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[FLINK-32396][jdbc-driver] Support timestamp and timestamp_ltz for jd…
…bc driver and sql gateway (apache#22832) * [FLINK-32396][jdbc-driver] Support timestamp and timestamp_ltz for jdbc driver and sql gateway
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187 changes: 187 additions & 0 deletions
187
...src/main/java/org/apache/flink/table/gateway/rest/util/RowDataLocalTimeZoneConverter.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. | ||
| */ | ||
|
|
||
| package org.apache.flink.table.gateway.rest.util; | ||
|
|
||
| import org.apache.flink.configuration.ReadableConfig; | ||
| import org.apache.flink.table.api.config.TableConfigOptions; | ||
| import org.apache.flink.table.data.ArrayData; | ||
| import org.apache.flink.table.data.GenericArrayData; | ||
| import org.apache.flink.table.data.GenericMapData; | ||
| import org.apache.flink.table.data.GenericRowData; | ||
| import org.apache.flink.table.data.MapData; | ||
| import org.apache.flink.table.data.RowData; | ||
| import org.apache.flink.table.data.TimestampData; | ||
| import org.apache.flink.table.types.logical.ArrayType; | ||
| import org.apache.flink.table.types.logical.LocalZonedTimestampType; | ||
| import org.apache.flink.table.types.logical.LogicalType; | ||
| import org.apache.flink.table.types.logical.LogicalTypeRoot; | ||
| import org.apache.flink.table.types.logical.MapType; | ||
| import org.apache.flink.table.types.logical.MultisetType; | ||
| import org.apache.flink.table.types.logical.RowType; | ||
| import org.apache.flink.table.utils.DateTimeUtils; | ||
|
|
||
| import java.time.ZoneId; | ||
| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.Collections; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.TimeZone; | ||
| import java.util.stream.Collectors; | ||
|
|
||
| /** | ||
| * Convert {@link LocalZonedTimestampType} data in {@link RowData} to {@link TimestampData} based on | ||
| * the local time zone. | ||
| */ | ||
| public class RowDataLocalTimeZoneConverter { | ||
| private final List<RowData.FieldGetter> fieldGetterList; | ||
| private final List<LogicalType> logicalTypeList; | ||
| private final boolean hasTimeZoneData; | ||
| private final TimeZone timeZone; | ||
|
|
||
| public RowDataLocalTimeZoneConverter(List<LogicalType> logicalTypeList, ReadableConfig config) { | ||
| this(logicalTypeList, TimeZone.getTimeZone(getSessionTimeZone(config))); | ||
| } | ||
|
|
||
| public RowDataLocalTimeZoneConverter(List<LogicalType> logicalTypeList, TimeZone timeZone) { | ||
| this.logicalTypeList = logicalTypeList; | ||
| this.timeZone = timeZone; | ||
| this.fieldGetterList = new ArrayList<>(logicalTypeList.size()); | ||
| for (int i = 0; i < logicalTypeList.size(); i++) { | ||
| fieldGetterList.add(RowData.createFieldGetter(logicalTypeList.get(i), i)); | ||
| } | ||
| this.hasTimeZoneData = checkTimeZoneType(logicalTypeList); | ||
| } | ||
|
|
||
| private boolean checkTimeZoneType(List<LogicalType> logicalTypeList) { | ||
| for (LogicalType logicalType : logicalTypeList) { | ||
| if (logicalType.getTypeRoot() == LogicalTypeRoot.TIMESTAMP_WITH_LOCAL_TIME_ZONE) { | ||
| return true; | ||
| } else if (logicalType.getTypeRoot() == LogicalTypeRoot.MAP) { | ||
| MapType mapType = (MapType) logicalType; | ||
| if (checkTimeZoneType( | ||
| Arrays.asList(mapType.getKeyType(), mapType.getValueType()))) { | ||
| return true; | ||
| } | ||
| } else if (logicalType.getTypeRoot() == LogicalTypeRoot.ARRAY) { | ||
| ArrayType arrayType = (ArrayType) logicalType; | ||
| if (checkTimeZoneType(Collections.singletonList(arrayType.getElementType()))) { | ||
| return true; | ||
| } | ||
| } else if (logicalType.getTypeRoot() == LogicalTypeRoot.MULTISET) { | ||
| MultisetType multisetType = (MultisetType) logicalType; | ||
| if (checkTimeZoneType(Collections.singletonList(multisetType.getElementType()))) { | ||
| return true; | ||
| } | ||
| } else if (logicalType.getTypeRoot() == LogicalTypeRoot.ROW) { | ||
| RowType rowType = (RowType) logicalType; | ||
| if (checkTimeZoneType( | ||
| rowType.getFields().stream() | ||
| .map(RowType.RowField::getType) | ||
| .collect(Collectors.toList()))) { | ||
| return true; | ||
| } | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
|
|
||
| public RowData convertTimeZoneRowData(RowData rowData) { | ||
| if (!hasTimeZoneData()) { | ||
| return rowData; | ||
| } | ||
|
|
||
| GenericRowData result = new GenericRowData(rowData.getRowKind(), rowData.getArity()); | ||
| for (int i = 0; i < fieldGetterList.size(); i++) { | ||
| result.setField( | ||
| i, | ||
| convertLocalTimeZoneValue( | ||
| fieldGetterList.get(i).getFieldOrNull(rowData), | ||
| logicalTypeList.get(i))); | ||
| } | ||
| return result; | ||
| } | ||
|
|
||
| private Object convertLocalTimeZoneValue(Object object, LogicalType dataType) { | ||
| if (object == null) { | ||
| return null; | ||
| } | ||
| switch (dataType.getTypeRoot()) { | ||
| case TIMESTAMP_WITH_LOCAL_TIME_ZONE: | ||
| { | ||
| return DateTimeUtils.timestampWithLocalZoneToTimestamp( | ||
| (TimestampData) object, timeZone); | ||
| } | ||
| case MAP: | ||
| { | ||
| MapType mapType = (MapType) dataType; | ||
| MapData mapData = (MapData) object; | ||
| ArrayData keyArray = mapData.keyArray(); | ||
| ArrayData valueArray = mapData.valueArray(); | ||
| ArrayData.ElementGetter keyGetter = | ||
| ArrayData.createElementGetter(mapType.getKeyType()); | ||
| ArrayData.ElementGetter valueGetter = | ||
| ArrayData.createElementGetter(mapType.getValueType()); | ||
| Map<Object, Object> mapValue = new HashMap<>(); | ||
| for (int j = 0; j < keyArray.size(); j++) { | ||
| mapValue.put( | ||
| convertLocalTimeZoneValue( | ||
| keyGetter.getElementOrNull(keyArray, j), | ||
| mapType.getKeyType()), | ||
| convertLocalTimeZoneValue( | ||
| valueGetter.getElementOrNull(valueArray, j), | ||
| mapType.getValueType())); | ||
| } | ||
| return new GenericMapData(mapValue); | ||
| } | ||
| case ARRAY: | ||
| { | ||
| ArrayType arrayType = (ArrayType) dataType; | ||
| ArrayData arrayData = (ArrayData) object; | ||
| ArrayData.ElementGetter dataGetter = | ||
| ArrayData.createElementGetter(arrayType.getElementType()); | ||
| List<Object> arrayValues = new ArrayList<>(arrayData.size()); | ||
| for (int i = 0; i < arrayData.size(); i++) { | ||
| arrayValues.add( | ||
| convertLocalTimeZoneValue( | ||
| dataGetter.getElementOrNull(arrayData, i), | ||
| arrayType.getElementType())); | ||
| } | ||
| return new GenericArrayData(arrayValues.toArray()); | ||
| } | ||
| default: | ||
| { | ||
| return object; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public boolean hasTimeZoneData() { | ||
| return hasTimeZoneData; | ||
| } | ||
|
|
||
| /** Get time zone from the given session config. */ | ||
| private static ZoneId getSessionTimeZone(ReadableConfig sessionConfig) { | ||
| final String zone = sessionConfig.get(TableConfigOptions.LOCAL_TIME_ZONE); | ||
| return TableConfigOptions.LOCAL_TIME_ZONE.defaultValue().equals(zone) | ||
| ? ZoneId.systemDefault() | ||
| : ZoneId.of(zone); | ||
| } | ||
| } |
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