public async Task Run(CancellationToken cancellationToken)
{
var directoryInfo = ArticleExtractorJob.GetDirectory();
var lck = new FileDistributedLock(directoryInfo, "extract-recommendations");
using (var distributedLock = await lck.TryAcquireAsync())
{
if (distributedLock == null)
{
return;
}
var popularArticles = await GetPopularArticles(cancellationToken);
var result = GetSimilarArticlesByWord2Vec(popularArticles).ToList();
foreach (var articles in result)
{
var firstArticle = articles.First();
var recommendation = RecommendationAggregate.Create(firstArticle.UserId);
foreach (var article in articles)
{
recommendation.Recommend(article.ArticleId, article.Score);
}
await _recommendationCommandRepository.Add(recommendation, cancellationToken);
await _recommendationCommandRepository.SaveChanges(cancellationToken);
}
}
}
public Task Update(RecommendationAggregate recommendation, CancellationToken cancellationToken)
{
_newsAggregatorDBContext.Recommendations.Update(recommendation);
return(Task.CompletedTask);
}
