leesf commented on a change in pull request #2176: URL: https://github.com/apache/hudi/pull/2176#discussion_r522964985
########## File path: hudi-client/hudi-flink-client/src/main/java/org/apache/hudi/index/state/FlinkInMemoryStateIndex.java ########## @@ -0,0 +1,135 @@ +/* + * 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.hudi.index.state; + +import org.apache.hudi.client.WriteStatus; +import org.apache.hudi.client.common.HoodieEngineContext; +import org.apache.hudi.client.common.HoodieFlinkEngineContext; +import org.apache.hudi.common.model.HoodieKey; +import org.apache.hudi.common.model.HoodieRecord; +import org.apache.hudi.common.model.HoodieRecordLocation; +import org.apache.hudi.common.model.HoodieRecordPayload; +import org.apache.hudi.common.util.Option; +import org.apache.hudi.config.HoodieWriteConfig; +import org.apache.hudi.exception.HoodieIndexException; +import org.apache.hudi.index.FlinkHoodieIndex; +import org.apache.hudi.table.HoodieTable; + +import org.apache.flink.api.common.state.MapState; +import org.apache.flink.api.common.state.MapStateDescriptor; +import org.apache.flink.api.common.typeinfo.TypeInformation; +import org.apache.log4j.LogManager; +import org.apache.log4j.Logger; + +import java.util.List; + +/** + * Hoodie index implementation backed by flink state. + * + * @param <T> type of payload + */ +public class FlinkInMemoryStateIndex<T extends HoodieRecordPayload> extends FlinkHoodieIndex<T> { + + private static final Logger LOG = LogManager.getLogger(FlinkInMemoryStateIndex.class); + private MapState<HoodieKey, HoodieRecordLocation> mapState; + + public FlinkInMemoryStateIndex(HoodieFlinkEngineContext context, HoodieWriteConfig config) { + super(config); + if (context.getRuntimeContext() != null) { + MapStateDescriptor<HoodieKey, HoodieRecordLocation> indexStateDesc = + new MapStateDescriptor<>("indexState", TypeInformation.of(HoodieKey.class), TypeInformation.of(HoodieRecordLocation.class)); + if (context.getRuntimeContext() != null) { + mapState = context.getRuntimeContext().getMapState(indexStateDesc); + } + } + } + + @Override + public List<HoodieRecord<T>> tagLocation(List<HoodieRecord<T>> records, + HoodieEngineContext context, + HoodieTable<T, List<HoodieRecord<T>>, List<HoodieKey>, List<WriteStatus>> hoodieTable) throws HoodieIndexException { + return context.map(records, record -> { + try { + if (mapState.contains(record.getKey())) { + record.unseal(); + record.setCurrentLocation(mapState.get(record.getKey())); + record.seal(); + } + } catch (Exception e) { + LOG.error(String.format("Tag record location failed, key = %s, %s", record.getRecordKey(), e.getMessage())); + } + return record; + }, 0); + } + + @Override + public List<WriteStatus> updateLocation(List<WriteStatus> writeStatuses, + HoodieEngineContext context, + HoodieTable<T, List<HoodieRecord<T>>, List<HoodieKey>, List<WriteStatus>> hoodieTable) throws HoodieIndexException { + return context.map(writeStatuses, writeStatus -> { + for (HoodieRecord record : writeStatus.getWrittenRecords()) { + if (!writeStatus.isErrored(record.getKey())) { + HoodieKey key = record.getKey(); + Option<HoodieRecordLocation> newLocation = record.getNewLocation(); + if (newLocation.isPresent()) { + try { + mapState.put(key, newLocation.get()); + } catch (Exception e) { + LOG.error(String.format("Update record location failed, key = %s, %s", record.getRecordKey(), e.getMessage())); Review comment: ditto ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: [email protected]
