org.apache.hadoop.streaming

Class UTF8ByteArrayUtils

java.lang.Object

org.apache.hadoop.streaming.UTF8ByteArrayUtils

Deprecated.

use UTF8ByteArrayUtils and StreamKeyValUtil instead

public class UTF8ByteArrayUtils
extends java.lang.Object

General utils for byte array containing UTF-8 encoded strings

Constructor Summary

Constructors

Constructor and Description
UTF8ByteArrayUtils() Deprecated.

Method Summary

Methods

Modifier and Type	Method and Description
static int	findByte(byte[] utf, int start, int end, byte b) Deprecated. use UTF8ByteArrayUtils.findByte(byte[], int, int, byte)
static int	findBytes(byte[] utf, int start, int end, byte[] b) Deprecated. use UTF8ByteArrayUtils.findBytes(byte[], int, int, byte[])
static int	findNthByte(byte[] utf, byte b, int n) Deprecated. use UTF8ByteArrayUtils.findNthByte(byte[], byte, int)
static int	findNthByte(byte[] utf, int start, int length, byte b, int n) Deprecated. use UTF8ByteArrayUtils.findNthByte(byte[], int, int, byte, int)
static int	findTab(byte[] utf) Deprecated. use StreamKeyValUtil.findTab(byte[])
static int	findTab(byte[] utf, int start, int length) Deprecated. use StreamKeyValUtil.findTab(byte[], int, int)
static int	readLine(org.apache.hadoop.util.LineReader lineReader, org.apache.hadoop.io.Text out) Deprecated. use StreamKeyValUtil.readLine(LineReader, Text)
static void	splitKeyVal(byte[] utf, int start, int length, org.apache.hadoop.io.Text key, org.apache.hadoop.io.Text val, int splitPos) Deprecated. use StreamKeyValUtil.splitKeyVal(byte[], int, int, Text, Text, int)
static void	splitKeyVal(byte[] utf, int start, int length, org.apache.hadoop.io.Text key, org.apache.hadoop.io.Text val, int splitPos, int separatorLength) Deprecated. use StreamKeyValUtil.splitKeyVal(byte[], int, int, Text, Text, int, int)
static void	splitKeyVal(byte[] utf, org.apache.hadoop.io.Text key, org.apache.hadoop.io.Text val, int splitPos) Deprecated. use StreamKeyValUtil.splitKeyVal(byte[], Text, Text, int)
static void	splitKeyVal(byte[] utf, org.apache.hadoop.io.Text key, org.apache.hadoop.io.Text val, int splitPos, int separatorLength) Deprecated. use StreamKeyValUtil.splitKeyVal(byte[], Text, Text, int, int)

Methods inherited from class java.lang.Object

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

Constructor Detail

UTF8ByteArrayUtils

public UTF8ByteArrayUtils()

Deprecated.

Method Detail

findTab

@Deprecated
public static int findTab(byte[] utf,
                     int start,
                     int length)

Deprecated. use StreamKeyValUtil.findTab(byte[], int, int)

Find the first occured tab in a UTF-8 encoded string

Parameters:

utf - a byte array containing a UTF-8 encoded string

start - starting offset

length - no. of bytes

Returns:

position that first tab occures otherwise -1

findByte

@Deprecated
public static int findByte(byte[] utf,
                      int start,
                      int end,
                      byte b)

Deprecated. use UTF8ByteArrayUtils.findByte(byte[], int, int, byte)

Find the first occurrence of the given byte b in a UTF-8 encoded string

Parameters:

utf - a byte array containing a UTF-8 encoded string

start - starting offset

end - ending position

b - the byte to find

Returns:

position that first byte occures otherwise -1

findBytes

@Deprecated
public static int findBytes(byte[] utf,
                       int start,
                       int end,
                       byte[] b)

Deprecated. use UTF8ByteArrayUtils.findBytes(byte[], int, int, byte[])

Find the first occurrence of the given bytes b in a UTF-8 encoded string

Parameters:

utf - a byte array containing a UTF-8 encoded string

start - starting offset

end - ending position

b - the bytes to find

Returns:

position that first byte occures otherwise -1

findNthByte

@Deprecated
public static int findNthByte(byte[] utf,
                         int start,
                         int length,
                         byte b,
                         int n)

Deprecated. use UTF8ByteArrayUtils.findNthByte(byte[], int, int, byte, int)

Find the nth occurrence of the given byte b in a UTF-8 encoded string

Parameters:

utf - a byte array containing a UTF-8 encoded string

start - starting offset

length - the length of byte array

b - the byte to find

n - the desired occurrence of the given byte

Returns:

position that nth occurrence of the given byte if exists; otherwise -1

findNthByte

@Deprecated
public static int findNthByte(byte[] utf,
                         byte b,
                         int n)

Deprecated. use UTF8ByteArrayUtils.findNthByte(byte[], byte, int)

Find the nth occurrence of the given byte b in a UTF-8 encoded string

Parameters:

utf - a byte array containing a UTF-8 encoded string

b - the byte to find

n - the desired occurrence of the given byte

Returns:

position that nth occurrence of the given byte if exists; otherwise -1

findTab

@Deprecated
public static int findTab(byte[] utf)

Deprecated. use StreamKeyValUtil.findTab(byte[])

Find the first occured tab in a UTF-8 encoded string

Parameters:

utf - a byte array containing a UTF-8 encoded string

Returns:

position that first tab occures otherwise -1

splitKeyVal

@Deprecated
public static void splitKeyVal(byte[] utf,
                          int start,
                          int length,
                          org.apache.hadoop.io.Text key,
                          org.apache.hadoop.io.Text val,
                          int splitPos,
                          int separatorLength)
                        throws java.io.IOException

Deprecated. use StreamKeyValUtil.splitKeyVal(byte[], int, int, Text, Text, int, int)

split a UTF-8 byte array into key and value assuming that the delimilator is at splitpos.

Parameters:

utf - utf-8 encoded string

start - starting offset

length - no. of bytes

key - contains key upon the method is returned

val - contains value upon the method is returned

splitPos - the split pos

separatorLength - the length of the separator between key and value

Throws:

java.io.IOException

splitKeyVal

@Deprecated
public static void splitKeyVal(byte[] utf,
                          int start,
                          int length,
                          org.apache.hadoop.io.Text key,
                          org.apache.hadoop.io.Text val,
                          int splitPos)
                        throws java.io.IOException

Deprecated. use StreamKeyValUtil.splitKeyVal(byte[], int, int, Text, Text, int)

split a UTF-8 byte array into key and value assuming that the delimilator is at splitpos.

Parameters:

utf - utf-8 encoded string

start - starting offset

length - no. of bytes

key - contains key upon the method is returned

val - contains value upon the method is returned

splitPos - the split pos

Throws:

java.io.IOException

splitKeyVal

@Deprecated
public static void splitKeyVal(byte[] utf,
                          org.apache.hadoop.io.Text key,
                          org.apache.hadoop.io.Text val,
                          int splitPos,
                          int separatorLength)
                        throws java.io.IOException

Deprecated. use StreamKeyValUtil.splitKeyVal(byte[], Text, Text, int, int)

split a UTF-8 byte array into key and value assuming that the delimilator is at splitpos.

Parameters:

utf - utf-8 encoded string

key - contains key upon the method is returned

val - contains value upon the method is returned

splitPos - the split pos

separatorLength - the length of the separator between key and value

Throws:

java.io.IOException

splitKeyVal

@Deprecated
public static void splitKeyVal(byte[] utf,
                          org.apache.hadoop.io.Text key,
                          org.apache.hadoop.io.Text val,
                          int splitPos)
                        throws java.io.IOException

Deprecated. use StreamKeyValUtil.splitKeyVal(byte[], Text, Text, int)

split a UTF-8 byte array into key and value assuming that the delimilator is at splitpos.

Parameters:

utf - utf-8 encoded string

key - contains key upon the method is returned

val - contains value upon the method is returned

splitPos - the split pos

Throws:

java.io.IOException

readLine

@Deprecated
public static int readLine(org.apache.hadoop.util.LineReader lineReader,
                      org.apache.hadoop.io.Text out)
                    throws java.io.IOException

Deprecated. use StreamKeyValUtil.readLine(LineReader, Text)

Read a utf8 encoded line from a data input stream.

Parameters:

lineReader - LineReader to read the line from.

out - Text to read into

Returns:

number of bytes read

Throws:

java.io.IOException