public string Field(Field field)
{
if (field.IsConditionless())
{
return(null);
}
var name = !field.Name.IsNullOrEmpty()
? field.Name
: field.Expression != null
? this.FieldResolver.Resolve(field.Expression)
: field.Property != null
? this.FieldResolver.Resolve(field.Property)
: null;
if (name == null)
{
throw new ArgumentException("Could not resolve a field name");
}
if (field != null && field.Boost.HasValue)
{
name += "^" + field.Boost.Value.ToString(CultureInfo.InvariantCulture);
}
return(name);
}
private string ResolveFieldName(Field field)
{
if (field.IsConditionless())
{
return(null);
}
if (!field.Name.IsNullOrEmpty())
{
return(field.Name);
}
if (field.Expression != null && !field.CachableExpression)
{
return(this.Resolve(field.Expression, field.Property));
}
string fieldName;
if (this.Fields.TryGetValue(field, out fieldName))
{
return(fieldName);
}
fieldName = this.Resolve(field.Expression, field.Property);
this.Fields.TryAdd(field, fieldName);
return(fieldName);
}
public string Resolve(Field field)
{
if (field.IsConditionless())
{
return(null);
}
if (!field.Name.IsNullOrEmpty())
{
return(field.Name);
}
string f;
if (this.Fields.TryGetValue(field, out f))
{
return(f);
}
f = this.Resolve(field.Expression, field.Property);
this.Fields.TryAdd(field, f);
return(f);
}