public static BsonDocument ToGroupDocument(this IMongoGroupBy fieldsGroupBy, string collectionName)
{
var _groupBy = new BsonDocument();
if (!string.IsNullOrWhiteSpace(collectionName))
{
_groupBy.Add(collectionName, string.Format("${0}", collectionName));
}
else
{
foreach (string _name in fieldsGroupBy.ToBsonDocument().Names)
{
_groupBy.Add(new BsonElement(_name, string.Format("${0}", _name)));
}
}
var _sums = new BsonDocument("_id", _groupBy);
foreach (string _name in fieldsGroupBy.ToBsonDocument().Names)
{
_sums.Add(_name, new BsonDocument("$sum", string.Format("${0}", _name)));
}
return(new BsonDocument("$group", _sums));
}
public override IEnumerable <BsonDocument> Group(IMongoQuery query, IMongoGroupBy keys, BsonDocument initial, BsonJavaScript reduce, BsonJavaScript finalize)
{
var sw = new Stopwatch();
sw.Start();
var result = base.Group(query, keys, initial, reduce, finalize);
sw.Stop();
var commandStringBuilder = new StringBuilder(1024);
commandStringBuilder.AppendFormat("db.{0}.group({{key, reduce, initial", Name);
if (query != null)
{
commandStringBuilder.Append(", cond");
}
if (initial != null)
{
commandStringBuilder.Append(", initial");
}
if (finalize != null)
{
commandStringBuilder.Append(", finalize");
}
commandStringBuilder.Append("})");
commandStringBuilder.AppendFormat("\nkey = {0}", keys.ToBsonDocument());
commandStringBuilder.Append("\nreduce = javascript");
commandStringBuilder.AppendFormat("\ninitial = {0}", initial.ToBsonDocument());
if (query != null)
{
commandStringBuilder.AppendFormat("\ncond = {0}", query.ToBsonDocument());
}
if (initial != null)
{
commandStringBuilder.AppendFormat("\ninitial = {0}", initial.ToBsonDocument());
}
if (finalize != null)
{
commandStringBuilder.Append("\nfinalize = javascript");
}
string commandString = commandStringBuilder.ToString();
ProfilerUtils.AddMongoTiming(commandString, sw.ElapsedMilliseconds, ExecuteType.Read);
return(result);
}