public IDataSource Parse(JobParser parser, ParseState state)
{
var connectionString = state.TryGet("connection", ExperienceExtractorWebApiConfig.XdbConnectionString, true);
if (!connectionString.StartsWith("mongodb://"))
{
var connection = ConfigurationManager.ConnectionStrings[connectionString];
if (connection == null)
{
throw state.AttributeError("Connection string '{0}' not found", connectionString);
}
connectionString = connection.ConnectionString;
}
var source = new MongoDbVisitAggregationContextSource(new MongoDbDriver(connectionString), ExperienceExtractorWebApiConfig.JobExecutionSettings.LoadThreads);
//source.SecondaryLookup = state.TryGet("SecondaryLookup", false);
var index = state.TryGet <string>("index");
if (!string.IsNullOrEmpty(index))
{
source.CursorInitializing += (sender, cursor) =>
{
if (index == "$natural")
{
cursor.SetSortOrder(SortBy.Ascending("$natural"));
}
else
{
cursor.SetHint(index);
}
};
}
var fields = state.TryGet("fields", new string[0]);
if (fields.Length > 0)
{
source.CursorInitializing += (sender, cursor) => cursor.SetFields(fields);
}
foreach (var filter in state.SelectMany("Filters"))
{
source.Filters.Add(parser.ParseDataFilter(filter));
}
return(source);
}