/*======================================================================================================= IIndexPopulator Members */
// caller: IndexPopulator.Populator, Import.Importer, Tests
public async STT.Task ClearAndPopulateAllAsync(CancellationToken cancellationToken, TextWriter consoleWriter = null)
{
using var op = SnTrace.Index.StartOperation("IndexPopulator ClearAndPopulateAll");
using var sa = new SystemAccount();
var stopIndexing = false;
// We must not assume that the indexing engine works correctly without running.
// Local engines may work, but centralized engines do not. This is why we have to
// start it if it is not running already. In that case we have to stop it
// after the operation.
if (!IndexManager.Running)
{
await IndexManager.StartAsync(consoleWriter, cancellationToken).ConfigureAwait(false);
stopIndexing = true;
}
// recreate
consoleWriter?.Write(" Cleanup index ... ");
await IndexManager.ClearIndexAsync(cancellationToken).ConfigureAwait(false);
consoleWriter?.WriteLine("ok");
await IndexManager.AddDocumentsAsync(LoadIndexDocumentsByPath("/Root"), cancellationToken).ConfigureAwait(false);
// delete progress characters
consoleWriter?.Write(" \n");
consoleWriter?.Write(" Commiting ... ");
await IndexManager.CommitAsync(cancellationToken).ConfigureAwait(false); // explicit commit
consoleWriter?.WriteLine("ok");
consoleWriter?.Write(" Deleting indexing activities ... ");
await IndexManager.DeleteAllIndexingActivitiesAsync(cancellationToken).ConfigureAwait(false);
if (stopIndexing)
{
IndexManager.ShutDown();
}
op.Successful = true;
}