private RoleMappedSchema(Schema schema, Dictionary <string, IReadOnlyList <ColumnInfo> > map)
{
Contracts.AssertValue(schema);
Contracts.AssertValue(map);
Schema = schema;
_map = map;
foreach (var kvp in _map)
{
Contracts.Assert(Utils.Size(kvp.Value) > 0);
var cols = kvp.Value;
#if DEBUG
foreach (var info in cols)
{
Contracts.Assert(!schema.IsHidden(info.Index), "How did a hidden column sneak in?");
}
#endif
if (cols.Count == 1)
{
switch (kvp.Key)
{
case FeatureString:
Feature = cols[0];
break;
case LabelString:
Label = cols[0];
break;
case GroupString:
Group = cols[0];
break;
case WeightString:
Weight = cols[0];
break;
case NameString:
Name = cols[0];
break;
}
}
}
}