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[INLONG-11616][SDK] Use self-defined Field and RowData conversion utils
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135 changes: 135 additions & 0 deletions
135
...ransform-sdk/src/main/java/org/apache/inlong/sdk/transform/utils/FieldToRowDataUtils.java
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| /* | ||
| * 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. | ||
| */ | ||
|
|
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| package org.apache.inlong.sdk.transform.utils; | ||
|
|
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| import org.apache.flink.table.data.DecimalData; | ||
| import org.apache.flink.table.data.GenericArrayData; | ||
| import org.apache.flink.table.data.GenericMapData; | ||
| import org.apache.flink.table.data.StringData; | ||
| import org.apache.flink.table.data.TimestampData; | ||
| import org.apache.flink.table.types.logical.ArrayType; | ||
| import org.apache.flink.table.types.logical.DecimalType; | ||
| import org.apache.flink.table.types.logical.LogicalType; | ||
| import org.apache.flink.table.types.logical.MapType; | ||
|
|
||
| import java.io.Serializable; | ||
| import java.math.BigDecimal; | ||
| import java.sql.Date; | ||
| import java.sql.Time; | ||
| import java.sql.Timestamp; | ||
| import java.util.Arrays; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
|
|
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| public class FieldToRowDataUtils { | ||
|
|
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| private static final long serialVersionUID = 1L; | ||
|
|
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| /** | ||
| * Base class of Field To RowData Converters. | ||
| */ | ||
| public interface FieldToRowDataConverter extends Serializable { | ||
|
|
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| Object convert(Object obj); | ||
| } | ||
|
|
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| public static FieldToRowDataConverter createConverter(LogicalType logicalType) { | ||
| return wrapIntoNullableConverter(createFieldRowConverter(logicalType)); | ||
| } | ||
|
|
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| private static FieldToRowDataConverter wrapIntoNullableConverter( | ||
| FieldToRowDataConverter converter) { | ||
| return obj -> { | ||
| if (obj == null) { | ||
| return null; | ||
| } | ||
| return converter.convert(obj); | ||
| }; | ||
| } | ||
|
|
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| private static FieldToRowDataConverter createFieldRowConverter(LogicalType fieldType) { | ||
| switch (fieldType.getTypeRoot()) { | ||
| case NULL: | ||
| return (obj) -> null; | ||
| case BOOLEAN: | ||
| return obj -> Boolean.parseBoolean(obj.toString()); | ||
| case TINYINT: | ||
| return obj -> Byte.parseByte(obj.toString()); | ||
| case SMALLINT: | ||
| return obj -> Short.parseShort(obj.toString()); | ||
| case INTERVAL_YEAR_MONTH: | ||
| case INTEGER: | ||
| return obj -> Integer.parseInt(obj.toString()); | ||
| case INTERVAL_DAY_TIME: | ||
| case BIGINT: | ||
| return obj -> Long.parseLong(obj.toString()); | ||
| case FLOAT: | ||
| return obj -> Float.parseFloat(obj.toString()); | ||
| case DOUBLE: | ||
| return obj -> Double.parseDouble(obj.toString()); | ||
| case BINARY: | ||
| case VARBINARY: | ||
| return obj -> obj.toString().getBytes(); | ||
| case CHAR: | ||
| case VARCHAR: | ||
| return (obj -> StringData.fromString((String) obj)); | ||
| case DATE: | ||
| return (obj -> ((Date) obj).toLocalDate().toEpochDay()); | ||
| case TIME_WITHOUT_TIME_ZONE: | ||
| return (obj -> ((Time) obj).toLocalTime().toSecondOfDay() * 1000); | ||
| case TIMESTAMP_WITH_LOCAL_TIME_ZONE: | ||
| case TIMESTAMP_WITHOUT_TIME_ZONE: | ||
| case TIMESTAMP_WITH_TIME_ZONE: | ||
| return obj -> TimestampData.fromTimestamp((Timestamp) obj); | ||
| case DECIMAL: | ||
| return obj -> DecimalData.fromBigDecimal( | ||
| (BigDecimal) obj, | ||
| DecimalType.DEFAULT_PRECISION, | ||
| DecimalType.DEFAULT_SCALE); | ||
| case ARRAY: | ||
| return obj -> { | ||
| final Object[] array = (Object[]) obj; | ||
| FieldToRowDataConverter elementConverter = | ||
| createFieldRowConverter(((ArrayType) fieldType).getElementType()); | ||
| Object[] converted = Arrays.stream(array) | ||
| .map(elementConverter::convert) | ||
| .toArray(); | ||
| return new GenericArrayData(converted); | ||
| }; | ||
| case MAP: | ||
| return obj -> { | ||
| FieldToRowDataConverter keyConverter = | ||
| createFieldRowConverter(((MapType) fieldType).getKeyType()); | ||
| FieldToRowDataConverter valueConverter = | ||
| createFieldRowConverter(((MapType) fieldType).getValueType()); | ||
| Map map = (Map) obj; | ||
| Map<Object, Object> internalMap = new HashMap<>(); | ||
| for (Object k : map.keySet()) { | ||
| internalMap.put(keyConverter.convert(k), | ||
| valueConverter.convert(map.get(k))); | ||
| } | ||
| return new GenericMapData(internalMap); | ||
| }; | ||
| case ROW: | ||
| case MULTISET: | ||
| case RAW: | ||
| default: | ||
| throw new UnsupportedOperationException("Unsupported type:" + fieldType); | ||
| } | ||
| } | ||
| } |
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