com.pervasive.datarush.io

Class HadoopFilePath

java.lang.Object

com.pervasive.datarush.io.HadoopFilePath

All Implemented Interfaces:

Path, Serializable

public class HadoopFilePath
extends Object
implements Path

Implementation of a path for the Hadoop Distributed File System (HDFS).

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
HadoopFilePath(String path)

Method Summary

Modifier and Type	Method and Description
static HadoopFilePath	cast(Path p)
boolean	equals(Object o)
HadoopFileSystemProvider	getFileSystemProvider() Gets the file system provider for this path.
String	getName() Gets the last element of the path.
Path	getParent() Gets the path referring to the location containing the path.
String	getPath() Get the HDFS specific path object for this path.
int	hashCode()
boolean	isAbsolute() Indicates whether the path is absolute or relative.
Path	resolve(String other) Adds additional elements to the path.
Path	toAbsolutePath() Converts a relative path into an absolute path.
File	toFile() Gets the local file corresponding to the path.
String	toString() Gets the string representation of the path.
String	toURL() Returns the URL string corresponding to this path.

Methods inherited from class java.lang.Object

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

Constructor Detail

HadoopFilePath

public HadoopFilePath(String path)

Method Detail

cast

public static HadoopFilePath cast(Path p)

getFileSystemProvider

public HadoopFileSystemProvider getFileSystemProvider()

Description copied from interface: Path

Gets the file system provider for this path.

Specified by:

getFileSystemProvider in interface Path

Returns:

the file system provider associated with the path

isAbsolute

public boolean isAbsolute()

Description copied from interface: Path

Indicates whether the path is absolute or relative. That is, does the path start from the root of the associated file system.

For most file systems, all paths are absolute.

Specified by:

isAbsolute in interface Path

Returns:

true if the path starts from the file system root, false otherwise.

toAbsolutePath

public Path toAbsolutePath()

Description copied from interface: Path

Converts a relative path into an absolute path.

Specified by:

toAbsolutePath in interface Path

Returns:

the absolute path pointing to the same location. If the path is already absolute, it is returned.

getParent

public Path getParent()

Description copied from interface: Path

Gets the path referring to the location containing the path.

Specified by:

getParent in interface Path

Returns:

the path to the container of this path, null if this path is the root.

getName

public String getName()

Description copied from interface: Path

Gets the last element of the path.

Specified by:

getName in interface Path

Returns:

the last element of the path.

resolve

public Path resolve(String other)

Description copied from interface: Path

Adds additional elements to the path. The provided string is interpreted as a relative path starting from the path's location.

Specified by:

resolve in interface Path

Parameters:

other - the

Returns:

the resulting path

toFile

public File toFile()

Description copied from interface: Path

Gets the local file corresponding to the path. This only makes sense when the path refers to the local file system. For other paths, it always returns null.

Specified by:

toFile in interface Path

Returns:

the file which this path identifies or null if it does not identify a file on the local file system.

toString

public String toString()

Description copied from interface: Path

Gets the string representation of the path. It must be true that Paths.asPath(path.toString()) refers to the same location as path. However, it may not the case that pathString.equals(Paths.asPath(pathString).toString()).

Specified by:

toString in interface Path

Overrides:

toString in class Object

Returns:

the string representation of the path

toURL

public String toURL()

Description copied from interface: Path

Returns the URL string corresponding to this path.

Specified by:

toURL in interface Path

Returns:

The URL string for this path, or null if this path cannot be mapped to a URL.

equals

public boolean equals(Object o)

Specified by:

equals in interface Path

Overrides:

equals in class Object

hashCode

public int hashCode()

Specified by:

hashCode in interface Path

Overrides:

hashCode in class Object

getPath

public String getPath()

Get the HDFS specific path object for this path.

Returns:

HDFS path