public static async Task <TResult> ExecuteAsync <TResult>(
this IWriteOperation <TResult> operation,
IConnectionSourceHandle connectionSource,
TimeSpan timeout,
CancellationToken cancellationToken)
{
Ensure.IsNotNull(operation, "operation");
using (var writeBinding = new ConnectionSourceReadWriteBinding(connectionSource.Fork(), ReadPreference.Primary))
{
return(await operation.ExecuteAsync(writeBinding, timeout, cancellationToken).ConfigureAwait(false));
}
}
private AsyncCursor <TResult> CreateCursorFromCursorResult(IConnectionSourceHandle connectionSource, BsonDocument command, AggregateResult result, TimeSpan timeout, CancellationToken cancellationToken)
{
return(new AsyncCursor <TResult>(
connectionSource.Fork(),
CollectionNamespace,
command,
result.Results,
result.CursorId.GetValueOrDefault(0),
_batchSize ?? 0,
0, // limit
_resultSerializer,
MessageEncoderSettings,
timeout,
cancellationToken));
}
private Cursor <BsonDocument> CreateCursorFromCursorResult(IConnectionSourceHandle connectionSource, BsonDocument command, BsonDocument result, TimeSpan timeout, CancellationToken cancellationToken)
{
var firstBatch = ((BsonArray)result["cursor"]["firstBatch"]).Cast <BsonDocument>().ToList();
var cursorId = result["cursor"]["id"].ToInt64();
return(new Cursor <BsonDocument>(
connectionSource.Fork(),
DatabaseName,
CollectionName,
command,
firstBatch,
cursorId,
_batchSize ?? 0,
BsonDocumentSerializer.Instance,
timeout,
cancellationToken));
}
private Cursor<BsonDocument> CreateCursorFromCursorResult(IConnectionSourceHandle connectionSource, BsonDocument command, BsonDocument result, TimeSpan timeout, CancellationToken cancellationToken)
{
var firstBatch = ((BsonArray)result["cursor"]["firstBatch"]).Cast<BsonDocument>().ToList();
var cursorId = result["cursor"]["id"].ToInt64();
return new Cursor<BsonDocument>(
connectionSource.Fork(),
CollectionNamespace,
command,
firstBatch,
cursorId,
_batchSize ?? 0,
0, // limit
BsonDocumentSerializer.Instance,
MessageEncoderSettings,
timeout,
cancellationToken);
}
// methods
public Task <IConnectionSourceHandle> GetReadConnectionSourceAsync(TimeSpan timeout, CancellationToken cancellationToken)
{
ThrowIfDisposed();
return(Task.FromResult(_connectionSource.Fork()));
}
