private static IArrowType GetArrowType()

in csharp/src/Drivers/Apache/Hive2/HiveServer2Connection.cs [1302:1360]
57 lines of code
29 McCabe index (conditional complexity)

        private static IArrowType GetArrowType(int columnTypeId, string typeName, bool isColumnSizeValid, int? columnSize, int? decimalDigits)
        {
            switch (columnTypeId)
            {
                case (int)ColumnTypeId.BOOLEAN:
                    return BooleanType.Default;
                case (int)ColumnTypeId.TINYINT:
                    return Int8Type.Default;
                case (int)ColumnTypeId.SMALLINT:
                    return Int16Type.Default;
                case (int)ColumnTypeId.INTEGER:
                    return Int32Type.Default;
                case (int)ColumnTypeId.BIGINT:
                    return Int64Type.Default;
                case (int)ColumnTypeId.FLOAT:
                case (int)ColumnTypeId.REAL:
                    return FloatType.Default;
                case (int)ColumnTypeId.DOUBLE:
                    return DoubleType.Default;
                case (int)ColumnTypeId.VARCHAR:
                case (int)ColumnTypeId.NVARCHAR:
                case (int)ColumnTypeId.LONGVARCHAR:
                case (int)ColumnTypeId.LONGNVARCHAR:
                    return StringType.Default;
                case (int)ColumnTypeId.TIMESTAMP:
                    return new TimestampType(TimeUnit.Microsecond, timezone: (string?)null);
                case (int)ColumnTypeId.BINARY:
                case (int)ColumnTypeId.VARBINARY:
                case (int)ColumnTypeId.LONGVARBINARY:
                    return BinaryType.Default;
                case (int)ColumnTypeId.DATE:
                    return Date32Type.Default;
                case (int)ColumnTypeId.CHAR:
                case (int)ColumnTypeId.NCHAR:
                    return StringType.Default;
                case (int)ColumnTypeId.DECIMAL:
                case (int)ColumnTypeId.NUMERIC:
                    if (isColumnSizeValid && columnSize.HasValue && decimalDigits.HasValue)
                    {
                        return new Decimal128Type(columnSize.Value, decimalDigits.Value);
                    }
                    else
                    {
                        // Note: parsing the type name for SQL DECIMAL types as the precision and scale values
                        // may not be returned in the Thrift call to GetColumns
                        return SqlTypeNameParser<SqlDecimalParserResult>
                            .Parse(typeName, columnTypeId)
                            .Decimal128Type;
                    }
                case (int)ColumnTypeId.NULL:
                    return NullType.Default;
                case (int)ColumnTypeId.ARRAY:
                case (int)ColumnTypeId.JAVA_OBJECT:
                case (int)ColumnTypeId.STRUCT:
                    return StringType.Default;
                default:
                    throw new NotImplementedException($"Column type id: {columnTypeId} is not supported.");
            }
        }