org.apache.hadoop.hive.ql.io.parquet

Class MapredParquetInputFormat

java.lang.Object

org.apache.hadoop.mapred.FileInputFormat<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.ArrayWritable>

org.apache.hadoop.hive.ql.io.parquet.MapredParquetInputFormat

All Implemented Interfaces:

VectorizedInputFormatInterface, InputFormatChecker, LlapCacheOnlyInputFormatInterface, org.apache.hadoop.mapred.InputFormat<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.ArrayWritable>

public class MapredParquetInputFormat
extends org.apache.hadoop.mapred.FileInputFormat<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.ArrayWritable>
implements InputFormatChecker, VectorizedInputFormatInterface, LlapCacheOnlyInputFormatInterface

A Parquet InputFormat for Hive (with the deprecated package mapred) NOTE: With HIVE-9235 we removed "implements VectorizedParquetInputFormat" since all data types are not currently supported. Removing the interface turns off vectorization.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapred.FileInputFormat

org.apache.hadoop.mapred.FileInputFormat.Counter

Field Summary

Fields inherited from class org.apache.hadoop.mapred.FileInputFormat

INPUT_DIR_RECURSIVE, NUM_INPUT_FILES

Constructor Summary

Constructors

Modifier	Constructor and Description
	MapredParquetInputFormat()
protected	MapredParquetInputFormat(org.apache.parquet.hadoop.ParquetInputFormat<org.apache.hadoop.io.ArrayWritable> inputFormat)

Method Summary

Modifier and Type	Method and Description
org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.ArrayWritable>	getRecordReader(org.apache.hadoop.mapred.InputSplit split, org.apache.hadoop.mapred.JobConf job, org.apache.hadoop.mapred.Reporter reporter)
VectorizedSupport.Support[]	getSupportedFeatures()
void	injectCaches(org.apache.hadoop.hive.common.io.FileMetadataCache metadataCache, org.apache.hadoop.hive.common.io.DataCache dataCache, org.apache.hadoop.conf.Configuration cacheConf)
boolean	validateInput(org.apache.hadoop.fs.FileSystem fs, HiveConf conf, List<org.apache.hadoop.fs.FileStatus> files) This method is used to validate the input files.

Methods inherited from class org.apache.hadoop.mapred.FileInputFormat

addInputPath, addInputPathRecursively, addInputPaths, computeSplitSize, getBlockIndex, getInputPathFilter, getInputPaths, getSplitHosts, getSplits, isSplitable, listStatus, makeSplit, makeSplit, setInputPathFilter, setInputPaths, setInputPaths, setMinSplitSize

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MapredParquetInputFormat

public MapredParquetInputFormat()

MapredParquetInputFormat

protected MapredParquetInputFormat(org.apache.parquet.hadoop.ParquetInputFormat<org.apache.hadoop.io.ArrayWritable> inputFormat)

Method Detail

getRecordReader

public org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.ArrayWritable> getRecordReader(org.apache.hadoop.mapred.InputSplit split,
                                                                                                                                   org.apache.hadoop.mapred.JobConf job,
                                                                                                                                   org.apache.hadoop.mapred.Reporter reporter)
                                                                                                                            throws IOException

Specified by:

getRecordReader in interface org.apache.hadoop.mapred.InputFormat<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.ArrayWritable>

Specified by:

getRecordReader in class org.apache.hadoop.mapred.FileInputFormat<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.ArrayWritable>

Throws:

IOException

injectCaches

public void injectCaches(org.apache.hadoop.hive.common.io.FileMetadataCache metadataCache,
                         org.apache.hadoop.hive.common.io.DataCache dataCache,
                         org.apache.hadoop.conf.Configuration cacheConf)

Specified by:

injectCaches in interface LlapCacheOnlyInputFormatInterface

validateInput

public boolean validateInput(org.apache.hadoop.fs.FileSystem fs,
                             HiveConf conf,
                             List<org.apache.hadoop.fs.FileStatus> files)
                      throws IOException

Description copied from interface: InputFormatChecker

This method is used to validate the input files.

Specified by:

validateInput in interface InputFormatChecker

Throws:

IOException

getSupportedFeatures

public VectorizedSupport.Support[] getSupportedFeatures()

Specified by:

getSupportedFeatures in interface VectorizedInputFormatInterface