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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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using NLog;
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using NzbDrone.Common.TPL;
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using NzbDrone.Core.Parser.Model;
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namespace NzbDrone.Core.Indexers
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{
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public interface IFetchAndParseRss
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{
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List<ReleaseInfo> Fetch();
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}
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public class FetchAndParseRssService : IFetchAndParseRss
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{
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private readonly IIndexerFactory _indexerFactory;
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private readonly Logger _logger;
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public FetchAndParseRssService(IIndexerFactory indexerFactory, Logger logger)
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{
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_indexerFactory = indexerFactory;
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_logger = logger;
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}
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public List<ReleaseInfo> Fetch()
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{
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var result = new List<ReleaseInfo>();
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var indexers = _indexerFactory.RssEnabled();
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if (!indexers.Any())
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{
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_logger.Warn("No available indexers. check your configuration.");
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return result;
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}
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_logger.Debug("Available indexers {0}", indexers.Count);
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var taskList = new List<Task>();
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var taskFactory = new TaskFactory(TaskCreationOptions.LongRunning, TaskContinuationOptions.None);
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foreach (var indexer in indexers)
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{
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var indexerLocal = indexer;
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var task = taskFactory.StartNew(() =>
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{
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try
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{
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var indexerReports = indexerLocal.FetchRecent();
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lock (result)
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{
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_logger.Debug("Found {0} from {1}", indexerReports.Count, indexer.Name);
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result.AddRange(indexerReports);
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}
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}
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catch (Exception e)
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{
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_logger.Error(e, "Error during RSS Sync");
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}
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}).LogExceptions();
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taskList.Add(task);
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}
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Task.WaitAll(taskList.ToArray());
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_logger.Debug("Found {0} reports", result.Count);
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return result;
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}
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}
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}
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