Package org.apache.accumulo.core.volume

Class VolumeImpl

java.lang.Object

org.apache.accumulo.core.volume.VolumeImpl

All Implemented Interfaces:

Volume

public class VolumeImpl
extends Object
implements Volume

Basic Volume implementation that contains a FileSystem and a base path that should be used within that filesystem.

Constructor Summary

Constructors

Constructor	Description
VolumeImpl(org.apache.hadoop.fs.FileSystem fs, String basePath)
VolumeImpl(org.apache.hadoop.fs.Path path, org.apache.hadoop.conf.Configuration hadoopConf)

Method Summary

Modifier and Type	Method	Description
boolean	containsPath(org.apache.hadoop.fs.Path path)	Determine if the Path is contained in Volume.
boolean	equals(Object o)
String	getBasePath()	The base path which Accumulo will use within the given FileSystem
org.apache.hadoop.fs.FileSystem	getFileSystem()	A FileSystem that Accumulo will use
int	hashCode()
org.apache.hadoop.fs.Path	prefixChild(String pathString)	Convert the given child path into a Path that is relative to the base path for this Volume.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

VolumeImpl

public VolumeImpl(org.apache.hadoop.fs.Path path,
                  org.apache.hadoop.conf.Configuration hadoopConf)
           throws IOException

Throws:

IOException

VolumeImpl

public VolumeImpl(org.apache.hadoop.fs.FileSystem fs,
                  String basePath)

Method Detail

getFileSystem

public org.apache.hadoop.fs.FileSystem getFileSystem()

Description copied from interface: Volume

A FileSystem that Accumulo will use

Specified by:

getFileSystem in interface Volume

getBasePath

public String getBasePath()

Description copied from interface: Volume

The base path which Accumulo will use within the given FileSystem

Specified by:

getBasePath in interface Volume

containsPath

public boolean containsPath(org.apache.hadoop.fs.Path path)

Description copied from interface: Volume

Determine if the Path is contained in Volume. A Path is considered contained if refers to a location within the base path for this Volume on the same FileSystem. It can be located at the base path, or within any sub-directory. Unqualified paths (those without a file system scheme) will resolve to using the configured Hadoop default file system before comparison. Paths are not considered "contained" within this Volume if they have any relative path "breakout" patterns, such as ../.

Specified by:

containsPath in interface Volume

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

prefixChild

public org.apache.hadoop.fs.Path prefixChild(String pathString)

Description copied from interface: Volume

Convert the given child path into a Path that is relative to the base path for this Volume. The supplied path should not include any scheme (such as file: or hdfs:), and should not contain any relative path "breakout" patterns, such as ../. If the path begins with a single slash, it will be preserved while prefixing this volume. If it does not begin with a single slash, one will be inserted.

Specified by:

prefixChild in interface Volume

Parameters:

pathString - The suffix to use

Returns:

A Path for this Volume with the provided suffix