| /* |
| * 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.execution; |
| |
| import org.apache.hudi.client.WriteStatus; |
| import org.apache.hudi.client.common.TaskContextSupplier; |
| import org.apache.hudi.common.model.HoodieRecord; |
| import org.apache.hudi.common.model.HoodieRecordPayload; |
| import org.apache.hudi.common.util.queue.BoundedInMemoryQueueConsumer; |
| import org.apache.hudi.config.HoodieWriteConfig; |
| import org.apache.hudi.execution.HoodieLazyInsertIterable.HoodieInsertValueGenResult; |
| import org.apache.hudi.io.HoodieWriteHandle; |
| import org.apache.hudi.io.WriteHandleFactory; |
| import org.apache.hudi.table.HoodieTable; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * Consumes stream of hoodie records from in-memory queue and writes to one or more create-handles. |
| */ |
| public class CopyOnWriteInsertHandler<T extends HoodieRecordPayload> |
| extends BoundedInMemoryQueueConsumer<HoodieInsertValueGenResult<HoodieRecord>, List<WriteStatus>> { |
| |
| private HoodieWriteConfig config; |
| private String instantTime; |
| private boolean areRecordsSorted; |
| private HoodieTable hoodieTable; |
| private String idPrefix; |
| private TaskContextSupplier taskContextSupplier; |
| private WriteHandleFactory writeHandleFactory; |
| |
| private final List<WriteStatus> statuses = new ArrayList<>(); |
| // Stores the open HoodieWriteHandle for each table partition path |
| // If the records are consumed in order, there should be only one open handle in this mapping. |
| // Otherwise, there may be multiple handles. |
| private Map<String, HoodieWriteHandle> handles = new HashMap<>(); |
| |
| public CopyOnWriteInsertHandler(HoodieWriteConfig config, String instantTime, |
| boolean areRecordsSorted, HoodieTable hoodieTable, String idPrefix, |
| TaskContextSupplier taskContextSupplier, |
| WriteHandleFactory writeHandleFactory) { |
| this.config = config; |
| this.instantTime = instantTime; |
| this.areRecordsSorted = areRecordsSorted; |
| this.hoodieTable = hoodieTable; |
| this.idPrefix = idPrefix; |
| this.taskContextSupplier = taskContextSupplier; |
| this.writeHandleFactory = writeHandleFactory; |
| } |
| |
| @Override |
| public void consumeOneRecord(HoodieInsertValueGenResult<HoodieRecord> payload) { |
| final HoodieRecord insertPayload = payload.record; |
| String partitionPath = insertPayload.getPartitionPath(); |
| HoodieWriteHandle handle = handles.get(partitionPath); |
| if (handle == null) { |
| // If the records are sorted, this means that we encounter a new partition path |
| // and the records for the previous partition path are all written, |
| // so we can safely closely existing open handle to reduce memory footprint. |
| if (areRecordsSorted) { |
| closeOpenHandles(); |
| } |
| // Lazily initialize the handle, for the first time |
| handle = writeHandleFactory.create(config, instantTime, hoodieTable, |
| insertPayload.getPartitionPath(), idPrefix, taskContextSupplier); |
| handles.put(partitionPath, handle); |
| } |
| |
| if (!handle.canWrite(payload.record)) { |
| // Handle is full. Close the handle and add the WriteStatus |
| statuses.add(handle.close()); |
| // Open new handle |
| handle = writeHandleFactory.create(config, instantTime, hoodieTable, |
| insertPayload.getPartitionPath(), idPrefix, taskContextSupplier); |
| handles.put(partitionPath, handle); |
| } |
| handle.write(insertPayload, payload.insertValue, payload.exception); |
| } |
| |
| @Override |
| public void finish() { |
| closeOpenHandles(); |
| assert statuses.size() > 0; |
| } |
| |
| @Override |
| public List<WriteStatus> getResult() { |
| return statuses; |
| } |
| |
| private void closeOpenHandles() { |
| for (HoodieWriteHandle handle : handles.values()) { |
| statuses.add(handle.close()); |
| } |
| handles.clear(); |
| } |
| } |