/// <summary>
/// Gets a <see cref="IEnumerable{CultureInfo}"/> containing <see cref="CultureInfo"/> instances from provided <code>requiredTranslations</code>
/// which translations are not found in the provided <see cref="MarketDescriptionCacheItem"/>
/// </summary>
/// <param name="item">The <see cref="MarketDescriptionCacheItem"/> instance, or a null reference</param>
/// <param name="requiredTranslations">The <see cref="IEnumerable{CultureInfo}"/> specifying the required languages</param>
/// <returns>A <see cref="IEnumerable{CultureInfo}"/> containing missing translations or a null reference if none of the translations are missing</returns>
private IEnumerable <CultureInfo> GetMissingTranslations(MarketDescriptionCacheItem item, IEnumerable <CultureInfo> requiredTranslations)
{
var requiredTranslationsList = requiredTranslations?.ToList();
Guard.Argument(requiredTranslationsList, nameof(requiredTranslationsList)).NotNull().NotEmpty();
if (item == null)
{
//return requiredTranslations;
//we get only those which was not yet fetched
if (requiredTranslationsList != null)
{
return(requiredTranslationsList.Where(c => !_fetchedLanguages.Contains(c)));
}
}
if (requiredTranslationsList != null)
{
var missingCultures = requiredTranslationsList.Where(c => !item.HasTranslationsFor(c)).ToList();
return(missingCultures.Any()
? missingCultures
: null);
}
return(null);
}
/// <summary>
/// Gets a <see cref="IEnumerable{CultureInfo}"/> containing <see cref="CultureInfo"/> instances from provided <code>requiredTranslations</code>
/// which translations are not found in the provided <see cref="MarketDescriptionCacheItem"/>
/// </summary>
/// <param name="item">The <see cref="MarketDescriptionCacheItem"/> instance, or a null reference</param>
/// <param name="requiredTranslations">The <see cref="IEnumerable{CultureInfo}"/> specifying the required languages</param>
/// <returns>A <see cref="IEnumerable{CultureInfo}"/> containing missing translations or a null reference if none of the translations are missing</returns>
private IEnumerable <CultureInfo> GetMissingTranslations(MarketDescriptionCacheItem item, IEnumerable <CultureInfo> requiredTranslations)
{
Guard.Argument(requiredTranslations, nameof(requiredTranslations)).NotNull();
if (!requiredTranslations.Any())
{
throw new ArgumentOutOfRangeException(nameof(requiredTranslations));
}
if (item == null)
{
//return requiredTranslations;
//we get only those which was not yet fetched
return(requiredTranslations.Where(c => !_fetchedLanguages.Contains(c)));
}
var missingCultures = requiredTranslations.Where(c => !item.HasTranslationsFor(c)).ToList();
return(missingCultures.Any()
? missingCultures
: null);
}
/// <summary>
/// Merges the provided descriptions with those found in cache
/// </summary>
/// <param name="culture">A <see cref="CultureInfo"/> specifying the language of the <code>descriptions</code></param>
/// <param name="descriptions">A <see cref="IEnumerable{MarketDescriptionDTO}"/> containing market descriptions in specified language</param>
private void Merge(CultureInfo culture, IEnumerable <MarketDescriptionDTO> descriptions)
{
var descriptionList = descriptions?.ToList();
Guard.Argument(culture, nameof(culture)).NotNull();
Guard.Argument(descriptionList, nameof(descriptionList)).NotNull().NotEmpty();
if (descriptionList != null)
{
foreach (var marketDescription in descriptionList)
{
var cachedItem = Cache.GetCacheItem(marketDescription.Id.ToString());
if (cachedItem == null)
{
try
{
cachedItem = new CacheItem(marketDescription.Id.ToString(),
MarketDescriptionCacheItem.Build(marketDescription, /*_mappingValidatorFactory,*/
culture));
Cache.Add(cachedItem, _cacheItemPolicy);
}
catch (Exception e)
{
if (!(e is InvalidOperationException))
{
throw;
}
CacheLog.LogWarning("Mapping validation for MarketDescriptionCacheItem failed.", e);
}
}
else
{
((MarketDescriptionCacheItem)cachedItem.Value).Merge(marketDescription, culture);
}
}
_fetchedLanguages.Add(culture);
}
}
