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141 changes: 141 additions & 0 deletions
141
DbLocalizationProvider/CachedLocalizationResourceRepository.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,141 @@ | ||
| using System.Collections.Generic; | ||
| using System.Globalization; | ||
| using System.Linq; | ||
| using System.Web; | ||
| using EPiServer; | ||
| using EPiServer.Framework.Localization; | ||
|
|
||
| namespace DbLocalizationProvider | ||
| { | ||
| public class CachedLocalizationResourceRepository : ILocalizationResourceRepository | ||
| { | ||
| private const string CacheKeyPrefix = "DbLocalizationProviderCache"; | ||
| private readonly LocalizationResourceRepository _repository; | ||
|
|
||
| public CachedLocalizationResourceRepository(LocalizationResourceRepository repository) | ||
| { | ||
| _repository = repository; | ||
| } | ||
|
|
||
| public string GetTranslation(string key, CultureInfo language) | ||
| { | ||
| var cacheKey = BuildCacheKey(key); | ||
| var localizationResource = GetFromCache(cacheKey); | ||
| if (localizationResource != null) | ||
| { | ||
| return localizationResource.Translations.FirstOrDefault(t => t.Language == language.Name)?.Value; | ||
| } | ||
|
|
||
| var resource = _repository.GetResource(key); | ||
| if (resource == null) | ||
| { | ||
| return null; | ||
| } | ||
|
|
||
| CacheManager.Insert(cacheKey, resource); | ||
|
|
||
| var localization = resource.Translations.FirstOrDefault(t => t.Language == language.Name); | ||
| return localization?.Value; | ||
| } | ||
|
|
||
| public IEnumerable<CultureInfo> GetAvailableLanguages() | ||
| { | ||
| var cacheKey = BuildCacheKey("AvailableLanguages"); | ||
| var cachedLanguages = CacheManager.Get(cacheKey) as IEnumerable<CultureInfo>; | ||
| if (cachedLanguages != null) | ||
| { | ||
| return cachedLanguages; | ||
| } | ||
|
|
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| var languages = _repository.GetAvailableLanguages(); | ||
| CacheManager.Insert(cacheKey, languages); | ||
|
|
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| return languages; | ||
| } | ||
|
|
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| public IEnumerable<LocalizationResource> GetAllResources() | ||
| { | ||
| return _repository.GetAllResources(); | ||
| } | ||
|
|
||
| public IEnumerable<ResourceItem> GetAllTranslations(string key, CultureInfo language) | ||
| { | ||
| return _repository.GetAllTranslations(key, language); | ||
| } | ||
|
|
||
| public void CreateResource(string key, string username) | ||
| { | ||
| _repository.CreateResource(key, username); | ||
| } | ||
|
|
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| public void DeleteResource(string key) | ||
| { | ||
| _repository.DeleteResource(key); | ||
| CacheManager.Remove(BuildCacheKey(key)); | ||
| } | ||
|
|
||
| public void CreateOrUpdateTranslation(string key, CultureInfo language, string newValue) | ||
| { | ||
| _repository.CreateOrUpdateTranslation(key, language, newValue); | ||
| CacheManager.Remove(BuildCacheKey(key)); | ||
| } | ||
|
|
||
| public void ClearCache() | ||
| { | ||
| if (HttpContext.Current == null) | ||
| { | ||
| return; | ||
| } | ||
|
|
||
| if (HttpContext.Current.Cache == null) | ||
| { | ||
| return; | ||
| } | ||
|
|
||
| var itemsToRemove = new List<string>(); | ||
| var enumerator = HttpContext.Current.Cache.GetEnumerator(); | ||
|
|
||
| while (enumerator.MoveNext()) | ||
| { | ||
| if (enumerator.Key.ToString().ToLower().StartsWith(CacheKeyPrefix.ToLower())) | ||
| { | ||
| itemsToRemove.Add(enumerator.Key.ToString()); | ||
| } | ||
| } | ||
|
|
||
| foreach (var itemToRemove in itemsToRemove) | ||
| { | ||
| CacheManager.Remove(itemToRemove); | ||
| } | ||
| } | ||
|
|
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| internal void PopulateCache() | ||
| { | ||
| var allResources = GetAllResources(); | ||
|
|
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| ClearCache(); | ||
|
|
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| foreach (var resource in allResources) | ||
| { | ||
| var key = BuildCacheKey(resource.ResourceKey); | ||
| CacheManager.Insert(key, resource); | ||
| } | ||
| } | ||
|
|
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| internal LanguageEntities GetDatabaseContext() | ||
| { | ||
| return _repository.GetDatabaseContext(); | ||
| } | ||
|
|
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| private static string BuildCacheKey(string key) | ||
| { | ||
| return $"{CacheKeyPrefix}_{key}"; | ||
| } | ||
|
|
||
| private static LocalizationResource GetFromCache(string cacheKey) | ||
| { | ||
| var cachedResource = CacheManager.Get(cacheKey); | ||
| return cachedResource as LocalizationResource; | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| using System.Collections.Generic; | ||
| using System.Globalization; | ||
| using EPiServer.Framework.Localization; | ||
|
|
||
| namespace DbLocalizationProvider | ||
| { | ||
| public interface ILocalizationResourceRepository | ||
| { | ||
| string GetTranslation(string key, CultureInfo language); | ||
| IEnumerable<CultureInfo> GetAvailableLanguages(); | ||
| IEnumerable<LocalizationResource> GetAllResources(); | ||
| IEnumerable<ResourceItem> GetAllTranslations(string key, CultureInfo language); | ||
| void CreateResource(string key, string username); | ||
| void DeleteResource(string key); | ||
| void CreateOrUpdateTranslation(string key, CultureInfo language, string newValue); | ||
| } | ||
| } |
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