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Subject [GitHub] [lucenenet] NightOwl888 edited a comment on issue #282: Docs - Build/Deploy Automation
Date Thu, 28 May 2020 17:34:06 GMT

NightOwl888 edited a comment on issue #282:

   > I guess there's a lot of ways to do things so would need a concrete example of what
you 'want' to do .
   The example that was followed to extend both codecs and "system properties" is outlined
in [DI-Friendly Framework]( The concept
is rather abstract, and I was hoping to provide some specific examples that pertain only to
codecs (in particular for ASP.NET Core and in console applications).
   Microsoft has a [Dependency Injection in ASP.NET Core](
that gives a high-level overview. However, when searching for a similar document for console
applications, there are only examples such as [this one by a 3rd party](
   Effectively, what I am hoping for is
   - A general overview of abstract types of codecs (like what [already exists](
   - A how-to on creating a custom codec * ([example](
   - A how-to for testing a custom codec using the test framework * ([example](
   - A how-to for manual registration of custom codecs when not using DI *
   - A how-to for DI registration of codecs with ASP.NET Core *
   - A how-to for DI registration of codecs with a console application using Microsoft.Extensions.DependencyInjection
   - A how-to for DI registration of codecs using a 3rd party DI framework
   I think the ones with the asterisk are the most important.
   Ideally, they would be separate documents that are referenced in other relevant places.
For example, there should eventually be a document that explains how to configure the test
framework with DI in general, which would link over to the how-to on testing a codec.
   I am also kicking around the idea of making extension methods for `Microsoft.Extensions.DependencyInjection`
to make registration of common Lucene.NET services seamless (which of course would simplify
the configuration and the docs). For example:
   public void ConfigureServices(IServiceCollection services)
       services.AddDefaultLuceneCodecs(); // Register Lucene.NET Codecs with DI in one line
       services.AddScoped<IMyDependency, MyDependency>();
       services.AddTransient<IOperationTransient, Operation>();
   One issue with doing so is whether we should take a dependency on `Micorsoft.Extensions.DependencyInjection.Abstractions`
to build the functionality into our existing assemblies, or create additional integration
assemblies (and there would need to be several of them). The cost of taking on a non-invasive
dependency to make it "just work" with Microsoft apps seems low compared to creating several
packages for the sake of integration, so I am leaning toward that approach, especially since
we have already taken a dependency on `Microsoft.Extensions.Configuration.Abstractions` for
a similar reason.

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