internal static int?GetRatingDistributionItemCount(int ratingValue, LocaleDistributionItem item)
{
var result =
item.ReviewStatistics.RatingDistribution.FirstOrDefault(
ratingDistributionItem => ratingDistributionItem.RatingValue == ratingValue);
return(result != null ? (int?)result.Count : null);
}
private IEnumerable <ProductRating> GetProductRatings(Product product)
{
Log.Debug("In GetProductRatings");
long productId;
if (!long.TryParse(product.Id, out productId))
{
var message = string.Format("Product ID is not in the correct format. Skipping. PID: {0}", product.Id);
Log.Error(message);
if (ExecutionLogLoggerMessageLimit == 0 || _executionLogLoggerMessageCount++ <= ExecutionLogLoggerMessageLimit)
{
_executionLogLogger.AddCustomMessage(message);
}
else if (ExecutionLogLoggerMessageLimit != 0)
{
Log.ErrorFormat("ExecutionLogLogger message limit of {0} has been exceeded.",
ExecutionLogLoggerMessageLimit);
}
return(Enumerable.Empty <ProductRating>());
}
var externalReviewStatistics = ComputeExternalReviewStatistics(product.Id, product.NativeReviewStatistics,
product.ReviewStatistics);
var nativeLocaleDistributionItems = GetAggregatedLocaleDistributionItems(product.NativeReviewStatistics);
var externalLocaleDistributionItems = GetAggregatedLocaleDistributionItems(externalReviewStatistics);
var generalLocaleList = GetCombinedLocaleList(GetDisplayLocaleList(nativeLocaleDistributionItems), GetDisplayLocaleList(externalLocaleDistributionItems));
var result = generalLocaleList.Select(generalLocaleString =>
{
LocaleDistributionItem nativeDistributionItem =
nativeLocaleDistributionItems.FirstOrDefault(
item => item.DisplayLocale.Equals(generalLocaleString, StringComparison.OrdinalIgnoreCase));
LocaleDistributionItem externalDistributionItem =
externalLocaleDistributionItems.FirstOrDefault(
item => item.DisplayLocale.Equals(generalLocaleString, StringComparison.OrdinalIgnoreCase));
var localizedNativeReviewStatistics = GetReviewStatistics(nativeDistributionItem);
var localizedExternalReviewStatistics = GetReviewStatistics(externalDistributionItem);
var resultItem = new ProductRating(productId, generalLocaleString,
localizedNativeReviewStatistics,
localizedExternalReviewStatistics);
return(resultItem);
});
Log.Debug("Exiting GetProductRatings");
return(result);
}
private static ReviewStatistics GetCopyOfReviewStatistics(LocaleDistributionItem localeDistributionItem)
{
var result = new ReviewStatistics();
result.RatingDistribution = localeDistributionItem.ReviewStatistics.RatingDistribution.Select(
item => new RatingDistributionItem {
RatingValue = item.RatingValue, Count = item.Count
})
.ToList();
result.TotalReviewCount = localeDistributionItem.ReviewStatistics.TotalReviewCount;
return(result);
}
private static ReviewStatistics GetExternalReviewStatistics(string pid, LocaleDistributionItem nativeLocaleDistributionItem, LocaleDistributionItem combinedLocaleDistributionItem)
{
var result = new ReviewStatistics {
RatingDistribution = new List <RatingDistributionItem>(5)
};
for (int i = 1; i <= 5; i++)
{
var nativeItemCount = GetRatingDistributionItemCount(i, nativeLocaleDistributionItem);
var combinedItemCount = GetRatingDistributionItemCount(i, combinedLocaleDistributionItem);
if (combinedItemCount == null && nativeItemCount == null)
{
continue;
}
if (nativeItemCount == null)
{
nativeItemCount = 0;
}
if (combinedItemCount == null)
{
combinedItemCount = 0;
}
if (combinedItemCount >= nativeItemCount)
{
combinedItemCount = combinedItemCount - nativeItemCount;
}
else if (nativeItemCount > 0)
{
combinedItemCount = 0;
}
var externalItemCount = combinedItemCount;
result.RatingDistribution.Add(new RatingDistributionItem
{
RatingValue = i,
Count = externalItemCount.Value
});
}
result.TotalReviewCount = result.RatingDistribution.Sum(rd => rd.Count);
return(result);
}
private ReviewStatistics ComputeExternalReviewStatistics(string pid, ReviewStatistics nativeReviewStatistics, ReviewStatistics reviewStatisticsNodeFromBazaarVoiceData)
{
var result = new ReviewStatistics();
var resultLocaleDistributionList = new List <LocaleDistributionItem>();
result.LocaleDistribution = resultLocaleDistributionList;
foreach (var nativeLocaleDistributionItem in nativeReviewStatistics.LocaleDistribution ?? Enumerable.Empty <LocaleDistributionItem>())
{
var matchFound = false;
foreach (var combinedLocaleDistributionItem in reviewStatisticsNodeFromBazaarVoiceData.LocaleDistribution ?? Enumerable.Empty <LocaleDistributionItem>())
{
if (nativeLocaleDistributionItem.DisplayLocale.Equals(combinedLocaleDistributionItem.DisplayLocale, StringComparison.Ordinal))
{
matchFound = true;
break;
}
}
if (matchFound)
{
continue;
}
throw new ApplicationException(
string.Format(
"There is a locale {0} in the native LocaleDistributionItem which doesn't exist in the combined LocaleDistributionItem. PID: {1}",
nativeLocaleDistributionItem.DisplayLocale, pid));
}
foreach (var combinedLocaleDistributionItem in reviewStatisticsNodeFromBazaarVoiceData.LocaleDistribution ?? Enumerable.Empty <LocaleDistributionItem>())
{
ReviewStatistics resultReviewStatistics;
LocaleDistributionItem foundNativeLocaleDistributionItem = null;
foreach (var nativeLocaleDistributionItem in nativeReviewStatistics.LocaleDistribution ?? Enumerable.Empty <LocaleDistributionItem>())
{
if (combinedLocaleDistributionItem.DisplayLocale.Equals(nativeLocaleDistributionItem.DisplayLocale, StringComparison.Ordinal))
{
foundNativeLocaleDistributionItem = nativeLocaleDistributionItem;
break;
}
}
if (foundNativeLocaleDistributionItem != null)
{
Log.DebugFormat("GetExternalReviewStatistics. PID: {0}", pid);
resultReviewStatistics = GetExternalReviewStatistics(pid, foundNativeLocaleDistributionItem, combinedLocaleDistributionItem);
}
else
{
resultReviewStatistics = GetCopyOfReviewStatistics(combinedLocaleDistributionItem);
}
var resultLocaleDistributionItem = new LocaleDistributionItem
{
DisplayLocale = combinedLocaleDistributionItem.DisplayLocale,
ReviewStatistics = resultReviewStatistics
};
resultLocaleDistributionList.Add(resultLocaleDistributionItem);
}
return(result);
}
private static ReviewStatistics GetReviewStatistics(LocaleDistributionItem localeDistributionItem)
{
var result = (localeDistributionItem ?? LocaleDistributionItem.Empty).ReviewStatistics;
return(result);
}
