org.apache.hadoop.streaming

类 UTF8ByteArrayUtils

java.lang.Object

org.apache.hadoop.streaming.UTF8ByteArrayUtils

已过时。

use UTF8ByteArrayUtils and StreamKeyValUtil instead

public class UTF8ByteArrayUtils
extends Object

General utils for byte array containing UTF-8 encoded strings

构造器概要

构造器

构造器和说明
UTF8ByteArrayUtils() 已过时。

方法概要

方法

限定符和类型	方法和说明
static int	findByte(byte[] utf, int start, int end, byte b) 已过时。 use UTF8ByteArrayUtils.findByte(byte[], int, int, byte)
static int	findBytes(byte[] utf, int start, int end, byte[] b) 已过时。 use UTF8ByteArrayUtils.findBytes(byte[], int, int, byte[])
static int	findNthByte(byte[] utf, byte b, int n) 已过时。 use UTF8ByteArrayUtils.findNthByte(byte[], byte, int)
static int	findNthByte(byte[] utf, int start, int length, byte b, int n) 已过时。 use UTF8ByteArrayUtils.findNthByte(byte[], int, int, byte, int)
static int	findTab(byte[] utf) 已过时。 use StreamKeyValUtil.findTab(byte[])
static int	findTab(byte[] utf, int start, int length) 已过时。 use StreamKeyValUtil.findTab(byte[], int, int)
static int	readLine(LineReader lineReader, Text out) 已过时。 use StreamKeyValUtil.readLine(LineReader, Text)
static void	splitKeyVal(byte[] utf, int start, int length, Text key, Text val, int splitPos) 已过时。 use StreamKeyValUtil.splitKeyVal(byte[], int, int, Text, Text, int)
static void	splitKeyVal(byte[] utf, int start, int length, Text key, Text val, int splitPos, int separatorLength) 已过时。 use StreamKeyValUtil.splitKeyVal(byte[], int, int, Text, Text, int, int)
static void	splitKeyVal(byte[] utf, Text key, Text val, int splitPos) 已过时。 use StreamKeyValUtil.splitKeyVal(byte[], Text, Text, int)
static void	splitKeyVal(byte[] utf, Text key, Text val, int splitPos, int separatorLength) 已过时。 use StreamKeyValUtil.splitKeyVal(byte[], Text, Text, int, int)

从类继承的方法 java.lang.Object

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

构造器详细资料

UTF8ByteArrayUtils

public UTF8ByteArrayUtils()

已过时。

方法详细资料

findTab

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

已过时。 use StreamKeyValUtil.findTab(byte[], int, int)

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

参数:

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

start - starting offset

length - no. of bytes

返回:

position that first tab occures otherwise -1

findByte

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

已过时。 use UTF8ByteArrayUtils.findByte(byte[], int, int, byte)

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

参数:

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

start - starting offset

end - ending position

b - the byte to find

返回:

position that first byte occures otherwise -1

findBytes

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

已过时。 use UTF8ByteArrayUtils.findBytes(byte[], int, int, byte[])

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

参数:

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

start - starting offset

end - ending position

b - the bytes to find

返回:

position that first byte occures otherwise -1

findNthByte

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

已过时。 use UTF8ByteArrayUtils.findNthByte(byte[], int, int, byte, int)

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

参数:

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

返回:

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

findNthByte

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

已过时。 use UTF8ByteArrayUtils.findNthByte(byte[], byte, int)

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

参数:

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

b - the byte to find

n - the desired occurrence of the given byte

返回:

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

findTab

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

已过时。 use StreamKeyValUtil.findTab(byte[])

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

参数:

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

返回:

position that first tab occures otherwise -1

splitKeyVal

@Deprecated
public static void splitKeyVal(byte[] utf,
                          int start,
                          int length,
                          Text key,
                          Text val,
                          int splitPos,
                          int separatorLength)
                        throws IOException

已过时。 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.

参数:

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

抛出:

IOException

splitKeyVal

@Deprecated
public static void splitKeyVal(byte[] utf,
                          int start,
                          int length,
                          Text key,
                          Text val,
                          int splitPos)
                        throws IOException

已过时。 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.

参数:

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

抛出:

IOException

splitKeyVal

@Deprecated
public static void splitKeyVal(byte[] utf,
                          Text key,
                          Text val,
                          int splitPos,
                          int separatorLength)
                        throws IOException

已过时。 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.

参数:

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

抛出:

IOException

splitKeyVal

@Deprecated
public static void splitKeyVal(byte[] utf,
                          Text key,
                          Text val,
                          int splitPos)
                        throws IOException

已过时。 use StreamKeyValUtil.splitKeyVal(byte[], Text, Text, int)

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

参数:

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

抛出:

IOException

readLine

@Deprecated
public static int readLine(LineReader lineReader,
                      Text out)
                    throws IOException

已过时。 use StreamKeyValUtil.readLine(LineReader, Text)

Read a utf8 encoded line from a data input stream.

参数:

lineReader - LineReader to read the line from.

out - Text to read into

返回:

number of bytes read

抛出:

IOException