openiddict-core/src/OpenIddict.Core/Resolvers/OpenIddictScopeStoreResolver.cs

using System;
using JetBrains.Annotations;
using Microsoft.Extensions.DependencyInjection;
using OpenIddict.Abstractions;
using SR = OpenIddict.Abstractions.OpenIddictResources;

namespace OpenIddict.Core
{
    /// <summary>
    /// Exposes a method allowing to resolve a scope store.
    /// </summary>
    public class OpenIddictScopeStoreResolver : IOpenIddictScopeStoreResolver
    {
        private readonly IServiceProvider _provider;

        public OpenIddictScopeStoreResolver([NotNull] IServiceProvider provider)
            => _provider = provider;

        /// <summary>
        /// Returns a scope store compatible with the specified scope type or throws an
        /// <see cref="InvalidOperationException"/> if no store can be built using the specified type.
        /// </summary>
        /// <typeparam name="TScope">The type of the Scope entity.</typeparam>
        /// <returns>An <see cref="IOpenIddictScopeStore{TScope}"/>.</returns>
        public IOpenIddictScopeStore<TScope> Get<TScope>() where TScope : class
            => _provider.GetService<IOpenIddictScopeStore<TScope>>() ??
                throw new InvalidOperationException(SR.GetResourceString(SR.ID1229));
    }
}