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:

Closeable, DataInput, AutoCloseable

@InterfaceAudience.Private
public class ByteBufferDataReader
extends DataInputStream

read data from a input buffer

Constructor Summary

Constructors

Constructor and Description
ByteBufferDataReader(InputBuffer buffer)

Method Summary

Modifier and Type	Method and 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()
String	readLine()
long	readLong()
short	readShort()
int	readUnsignedByte()
int	readUnsignedShort()
String	readUTF()
void	reset(InputBuffer buffer)
int	skipBytes(int n)

Methods inherited from class java.io.InputStream

available, mark, markSupported, read, reset, skip

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 IOException

Specified by:

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

readFully

public void readFully(byte[] b)
               throws IOException

Throws:

IOException

readFully

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

Throws:

IOException

skipBytes

public int skipBytes(int n)
              throws IOException

Throws:

IOException

readBoolean

public boolean readBoolean()
                    throws IOException

Throws:

IOException

readByte

public byte readByte()
              throws IOException

Throws:

IOException

readUnsignedByte

public int readUnsignedByte()
                     throws IOException

Throws:

IOException

readShort

public short readShort()
                throws IOException

Throws:

IOException

readUnsignedShort

public int readUnsignedShort()
                      throws IOException

Throws:

IOException

readChar

public char readChar()
              throws IOException

Throws:

IOException

readInt

public int readInt()
            throws IOException

Throws:

IOException

readLong

public long readLong()
              throws IOException

Throws:

IOException

readFloat

public float readFloat()
                throws IOException

Throws:

IOException

readDouble

public double readDouble()
                  throws IOException

Throws:

IOException

readLine

public String readLine()
                throws IOException

Throws:

IOException

readUTF

public final String readUTF()
                     throws IOException

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

hasUnReadData

public boolean hasUnReadData()

Specified by:

hasUnReadData in class DataInputStream