Package com.google.cloud.hadoop.fs.gcs

Class GoogleHadoopFileSystem

java.lang.Object

org.apache.hadoop.conf.Configured

org.apache.hadoop.fs.FileSystem

com.google.cloud.hadoop.fs.gcs.GoogleHadoopFileSystem

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.hadoop.conf.Configurable, org.apache.hadoop.fs.PathCapabilities, org.apache.hadoop.fs.statistics.IOStatisticsSource, org.apache.hadoop.security.token.DelegationTokenIssuer

public class GoogleHadoopFileSystem
extends org.apache.hadoop.fs.FileSystem
implements org.apache.hadoop.fs.statistics.IOStatisticsSource

GoogleHadoopFileSystem is rooted in a single bucket at initialization time; in this case, Hadoop paths no longer correspond directly to general GCS paths, and all Hadoop operations going through this FileSystem will never touch any GCS bucket other than the bucket on which this FileSystem is rooted.

This implementation sacrifices a small amount of cross-bucket interoperability in favor of more straightforward FileSystem semantics and compatibility with existing Hadoop applications. In particular, it is not subject to bucket-naming constraints, and files are allowed to be placed in root.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	GoogleHadoopFileSystem.GcsFileChecksumType	Available GCS checksum types for use with GoogleHadoopFileSystemConfiguration.GCS_FILE_CHECKSUM_TYPE.
static class	GoogleHadoopFileSystem.GlobAlgorithm	Available GCS glob algorithms for use with GoogleHadoopFileSystemConfiguration.GCS_GLOB_ALGORITHM.

Nested classes/interfaces inherited from class org.apache.hadoop.fs.FileSystem

org.apache.hadoop.fs.FileSystem.DirectoryEntries, org.apache.hadoop.fs.FileSystem.DirListingIterator<T extends org.apache.hadoop.fs.FileStatus>, org.apache.hadoop.fs.FileSystem.Statistics

Field Summary

Fields

Modifier and Type	Field	Description
static String	SCHEME	URI scheme for GoogleHadoopFileSystem

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

DEFAULT_FS, FS_DEFAULT_NAME_KEY, LOG, SHUTDOWN_HOOK_PRIORITY, statistics, TRASH_PREFIX, USER_HOME_PREFIX

Constructor Summary

Constructors

Constructor	Description
GoogleHadoopFileSystem()	Constructs an instance of GoogleHadoopFileSystem; the internal GoogleCloudStorageFileSystem will be set up with config settings when initialize() is called.

Method Summary

Modifier and Type	Method	Description
org.apache.hadoop.fs.FSDataOutputStream	append(org.apache.hadoop.fs.Path hadoopPath, int bufferSize, org.apache.hadoop.util.Progressable progress)	Appends to an existing file (optional operation).
protected void	checkPath(org.apache.hadoop.fs.Path path)
void	close()
void	completeLocalOutput(org.apache.hadoop.fs.Path fsOutputFile, org.apache.hadoop.fs.Path tmpLocalFile)
void	concat(org.apache.hadoop.fs.Path tgt, org.apache.hadoop.fs.Path[] srcs)	Concat existing files into one file.
void	copyFromLocalFile(boolean delSrc, boolean overwrite, org.apache.hadoop.fs.Path[] srcs, org.apache.hadoop.fs.Path dst)
void	copyFromLocalFile(boolean delSrc, boolean overwrite, org.apache.hadoop.fs.Path src, org.apache.hadoop.fs.Path dst)
void	copyToLocalFile(boolean delSrc, org.apache.hadoop.fs.Path src, org.apache.hadoop.fs.Path dst)
org.apache.hadoop.fs.FSDataOutputStream	create(org.apache.hadoop.fs.Path hadoopPath, org.apache.hadoop.fs.permission.FsPermission permission, boolean overwrite, int bufferSize, short replication, long blockSize, org.apache.hadoop.util.Progressable progress)
org.apache.hadoop.fs.FSDataOutputStream	createNonRecursive(org.apache.hadoop.fs.Path hadoopPath, org.apache.hadoop.fs.permission.FsPermission permission, EnumSet<org.apache.hadoop.fs.CreateFlag> flags, int bufferSize, short replication, long blockSize, org.apache.hadoop.util.Progressable progress)
boolean	delete(org.apache.hadoop.fs.Path hadoopPath, boolean recursive)
boolean	deleteOnExit(org.apache.hadoop.fs.Path f)
boolean	exists(org.apache.hadoop.fs.Path f)
String	getCanonicalServiceName()
org.apache.hadoop.fs.ContentSummary	getContentSummary(org.apache.hadoop.fs.Path f)
long	getDefaultBlockSize()
protected int	getDefaultPort()	The default port is listed as -1 as an indication that ports are not used.
short	getDefaultReplication()	Gets the default replication factor.
org.apache.hadoop.security.token.Token<?>	getDelegationToken(String renewer)
org.apache.hadoop.fs.FileChecksum	getFileChecksum(org.apache.hadoop.fs.Path hadoopPath)
org.apache.hadoop.fs.FileStatus	getFileStatus(org.apache.hadoop.fs.Path hadoopPath)
GoogleCloudStorageFileSystem	getGcsFs()	Gets GCS FS instance.
org.apache.hadoop.fs.Path	getHomeDirectory()	Returns home directory of the current user.
GhfsInstrumentation	getInstrumentation()
org.apache.hadoop.fs.statistics.IOStatistics	getIOStatistics()	Get the instrumentation's IOStatistics.
String	getScheme()
GhfsStorageStatistics	getStorageStatistics()	Get the storage statistics of this filesystem.
URI	getUri()	Returns a URI of the root of this FileSystem.
long	getUsed()
org.apache.hadoop.fs.Path	getWorkingDirectory()	Gets the current working directory.
byte[]	getXAttr(org.apache.hadoop.fs.Path path, String name)
Map<String,byte[]>	getXAttrs(org.apache.hadoop.fs.Path path)
Map<String,byte[]>	getXAttrs(org.apache.hadoop.fs.Path path, List<String> names)
org.apache.hadoop.fs.FileStatus[]	globStatus(org.apache.hadoop.fs.Path pathPattern)	Returns an array of FileStatus objects whose path names match pathPattern.
org.apache.hadoop.fs.FileStatus[]	globStatus(org.apache.hadoop.fs.Path pathPattern, org.apache.hadoop.fs.PathFilter filter)
boolean	hasPathCapability(org.apache.hadoop.fs.Path path, String capability)
void	initialize(URI path, org.apache.hadoop.conf.Configuration config)
org.apache.hadoop.fs.RemoteIterator<org.apache.hadoop.fs.LocatedFileStatus>	listLocatedStatus(org.apache.hadoop.fs.Path f)
org.apache.hadoop.fs.FileStatus[]	listStatus(org.apache.hadoop.fs.Path hadoopPath)
List<String>	listXAttrs(org.apache.hadoop.fs.Path path)
org.apache.hadoop.fs.Path	makeQualified(org.apache.hadoop.fs.Path path)	Overridden to make root its own parent.
boolean	mkdirs(org.apache.hadoop.fs.Path hadoopPath, org.apache.hadoop.fs.permission.FsPermission permission)
org.apache.hadoop.fs.FSDataInputStream	open(org.apache.hadoop.fs.Path hadoopPath, int bufferSize)
CompletableFuture<org.apache.hadoop.fs.FSDataInputStream>	openFileWithOptions(org.apache.hadoop.fs.Path hadoopPath, org.apache.hadoop.fs.impl.OpenFileParameters parameters)	Initiate the open operation.
protected void	processDeleteOnExit()
void	removeXAttr(org.apache.hadoop.fs.Path path, String name)
boolean	rename(org.apache.hadoop.fs.Path src, org.apache.hadoop.fs.Path dst)
void	setOwner(org.apache.hadoop.fs.Path p, String username, String groupname)
void	setPermission(org.apache.hadoop.fs.Path p, org.apache.hadoop.fs.permission.FsPermission permission)
void	setTimes(org.apache.hadoop.fs.Path p, long mtime, long atime)
void	setVerifyChecksum(boolean verifyChecksum)
void	setWorkingDirectory(org.apache.hadoop.fs.Path hadoopPath)
void	setXAttr(org.apache.hadoop.fs.Path path, String name, byte[] value, EnumSet<org.apache.hadoop.fs.XAttrSetFlag> flags)
org.apache.hadoop.fs.Path	startLocalOutput(org.apache.hadoop.fs.Path fsOutputFile, org.apache.hadoop.fs.Path tmpLocalFile)

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

access, append, append, append, append, appendFile, areSymlinksEnabled, cancelDeleteOnExit, canonicalizeUri, clearStatistics, closeAll, closeAllForUGI, copyFromLocalFile, copyFromLocalFile, copyToLocalFile, copyToLocalFile, create, create, create, create, create, create, create, create, create, create, create, create, createDataInputStreamBuilder, createDataInputStreamBuilder, createDataOutputStreamBuilder, createFile, createMultipartUploader, createNewFile, createNonRecursive, createNonRecursive, createPathHandle, createSnapshot, createSnapshot, createSymlink, delete, deleteSnapshot, enableSymlinks, fixRelativePart, get, get, get, getAclStatus, getAdditionalTokenIssuers, getAllStatistics, getAllStoragePolicies, getBlockSize, getCanonicalUri, getChildFileSystems, getDefaultBlockSize, getDefaultReplication, getDefaultUri, getFileBlockLocations, getFileBlockLocations, getFileChecksum, getFileLinkStatus, getFileSystemClass, getFSofPath, getGlobalStorageStatistics, getInitialWorkingDirectory, getLength, getLinkTarget, getLocal, getName, getNamed, getPathHandle, getQuotaUsage, getReplication, getServerDefaults, getServerDefaults, getStatistics, getStatistics, getStatus, getStatus, getStoragePolicy, getTrashRoot, getTrashRoots, getUsed, isDirectory, isFile, listCorruptFileBlocks, listFiles, listLocatedStatus, listStatus, listStatus, listStatus, listStatusBatch, listStatusIterator, mkdirs, mkdirs, modifyAclEntries, moveFromLocalFile, moveFromLocalFile, moveToLocalFile, msync, newInstance, newInstance, newInstance, newInstanceLocal, open, open, open, openFile, openFile, openFileWithOptions, primitiveCreate, primitiveMkdir, primitiveMkdir, printStatistics, removeAcl, removeAclEntries, removeDefaultAcl, rename, renameSnapshot, resolveLink, resolvePath, satisfyStoragePolicy, setAcl, setDefaultUri, setDefaultUri, setQuota, setQuotaByStorageType, setReplication, setStoragePolicy, setWriteChecksum, setXAttr, supportsSymlinks, truncate, unsetStoragePolicy

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.security.token.DelegationTokenIssuer

addDelegationTokens

Field Detail

SCHEME

public static final String SCHEME

URI scheme for GoogleHadoopFileSystem

See Also:

Constant Field Values

Constructor Detail

GoogleHadoopFileSystem

public GoogleHadoopFileSystem()

Constructs an instance of GoogleHadoopFileSystem; the internal GoogleCloudStorageFileSystem will be set up with config settings when initialize() is called.

Method Detail

initialize

public void initialize(URI path,
                       org.apache.hadoop.conf.Configuration config)
                throws IOException

Overrides:

initialize in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

checkPath

protected void checkPath(org.apache.hadoop.fs.Path path)

Overrides:

checkPath in class org.apache.hadoop.fs.FileSystem

getScheme

public String getScheme()

Overrides:

getScheme in class org.apache.hadoop.fs.FileSystem

open

public org.apache.hadoop.fs.FSDataInputStream open(org.apache.hadoop.fs.Path hadoopPath,
                                                   int bufferSize)
                                            throws IOException

Specified by:

open in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

create

public org.apache.hadoop.fs.FSDataOutputStream create(org.apache.hadoop.fs.Path hadoopPath,
                                                      org.apache.hadoop.fs.permission.FsPermission permission,
                                                      boolean overwrite,
                                                      int bufferSize,
                                                      short replication,
                                                      long blockSize,
                                                      org.apache.hadoop.util.Progressable progress)
                                               throws IOException

Specified by:

create in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

createNonRecursive

public org.apache.hadoop.fs.FSDataOutputStream createNonRecursive(org.apache.hadoop.fs.Path hadoopPath,
                                                                  org.apache.hadoop.fs.permission.FsPermission permission,
                                                                  EnumSet<org.apache.hadoop.fs.CreateFlag> flags,
                                                                  int bufferSize,
                                                                  short replication,
                                                                  long blockSize,
                                                                  org.apache.hadoop.util.Progressable progress)
                                                           throws IOException

Overrides:

createNonRecursive in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

rename

public boolean rename(org.apache.hadoop.fs.Path src,
                      org.apache.hadoop.fs.Path dst)
               throws IOException

Specified by:

rename in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

delete

public boolean delete(org.apache.hadoop.fs.Path hadoopPath,
                      boolean recursive)
               throws IOException

Specified by:

delete in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

listStatus

public org.apache.hadoop.fs.FileStatus[] listStatus(org.apache.hadoop.fs.Path hadoopPath)
                                             throws IOException

Specified by:

listStatus in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

mkdirs

public boolean mkdirs(org.apache.hadoop.fs.Path hadoopPath,
                      org.apache.hadoop.fs.permission.FsPermission permission)
               throws IOException

Specified by:

mkdirs in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

getFileStatus

public org.apache.hadoop.fs.FileStatus getFileStatus(org.apache.hadoop.fs.Path hadoopPath)
                                              throws IOException

Specified by:

getFileStatus in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

globStatus

public org.apache.hadoop.fs.FileStatus[] globStatus(org.apache.hadoop.fs.Path pathPattern,
                                                    org.apache.hadoop.fs.PathFilter filter)
                                             throws IOException

Overrides:

globStatus in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

getDelegationToken

public org.apache.hadoop.security.token.Token<?> getDelegationToken(String renewer)
                                                             throws IOException

Specified by:

getDelegationToken in interface org.apache.hadoop.security.token.DelegationTokenIssuer

Overrides:

getDelegationToken in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

copyFromLocalFile

public void copyFromLocalFile(boolean delSrc,
                              boolean overwrite,
                              org.apache.hadoop.fs.Path[] srcs,
                              org.apache.hadoop.fs.Path dst)
                       throws IOException

Overrides:

copyFromLocalFile in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

copyFromLocalFile

public void copyFromLocalFile(boolean delSrc,
                              boolean overwrite,
                              org.apache.hadoop.fs.Path src,
                              org.apache.hadoop.fs.Path dst)
                       throws IOException

Overrides:

copyFromLocalFile in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

getFileChecksum

public org.apache.hadoop.fs.FileChecksum getFileChecksum(org.apache.hadoop.fs.Path hadoopPath)
                                                  throws IOException

Overrides:

getFileChecksum in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

exists

public boolean exists(org.apache.hadoop.fs.Path f)
               throws IOException

Overrides:

exists in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

listLocatedStatus

public org.apache.hadoop.fs.RemoteIterator<org.apache.hadoop.fs.LocatedFileStatus> listLocatedStatus(org.apache.hadoop.fs.Path f)
                                                                                              throws IOException

Overrides:

listLocatedStatus in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

getXAttr

public byte[] getXAttr(org.apache.hadoop.fs.Path path,
                       String name)
                throws IOException

Overrides:

getXAttr in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

getXAttrs

public Map<String,byte[]> getXAttrs(org.apache.hadoop.fs.Path path)
                                   throws IOException

Overrides:

getXAttrs in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

getXAttrs

public Map<String,byte[]> getXAttrs(org.apache.hadoop.fs.Path path,
                                          List<String> names)
                                   throws IOException

Overrides:

getXAttrs in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

listXAttrs

public List<String> listXAttrs(org.apache.hadoop.fs.Path path)
                        throws IOException

Overrides:

listXAttrs in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

getStorageStatistics

public GhfsStorageStatistics getStorageStatistics()

Get the storage statistics of this filesystem.

Overrides:

getStorageStatistics in class org.apache.hadoop.fs.FileSystem

Returns:

the storage statistics

getIOStatistics

public org.apache.hadoop.fs.statistics.IOStatistics getIOStatistics()

Get the instrumentation's IOStatistics.

Specified by:

getIOStatistics in interface org.apache.hadoop.fs.statistics.IOStatisticsSource

getInstrumentation

public GhfsInstrumentation getInstrumentation()

makeQualified

public org.apache.hadoop.fs.Path makeQualified(org.apache.hadoop.fs.Path path)

Overridden to make root its own parent. This is POSIX compliant, but more importantly guards against poor directory accounting in the PathData class of Hadoop 2's FsShell.

Overrides:

makeQualified in class org.apache.hadoop.fs.FileSystem

getUri

public URI getUri()

Returns a URI of the root of this FileSystem.

Specified by:

getUri in class org.apache.hadoop.fs.FileSystem

getDefaultPort

protected int getDefaultPort()

The default port is listed as -1 as an indication that ports are not used.

Overrides:

getDefaultPort in class org.apache.hadoop.fs.FileSystem

hasPathCapability

public boolean hasPathCapability(org.apache.hadoop.fs.Path path,
                                 String capability)

Specified by:

hasPathCapability in interface org.apache.hadoop.fs.PathCapabilities

Overrides:

hasPathCapability in class org.apache.hadoop.fs.FileSystem

openFileWithOptions

public CompletableFuture<org.apache.hadoop.fs.FSDataInputStream> openFileWithOptions(org.apache.hadoop.fs.Path hadoopPath,
                                                                                     org.apache.hadoop.fs.impl.OpenFileParameters parameters)
                                                                              throws IOException

Initiate the open operation. This is invoked from both the FileSystem and FileContext APIs

Overrides:

openFileWithOptions in class org.apache.hadoop.fs.FileSystem

Parameters:

hadoopPath - path to the file

parameters - open file parameters from the builder.

Returns:

a future which will evaluate to the opened file.

Throws:

IOException - failure to resolve the link.

IllegalArgumentException - unknown mandatory key

append

public org.apache.hadoop.fs.FSDataOutputStream append(org.apache.hadoop.fs.Path hadoopPath,
                                                      int bufferSize,
                                                      org.apache.hadoop.util.Progressable progress)
                                               throws IOException

Appends to an existing file (optional operation). Not supported.

Specified by:

append in class org.apache.hadoop.fs.FileSystem

Parameters:

hadoopPath - The existing file to be appended.

bufferSize - The size of the buffer to be used.

progress - For reporting progress if it is not null.

Returns:

A writable stream.

Throws:

IOException - if an error occurs.

concat

public void concat(org.apache.hadoop.fs.Path tgt,
                   org.apache.hadoop.fs.Path[] srcs)
            throws IOException

Concat existing files into one file.

Overrides:

concat in class org.apache.hadoop.fs.FileSystem

Parameters:

tgt - the path to the target destination.

srcs - the paths to the sources to use for the concatenation.

Throws:

IOException - IO failure

getWorkingDirectory

public org.apache.hadoop.fs.Path getWorkingDirectory()

Gets the current working directory.

Specified by:

getWorkingDirectory in class org.apache.hadoop.fs.FileSystem

Returns:

The current working directory.

getDefaultReplication

public short getDefaultReplication()

Gets the default replication factor.

Overrides:

getDefaultReplication in class org.apache.hadoop.fs.FileSystem

globStatus

public org.apache.hadoop.fs.FileStatus[] globStatus(org.apache.hadoop.fs.Path pathPattern)
                                             throws IOException

Returns an array of FileStatus objects whose path names match pathPattern.

Return null if pathPattern has no glob and the path does not exist. Return an empty array if pathPattern has a glob and no path matches it.

Overrides:

globStatus in class org.apache.hadoop.fs.FileSystem

Parameters:

pathPattern - A regular expression specifying the path pattern.

Returns:

An array of FileStatus objects.

Throws:

IOException - if an error occurs.

getHomeDirectory

public org.apache.hadoop.fs.Path getHomeDirectory()

Returns home directory of the current user.

Note: This directory is only used for Hadoop purposes. It is not the same as a user's OS home directory.

Overrides:

getHomeDirectory in class org.apache.hadoop.fs.FileSystem

getCanonicalServiceName

public String getCanonicalServiceName()

Returns the service if delegation tokens are configured, otherwise, null.

Specified by:

getCanonicalServiceName in interface org.apache.hadoop.security.token.DelegationTokenIssuer

Overrides:

getCanonicalServiceName in class org.apache.hadoop.fs.FileSystem

getGcsFs

public GoogleCloudStorageFileSystem getGcsFs()

Gets GCS FS instance.

deleteOnExit

public boolean deleteOnExit(org.apache.hadoop.fs.Path f)
                     throws IOException

Overrides:

deleteOnExit in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

processDeleteOnExit

protected void processDeleteOnExit()

Overrides:

processDeleteOnExit in class org.apache.hadoop.fs.FileSystem

getContentSummary

public org.apache.hadoop.fs.ContentSummary getContentSummary(org.apache.hadoop.fs.Path f)
                                                      throws IOException

Overrides:

getContentSummary in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

copyToLocalFile

public void copyToLocalFile(boolean delSrc,
                            org.apache.hadoop.fs.Path src,
                            org.apache.hadoop.fs.Path dst)
                     throws IOException

Overrides:

copyToLocalFile in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

startLocalOutput

public org.apache.hadoop.fs.Path startLocalOutput(org.apache.hadoop.fs.Path fsOutputFile,
                                                  org.apache.hadoop.fs.Path tmpLocalFile)
                                           throws IOException

Overrides:

startLocalOutput in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

completeLocalOutput

public void completeLocalOutput(org.apache.hadoop.fs.Path fsOutputFile,
                                org.apache.hadoop.fs.Path tmpLocalFile)
                         throws IOException

Overrides:

completeLocalOutput in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

getUsed

public long getUsed()
             throws IOException

Overrides:

getUsed in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

getDefaultBlockSize

public long getDefaultBlockSize()

Overrides:

getDefaultBlockSize in class org.apache.hadoop.fs.FileSystem

setWorkingDirectory

public void setWorkingDirectory(org.apache.hadoop.fs.Path hadoopPath)

Specified by:

setWorkingDirectory in class org.apache.hadoop.fs.FileSystem

setVerifyChecksum

public void setVerifyChecksum(boolean verifyChecksum)

Overrides:

setVerifyChecksum in class org.apache.hadoop.fs.FileSystem

setPermission

public void setPermission(org.apache.hadoop.fs.Path p,
                          org.apache.hadoop.fs.permission.FsPermission permission)
                   throws IOException

Overrides:

setPermission in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

setOwner

public void setOwner(org.apache.hadoop.fs.Path p,
                     String username,
                     String groupname)
              throws IOException

Overrides:

setOwner in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

setTimes

public void setTimes(org.apache.hadoop.fs.Path p,
                     long mtime,
                     long atime)
              throws IOException

Overrides:

setTimes in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

setXAttr

public void setXAttr(org.apache.hadoop.fs.Path path,
                     String name,
                     byte[] value,
                     EnumSet<org.apache.hadoop.fs.XAttrSetFlag> flags)
              throws IOException

Overrides:

setXAttr in class org.apache.hadoop.fs.FileSystem

Throws:

IOException

removeXAttr

public void removeXAttr(org.apache.hadoop.fs.Path path,
                        String name)
                 throws IOException

Overrides:

removeXAttr in class org.apache.hadoop.fs.FileSystem

Throws:

IOException