aplex opened a new pull request #3281:
URL: https://github.com/apache/gobblin/pull/3281


   Previously, to initialize Gobblin service, we used a mixture
   of dependency injection, direct class creation and config-based
   class creation. In this change, we unify the service initialization
   by moving towards using dependency injection(DI) with Guice everywhere.
   
   Using DI will help with (1) unit testing; (2) overriding classes in the
   middle of the dependency with company-specific implementations, and
   (3) will improve code readability, as dependencies between classes
   become visible from the outside and explicit.
   
   We also move away from name-based injection for classes. Name-based
   injection is useful when code needs several different implementations
   of the same interface. In our use case, we had only one implementation
   for each service that can be active. Name-based injection was used for
   company-specific overrides, but there is a better way to do it - with
   Guice module overrides.
   
   There are still several improvements left to be done to have a full
   Guice migration, but we'll make them in separate commits to limit the
   PR size.
   
   https://issues.apache.org/jira/browse/GOBBLIN-1444
   


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