9d36ced82f
- Implementiert GetOptions<TOptions> zum Abrufen von Optionen oder null. - Implementiert GetRequiredOptions<TOptions> für den Abruf von Optionen oder das Auslösen einer Ausnahme.
32 lines
1.6 KiB
C#
32 lines
1.6 KiB
C#
using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Options;
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namespace DigitalData.Core.Abstractions;
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/// <summary>
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/// Extension methods for <see cref="IServiceProvider"/> to retrieve configuration options.
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/// </summary>
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public static class ServiceProviderExtensions
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{
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/// <summary>
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/// Retrieves an instance of <typeparamref name="TOptions"/> from the <see cref="IServiceProvider"/>.
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/// If the options are not registered, returns null.
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/// </summary>
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/// <typeparam name="TOptions">The type of the options to retrieve.</typeparam>
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/// <param name="service">The service provider instance.</param>
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/// <returns>An instance of <typeparamref name="TOptions"/> or null if not found.</returns>
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public static TOptions? GetOptions<TOptions>(this IServiceProvider service) where TOptions : class
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=> service.GetService<IOptions<TOptions>>()?.Value;
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/// <summary>
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/// Retrieves an instance of <typeparamref name="TOptions"/> from the <see cref="IServiceProvider"/>.
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/// Throws an exception if the options are not registered.
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/// </summary>
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/// <typeparam name="TOptions">The type of the options to retrieve.</typeparam>
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/// <param name="service">The service provider instance.</param>
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/// <returns>An instance of <typeparamref name="TOptions"/>.</returns>
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/// <exception cref="InvalidOperationException">Thrown when the options are not registered.</exception>
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public static TOptions GetRequiredOptions<TOptions>(this IServiceProvider service) where TOptions : class
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=> service.GetRequiredService<IOptions<TOptions>>().Value;
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}
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