water.persist

Class VecDataInputStream

java.lang.Object

java.io.InputStream

water.persist.VecDataInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, org.apache.hadoop.fs.PositionedReadable, org.apache.hadoop.fs.Seekable

public class VecDataInputStream
extends java.io.InputStream
implements org.apache.hadoop.fs.Seekable, org.apache.hadoop.fs.PositionedReadable

Seekable and PositionedReadable implementation of InputStream backed by a Vec data source.

Constructor Summary

Constructors

Constructor and Description
VecDataInputStream(water.fvec.Vec v)

Method Summary

Methods

Modifier and Type	Method and Description
long	getPos()
int	read()
int	read(byte[] buffer, int offset, int length)
int	read(long position, byte[] buffer, int offset, int length)
void	readFully(long position, byte[] buffer)
void	readFully(long position, byte[] buffer, int offset, int length)
void	seek(long position)
boolean	seekToNewSource(long targetPos)
long	skip(long n)

Methods inherited from class java.io.InputStream

available, close, mark, markSupported, read, reset

Methods inherited from class java.lang.Object

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

Constructor Detail

VecDataInputStream

public VecDataInputStream(water.fvec.Vec v)

Method Detail

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[] buffer,
       int offset,
       int length)
         throws java.io.IOException

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

skip

public long skip(long n)
          throws java.io.IOException

Overrides:

skip in class java.io.InputStream

Throws:

java.io.IOException

read

public int read(long position,
       byte[] buffer,
       int offset,
       int length)
         throws java.io.IOException

Specified by:

read in interface org.apache.hadoop.fs.PositionedReadable

Throws:

java.io.IOException

readFully

public void readFully(long position,
             byte[] buffer,
             int offset,
             int length)
               throws java.io.IOException

Specified by:

readFully in interface org.apache.hadoop.fs.PositionedReadable

Throws:

java.io.IOException

readFully

public void readFully(long position,
             byte[] buffer)
               throws java.io.IOException

Specified by:

readFully in interface org.apache.hadoop.fs.PositionedReadable

Throws:

java.io.IOException

seek

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

Specified by:

seek in interface org.apache.hadoop.fs.Seekable

Throws:

java.io.IOException

getPos

public long getPos()
            throws java.io.IOException

Specified by:

getPos in interface org.apache.hadoop.fs.Seekable

Throws:

java.io.IOException

seekToNewSource

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

Specified by:

seekToNewSource in interface org.apache.hadoop.fs.Seekable

Throws:

java.io.IOException