minor sync cleanup.

NzbDrone.Core/Indexers/FetchAndParseRssService.cs

@@ -0,0 +1,56 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using NLog;
+using NzbDrone.Core.Parser.Model;
+
+namespace NzbDrone.Core.Indexers
+{
+    public interface IFetchAndParseRss
+    {
+        List<ReportInfo> Fetch();
+    }
+
+    public class FetchAndParseRssService : IFetchAndParseRss
+    {
+        private readonly IIndexerService _indexerService;
+        private readonly IFetchFeedFromIndexers _feedFetcher;
+        private readonly Logger _logger;
+
+        public FetchAndParseRssService(IIndexerService indexerService, IFetchFeedFromIndexers feedFetcher, Logger logger)
+        {
+            _indexerService = indexerService;
+            _feedFetcher = feedFetcher;
+            _logger = logger;
+        }
+
+        public List<ReportInfo> Fetch()
+        {
+            var result = new List<ReportInfo>();
+
+            var indexers = _indexerService.GetAvailableIndexers();
+
+            if (!indexers.Any())
+            {
+                _logger.Warn("No available indexers. check your configuration.");
+                return result;
+            }
+
+            _logger.Debug("Available indexers {0}", indexers.Count);
+
+            Parallel.ForEach(indexers, indexer =>
+                {
+                    var indexerFeed = _feedFetcher.FetchRss(indexer);
+
+                    lock (result)
+                    {
+                        result.AddRange(indexerFeed);
+                    }
+                });
+
+            _logger.Debug("Found {0} reports", result.Count);
+
+            return result;
+        }
+    }
+}