Package org.apache.flink.core.fs.local

Class LocalDataInputStream

java.lang.Object

java.io.InputStream

org.apache.flink.core.fs.FSDataInputStream

org.apache.flink.core.fs.local.LocalDataInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

@Internal
public class LocalDataInputStream
extends FSDataInputStream

The LocalDataInputStream class is a wrapper class for a data input stream to the local file system.

Constructor Summary

Constructors

Constructor	Description
LocalDataInputStream(File file)	Constructs a new LocalDataInputStream object from a given File object.

Method Summary

Modifier and Type	Method	Description
int	available()
void	close()
long	getPos()	Gets the current position in the input stream.
int	read()
int	read(byte[] buffer, int offset, int length)
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

mark, markSupported, nullInputStream, read, readAllBytes, readNBytes, readNBytes, reset, transferTo

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalDataInputStream

public LocalDataInputStream(File file)
                     throws IOException

Constructs a new LocalDataInputStream object from a given File object.

Parameters:

file - The File the data stream is read from

Throws:

IOException - Thrown if the data input stream cannot be created.

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(@Nonnull
                byte[] buffer,
                int offset,
                int length)
         throws IOException

Overrides:

read 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

available

public int available()
              throws IOException

Overrides:

available in class InputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class InputStream

Throws:

IOException