Package org.apache.drill.exec.store.image

Class ImageFormatPlugin

java.lang.Object

org.apache.drill.exec.store.dfs.easy.EasyFormatPlugin<ImageFormatConfig>

org.apache.drill.exec.store.image.ImageFormatPlugin

All Implemented Interfaces:

FormatPlugin

public class ImageFormatPlugin
extends EasyFormatPlugin<ImageFormatConfig>

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.drill.exec.store.dfs.easy.EasyFormatPlugin

EasyFormatPlugin.EasyFormatConfig, EasyFormatPlugin.EasyFormatConfigBuilder, EasyFormatPlugin.ScanFrameworkVersion

Field Summary

Fields inherited from class org.apache.drill.exec.store.dfs.easy.EasyFormatPlugin

formatConfig

Constructor Summary

Constructors

Constructor	Description
ImageFormatPlugin(String name, DrillbitContext context, org.apache.hadoop.conf.Configuration fsConf, StoragePluginConfig storageConfig, ImageFormatConfig formatConfig)

Method Summary

Modifier and Type	Method	Description
protected FileScanFramework.FileScanBuilder	frameworkBuilder(EasySubScan scan, OptionSet options)	Create the plugin-specific framework that manages the scan.
ManagedReader<? extends FileScanFramework.FileSchemaNegotiator>	newBatchReader(EasySubScan scan, OptionSet options)	For EVF V1, to be removed.

Methods inherited from class org.apache.drill.exec.store.dfs.easy.EasyFormatPlugin

configureScan, easyConfig, getConfig, getContext, getFsConf, getGroupScan, getGroupScan, getMatcher, getName, getOptimizerRules, getReaderBatch, getReaderOperatorType, getRecordReader, getRecordWriter, getScanStats, getStatisticsRecordWriter, getStorageConfig, getWriter, getWriterBatch, getWriterOperatorType, initScanBuilder, isBlockSplittable, isCompressible, isStatisticsRecordWriter, readStatistics, scanVersion, supportsAutoPartitioning, supportsFileImplicitColumns, supportsLimitPushdown, supportsPushDown, supportsRead, supportsStatistics, supportsWrite, writeStatistics

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.drill.exec.store.dfs.FormatPlugin

getGroupScan, getGroupScan, getOptimizerRules

Constructor Details

ImageFormatPlugin

public ImageFormatPlugin(String name,
 DrillbitContext context,
 org.apache.hadoop.conf.Configuration fsConf,
 StoragePluginConfig storageConfig,
 ImageFormatConfig formatConfig)

Method Details

newBatchReader

public ManagedReader<? extends FileScanFramework.FileSchemaNegotiator> newBatchReader(EasySubScan scan,
 OptionSet options)
                                                                               throws ExecutionSetupException

Description copied from class: EasyFormatPlugin

For EVF V1, to be removed.

Overrides:

newBatchReader in class EasyFormatPlugin<ImageFormatConfig>

Throws:

ExecutionSetupException

frameworkBuilder

protected FileScanFramework.FileScanBuilder frameworkBuilder(EasySubScan scan,
 OptionSet options)
                                                      throws ExecutionSetupException

Description copied from class: EasyFormatPlugin

Create the plugin-specific framework that manages the scan. The framework creates batch readers one by one for each file or block. It defines semantic rules for projection. It handles "early" or "late" schema readers. A typical framework builds on standardized frameworks for files in general or text files in particular.

For EVF V1, to be removed.

Overrides:

frameworkBuilder in class EasyFormatPlugin<ImageFormatConfig>

Parameters:

scan - the physical operation definition for the scan operation. Contains one or more files to read. (The Easy format plugin works only for files.)

Returns:

the scan framework which orchestrates the scan operation across potentially many files

Throws:

ExecutionSetupException - for all setup failures