public static Task WatchIndexesAsync(this IQueryIndexManager queryIndexManager, string bucketName, IEnumerable <string> indexNames, Action <WatchQueryIndexOptions> configureOptions)
{
var options = new WatchQueryIndexOptions();
configureOptions(options);
return(queryIndexManager.WatchIndexesAsync(bucketName, indexNames, options));
}
public async Task WatchIndexesAsync(string bucketName, IEnumerable <string> indexNames, WatchQueryIndexOptions options = null)
{
options = options ?? WatchQueryIndexOptions.Default;
var indexesToWatch = string.Join(", ", indexNames.ToList());
Logger.LogInformation($"Attempting to watch pending indexes ({indexesToWatch}) for bucket {bucketName}");
try
{
while (!options.CancellationToken.IsCancellationRequested)
{
var indexes = await this.GetAllIndexesAsync(bucketName,
queryOptions => queryOptions.WithCancellationToken(options.CancellationToken)
);
var pendingIndexes = indexes.Where(index => index.State != "online")
.Select(index => index.Name)
.Intersect(indexNames);
if (!pendingIndexes.Any())
{
break;
}
Logger.LogInformation($"Still waiting for indexes to complete building ({indexesToWatch})");
await Task.Delay(WatchIndexSleepDuration);
}
}
catch (TaskCanceledException)
{
// application cancelled watch task
}
catch (Exception exception)
{
Logger.LogError(exception, $"Error trying to watch pending indexes ({indexesToWatch}) for bucket {bucketName}");
throw;
}
}