org.apache.hudi.io.storage.HoodieFileReaderFactory Maven / Gradle / Ivy
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* distributed with this work for additional information
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* 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,
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*/
package org.apache.hudi.io.storage;
import org.apache.hudi.common.fs.FSUtils;
import org.apache.hudi.common.model.HoodieFileFormat;
import org.apache.hudi.common.model.HoodieRecord;
import org.apache.hudi.common.util.Option;
import org.apache.hudi.common.util.ReflectionUtils;
import org.apache.hudi.exception.HoodieException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import java.io.IOException;
import static org.apache.hudi.common.model.HoodieFileFormat.HFILE;
import static org.apache.hudi.common.model.HoodieFileFormat.ORC;
import static org.apache.hudi.common.model.HoodieFileFormat.PARQUET;
/**
* Factory methods to create Hudi file reader.
*/
public class HoodieFileReaderFactory {
public static HoodieFileReaderFactory getReaderFactory(HoodieRecord.HoodieRecordType recordType) {
switch (recordType) {
case AVRO:
return new HoodieAvroFileReaderFactory();
case SPARK:
try {
Class clazz = ReflectionUtils.getClass("org.apache.hudi.io.storage.HoodieSparkFileReaderFactory");
return (HoodieFileReaderFactory) clazz.newInstance();
} catch (IllegalArgumentException | IllegalAccessException | InstantiationException e) {
throw new HoodieException("Unable to create hoodie spark file writer factory", e);
}
default:
throw new UnsupportedOperationException(recordType + " record type not supported yet.");
}
}
public HoodieFileReader getFileReader(Configuration conf, Path path) throws IOException {
final String extension = FSUtils.getFileExtension(path.toString());
if (PARQUET.getFileExtension().equals(extension)) {
return newParquetFileReader(conf, path);
}
if (HFILE.getFileExtension().equals(extension)) {
return newHFileFileReader(conf, path);
}
if (ORC.getFileExtension().equals(extension)) {
return newOrcFileReader(conf, path);
}
throw new UnsupportedOperationException(extension + " format not supported yet.");
}
public HoodieFileReader getFileReader(Configuration conf, Path path, HoodieFileFormat format) throws IOException {
return this.newParquetFileReader(conf, path);
}
protected HoodieFileReader newParquetFileReader(Configuration conf, Path path) {
throw new UnsupportedOperationException();
}
protected HoodieFileReader newHFileFileReader(Configuration conf, Path path) throws IOException {
throw new UnsupportedOperationException();
}
protected HoodieFileReader newOrcFileReader(Configuration conf, Path path) {
throw new UnsupportedOperationException();
}
public HoodieFileReader newBootstrapFileReader(HoodieFileReader skeletonFileReader, HoodieFileReader dataFileReader, Option partitionFields, Object[] partitionValues) {
throw new UnsupportedOperationException();
}
}