Class StringUtils
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Field Summary
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionstatic Stringcapitalize(String str) Borrowed from commons-langStringUtils.capitalize()method.static intcompareIgnoreCase(String a, String b) Compare two strings, ignoring case.static intcompareWithCase(String a, String b) Compare two strings, honoring case.static booleanequalsIgnoreCase(String a, String b) Test if two strings are equal, ignoring case.static StringformatWithSuffix(long value) Formats an integral value as a decimal number with 'k', 'm', or 'g' suffix if it is an exact multiple of 1024, otherwise returns the value representation as a decimal number without suffix.static booleanisEmptyOrNull(String stringValue) Test if a string is empty or null.static Stringjoin(Collection<String> parts, String separator) Join a collection of Strings together using the specified separator.static Stringjoin(Collection<String> parts, String separator, String lastSeparator) Join a collection of Strings together using the specified separator and a lastSeparator which is used for joining the second last and the last part.static StringnameWithDotGit(String name) AppendsConstants.DOT_GIT_EXTunless the given name already ends with that suffix.static intparseIntWithSuffix(String value, boolean positiveOnly) Parses a number with optional case-insensitive suffix 'k', 'm', or 'g' indicating KiB, MiB, and GiB, respectively.static longparseLongWithSuffix(String value, boolean positiveOnly) Parses a number with optional case-insensitive suffix 'k', 'm', or 'g' indicating KiB, MiB, and GiB, respectively.static StringReplace CRLF, CR or LF with a single space.static booleanParse a string as a standard Git boolean value.static BooleantoBooleanOrNull(String stringValue) Parse a string as a standard Git boolean value.static chartoLowerCase(char c) Convert the input to lowercase.static StringtoLowerCase(String in) Convert the input string to lower case, according to the "C" locale.
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Field Details
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KiB
private static final long KiB- See Also:
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MiB
private static final long MiB- See Also:
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GiB
private static final long GiB- See Also:
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LC
private static final char[] LC
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Constructor Details
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StringUtils
private StringUtils()
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Method Details
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toLowerCase
public static char toLowerCase(char c) Convert the input to lowercase.This method does not honor the JVM locale, but instead always behaves as though it is in the US-ASCII locale. Only characters in the range 'A' through 'Z' are converted. All other characters are left as-is, even if they otherwise would have a lowercase character equivalent.
- Parameters:
c- the input character.- Returns:
- lowercase version of the input.
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toLowerCase
Convert the input string to lower case, according to the "C" locale.This method does not honor the JVM locale, but instead always behaves as though it is in the US-ASCII locale. Only characters in the range 'A' through 'Z' are converted, all other characters are left as-is, even if they otherwise would have a lowercase character equivalent.
- Parameters:
in- the input string. Must not be null.- Returns:
- a copy of the input string, after converting characters in the range 'A'..'Z' to 'a'..'z'.
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capitalize
Borrowed from commons-langStringUtils.capitalize()method.Capitalizes a String changing the first letter to title case as per
Character.toTitleCase(char). No other letters are changed.A
nullinput String returnsnull.- Parameters:
str- the String to capitalize, may be null- Returns:
- the capitalized String,
nullif null String input - Since:
- 4.0
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equalsIgnoreCase
Test if two strings are equal, ignoring case.This method does not honor the JVM locale, but instead always behaves as though it is in the US-ASCII locale.
- Parameters:
a- first string to compare.b- second string to compare.- Returns:
- true if a equals b
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compareIgnoreCase
Compare two strings, ignoring case.This method does not honor the JVM locale, but instead always behaves as though it is in the US-ASCII locale.
- Parameters:
a- first string to compare.b- second string to compare.- Returns:
- an int.
- Since:
- 2.0
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compareWithCase
Compare two strings, honoring case.This method does not honor the JVM locale, but instead always behaves as though it is in the US-ASCII locale.
- Parameters:
a- first string to compare.b- second string to compare.- Returns:
- an int.
- Since:
- 2.0
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toBoolean
Parse a string as a standard Git boolean value. SeetoBooleanOrNull(String).- Parameters:
stringValue- the string to parse.- Returns:
- the boolean interpretation of
value. - Throws:
IllegalArgumentException- ifvalueis not recognized as one of the standard boolean names.
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toBooleanOrNull
Parse a string as a standard Git boolean value.The terms
yes,true,1,oncan all be used to meantrue.The terms
no,false,0,offcan all be used to meanfalse.Comparisons ignore case, via
equalsIgnoreCase(String, String).- Parameters:
stringValue- the string to parse.- Returns:
- the boolean interpretation of
valueor null in case the string does not represent a boolean value
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join
Join a collection of Strings together using the specified separator.- Parameters:
parts- Strings to joinseparator- used to join- Returns:
- a String with all the joined parts
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join
Join a collection of Strings together using the specified separator and a lastSeparator which is used for joining the second last and the last part.- Parameters:
parts- Strings to joinseparator- separator used to join all but the two last elementslastSeparator- separator to use for joining the last two elements- Returns:
- a String with all the joined parts
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nameWithDotGit
AppendsConstants.DOT_GIT_EXTunless the given name already ends with that suffix.- Parameters:
name- to complete- Returns:
- the name ending with
Constants.DOT_GIT_EXT - Since:
- 6.1
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isEmptyOrNull
Test if a string is empty or null.- Parameters:
stringValue- the string to check- Returns:
trueif the string isnullor empty
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replaceLineBreaksWithSpace
Replace CRLF, CR or LF with a single space.- Parameters:
in- A string with line breaks- Returns:
- in without line breaks
- Since:
- 3.1
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parseLongWithSuffix
public static long parseLongWithSuffix(@NonNull String value, boolean positiveOnly) throws NumberFormatException, StringIndexOutOfBoundsException Parses a number with optional case-insensitive suffix 'k', 'm', or 'g' indicating KiB, MiB, and GiB, respectively. The suffix may follow the number with optional separation by one or more blanks.- Parameters:
value-Stringto parse; with leading and trailing whitespace ignoredpositiveOnly-trueto only accept positive numbers,falseto allow negative numbers, too- Returns:
- the value parsed
- Throws:
NumberFormatException- if the is not parseable, or beyond the range ofLongStringIndexOutOfBoundsException- if the string is empty or contains only whitespace, or contains only the letter 'k', 'm', or 'g'- Since:
- 6.0
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parseIntWithSuffix
public static int parseIntWithSuffix(@NonNull String value, boolean positiveOnly) throws NumberFormatException, StringIndexOutOfBoundsException Parses a number with optional case-insensitive suffix 'k', 'm', or 'g' indicating KiB, MiB, and GiB, respectively. The suffix may follow the number with optional separation by blanks.- Parameters:
value-Stringto parse; with leading and trailing whitespace ignoredpositiveOnly-trueto only accept positive numbers,falseto allow negative numbers, too- Returns:
- the value parsed
- Throws:
NumberFormatException- if the is not parseable or beyond the range ofIntegerStringIndexOutOfBoundsException- if the string is empty or contains only whitespace, or contains only the letter 'k', 'm', or 'g'- Since:
- 6.0
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formatWithSuffix
Formats an integral value as a decimal number with 'k', 'm', or 'g' suffix if it is an exact multiple of 1024, otherwise returns the value representation as a decimal number without suffix.- Parameters:
value- Value to format- Returns:
- the value's String representation
- Since:
- 6.0
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