/// <summary>
/// Indexes the specified article to ElasticServer
/// </summary>
/// <param name="article">The article.</param>
/// <param name="rssLookupKey">The rss lookup key.</param>
/// <param name="client">The ElasticClient.</param>
/// <returns>The method result.</returns>
private static async Task <MethodResult> IndexArticle(Article article, ShortArticleKey rssLookupKey, IElasticClient client)
{
var result = await IndexArticle(article, client);
if (result.IsSucceeded())
{
var indexingResult =
await client.IndexAsync(rssLookupKey, i => i.Index(AppConfiguration.ElasticRssSpeedIndexName));
if (!indexingResult.IsValid)
{
return(new MethodResult(SuccessState.UnknownError, indexingResult.DebugInformation));
}
}
return(result);
}
/// <summary>
/// Checks if the specified Article is a duplicate
/// </summary>
/// <param name="rssSpeedLookupKey">Rss key to check</param>
/// <param name="client">The current client</param>
/// <returns>A value indicating whether the article already exists.</returns>
private static async Task <bool> IsArticleDuplicate(ShortArticleKey rssSpeedLookupKey, IElasticClient client)
{
var key = rssSpeedLookupKey;
var articleExists =
await client.SearchAsync <ShortArticleKey>(s => s
.Size(1)
.Index(AppConfiguration.ElasticRssSpeedIndexName)
.Query(q => q.MatchPhrase(m =>
m.Field(f => f.Updated)
.Query(key.Updated.ToString())) &&
q.MatchPhrase(m =>
m.Field(f => f.Link)
.Query(key.Link.ToString())) &&
q.MatchPhrase(m =>
m.Field(f => f.SourceId)
.Query(key.SourceId.ToString()))));
return(articleExists.IsValid && articleExists.Documents.Any());
}
/// <summary>
/// Indexes an RSS article thread safe.
/// </summary>
/// <param name="article">The article.</param>
/// <param name="key">The rss key.</param>
public async Task IndexRssFeedItemThreadSafeAsync(Article article, RssKey key)
{
#if ST
lock (lockObj)
#endif
{
try
{
//using (new PerfTracer(nameof(IndexRssFeedItemThreadSafeAsync)))
{
var client = new ElasticClient(settings);
var speedKey = new ShortArticleKey(article.IndexingSourceId, key.Updated, key.Link);
#if ST
if (!(IsArticleDuplicate(speedKey, client).Result))
#else
if (!(await IsArticleDuplicate(speedKey, client)))
#endif
{
#if ST
var result = IndexArticle(article, speedKey, client).Result;
#else
var result = await IndexArticle(article, speedKey, client);
#endif
if (result.Status == SuccessState.UnknownError)
{
throw new Exception("IndexArticle failed: " + result.UserMessage);
}
}
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
}
