/// <summary> Initializes a new instance of DistanceScoringFunction. </summary>
/// <param name="fieldName"> The name of the field used as input to the scoring function. </param>
/// <param name="boost"> A multiplier for the raw score. Must be a positive number not equal to 1.0. </param>
/// <param name="parameters"> Parameter values for the distance scoring function. </param>
/// <exception cref="ArgumentException"><paramref name="fieldName"/> is an empty string.</exception>
/// <exception cref="ArgumentNullException"><paramref name="fieldName"/> or <paramref name="parameters"/> is null.</exception>
public DistanceScoringFunction(string fieldName, double boost, DistanceScoringParameters parameters) : base(fieldName, boost)
{
Argument.AssertNotNullOrEmpty(fieldName, nameof(fieldName));
Argument.AssertNotNull(parameters, nameof(parameters));
Parameters = parameters;
Type = "distance";
}
public DistanceScoringFunction(DistanceScoringParameters parameters, string fieldName, double boost) : base(fieldName, boost)
{
if (parameters == null)
{
throw new ArgumentNullException(nameof(parameters));
}
if (fieldName == null)
{
throw new ArgumentNullException(nameof(fieldName));
}
Parameters = parameters;
Type = "distance";
}
internal static DistanceScoringParameters DeserializeDistanceScoringParameters(JsonElement element)
{
DistanceScoringParameters result = new DistanceScoringParameters();
foreach (var property in element.EnumerateObject())
{
if (property.NameEquals("referencePointParameter"))
{
result.ReferencePointParameter = property.Value.GetString();
continue;
}
if (property.NameEquals("boostingDistance"))
{
result.BoostingDistance = property.Value.GetDouble();
continue;
}
}
return(result);
}
internal static DistanceScoringFunction DeserializeDistanceScoringFunction(JsonElement element)
{
DistanceScoringParameters distance = default;
string type = default;
string fieldName = default;
double boost = default;
ScoringFunctionInterpolation?interpolation = default;
foreach (var property in element.EnumerateObject())
{
if (property.NameEquals("distance"))
{
distance = DistanceScoringParameters.DeserializeDistanceScoringParameters(property.Value);
continue;
}
if (property.NameEquals("type"))
{
type = property.Value.GetString();
continue;
}
if (property.NameEquals("fieldName"))
{
fieldName = property.Value.GetString();
continue;
}
if (property.NameEquals("boost"))
{
boost = property.Value.GetDouble();
continue;
}
if (property.NameEquals("interpolation"))
{
if (property.Value.ValueKind == JsonValueKind.Null)
{
continue;
}
interpolation = property.Value.GetString().ToScoringFunctionInterpolation();
continue;
}
}
return(new DistanceScoringFunction(distance, type, fieldName, boost, interpolation));
}
internal static DistanceScoringFunction DeserializeDistanceScoringFunction(JsonElement element)
{
DistanceScoringFunction result = new DistanceScoringFunction();
foreach (var property in element.EnumerateObject())
{
if (property.NameEquals("distance"))
{
result.Parameters = DistanceScoringParameters.DeserializeDistanceScoringParameters(property.Value);
continue;
}
if (property.NameEquals("type"))
{
result.Type = property.Value.GetString();
continue;
}
if (property.NameEquals("fieldName"))
{
result.FieldName = property.Value.GetString();
continue;
}
if (property.NameEquals("boost"))
{
result.Boost = property.Value.GetDouble();
continue;
}
if (property.NameEquals("interpolation"))
{
if (property.Value.ValueKind == JsonValueKind.Null)
{
continue;
}
result.Interpolation = property.Value.GetString().ToScoringFunctionInterpolation();
continue;
}
}
return(result);
}
internal DistanceScoringFunction(string type, string fieldName, double boost, ScoringFunctionInterpolation?interpolation, DistanceScoringParameters parameters) : base(type, fieldName, boost, interpolation)
{
Parameters = parameters;
Type = type ?? "distance";
}
