Class HdfsFileSystem

java.lang.Object

org.apache.commons.vfs2.provider.AbstractVfsComponent

org.apache.commons.vfs2.provider.AbstractFileSystem

org.apache.commons.vfs2.provider.hdfs.HdfsFileSystem

All Implemented Interfaces:

Closeable, AutoCloseable, FileSystem, VfsComponent

public class HdfsFileSystem
extends AbstractFileSystem

A VFS FileSystem that interacts with HDFS.

Since:

2.1

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	HdfsFileSystem(FileName rootName, FileSystemOptions fileSystemOptions)	Constructs file system.

Method Summary

Modifier and Type	Method	Description
protected void	addCapabilities(Collection<Capability> capabilities)
void	close()
protected FileObject	createFile(AbstractFileName name)
FileObject	resolveFile(FileName name)	Resolve FileName into FileObject.

Methods inherited from class org.apache.commons.vfs2.provider.AbstractFileSystem

addJunction, addListener, closeCommunicationLink, decorateFileObject, doCloseCommunicationLink, doReplicateFile, fireFileChanged, fireFileCreated, fireFileDeleted, getAttribute, getFileFromCache, getFileSystemManager, getFileSystemOptions, getLastModTimeAccuracy, getParentLayer, getRoot, getRootName, getRootURI, hasCapability, init, isOpen, isReleaseable, notifyAllStreamsClosed, putFileToCache, removeFileFromCache, removeJunction, removeListener, replicateFile, resolveFile, setAttribute

Methods inherited from class org.apache.commons.vfs2.provider.AbstractVfsComponent

getContext, getLogger, setContext, setLogger

Methods inherited from class java.lang.Object

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

Constructor Details

HdfsFileSystem

protected HdfsFileSystem(FileName rootName,
 FileSystemOptions fileSystemOptions)

Constructs file system.

Parameters:

rootName - Name of the root directory of this file system.

fileSystemOptions - options for this file system instance.

Method Details

addCapabilities

protected void addCapabilities(Collection<Capability> capabilities)

Specified by:

addCapabilities in class AbstractFileSystem

See Also:

• AbstractFileSystem.addCapabilities(Collection)

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface VfsComponent

Overrides:

close in class AbstractFileSystem

See Also:

• AbstractFileSystem.close()

createFile

protected FileObject createFile(AbstractFileName name)
                         throws Exception

Specified by:

createFile in class AbstractFileSystem

Throws:

Exception

See Also:

• AbstractFileSystem.createFile(AbstractFileName)

resolveFile

public FileObject resolveFile(FileName name)
                       throws FileSystemException

Resolve FileName into FileObject.

Specified by:

resolveFile in interface FileSystem

Overrides:

resolveFile in class AbstractFileSystem

Parameters:

name - The name of a file on the HdfsFileSystem.

Returns:

resolved FileObject.

Throws:

FileSystemException - if an error occurred.