org.gridgain.grid.kernal.ggfs.hadoop

Class GridGgfsHadoopProxyInputStream

java.lang.Object

java.io.InputStream

org.gridgain.grid.kernal.ggfs.hadoop.GridGgfsHadoopProxyInputStream

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.hadoop.fs.PositionedReadable, org.apache.hadoop.fs.Seekable

public class GridGgfsHadoopProxyInputStream
extends InputStream
implements org.apache.hadoop.fs.Seekable, org.apache.hadoop.fs.PositionedReadable

Secondary Hadoop file system input stream wrapper.

Constructor Summary

Constructors

Constructor and Description
GridGgfsHadoopProxyInputStream(org.apache.hadoop.fs.FSDataInputStream is, GridGgfsHadoopLogger clientLog, long logStreamId) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
int	available()
void	close()
long	getPos()
void	mark(int readLimit)
boolean	markSupported()
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
int	read(long pos, byte[] buf, int off, int len)
void	readFully(long pos, byte[] buf)
void	readFully(long pos, byte[] buf, int off, int len)
void	reset()
void	seek(long pos)
boolean	seekToNewSource(long targetPos)
long	skip(long n)

Methods inherited from class java.lang.Object

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

Constructor Detail

GridGgfsHadoopProxyInputStream

public GridGgfsHadoopProxyInputStream(org.apache.hadoop.fs.FSDataInputStream is,
                              GridGgfsHadoopLogger clientLog,
                              long logStreamId)

Constructor.

Parameters:

is - Actual input stream to the secondary file system.

clientLog - Client log.

Method Detail

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 Closeable

Specified by:

close in interface AutoCloseable

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

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(long pos,
       byte[] buf,
       int off,
       int len)
         throws IOException

Specified by:

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

Throws:

IOException

readFully

public void readFully(long pos,
             byte[] buf,
             int off,
             int len)
               throws IOException

Specified by:

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

Throws:

IOException

readFully

public void readFully(long pos,
             byte[] buf)
               throws IOException

Specified by:

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

Throws:

IOException

seek

public void seek(long pos)
          throws IOException

Specified by:

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

Throws:

IOException

getPos

public long getPos()
            throws IOException

Specified by:

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

Throws:

IOException

seekToNewSource

public boolean seekToNewSource(long targetPos)
                        throws IOException

Specified by:

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

Throws:

IOException