Package org.apache.hadoop.mapred.nativetask.buffer

Class ByteBufferDataReader

java.lang.Object

java.io.InputStream

org.apache.hadoop.mapred.nativetask.buffer.DataInputStream

org.apache.hadoop.mapred.nativetask.buffer.ByteBufferDataReader

All Implemented Interfaces:

java.io.Closeable, java.io.DataInput, java.lang.AutoCloseable

@Private
public class ByteBufferDataReader
extends DataInputStream

read data from a input buffer

Constructor Summary

Constructors

Constructor	Description
ByteBufferDataReader(InputBuffer buffer)

Method Summary

Modifier and Type	Method	Description
void	close()
boolean	hasUnReadData()
int	read()
int	read(byte[] b, int off, int len)
boolean	readBoolean()
byte	readByte()
char	readChar()
double	readDouble()
float	readFloat()
void	readFully(byte[] b)
void	readFully(byte[] b, int off, int len)
int	readInt()
java.lang.String	readLine()
long	readLong()
short	readShort()
int	readUnsignedByte()
int	readUnsignedShort()
java.lang.String	readUTF()
void	reset(InputBuffer buffer)
int	skipBytes(int n)

Methods inherited from class java.io.InputStream

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

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteBufferDataReader

public ByteBufferDataReader(InputBuffer buffer)

Method Detail

reset

public void reset(InputBuffer buffer)

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[] b,
                int off,
                int len)
         throws java.io.IOException

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

readFully

public void readFully(byte[] b)
               throws java.io.IOException

Throws:

java.io.IOException

readFully

public void readFully(byte[] b,
                      int off,
                      int len)
               throws java.io.IOException

Throws:

java.io.IOException

skipBytes

public int skipBytes(int n)
              throws java.io.IOException

Throws:

java.io.IOException

readBoolean

public boolean readBoolean()
                    throws java.io.IOException

Throws:

java.io.IOException

readByte

public byte readByte()
              throws java.io.IOException

Throws:

java.io.IOException

readUnsignedByte

public int readUnsignedByte()
                     throws java.io.IOException

Throws:

java.io.IOException

readShort

public short readShort()
                throws java.io.IOException

Throws:

java.io.IOException

readUnsignedShort

public int readUnsignedShort()
                      throws java.io.IOException

Throws:

java.io.IOException

readChar

public char readChar()
              throws java.io.IOException

Throws:

java.io.IOException

readInt

public int readInt()
            throws java.io.IOException

Throws:

java.io.IOException

readLong

public long readLong()
              throws java.io.IOException

Throws:

java.io.IOException

readFloat

public float readFloat()
                throws java.io.IOException

Throws:

java.io.IOException

readDouble

public double readDouble()
                  throws java.io.IOException

Throws:

java.io.IOException

readLine

public java.lang.String readLine()
                          throws java.io.IOException

Throws:

java.io.IOException

readUTF

public final java.lang.String readUTF()
                               throws java.io.IOException

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

hasUnReadData

public boolean hasUnReadData()

Specified by:

hasUnReadData in class DataInputStream