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

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

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

        public OpenIddictTokenStoreResolver(IServiceProvider provider)
            => _provider = provider;

        /// <summary>
        /// Returns a token store compatible with the specified token type or throws an
        /// <see cref="InvalidOperationException"/> if no store can be built using the specified type.
        /// </summary>
        /// <typeparam name="TToken">The type of the Token entity.</typeparam>
        /// <returns>An <see cref="IOpenIddictTokenStore{TToken}"/>.</returns>
        public IOpenIddictTokenStore<TToken> Get<TToken>() where TToken : class
            => _provider.GetService<IOpenIddictTokenStore<TToken>>() ??
                throw new InvalidOperationException(SR.GetResourceString(SR.ID1230));
    }
}