public static String toDorisType()

in flink-doris-connector/src/main/java/org/apache/doris/flink/tools/cdc/db2/Db2Type.java [45:93]
47 lines of code
26 McCabe index (conditional complexity)

    public static String toDorisType(String db2Type, Integer precision, Integer scale) {
        db2Type = db2Type.toUpperCase();
        switch (db2Type) {
            case BOOLEAN:
                return DorisType.BOOLEAN;
            case SMALLINT:
                return DorisType.SMALLINT;
            case INTEGER:
            case INT:
                return DorisType.INT;
            case BIGINT:
                return DorisType.BIGINT;
            case REAL:
                return DorisType.FLOAT;
            case DOUBLE:
                return DorisType.DOUBLE;
            case DATE:
                return DorisType.DATE_V2;
            case DECFLOAT:
            case DECIMAL:
            case NUMERIC:
                if (precision != null && precision > 0 && precision <= 38) {
                    if (scale != null && scale >= 0) {
                        return String.format("%s(%s,%s)", DorisType.DECIMAL_V3, precision, scale);
                    }
                    return String.format("%s(%s,%s)", DorisType.DECIMAL_V3, precision, 0);
                } else {
                    return DorisType.STRING;
                }
            case CHARACTER:
            case CHAR:
            case VARCHAR:
            case LONG_VARCHAR:
                Preconditions.checkNotNull(precision);
                return precision * 3 > 65533
                        ? DorisType.STRING
                        : String.format("%s(%s)", DorisType.VARCHAR, precision * 3);
            case TIMESTAMP:
                return String.format(
                        "%s(%s)", DorisType.DATETIME_V2, Math.min(scale == null ? 0 : scale, 6));
            case TIME:
            case VARGRAPHIC:
                // Currently, the Flink CDC connector does not support the XML data type from DB2.
                // Case XML:
                return DorisType.STRING;
            default:
                throw new UnsupportedOperationException("Unsupported DB2 Type: " + db2Type);
        }
    }