public async void InnerExecuteFind(bool explain = false)
{
Owner.Executing = true;
Guid operationID = Guid.NewGuid();
Task <List <BsonDocument> > task = null;
bool stopRequested = false;
try
{
task = Owner.Service.FindAsync(Owner.Database, Owner.Collection, Find.Deserialize <BsonDocument>(Constants.FindProperty), Sort.Deserialize <BsonDocument>(Constants.SortProperty), Projection.Deserialize <BsonDocument>(Constants.ProjectionProperty), Size, Skip, explain, operationID, Owner.Cts.Token);
var results = await task.WithCancellation(Owner.Cts.Token);
Owner.Executing = false;
if (!explain)
{
Owner.ShowPager = true;
StringBuilder sb = new StringBuilder();
int index = 1;
sb.Append("[");
foreach (var result in results)
{
sb.AppendLine();
sb.Append("/* # ");
sb.Append(index.ToString());
sb.AppendLine(" */");
sb.Append(result.ToJson(Options.JsonWriterSettings));
sb.Append(",");
index++;
}
if (results.Count > 0)
{
sb.Length -= 1;
}
sb.AppendLine();
sb.Append("]");
Owner.RawResult = sb.ToString();
sb.Clear();
}
else
{
Owner.ShowPager = false;
if (results.Count > 0)
{
Owner.RawResult = results[0].ToJson(Options.JsonWriterSettings);
}
else
{
Owner.RawResult = "";
}
}
Owner.SelectedViewIndex = 0;
Owner.Root = new ResultsViewModel(results, Owner);
GC.Collect();
}
catch (BsonExtensions.BsonParseException ex)
{
LoggerHelper.Logger.Error("Exception while executing find command", ex);
Owner.SelectedViewIndex = 1;
Owner.RawResult = ex.Message;
Owner.Root = null;
Messenger.Default.Send(new NotificationMessage <BsonExtensions.BsonParseException>(this, ex, Constants.FindParseException));
}
catch (OperationCanceledException)
{
stopRequested = true;
}
catch (Exception ex)
{
Utils.LoggerHelper.Logger.Error("Exception while executing find command", ex);
Owner.SelectedViewIndex = 1;
Owner.RawResult = ex.Message;
Owner.Root = null;
}
finally
{
Owner.Executing = false;
}
if (stopRequested)
{
if (!task.IsCompleted)
{
task.ContinueWith(t =>
{
if (t.Exception != null)
{
Utils.LoggerHelper.Logger.Warn("Exception while executing find command", t.Exception);
}
});
var currentOp = await Owner.Service.Eval(Owner.Database, "function() { return db.currentOP(); }");
if (currentOp != null)
{
var operation = currentOp.AsBsonDocument["inprog"].AsBsonArray.FirstOrDefault(item => item.AsBsonDocument.Contains("query") && item.AsBsonDocument["query"].AsBsonDocument.Contains("$comment") && item.AsBsonDocument["query"]["$comment"].AsString == operationID.ToString());
if (operation != null)
{
await Owner.Service.Eval(Owner.Database, string.Format("function() {{ return db.killOp({0}); }}", operation["opid"].AsInt32));
}
}
}
}
}