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java.lang.Objectorg.apache.hadoop.conf.Configured
org.apache.hadoop.fs.FileSystem
org.apache.hadoop.fs.ftp.FTPFileSystem
public class FTPFileSystem
A FileSystem backed by an FTP client provided by Apache Commons Net.
| Nested Class Summary |
|---|
| Nested classes/interfaces inherited from class org.apache.hadoop.fs.FileSystem |
|---|
FileSystem.Statistics |
| Field Summary | |
|---|---|
static int |
DEFAULT_BLOCK_SIZE
|
static int |
DEFAULT_BUFFER_SIZE
|
static org.apache.commons.logging.Log |
LOG
|
| Fields inherited from class org.apache.hadoop.fs.FileSystem |
|---|
FS_DEFAULT_NAME_KEY, statistics |
| Constructor Summary | |
|---|---|
FTPFileSystem()
|
|
| Method Summary | |
|---|---|
FSDataOutputStream |
append(Path f,
int bufferSize,
Progressable progress)
This optional operation is not yet supported. |
FSDataOutputStream |
create(Path file,
FsPermission permission,
boolean overwrite,
int bufferSize,
short replication,
long blockSize,
Progressable progress)
A stream obtained via this call must be closed before using other APIs of this class or else the invocation will block. |
boolean |
delete(Path file)
Deprecated. Use delete(Path, boolean) instead |
boolean |
delete(Path file,
boolean recursive)
Delete a file. |
FileStatus |
getFileStatus(Path file)
Return a file status object that represents the path. |
Path |
getHomeDirectory()
Return the current user's home directory in this filesystem. |
URI |
getUri()
Returns a URI whose scheme and authority identify this FileSystem. |
Path |
getWorkingDirectory()
Get the current working directory for the given file system |
void |
initialize(URI uri,
Configuration conf)
Called after a new FileSystem instance is constructed. |
FileStatus[] |
listStatus(Path file)
List the statuses of the files/directories in the given path if the path is a directory. |
boolean |
mkdirs(Path file,
FsPermission permission)
Make the given file and all non-existent parents into directories. |
FSDataInputStream |
open(Path file,
int bufferSize)
Opens an FSDataInputStream at the indicated Path. |
boolean |
rename(Path src,
Path dst)
Renames Path src to Path dst. |
void |
setWorkingDirectory(Path newDir)
Set the current working directory for the given file system. |
| 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 |
| Field Detail |
|---|
public static final org.apache.commons.logging.Log LOG
public static final int DEFAULT_BUFFER_SIZE
public static final int DEFAULT_BLOCK_SIZE
| Constructor Detail |
|---|
public FTPFileSystem()
| Method Detail |
|---|
public void initialize(URI uri,
Configuration conf)
throws IOException
FileSystem
initialize in class FileSystemuri - a uri whose authority section names the host, port, etc.
for this FileSystemconf - the configuration
IOException
public FSDataInputStream open(Path file,
int bufferSize)
throws IOException
FileSystem
open in class FileSystemfile - the file name to openbufferSize - the size of the buffer to be used.
IOException
public FSDataOutputStream create(Path file,
FsPermission permission,
boolean overwrite,
int bufferSize,
short replication,
long blockSize,
Progressable progress)
throws IOException
create in class FileSystemfile - the file name to openoverwrite - if a file with this name already exists, then if true,
the file will be overwritten, and if false an error will be thrown.bufferSize - the size of the buffer to be used.replication - required block replication for the file.
IOExceptionFileSystem.setPermission(Path, FsPermission)
public FSDataOutputStream append(Path f,
int bufferSize,
Progressable progress)
throws IOException
append in class FileSystemf - the existing file to be appended.bufferSize - the size of the buffer to be used.progress - for reporting progress if it is not null.
IOException
@Deprecated
public boolean delete(Path file)
throws IOException
delete in class FileSystemIOException
public boolean delete(Path file,
boolean recursive)
throws IOException
FileSystem
delete in class FileSystemfile - the path to delete.recursive - if path is a directory and set to
true, the directory is deleted else throws an exception. In
case of a file the recursive can be set to either true or false.
IOExceptionpublic URI getUri()
FileSystem
getUri in class FileSystem
public FileStatus[] listStatus(Path file)
throws IOException
FileSystem
listStatus in class FileSystemfile - given path
IOException
public FileStatus getFileStatus(Path file)
throws IOException
FileSystem
getFileStatus in class FileSystemfile - The path we want information from
FileNotFoundException - when the path does not exist;
IOException see specific implementation
IOException
public boolean mkdirs(Path file,
FsPermission permission)
throws IOException
FileSystem
mkdirs in class FileSystemIOException
public boolean rename(Path src,
Path dst)
throws IOException
FileSystem
rename in class FileSystemIOExceptionpublic Path getWorkingDirectory()
FileSystem
getWorkingDirectory in class FileSystempublic Path getHomeDirectory()
FileSystem
getHomeDirectory in class FileSystempublic void setWorkingDirectory(Path newDir)
FileSystem
setWorkingDirectory in class FileSystem
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