| | | 1 | | // ----------------------------------------------------------------------- |
| | | 2 | | // <copyright file="LocalizationServiceFactory.cs" company="Stéphane ANDRE"> |
| | | 3 | | // Copyright (c) Stéphane ANDRE. All rights reserved. |
| | | 4 | | // </copyright> |
| | | 5 | | // ----------------------------------------------------------------------- |
| | | 6 | | |
| | | 7 | | using System; |
| | | 8 | | using System.Collections.Frozen; |
| | | 9 | | using System.Collections.Generic; |
| | | 10 | | using System.Globalization; |
| | | 11 | | using MyNet.Globalization.Localization.Policies; |
| | | 12 | | using MyNet.Primitives.Comparers; |
| | | 13 | | |
| | | 14 | | namespace MyNet.Globalization.Localization.Providers.Factories; |
| | | 15 | | |
| | | 16 | | /// <summary> |
| | | 17 | | /// A localization service factory that maps specific cultures to their corresponding service factories, |
| | | 18 | | /// allowing for culture-specific localization services with configurable <see cref="ICultureFallbackPolicy"/>. |
| | | 19 | | /// </summary> |
| | | 20 | | /// <param name="factories">A dictionary mapping cultures to their corresponding service factories.</param> |
| | | 21 | | /// <param name="defaultFactory">The default service factory to use when no specific factory is found for a culture.</pa |
| | | 22 | | /// <param name="fallbackPolicy"> |
| | | 23 | | /// The culture fallback policy. Defaults to <see cref="CultureFallbackPolicies.ParentCulture"/>. |
| | | 24 | | /// Use <see cref="CultureFallbackPolicies.None"/> to disable fallback. |
| | | 25 | | /// </param> |
| | | 26 | | /// <typeparam name="TService">The type of the localization service.</typeparam> |
| | | 27 | | public sealed class LocalizationServiceFactory<TService>( |
| | | 28 | | IDictionary<CultureInfo, Func<TService>> factories, |
| | | 29 | | Func<CultureInfo, TService> defaultFactory, |
| | | 30 | | ICultureFallbackPolicy? fallbackPolicy = null) |
| | | 31 | | : ILocalizationServiceFactory<TService> |
| | | 32 | | where TService : class, ICultureScoped |
| | | 33 | | { |
| | 380 | 34 | | private readonly FrozenDictionary<CultureInfo, Func<TService>> _cultureFactories = factories.ToFrozenDictionary(Cult |
| | 380 | 35 | | private readonly Func<CultureInfo, TService> _defaultFactory = defaultFactory ?? throw new ArgumentNullException(nam |
| | 380 | 36 | | private readonly ICultureFallbackPolicy _fallbackPolicy = fallbackPolicy ?? CultureFallbackPolicies.ParentCulture; |
| | | 37 | | |
| | | 38 | | /// <inheritdoc /> |
| | 53 | 39 | | public Type TargetType => typeof(TService); |
| | | 40 | | |
| | | 41 | | /// <inheritdoc /> |
| | | 42 | | public TService Create(CultureInfo culture) |
| | | 43 | | { |
| | 123 | 44 | | ArgumentNullException.ThrowIfNull(culture); |
| | | 45 | | |
| | 123 | 46 | | var current = culture; |
| | | 47 | | |
| | 144 | 48 | | while (true) |
| | | 49 | | { |
| | 267 | 50 | | if (_cultureFactories.TryGetValue(current, out var factory)) |
| | 99 | 51 | | return factory(); |
| | | 52 | | |
| | 168 | 53 | | var fallback = _fallbackPolicy.GetFallback(current); |
| | 168 | 54 | | if (fallback is null) |
| | | 55 | | break; |
| | | 56 | | |
| | 144 | 57 | | current = fallback; |
| | | 58 | | } |
| | | 59 | | |
| | 24 | 60 | | return _defaultFactory(culture); |
| | | 61 | | } |
| | | 62 | | } |
| | | 63 | | |