private static STT.Task ExecuteCentralizedActivityAsync(IndexingActivityBase activity, CancellationToken cancellationToken)
{
SnTrace.Index.Write("ExecuteCentralizedActivity: #{0}", activity.Id);
CentralizedIndexingActivityQueue.ExecuteActivity(activity);
return(activity.WaitForCompleteAsync(cancellationToken));
}
public IndexManager(IDataStore dataStore, ISearchManager searchManager)
{
_dataStore = dataStore;
_searchManager = searchManager;
DistributedIndexingActivityQueue = new DistributedIndexingActivityQueue(this);
CentralizedIndexingActivityQueue = new CentralizedIndexingActivityQueue();
}
private static void ExecuteCentralizedActivity(IndexingActivityBase activity)
{
SnTrace.Index.Write("ExecuteCentralizedActivity: #{0}", activity.Id);
CentralizedIndexingActivityQueue.ExecuteActivity(activity);
activity.WaitForComplete();
}
/// <summary>
/// Initializes the indexing feature: starts the IndexingEngine, CommitManager and indexing activity organizer.
/// If "consoleOut" is not null, writes progress and debug messages into it.
/// </summary>
/// <param name="consoleOut">A <see cref="TextWriter"/> instance or null.</param>
/// <param name="cancellationToken">The token to monitor for cancellation requests. The default value is None.</param>
/// <returns>A Task that represents the asynchronous operation.</returns>
public static async STT.Task StartAsync(TextWriter consoleOut, CancellationToken cancellationToken)
{
await IndexingEngine.StartAsync(consoleOut, cancellationToken).ConfigureAwait(false);
CommitManager = IndexingEngine.IndexIsCentralized
? (ICommitManager) new NoDelayCommitManager()
: new NearRealTimeCommitManager();
SnTrace.Index.Write("LM: {0} created.", CommitManager.GetType().Name);
CommitManager.Start();
if (IndexingEngine.IndexIsCentralized)
{
CentralizedIndexingActivityQueue.Startup(consoleOut);
}
else
{
DistributedIndexingActivityQueue.Startup(consoleOut);
}
}
/// <summary>
/// Shuts down the indexing feature: stops CommitManager, indexing activity organizator and IndexingEngine.
/// </summary>
public static void ShutDown()
{
CommitManager?.ShutDown();
if (IndexingEngine == null)
{
return;
}
if (IndexingEngine.IndexIsCentralized)
{
CentralizedIndexingActivityQueue.ShutDown();
}
else
{
DistributedIndexingActivityQueue.ShutDown();
}
IndexingEngine.ShutDown();
SnLog.WriteInformation("Indexing engine has stopped. Max task id and exceptions: " + DistributedIndexingActivityQueue.GetCurrentCompletionState());
}
/// <summary>
/// Initializes the indexing feature: starts the IndexingEngine, CommitManager and indexing activity organizator.
/// If "consoleOut" is not null, writes progress and debug messages into it.
/// </summary>
/// <param name="consoleOut">A <see cref="TextWriter"/> instance or null.</param>
public static void Start(TextWriter consoleOut)
{
IndexingEngine.Start(consoleOut);
CommitManager = IndexingEngine.IndexIsCentralized
? (ICommitManager) new NoDelayCommitManager()
: new NearRealTimeCommitManager();
SnTrace.Index.Write("LM: {0} created.", CommitManager.GetType().Name);
CommitManager.Start();
if (IndexingEngine.IndexIsCentralized)
{
CentralizedIndexingActivityQueue.Startup(consoleOut);
}
else
{
DistributedIndexingActivityQueue.Startup(consoleOut);
}
}
public void ShutDown()
{
CommitManager?.ShutDown();
if (IndexingEngine == null)
{
return;
}
//TODO: [async] rewrite this using async APIs.
if (IndexingEngine.IndexIsCentralized)
{
CentralizedIndexingActivityQueue.ShutDown();
}
else
{
DistributedIndexingActivityQueue.ShutDown();
}
//TODO: [async] rewrite this using async APIs.
IndexingEngine.ShutDownAsync(CancellationToken.None).GetAwaiter().GetResult();
SnLog.WriteInformation("Indexing engine has stopped. Max task id and exceptions: " + DistributedIndexingActivityQueue.GetCurrentCompletionState());
}