public async Task Run(CancellationToken cancellationToken)
{
var directoryInfo = GetDirectory();
var lck = new FileDistributedLock(directoryInfo, "extract-articles");
using (var distributedLock = await lck.TryAcquireAsync())
{
if (distributedLock == null)
{
return;
}
var datasources = await _datasourceCommandRepository.GetAll(cancellationToken);
foreach (var datasource in datasources)
{
try
{
await ExtractArticlesFromFeed(datasource, cancellationToken);
}
catch (Exception ex)
{
_logger.LogError(ex.ToString());
}
}
await _datasourceCommandRepository.Update(datasources, cancellationToken);
await _datasourceCommandRepository.SaveChanges(cancellationToken);
}
}
public async Task Consume(ConsumeContext <FeedDataSourceUnsubscribedEvent> context)
{
var datasource = await _datasourceCommandRepository.Get(context.Message.DataSourceId, CancellationToken.None);
datasource.DecrementFollower();
await _datasourceCommandRepository.Update(new[] { datasource }, CancellationToken.None);
await _datasourceCommandRepository.SaveChanges(CancellationToken.None);
}
public async Task Consume(ConsumeContext <ArticleAddedEvent> context)
{
var directoryInfo = ArticleExtractorJob.GetDirectory();
var lck = new FileDistributedLock(directoryInfo, "article-added");
using (var distributedLock = await lck.TryAcquireAsync())
{
if (distributedLock == null)
{
var random = new Random();
Thread.Sleep(random.Next(100, 2000));
return;
}
var datasource = await _dataSourceCommandRepository.Get(context.Message.DataSourceId, CancellationToken.None);
datasource.AddArticle(context.Message.PublishDate);
await _dataSourceCommandRepository.Update(new[] { datasource }, CancellationToken.None);
await _dataSourceCommandRepository.SaveChanges(CancellationToken.None);
}
}
