Package org.apache.hadoop.fs.ftp

Class FTPInputStream

java.lang.Object

java.io.InputStream

org.apache.hadoop.fs.FSInputStream

org.apache.hadoop.fs.ftp.FTPInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, PositionedReadable, Seekable

@Private
@Unstable
public class FTPInputStream
extends FSInputStream

Constructor Summary

Constructors

Constructor	Description
FTPInputStream(java.io.InputStream stream, org.apache.commons.net.ftp.FTPClient client, FileSystem.Statistics stats)

Method Summary

Modifier and Type	Method	Description
void	close()
long	getPos()	Return the current offset from the start of the file
void	mark(int readLimit)
boolean	markSupported()
int	read()
int	read(byte[] buf, int off, int len)
void	reset()
void	seek(long pos)	Seek to the given offset from the start of the file.
boolean	seekToNewSource(long targetPos)	Seeks a different copy of the data.

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

read, readFully, readFully, toString, validatePositionedReadArgs

Methods inherited from class java.io.InputStream

available, nullInputStream, read, readAllBytes, readNBytes, readNBytes, skip, transferTo

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.fs.PositionedReadable

maxReadSizeForVectorReads, minSeekForVectorReads, readVectored

Constructor Detail

FTPInputStream

public FTPInputStream(java.io.InputStream stream,
                      org.apache.commons.net.ftp.FTPClient client,
                      FileSystem.Statistics stats)

Method Detail

getPos

public long getPos()
            throws java.io.IOException

Description copied from class: FSInputStream

Return the current offset from the start of the file

Specified by:

getPos in interface Seekable

Specified by:

getPos in class FSInputStream

Returns:

offset from the start of the file.

Throws:

java.io.IOException - raised on errors performing I/O.

seek

public void seek(long pos)
          throws java.io.IOException

Description copied from class: FSInputStream

Seek to the given offset from the start of the file. The next read() will be from that location. Can't seek past the end of the file.

Specified by:

seek in interface Seekable

Specified by:

seek in class FSInputStream

Parameters:

pos - offset from the start of the file.

Throws:

java.io.IOException - raised on errors performing I/O.

seekToNewSource

public boolean seekToNewSource(long targetPos)
                        throws java.io.IOException

Description copied from class: FSInputStream

Seeks a different copy of the data. Returns true if found a new source, false otherwise.

Specified by:

seekToNewSource in interface Seekable

Specified by:

seekToNewSource in class FSInputStream

Parameters:

targetPos - target position.

Returns:

true if found a new source, false otherwise.

Throws:

java.io.IOException - raised on errors performing I/O.

read

public int read()
         throws java.io.IOException

Specified by:

read in class java.io.InputStream

Throws:

java.io.IOException

read

public int read(byte[] buf,
                int off,
                int len)
         throws java.io.IOException

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface java.io.Closeable

Overrides:

close in class java.io.InputStream

Throws:

java.io.IOException

markSupported

public boolean markSupported()

Overrides:

markSupported in class java.io.InputStream

mark

public void mark(int readLimit)

Overrides:

mark in class java.io.InputStream

reset

public void reset()
           throws java.io.IOException

Overrides:

reset in class java.io.InputStream

Throws:

java.io.IOException