org.apache.hadoop.fs.local

Class RawLocalFs

java.lang.Object

org.apache.hadoop.fs.AbstractFileSystem

org.apache.hadoop.fs.DelegateToFileSystem

org.apache.hadoop.fs.local.RawLocalFs

@InterfaceAudience.Private
@InterfaceStability.Evolving
public class RawLocalFs
extends DelegateToFileSystem

The RawLocalFs implementation of AbstractFileSystem. This impl delegates to the old FileSystem

Field Summary

Fields inherited from class org.apache.hadoop.fs.DelegateToFileSystem

fsImpl

Fields inherited from class org.apache.hadoop.fs.AbstractFileSystem

statistics

Method Summary

Methods

Modifier and Type	Method and Description
void	createSymlink(Path target, Path link, boolean createParent) The specification of this method matches that of FileContext.createSymlink(Path, Path, boolean);
FileStatus	getFileLinkStatus(Path f) Return a FileStatus representing the given path.
Path	getLinkTarget(Path f) Partially resolves the path.
FsServerDefaults	getServerDefaults() Return a set of server default configuration values.
int	getUriDefaultPort() The default port of this file system.
boolean	isValidName(String src) Returns true if the specified string is considered valid in the path part of a URI by this file system.
boolean	supportsSymlinks() Returns true if the file system supports symlinks, false otherwise.

Methods inherited from class org.apache.hadoop.fs.DelegateToFileSystem

createInternal, delete, getCanonicalServiceName, getDelegationTokens, getFileBlockLocations, getFileChecksum, getFileStatus, getFsStatus, getHomeDirectory, getInitialWorkingDirectory, listStatus, mkdir, open, renameInternal, setOwner, setPermission, setReplication, setTimes, setVerifyChecksum

Methods inherited from class org.apache.hadoop.fs.AbstractFileSystem

checkPath, checkScheme, clearStatistics, create, createFileSystem, equals, get, getAllStatistics, getFsStatus, getStatistics, getStatistics, getUri, getUriPath, hashCode, listCorruptFileBlocks, listLocatedStatus, listStatusIterator, makeQualified, open, printStatistics, rename, renameInternal, resolvePath

Methods inherited from class java.lang.Object

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

Method Detail

getUriDefaultPort

public int getUriDefaultPort()

Description copied from class: AbstractFileSystem

The default port of this file system.

Overrides:

getUriDefaultPort in class DelegateToFileSystem

Returns:

default port of this file system's Uri scheme A uri with a port of -1 => default port;

getServerDefaults

public FsServerDefaults getServerDefaults()
                                   throws IOException

Description copied from class: AbstractFileSystem

Return a set of server default configuration values.

Overrides:

getServerDefaults in class DelegateToFileSystem

Returns:

server default configuration values

Throws:

IOException - an I/O error occurred

supportsSymlinks

public boolean supportsSymlinks()

Description copied from class: AbstractFileSystem

Returns true if the file system supports symlinks, false otherwise.

Overrides:

supportsSymlinks in class DelegateToFileSystem

Returns:

true if filesystem supports symlinks

createSymlink

public void createSymlink(Path target,
                 Path link,
                 boolean createParent)
                   throws IOException

Description copied from class: AbstractFileSystem

The specification of this method matches that of FileContext.createSymlink(Path, Path, boolean);

Overrides:

createSymlink in class DelegateToFileSystem

Throws:

IOException

getFileLinkStatus

public FileStatus getFileLinkStatus(Path f)
                             throws IOException

Return a FileStatus representing the given path. If the path refers to a symlink return a FileStatus representing the link rather than the object the link refers to.

Overrides:

getFileLinkStatus in class DelegateToFileSystem

Throws:

IOException

isValidName

public boolean isValidName(String src)

Description copied from class: AbstractFileSystem

Returns true if the specified string is considered valid in the path part of a URI by this file system. The default implementation enforces the rules of HDFS, but subclasses may override this method to implement specific validation rules for specific file systems.

Overrides:

isValidName in class AbstractFileSystem

Parameters:

src - String source filename to check, path part of the URI

Returns:

boolean true if the specified string is considered valid

getLinkTarget

public Path getLinkTarget(Path f)
                   throws IOException

Description copied from class: AbstractFileSystem

Partially resolves the path. This is used during symlink resolution in FSLinkResolver, and differs from the similarly named method FileContext.getLinkTarget(Path).

Overrides:

getLinkTarget in class DelegateToFileSystem

Throws:

IOException