com.mapr.db.mapreduce.tools

Class ImportJSON.JsonTextImporter

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.ojai.Document,ByteBufWritableComparable,org.ojai.Document>

com.mapr.db.mapreduce.tools.ImportJSON.JsonTextImporter

Enclosing class:

ImportJSON

public static class ImportJSON.JsonTextImporter
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.ojai.Document,ByteBufWritableComparable,org.ojai.Document>

This class reads JSON data from text files in the Map phase. It also converts the JSON data into Ojai records and writes them to MapR Document-DB a table

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper

org.apache.hadoop.mapreduce.Mapper.Context

Field Summary

Fields

Modifier and Type	Field and Description
static int	counter

Constructor Summary

Constructors

Constructor and Description
ImportJSON.JsonTextImporter()

Method Summary

Methods

Modifier and Type	Method and Description
void	map(org.apache.hadoop.io.LongWritable key, org.ojai.Document record, org.apache.hadoop.mapreduce.Mapper.Context context)

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

cleanup, run, setup

Methods inherited from class java.lang.Object

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

Field Detail

counter

public static int counter

Constructor Detail

ImportJSON.JsonTextImporter

public ImportJSON.JsonTextImporter()

Method Detail

map

public void map(org.apache.hadoop.io.LongWritable key,
       org.ojai.Document record,
       org.apache.hadoop.mapreduce.Mapper.Context context)
         throws IOException,
                InterruptedException

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.ojai.Document,ByteBufWritableComparable,org.ojai.Document>

Throws:

IOException

InterruptedException