danny0405 commented on a change in pull request #2553: URL: https://github.com/apache/hudi/pull/2553#discussion_r572535581
########## File path: hudi-client/hudi-flink-client/src/main/java/org/apache/hudi/io/FlinkCreateHandle.java ########## @@ -0,0 +1,148 @@ +/* + * 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.io; + +import org.apache.hudi.client.WriteStatus; +import org.apache.hudi.common.engine.TaskContextSupplier; +import org.apache.hudi.common.fs.FSUtils; +import org.apache.hudi.common.model.HoodieRecord; +import org.apache.hudi.common.model.HoodieRecordPayload; +import org.apache.hudi.common.model.HoodieWriteStat; +import org.apache.hudi.common.util.HoodieTimer; +import org.apache.hudi.common.util.collection.Pair; +import org.apache.hudi.config.HoodieWriteConfig; +import org.apache.hudi.exception.HoodieInsertException; +import org.apache.hudi.table.HoodieTable; + +import org.apache.avro.Schema; +import org.apache.hadoop.fs.Path; +import org.apache.log4j.LogManager; +import org.apache.log4j.Logger; + +import java.io.IOException; +import java.util.Collections; +import java.util.List; +import java.util.Map; + +/** + * A {@link HoodieMergeHandle} that supports create write incrementally(mini-batches). + * + * <p>For the first mini-batch, it initialize and set up the next file path to write, + * but does not close the file writer until all the mini-batches write finish. Each mini-batch + * data are appended to the same file. + * + * @param <T> Payload type + * @param <I> Input type + * @param <K> Key type + * @param <O> Output type + */ +public class FlinkCreateHandle<T extends HoodieRecordPayload, I, K, O> + extends HoodieCreateHandle<T, I, K, O> implements MiniBatchHandle { + + private static final Logger LOG = LogManager.getLogger(FlinkCreateHandle.class); + private long lastFileSize = 0L; + + public FlinkCreateHandle(HoodieWriteConfig config, String instantTime, HoodieTable<T, I, K, O> hoodieTable, + String partitionPath, String fileId, TaskContextSupplier taskContextSupplier) { + this(config, instantTime, hoodieTable, partitionPath, fileId, getWriterSchemaIncludingAndExcludingMetadataPair(config), + taskContextSupplier); + } + + public FlinkCreateHandle(HoodieWriteConfig config, String instantTime, HoodieTable<T, I, K, O> hoodieTable, + String partitionPath, String fileId, Pair<Schema, Schema> writerSchemaIncludingAndExcludingMetadataPair, + TaskContextSupplier taskContextSupplier) { + super(config, instantTime, hoodieTable, partitionPath, fileId, writerSchemaIncludingAndExcludingMetadataPair, + taskContextSupplier); + } + + /** + * Called by the compactor code path. + */ + public FlinkCreateHandle(HoodieWriteConfig config, String instantTime, HoodieTable<T, I, K, O> hoodieTable, + String partitionPath, String fileId, Map<String, HoodieRecord<T>> recordMap, + TaskContextSupplier taskContextSupplier) { + super(config, instantTime, hoodieTable, partitionPath, fileId, recordMap, taskContextSupplier); + } + + /** + * Get the incremental write status. In mini-batch write mode, + * this handle would be reused for a checkpoint bucket(the bucket is appended as mini-batches), Review comment: It represents a write bucket within a checkpoint. A `BucketWriter` may hold several bucket write handles. ---------------------------------------------------------------- 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]
