com.github.bingoohuang.utils.lang

类 Substituters

java.lang.Object

com.github.bingoohuang.utils.lang.Substituters

public abstract class Substituters
extends Object

从PropertyPlaceholderConfigurer.java代码中摘出的字符串变量解析的辅助类。 字符串中变量引用形式： 1) ${variable} 2) ${variable:defaultValue} 3) ${variabl${letter}} Recursive invocation 4) mixed above

作者:

Bingoo Huang

字段概要

字段

限定符和类型	字段和说明
static String	DEF_HOLDER_PREFIX Default Holder prefix: "${" .
static String	DEF_HOLDER_SUFFIX Default Holder suffix: "}".
static int	SYS_PROPS_MODE_FALLBACK Check system properties if not resolvable in the specified properties.
static int	SYS_PROPS_MODE_OVERRIDE Check system properties first, before trying the specified properties.

构造器概要

构造器

构造器和说明
Substituters()

方法概要

限定符和类型	方法和说明
static String	parse(String strVal) Parse the given String value recursively, to be able to resolve nested Holders (when resolved property values in turn contain Holders again).
static String	parse(String strVal, boolean ignoreBadHolders) Parse the given String value recursively, to be able to resolve nested Holders (when resolved property values in turn contain Holders again).
static String	parse(String strVal, Object props) Parse the given String value recursively, to be able to resolve nested Holders (when resolved property values in turn contain Holders again).
static String	parse(String strVal, Object sub, Object props)
static String	parse(String strVal, Object props, Set<String> visitedHolders, boolean ignoreBadHolders) Parse the given String value recursively, to be able to resolve nested Holders (when resolved property values in turn contain Holders again).
static boolean	substringMatch(CharSequence str, int index, CharSequence substring) Test whether the given string matches the given substring at the given index.

从类继承的方法 java.lang.Object

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

字段详细资料

DEF_HOLDER_PREFIX

public static final String DEF_HOLDER_PREFIX

Default Holder prefix: "${" .

另请参阅:

常量字段值

DEF_HOLDER_SUFFIX

public static final String DEF_HOLDER_SUFFIX

Default Holder suffix: "}".

另请参阅:

常量字段值

SYS_PROPS_MODE_FALLBACK

public static final int SYS_PROPS_MODE_FALLBACK

Check system properties if not resolvable in the specified properties. This is the default.

另请参阅:

常量字段值

SYS_PROPS_MODE_OVERRIDE

public static final int SYS_PROPS_MODE_OVERRIDE

Check system properties first, before trying the specified properties. This allows system properties to override any other property source.

另请参阅:

常量字段值

构造器详细资料

Substituters

public Substituters()

方法详细资料

parse

public static String parse(String strVal)

Parse the given String value recursively, to be able to resolve nested Holders (when resolved property values in turn contain Holders again).

参数:

strVal - the String value to parse

返回:

进行值填充后的字符串

parse

public static String parse(String strVal,
                           Object props)

Parse the given String value recursively, to be able to resolve nested Holders (when resolved property values in turn contain Holders again).

参数:

strVal - the String value to parse

props - the Properties to resolve Holders against

返回:

进行值填充后的字符串

parse

public static String parse(String strVal,
                           Object sub,
                           Object props)

parse

public static String parse(String strVal,
                           boolean ignoreBadHolders)

Parse the given String value recursively, to be able to resolve nested Holders (when resolved property values in turn contain Holders again).

参数:

strVal - the String value to parse

ignoreBadHolders - 是否忽略没有的占位符号

返回:

进行值填充后的字符串

parse

public static String parse(String strVal,
                           Object props,
                           Set<String> visitedHolders,
                           boolean ignoreBadHolders)

Parse the given String value recursively, to be able to resolve nested Holders (when resolved property values in turn contain Holders again).

参数:

strVal - the String value to parse

props - the Properties to resolve Holders against

visitedHolders - the Holders that have already been visited

ignoreBadHolders - during the current resolution attempt (used to detect circular references between Holders). Only non-null if we're parsing a nested Holder.

返回:

进行值填充后的字符串

substringMatch

public static boolean substringMatch(CharSequence str,
                                     int index,
                                     CharSequence substring)

Test whether the given string matches the given substring at the given index.

参数:

str - the original string (or StringBuffer)

index - the index in the original string to start matching against

substring - the substring to match at the given index

返回:

true/false