/**
* Searches through the specified {@link MultiEncoder}'s previously configured
* encoders to find and return one that is of type {@link DateEncoder}
*
* @param enc the containing {@code MultiEncoder}
* @return
*/
private Optional <SDRPassThroughEncoder> GetSDRPassThroughEncoder(MultiEncoder enc)
{
foreach (EncoderTuple t in enc.GetEncoders(enc))
{
if (t.GetEncoder() is SDRPassThroughEncoder)
{
return(new Optional <SDRPassThroughEncoder>(t.GetEncoder <SDRPassThroughEncoder>())); // Optional.of((SDRPassThroughEncoder)t.getEncoder());
}
}
return(Optional <SDRPassThroughEncoder> .Empty());
}
/**
* Searches through the specified {@link MultiEncoder}'s previously configured
* encoders to find and return one that is of type {@link DateEncoder}
*
* @param enc the containing {@code MultiEncoder}
* @return
*/
private Optional <DateEncoder> GetDateEncoder(MultiEncoder enc)
{
foreach (EncoderTuple t in enc.GetEncoders(enc))
{
if (t.GetEncoder() is DateEncoder)
{
return(new Optional <DateEncoder>(t.GetEncoder <DateEncoder>()));//Optional.of((DateEncoder)t.GetEncoder());
}
}
return(Optional <DateEncoder> .Empty());
}
/**
* Searches through the specified {@link MultiEncoder}'s previously configured
* encoders to find and return one that is of type {@link CategoryEncoder} or
* {@link SDRCategoryEncoder}
*
* @param enc the containing {@code MultiEncoder}
* @return
*/
private Optional <IEncoder> GetCategoryEncoder(MultiEncoder enc)
{
foreach (EncoderTuple t in enc.GetEncoders(enc))
{
if ((t.GetEncoder() is CategoryEncoder) || (t.GetEncoder() is SDRCategoryEncoder))
{
return(new Optional <IEncoder>(t.GetEncoder())); //Optional.of(t.getEncoder());
}
}
return(Optional <IEncoder> .Empty());
}
/**
* Searches through the specified {@link MultiEncoder}'s previously configured
* encoders to find and return one that is of type {@link CoordinateEncoder} or
* {@link GeospatialCoordinateEncoder}
*
* @param enc the containing {@code MultiEncoder}
* @return
*/
private Optional <IEncoder> GetCoordinateEncoder(MultiEncoder enc)
{
foreach (EncoderTuple t in enc.GetEncoders(enc))
{
if ((t.GetEncoder() is CoordinateEncoder) || (t.GetEncoder() is GeospatialCoordinateEncoder))
{
return(new Optional <IEncoder>(t.GetEncoder())); // Optional.of(t.getEncoder());
}
}
return(Optional <IEncoder> .Empty());
}
/**
* Sets the local parameters used to configure the major
* algorithmic components.
*/
public override void InitEncoder(Parameters p)
{
localParameters = p;
Map <string, Map <string, object> > encoderSettings;
if ((encoderSettings = (Map <string, Map <string, object> >)p.GetParameterByKey(Parameters.KEY.FIELD_ENCODING_MAP)) != null &&
!encoder.GetEncoders().Any() &&
indexToEncoderMap == null)
{
InitEncoders(encoderSettings);
MakeIndexEncoderMap();
}
}
/**
* Searches through the specified {@link MultiEncoder}'s previously configured
* encoders to find and return one that is of type {@link ScalarEncoder},
* {@link RandomDistributedScalarEncoder}, {@link AdaptiveScalarEncoder},
* {@link LogEncoder} or {@link DeltaEncoder}.
*
* @param enc the containing {@code MultiEncoder}
* @return
*/
private Optional <IEncoder> GetNumberEncoder(MultiEncoder enc)
{
foreach (EncoderTuple t in enc.GetEncoders(enc))
{
if ((t.GetEncoder() is RandomDistributedScalarEncoder) ||
(t.GetEncoder() is ScalarEncoder) ||
(t.GetEncoder() is AdaptiveScalarEncoder) ||
(t.GetEncoder() is LogEncoder) ||
(t.GetEncoder() is DeltaEncoder))
{
return(new Optional <IEncoder>(t.GetEncoder())); // Optional.of(t.getEncoder());
}
}
return(Optional <IEncoder> .Empty());
}