Carl-Zhou-CN commented on code in PR #9600: URL: https://github.com/apache/seatunnel/pull/9600#discussion_r2234504165
########## seatunnel-transforms-v2/src/main/java/org/apache/seatunnel/transform/sql/zeta/functions/CastFunction.java: ########## @@ -0,0 +1,161 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.seatunnel.transform.sql.zeta.functions; + +import org.apache.seatunnel.api.table.type.BasicType; +import org.apache.seatunnel.api.table.type.DecimalType; +import org.apache.seatunnel.api.table.type.LocalTimeType; +import org.apache.seatunnel.api.table.type.PrimitiveByteArrayType; +import org.apache.seatunnel.api.table.type.SeaTunnelDataType; +import org.apache.seatunnel.api.table.type.SqlType; +import org.apache.seatunnel.common.exception.CommonErrorCodeDeprecated; +import org.apache.seatunnel.transform.exception.TransformException; + +import net.sf.jsqlparser.statement.create.table.ColDataType; + +import java.util.Arrays; +import java.util.List; + +public class CastFunction { + + public static final String DECIMAL = "DECIMAL"; + public static final String VARCHAR = "VARCHAR"; + public static final String STRING = "STRING"; + public static final String TINYINT = "TINYINT"; + public static final String SMALLINT = "SMALLINT"; + public static final String INT = "INT"; + public static final String INTEGER = "INTEGER"; + public static final String BIGINT = "BIGINT"; + public static final String LONG = "LONG"; + public static final String BYTE = "BYTE"; + public static final String BYTES = "BYTES"; + public static final String BINARY = "BINARY"; + public static final String DOUBLE = "DOUBLE"; + public static final String FLOAT = "FLOAT"; + public static final String TIMESTAMP = "TIMESTAMP"; + public static final String DATETIME = "DATETIME"; + public static final String DATE = "DATE"; + public static final String TIME = "TIME"; + public static final String BOOLEAN = "BOOLEAN"; + + public static final List<SqlType> INT_CAST_TYPE = + Arrays.asList( + SqlType.TINYINT, SqlType.SMALLINT, SqlType.INT, SqlType.BIGINT, SqlType.STRING); + public static final List<SqlType> LONG_CAST_TYPES = + Arrays.asList( + SqlType.TINYINT, SqlType.SMALLINT, SqlType.INT, SqlType.BIGINT, SqlType.STRING); + public static final List<SqlType> FLOAT_CAST_TYPES = + Arrays.asList( + SqlType.TINYINT, + SqlType.SMALLINT, + SqlType.INT, + SqlType.BIGINT, + SqlType.FLOAT, + SqlType.DOUBLE, + SqlType.STRING); + public static final List<SqlType> BOOLEAN_CAST_TYPES = + Arrays.asList( + SqlType.BOOLEAN, + SqlType.STRING, + SqlType.BIGINT, + SqlType.INT, + SqlType.SMALLINT, + SqlType.TINYINT, + SqlType.FLOAT, + SqlType.DOUBLE); + public static final List<SqlType> DATETIME_CAST_TYPES = + Arrays.asList(SqlType.TIMESTAMP, SqlType.TIMESTAMP_TZ, SqlType.BIGINT); + public static final List<SqlType> DATE_CAST_TYPES = + Arrays.asList(SqlType.TIMESTAMP, SqlType.TIMESTAMP_TZ, SqlType.DATE, SqlType.INT); + public static final List<SqlType> TIME_CAST_TYPES = + Arrays.asList(SqlType.TIMESTAMP, SqlType.TIMESTAMP_TZ, SqlType.TIME, SqlType.INT); + + public static SeaTunnelDataType<?> getCastType(SqlType originType, ColDataType colDataType) { + String dataType = colDataType.getDataType(); + switch (dataType.toUpperCase()) { + case DECIMAL: + List<String> ps = colDataType.getArgumentsStringList(); + return new DecimalType(Integer.parseInt(ps.get(0)), Integer.parseInt(ps.get(1))); + case VARCHAR: + case STRING: + return BasicType.STRING_TYPE; + case BYTE: + case TINYINT: + if (SqlType.TINYINT.equals(originType) || SqlType.STRING.equals(originType)) { Review Comment: Ok. Thank you for your answer -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@seatunnel.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
