Package org.apache.drill.exec.store.dfs

Class BasicFormatMatcher

java.lang.Object

org.apache.drill.exec.store.dfs.FormatMatcher

org.apache.drill.exec.store.dfs.BasicFormatMatcher

public class BasicFormatMatcher
extends FormatMatcher

Field Summary

Fields

Modifier and Type	Field	Description
protected final FormatPlugin	plugin

Fields inherited from class org.apache.drill.exec.store.dfs.FormatMatcher

HIGH_PRIORITY, MEDIUM_PRIORITY

Constructor Summary

Constructors

Constructor	Description
BasicFormatMatcher(FormatPlugin plugin, List<Pattern> patterns, List<MagicString> magicStrings)
BasicFormatMatcher(FormatPlugin plugin, org.apache.hadoop.conf.Configuration fsConf, List<String> extensions, boolean compressible)

Method Summary

Modifier and Type	Method	Description
FormatPlugin	getFormatPlugin()
boolean	isFileReadable(DrillFileSystem fs, org.apache.hadoop.fs.FileStatus status)	Function returns true if the file extension matches the pattern.
DrillTable	isReadable(DrillFileSystem fs, FileSelection selection, FileSystemPlugin fsPlugin, String storageEngineName, SchemaConfig schemaConfig)
boolean	supportDirectoryReads()

Methods inherited from class org.apache.drill.exec.store.dfs.FormatMatcher

getFormatLocationTransformer, priority

Methods inherited from class java.lang.Object

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

Field Details

plugin

protected final FormatPlugin plugin

Constructor Details

BasicFormatMatcher

public BasicFormatMatcher(FormatPlugin plugin,
 List<Pattern> patterns,
 List<MagicString> magicStrings)

BasicFormatMatcher

public BasicFormatMatcher(FormatPlugin plugin,
 org.apache.hadoop.conf.Configuration fsConf,
 List<String> extensions,
 boolean compressible)

Method Details

supportDirectoryReads

public boolean supportDirectoryReads()

Specified by:

supportDirectoryReads in class FormatMatcher

isReadable

public DrillTable isReadable(DrillFileSystem fs,
 FileSelection selection,
 FileSystemPlugin fsPlugin,
 String storageEngineName,
 SchemaConfig schemaConfig)
                      throws IOException

Specified by:

isReadable in class FormatMatcher

Throws:

IOException

isFileReadable

public boolean isFileReadable(DrillFileSystem fs,
 org.apache.hadoop.fs.FileStatus status)
                       throws IOException

Function returns true if the file extension matches the pattern.

Specified by:

isFileReadable in class FormatMatcher

Parameters:

fs - file system

status - file status

Returns:

true if file is readable, false otherwise

Throws:

IOException

getFormatPlugin

public FormatPlugin getFormatPlugin()

Specified by:

getFormatPlugin in class FormatMatcher