Package org.apache.flink.core.fs

Class FSDataInputStreamWrapper

java.lang.Object

java.io.InputStream

org.apache.flink.core.fs.FSDataInputStream

org.apache.flink.core.fs.FSDataInputStreamWrapper

All Implemented Interfaces:

Closeable, AutoCloseable, WrappingProxy<FSDataInputStream>

Direct Known Subclasses:

ClosingFSDataInputStream, FsSegmentDataInputStream

@Internal
public class FSDataInputStreamWrapper
extends FSDataInputStream
implements WrappingProxy<FSDataInputStream>

Simple forwarding wrapper around FSDataInputStream.

Field Summary

Fields

Modifier and Type	Field	Description
protected FSDataInputStream	inputStream

Constructor Summary

Constructors

Constructor	Description
FSDataInputStreamWrapper(FSDataInputStream inputStream)

Method Summary

Modifier and Type	Method	Description
int	available()
void	close()
long	getPos()	Gets the current position in the input stream.
FSDataInputStream	getWrappedDelegate()
void	mark(int readlimit)
boolean	markSupported()
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
void	reset()
void	seek(long desired)	Seek to the given offset from the start of the file.
long	skip(long n)

Methods inherited from class java.io.InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, transferTo

Methods inherited from class java.lang.Object

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

Field Detail

inputStream

protected final FSDataInputStream inputStream

Constructor Detail

FSDataInputStreamWrapper

public FSDataInputStreamWrapper(FSDataInputStream inputStream)

Method Detail

seek

public void seek(long desired)
          throws IOException

Description copied from class: FSDataInputStream

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 stream.

Specified by:

seek in class FSDataInputStream

Parameters:

desired - the desired offset

Throws:

IOException - Thrown if an error occurred while seeking inside the input stream.

getPos

public long getPos()
            throws IOException

Description copied from class: FSDataInputStream

Gets the current position in the input stream.

Specified by:

getPos in class FSDataInputStream

Returns:

current position in the input stream

Throws:

IOException - Thrown if an I/O error occurred in the underlying stream implementation while accessing the stream's position.

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] b)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

read

public int read(byte[] b,
                int off,
                int len)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class InputStream

Throws:

IOException

available

public int available()
              throws IOException

Overrides:

available in class InputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class InputStream

Throws:

IOException

mark

public void mark(int readlimit)

Overrides:

mark in class InputStream

reset

public void reset()
           throws IOException

Overrides:

reset in class InputStream

Throws:

IOException

markSupported

public boolean markSupported()

Overrides:

markSupported in class InputStream

getWrappedDelegate

public FSDataInputStream getWrappedDelegate()

Specified by:

getWrappedDelegate in interface WrappingProxy<FSDataInputStream>