org.apache.hadoop.hbase.mapreduce

Class TsvImporterMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,ImmutableBytesWritable,Put>

org.apache.hadoop.hbase.mapreduce.TsvImporterMapper

@InterfaceAudience.Public
@InterfaceStability.Stable
public class TsvImporterMapper
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,ImmutableBytesWritable,Put>

Write table content out to files in hdfs.

Field Summary

Fields

Modifier and Type	Field and Description
protected String	cellVisibilityExpr
protected org.apache.hadoop.conf.Configuration	conf
protected CellCreator	kvCreator
protected org.apache.hadoop.hbase.mapreduce.ImportTsv.TsvParser	parser
protected long	ts Timestamp for all inserted rows

Constructor Summary

Constructors

Constructor and Description
TsvImporterMapper()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	doSetup(org.apache.hadoop.mapreduce.Mapper.Context context) Handles common parameter initialization that a subclass might want to leverage.
org.apache.hadoop.mapreduce.Counter	getBadLineCount()
boolean	getSkipBadLines()
long	getTs()
void	incrementBadLineCount(int count)
void	map(org.apache.hadoop.io.LongWritable offset, org.apache.hadoop.io.Text value, org.apache.hadoop.mapreduce.Mapper.Context context) Convert a line of TSV text into an HBase table row.
protected void	populatePut(byte[] lineBytes, org.apache.hadoop.hbase.mapreduce.ImportTsv.TsvParser.ParsedLine parsed, Put put, int i)
protected void	setup(org.apache.hadoop.mapreduce.Mapper.Context context) Handles initializing this class with objects specific to it (i.e., the parser).

Methods inherited from class org.apache.hadoop.mapreduce.Mapper

cleanup, run

Methods inherited from class java.lang.Object

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

Field Detail

ts

protected long ts

Timestamp for all inserted rows

parser

protected org.apache.hadoop.hbase.mapreduce.ImportTsv.TsvParser parser

conf

protected org.apache.hadoop.conf.Configuration conf

cellVisibilityExpr

protected String cellVisibilityExpr

kvCreator

protected CellCreator kvCreator

Constructor Detail

TsvImporterMapper

public TsvImporterMapper()

Method Detail

getTs

public long getTs()

getSkipBadLines

public boolean getSkipBadLines()

getBadLineCount

public org.apache.hadoop.mapreduce.Counter getBadLineCount()

incrementBadLineCount

public void incrementBadLineCount(int count)

setup

protected void setup(org.apache.hadoop.mapreduce.Mapper.Context context)

Handles initializing this class with objects specific to it (i.e., the parser). Common initialization that might be leveraged by a subsclass is done in doSetup. Hence a subclass may choose to override this method and call doSetup as well before handling it's own custom params.

Overrides:

setup in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,ImmutableBytesWritable,Put>

Parameters:

context -

doSetup

protected void doSetup(org.apache.hadoop.mapreduce.Mapper.Context context)

Handles common parameter initialization that a subclass might want to leverage.

Parameters:

context -

map

public void map(org.apache.hadoop.io.LongWritable offset,
       org.apache.hadoop.io.Text value,
       org.apache.hadoop.mapreduce.Mapper.Context context)
         throws IOException

Convert a line of TSV text into an HBase table row.

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,ImmutableBytesWritable,Put>

Throws:

IOException

populatePut

protected void populatePut(byte[] lineBytes,
               org.apache.hadoop.hbase.mapreduce.ImportTsv.TsvParser.ParsedLine parsed,
               Put put,
               int i)
                    throws org.apache.hadoop.hbase.mapreduce.ImportTsv.TsvParser.BadTsvLineException,
                           IOException

Throws:

org.apache.hadoop.hbase.mapreduce.ImportTsv.TsvParser.BadTsvLineException

IOException