org.apache.hadoop.hive.druid.io

Class DruidQueryBasedInputFormat

java.lang.Object

org.apache.hadoop.mapreduce.InputFormat<org.apache.hadoop.io.NullWritable,DruidWritable>

org.apache.hadoop.hive.druid.io.DruidQueryBasedInputFormat

All Implemented Interfaces:

org.apache.hadoop.mapred.InputFormat<org.apache.hadoop.io.NullWritable,DruidWritable>

public class DruidQueryBasedInputFormat
extends org.apache.hadoop.mapreduce.InputFormat<org.apache.hadoop.io.NullWritable,DruidWritable>
implements org.apache.hadoop.mapred.InputFormat<org.apache.hadoop.io.NullWritable,DruidWritable>

Druid query based input format. Given a query and the Druid broker address, it will send it, and retrieve and parse the results.

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.slf4j.Logger	LOG

Constructor Summary

Constructors

Constructor and Description
DruidQueryBasedInputFormat()

Method Summary

Modifier and Type	Method and Description
org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.NullWritable,DruidWritable>	createRecordReader(org.apache.hadoop.mapreduce.InputSplit split, org.apache.hadoop.mapreduce.TaskAttemptContext context)
org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.NullWritable,DruidWritable>	getRecordReader(org.apache.hadoop.mapred.InputSplit split, org.apache.hadoop.mapred.JobConf job, org.apache.hadoop.mapred.Reporter reporter)
org.apache.hadoop.mapred.InputSplit[]	getSplits(org.apache.hadoop.mapred.JobConf job, int numSplits)
List<org.apache.hadoop.mapreduce.InputSplit>	getSplits(org.apache.hadoop.mapreduce.JobContext context)

Methods inherited from class java.lang.Object

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

Field Detail

LOG

protected static final org.slf4j.Logger LOG

Constructor Detail

DruidQueryBasedInputFormat

public DruidQueryBasedInputFormat()

Method Detail

getSplits

public org.apache.hadoop.mapred.InputSplit[] getSplits(org.apache.hadoop.mapred.JobConf job,
                                                       int numSplits)
                                                throws IOException

Specified by:

getSplits in interface org.apache.hadoop.mapred.InputFormat<org.apache.hadoop.io.NullWritable,DruidWritable>

Throws:

IOException

getSplits

public List<org.apache.hadoop.mapreduce.InputSplit> getSplits(org.apache.hadoop.mapreduce.JobContext context)
                                                       throws IOException,
                                                              InterruptedException

Specified by:

getSplits in class org.apache.hadoop.mapreduce.InputFormat<org.apache.hadoop.io.NullWritable,DruidWritable>

Throws:

IOException

InterruptedException

getRecordReader

public org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.NullWritable,DruidWritable> 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,DruidWritable>

Throws:

IOException

createRecordReader

public org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.NullWritable,DruidWritable> createRecordReader(org.apache.hadoop.mapreduce.InputSplit split,
                                                                                                                    org.apache.hadoop.mapreduce.TaskAttemptContext context)
                                                                                                             throws IOException,
                                                                                                                    InterruptedException

Specified by:

createRecordReader in class org.apache.hadoop.mapreduce.InputFormat<org.apache.hadoop.io.NullWritable,DruidWritable>

Throws:

IOException

InterruptedException