org.dromara.hutool.core.text.replacer

Class HighMultiReplacer

java.lang.Object

org.dromara.hutool.core.text.replacer.StrReplacer

org.dromara.hutool.core.text.replacer.HighMultiReplacer

All Implemented Interfaces:

Serializable, Function<CharSequence,CharSequence>, UnaryOperator<CharSequence>

public class HighMultiReplacer
extends StrReplacer

高效替换器，通过查找指定关键字，替换对应的值 基于AC自动机算法实现，需要被替换的原字符串越大，替换的键值对越多，效率提升越明显

注意: 如果需要被替换的关键字出现交叉,最先匹配中的关键字会被替换 1、"abc","ab" 会优先替换"ab" 2、"abed","be" 会优先替换"abed" 3、"abc", "bc" 会优先替换"abc"

Author:

kyao

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
HighMultiReplacer(Map<String,String> map) 构造

Method Summary

Modifier and Type	Method and Description
CharSequence	apply(CharSequence str) 执行替换，按照StrReplacer.replace(CharSequence, int, StringBuilder)逻辑替换对应部分，其它部分保持原样
static HighMultiReplacer	of(Map<String,String> map) 生成一个HighMultiReplacer对象
protected int	replace(CharSequence str, int pos, StringBuilder out) 抽象的字符串替换方法，通过传入原字符串和当前位置，执行替换逻辑，返回处理或替换的字符串长度部分。

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.UnaryOperator

identity

Methods inherited from interface java.util.function.Function

andThen, compose

Constructor Detail

HighMultiReplacer

public HighMultiReplacer(Map<String,String> map)

构造

Parameters:

map - key为需要被查找的字符串，value为对应的替换的值

Method Detail

of

public static HighMultiReplacer of(Map<String,String> map)

生成一个HighMultiReplacer对象

Parameters:

map - key为需要被查找的字符串，value为对应的替换的值

Returns:

org.dromara.hutool.core.text.replacer.HighMultiReplacer

replace

protected int replace(CharSequence str,
                      int pos,
                      StringBuilder out)

Description copied from class: StrReplacer

抽象的字符串替换方法，通过传入原字符串和当前位置，执行替换逻辑，返回处理或替换的字符串长度部分。

Specified by:

replace in class StrReplacer

Parameters:

str - 被处理的字符串

pos - 当前位置

out - 输出

Returns:

处理的原字符串长度，0表示跳过此字符

apply

public CharSequence apply(CharSequence str)

Description copied from class: StrReplacer

执行替换，按照StrReplacer.replace(CharSequence, int, StringBuilder)逻辑替换对应部分，其它部分保持原样

Specified by:

apply in interface Function<CharSequence,CharSequence>

Overrides:

apply in class StrReplacer

Parameters:

str - 被处理的字符串

Returns:

替换后的字符串