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

["Stephen Mallette (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TINKERPOP-2806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stephen Mallette updated TINKERPOP-2806:
----------------------------------------
    Issue Type: Improvement  (was: Bug)

> 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: Improvement
>          Components: server
>    Affects Versions: 3.6.1
>            Reporter: Tom Kolanko
>            Priority: Minor
>             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:
>  /**
>      * This method will be called before a script or query is processed by the
>      * gremlin-server.
>      * The msg is the {@link RequestMessage} received by the gremlin-server.
>      */
>     default void beforeQueryStart(RequestMessage msg) {
>     }
>     /**
>      * This method will be called before a script or query is processed by the
>      * gremlin-server.
>      * The msg is the {@link RequestMessage} received by the gremlin-server.
>      * The error is the exception encounted during processing from the gremlin-server.
>      */
>     default void onQueryError(RequestMessage msg, Throwable error) {
>     }
>     /**
>      * When a script or query successfully completes this method will be called.
>      * The msg is the {@link RequestMessage} received by the gremlin-server.
>      */
>     default void onQuerySuccess(RequestMessage msg) {
>     }
> 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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