@Override
    public Object parse(SourceData sourceData, int rowIndex, Context context) {
        Object degreeObj = degreeParser.parse(sourceData, rowIndex, context);
        if (degreeObj == null) {
            return null;
        }
        return Math.toRadians(OperatorTools.parseBigDecimal(degreeObj).doubleValue());
    }
RadiansFunction  ->  RADIANS(x)
description:
- Return NULL if x is NULL
- Return radians of x, Convert degrees to radians
inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/arithmetic/RadiansFunction.java