[jira] [Created] (TINKERPOP-2806) Provide method for provider plugins to get notified on script/query processing

["Tom Kolanko (Jira)" <ji...@apache.org>]

Tom Kolanko created TINKERPOP-2806:
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             Summary: Provide method for provider plugins to get notified on script/query processing 
                 Key: TINKERPOP-2806
                 URL: https://issues.apache.org/jira/browse/TINKERPOP-2806
             Project: TinkerPop
          Issue Type: Bug
          Components: server
    Affects Versions: 3.6.1
            Reporter: Tom Kolanko
             Fix For: 3.6.2


What happens in the gremlin-server is more or less a black box for provider plugins. This ticket proposes a change to the GraphManager interface to allow providers to opt into receiving notifications for GremlinExecutor lifecycles. 

The following items could be added to the GraphManager interface:
default void beforeQueryStart(String requestID, Map<String, Object> args) {}
default void onQueryError(String requestID, String error) {}
default void onQuerySuccess(String requestID) {}
default void onQueryTimeout(String requestID, long evaluationTimeout) {}

In AbstractEvalOpProcessor where the GremlinExector.LifeCycle is created the graphManager can be accessed through the Context and those methods called at each stage of the lifecycle.

In TraversalOpProcessor the graphManager can also be accessed through context. Similar methods exist to the GremlinExecutor.LifeCycle, those can call the graphManager methods as needed.



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