Package io.trino.plugin.hive.s3select

Class S3SelectLineRecordReader

java.lang.Object

io.trino.plugin.hive.s3select.S3SelectLineRecordReader

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text>

@ThreadSafe
public abstract class S3SelectLineRecordReader
extends Object
implements org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text>

Field Summary

Fields

Modifier and Type	Field	Description
protected org.apache.hadoop.io.compress.CompressionCodecFactory	compressionCodecFactory
protected String	lineDelimiter

Method Summary

Modifier and Type	Method	Description
abstract com.amazonaws.services.s3.model.SelectObjectContentRequest	buildSelectObjectRequest(Properties schema, String query, org.apache.hadoop.fs.Path path)
void	close()
org.apache.hadoop.io.LongWritable	createKey()
org.apache.hadoop.io.Text	createValue()
protected com.amazonaws.services.s3.model.CompressionType	getCompressionType(org.apache.hadoop.fs.Path path)
long	getPos()
float	getProgress()
boolean	next(org.apache.hadoop.io.LongWritable key, org.apache.hadoop.io.Text value)

Methods inherited from class java.lang.Object

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

Field Detail

compressionCodecFactory

protected final org.apache.hadoop.io.compress.CompressionCodecFactory compressionCodecFactory

lineDelimiter

protected final String lineDelimiter

Method Detail

buildSelectObjectRequest

public abstract com.amazonaws.services.s3.model.SelectObjectContentRequest buildSelectObjectRequest(Properties schema,
                                                                                                    String query,
                                                                                                    org.apache.hadoop.fs.Path path)

getCompressionType

protected com.amazonaws.services.s3.model.CompressionType getCompressionType(org.apache.hadoop.fs.Path path)

next

public boolean next(org.apache.hadoop.io.LongWritable key,
                    org.apache.hadoop.io.Text value)
             throws IOException

Specified by:

next in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text>

Throws:

IOException

createKey

public org.apache.hadoop.io.LongWritable createKey()

Specified by:

createKey in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text>

createValue

public org.apache.hadoop.io.Text createValue()

Specified by:

createValue in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text>

getPos

public long getPos()

Specified by:

getPos in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text>

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text>

Throws:

IOException

getProgress

public float getProgress()

Specified by:

getProgress in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text>