Package org.apache.commons.exec.util
Class StringUtils
- java.lang.Object
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- org.apache.commons.exec.util.StringUtils
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public class StringUtils extends Object
Supplement of commons-lang, the stringSubstitution() was in a simpler implementation available in an older commons-lang implementation. This class is not part of the public API and could change without warning.- Version:
- $Id: StringUtils.java 1636204 2014-11-02 22:30:31Z ggregory $
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Constructor Summary
Constructors Constructor Description StringUtils()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static String
fixFileSeparatorChar(String arg)
Fixes the file separator char for the target platform using the following replacement.static boolean
isQuoted(String argument)
Determines if this is a quoted argument - either single or double quoted.static String
quoteArgument(String argument)
Put quotes around the given String if necessary.static String[]
split(String input, String splitChar)
Split a string into an array of strings based on a separator.static StringBuffer
stringSubstitution(String argStr, Map<? super String,?> vars, boolean isLenient)
Perform a series of substitutions.static String
toString(String[] strings, String separator)
Concatenates an array of string using a separator.
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Method Detail
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stringSubstitution
public static StringBuffer stringSubstitution(String argStr, Map<? super String,?> vars, boolean isLenient)
Perform a series of substitutions.The substitutions are performed by replacing ${variable} in the target string with the value of provided by the key "variable" in the provided hash table.
A key consists of the following characters:
- letter
- digit
- dot character
- hyphen character
- plus character
- underscore character
- Parameters:
argStr
- the argument string to be processedvars
- name/value pairs used for substitutionisLenient
- ignore a key not found in vars or throw a RuntimeException?- Returns:
- String target string with replacements.
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split
public static String[] split(String input, String splitChar)
Split a string into an array of strings based on a separator.- Parameters:
input
- what to splitsplitChar
- what to split on- Returns:
- the array of strings
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fixFileSeparatorChar
public static String fixFileSeparatorChar(String arg)
Fixes the file separator char for the target platform using the following replacement.- '/' → File.separatorChar
- '\\' → File.separatorChar
- Parameters:
arg
- the argument to fix- Returns:
- the transformed argument
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toString
public static String toString(String[] strings, String separator)
Concatenates an array of string using a separator.- Parameters:
strings
- the strings to concatenateseparator
- the separator between two strings- Returns:
- the concatenated strings
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quoteArgument
public static String quoteArgument(String argument)
Put quotes around the given String if necessary.If the argument doesn't include spaces or quotes, return it as is. If it contains double quotes, use single quotes - else surround the argument by double quotes.
- Parameters:
argument
- the argument to be quoted- Returns:
- the quoted argument
- Throws:
IllegalArgumentException
- If argument contains both types of quotes
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isQuoted
public static boolean isQuoted(String argument)
Determines if this is a quoted argument - either single or double quoted.- Parameters:
argument
- the argument to check- Returns:
- true when the argument is quoted
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