ambition119 commented on a change in pull request #657: [HUDI-57] support orc file URL: https://github.com/apache/incubator-hudi/pull/657#discussion_r281007136
########## File path: hoodie-client/src/main/java/com/uber/hoodie/io/storage/HoodieOrcWriter.java ########## @@ -0,0 +1,192 @@ +/* + * Copyright (c) 2016 Uber Technologies, Inc. (hoodie-dev-gr...@uber.com) + * + * Licensed 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 com.uber.hoodie.io.storage; + +import com.uber.hoodie.avro.HoodieAvroWriteSupport; +import com.uber.hoodie.common.model.HoodieRecord; +import com.uber.hoodie.common.model.HoodieRecordPayload; +import com.uber.hoodie.common.util.FSUtils; +import com.uber.hoodie.common.util.HoodieAvroUtils; +import java.io.IOException; +import java.util.List; +import java.util.concurrent.atomic.AtomicLong; +import org.apache.avro.Schema; +import org.apache.avro.generic.GenericRecord; +import org.apache.avro.generic.IndexedRecord; +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.fs.Path; +import org.apache.hadoop.hive.ql.exec.vector.BytesColumnVector; +import org.apache.hadoop.hive.ql.exec.vector.DoubleColumnVector; +import org.apache.hadoop.hive.ql.exec.vector.LongColumnVector; +import org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch; +import org.apache.orc.CompressionKind; +import org.apache.orc.OrcFile; +import org.apache.orc.TypeDescription; +import org.apache.orc.Writer; +import org.apache.spark.TaskContext; + +/** + * HoodieOrcWriter use hive's Writer to help limit the size of underlying file. Provides + * a way to check if the current file can take more records with the <code>canWrite()</code> + */ +public class HoodieOrcWriter<T extends HoodieRecordPayload, R extends IndexedRecord> + implements HoodieStorageWriter<R> { + + private static AtomicLong recordIndex = new AtomicLong(1); + + private final Path file; + private final HoodieWrapperFileSystem fs; + private final long stripeSize; + private final HoodieAvroWriteSupport writeSupport; + private final String commitTime; + private final Writer writer; + private final TypeDescription orcSchema; + private final List<String> orcFieldNames; + private final VectorizedRowBatch orcBatch; + + public HoodieOrcWriter(String commitTime, Path file, HoodieOrcConfig orcConfig, + TypeDescription orcSchema) throws IOException { + this.file = HoodieWrapperFileSystem.convertToHoodiePath(file, orcConfig.getHadoopConf()); + this.fs = (HoodieWrapperFileSystem) this.file.getFileSystem(registerFileSystem(file, orcConfig.getHadoopConf())); + this.writeSupport = orcConfig.getWriteSupport(); + this.commitTime = commitTime; + this.stripeSize = orcConfig.getStripeSize(); + + this.orcSchema = orcSchema; + // hoodie meta field + this.orcSchema.addField("_hoodie_commit_time", TypeDescription.createString()) + .addField("_hoodie_commit_seqno", TypeDescription.createString()) + .addField("_hoodie_record_key", TypeDescription.createString()) + .addField("_hoodie_partition_path", TypeDescription.createString()) + .addField("_hoodie_file_name", TypeDescription.createString()); + + this.writer = OrcFile.createWriter( + file, + OrcFile.writerOptions(orcConfig.getHadoopConf()) + .setSchema(this.orcSchema) + .stripeSize(orcConfig.getStripeSize()) + .bufferSize(orcConfig.getBufferSize()) + .blockSize(orcConfig.getBlockSize()) + .compress(CompressionKind.ZLIB) + .version(org.apache.orc.OrcFile.Version.V_0_12)); + + orcFieldNames = this.orcSchema.getFieldNames(); + orcBatch = this.orcSchema.createRowBatch(); + } + + public static Configuration registerFileSystem(Path file, Configuration conf) { + Configuration returnConf = new Configuration(conf); + String scheme = FSUtils.getFs(file.toString(), conf).getScheme(); + returnConf.set("fs." + HoodieWrapperFileSystem.getHoodieScheme(scheme) + ".impl", + HoodieWrapperFileSystem.class.getName()); + + return returnConf; + } + + @Override + public void writeAvroWithMetadata(R avroRecord, HoodieRecord record) throws IOException { + GenericRecord genericRecord = (GenericRecord) avroRecord; + String seqId = HoodieRecord.generateSequenceId(commitTime, TaskContext.getPartitionId(), + recordIndex.getAndIncrement()); + + HoodieAvroUtils.addHoodieKeyToRecord(genericRecord, record.getRecordKey(), + record.getPartitionPath(), file.getName()); + + GenericRecord metadataToRecord = HoodieAvroUtils + .addCommitMetadataToRecord(genericRecord, commitTime, seqId); + + Schema avroSchema = metadataToRecord.getSchema(); + + int row = orcBatch.size++; + setOrcFiledValue((R) avroRecord, avroSchema, row); + + if (orcBatch.size != 0) { + writer.addRowBatch(orcBatch); + orcBatch.reset(); + } + writeSupport.add(record.getRecordKey()); + } + + @Override + public boolean canWrite() { + return fs.getBytesWritten(file) < stripeSize; + } + + @Override + public void writeAvro(String key, R avroRecord) throws IOException { + Schema avroSchema = avroRecord.getSchema(); + + int row = orcBatch.size++; + setOrcFiledValue((R) avroRecord, avroSchema, row); + + if (orcBatch.size != 0) { + writer.addRowBatch(orcBatch); + orcBatch.reset(); + } + + writeSupport.add(key); + } + + @Override + public void close() throws IOException { + if (null != this.writer) { + this.writer.close(); + } + } + + private void setOrcFiledValue(R avroRecord, Schema avroSchema, int row) throws IOException { Review comment: thanks ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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