use the config passed in discover.