com.microsoft.azure.kusto.data

Class StringUtils

java.lang.Object

com.microsoft.azure.kusto.data.StringUtils

public class StringUtils
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static String	EMPTY

Method Summary

Modifier and Type	Method and Description
static @Nullable String	appendIfMissing(String str, CharSequence suffix, CharSequence... suffixes) Appends the suffix to the end of the string if the string does not already end with any of the suffixes.
static @Nullable String	chop(String str) Removes the last character from a string.
static boolean	endsWithIgnoreCase(CharSequence str, CharSequence suffix) Case-insensitive check if a CharSequence ends with a specified suffix.
static @NotNull String	getStringTail(String val, int minRuleLength)
static boolean	isBlank(CharSequence cs) Checks if a CharSequence is empty (""), null or whitespace only.
static boolean	isEmpty(CharSequence cs) Checks if a CharSequence is empty (""), null or not.
static boolean	isNotBlank(CharSequence cs) Checks if a CharSequence is not empty (""), not null and not whitespace only.
static String	normalizeEntityName(String name)
static String	prependIfMissing(String str, String prefix) Prepends a prefix to a string if it doesn't already start with it.
static String	removeEndIgnoreCase(String str, String remove) Removes a substring from the end of a string (case insensitive).
static @Nullable String	unescapeJava(String str) Unescapes Java string escape sequences in the input string.

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY

public static final String EMPTY

See Also:

Constant Field Values

Method Detail

getStringTail

@NotNull
public static @NotNull String getStringTail(String val,
                                                     int minRuleLength)

normalizeEntityName

public static String normalizeEntityName(String name)

isEmpty

public static boolean isEmpty(CharSequence cs)

Checks if a CharSequence is empty (""), null or not.

Parameters:

cs - The CharSequence to check, may be null

Returns:

true if the CharSequence is empty or null

isBlank

public static boolean isBlank(CharSequence cs)

Checks if a CharSequence is empty (""), null or whitespace only. Whitespace is defined by Character.isWhitespace(char).

Parameters:

cs - the CharSequence to check, may be null

Returns:

true if the CharSequence is empty or null or whitespace only

isNotBlank

public static boolean isNotBlank(CharSequence cs)

Checks if a CharSequence is not empty (""), not null and not whitespace only. Whitespace is defined by Character.isWhitespace(char).

Parameters:

cs - the CharSequence to check, may be null

Returns:

true if the CharSequence is not empty and not null and not whitespace only

chop

@Nullable
public static @Nullable String chop(String str)

Removes the last character from a string.

Parameters:

str - the string to chop

Returns:

the string with the last character removed, or null if null string input

removeEndIgnoreCase

public static String removeEndIgnoreCase(String str,
                                         String remove)

Removes a substring from the end of a string (case insensitive).

Parameters:

str - the string to process

remove - the substring to remove from the end

Returns:

the string with the suffix removed

prependIfMissing

public static String prependIfMissing(String str,
                                      String prefix)

Prepends a prefix to a string if it doesn't already start with it.

Parameters:

str - the string to process

prefix - the prefix to prepend

Returns:

the string with the prefix prepended if it wasn't already there

appendIfMissing

@Nullable
public static @Nullable String appendIfMissing(String str,
                                                         CharSequence suffix,
                                                         CharSequence... suffixes)

Appends the suffix to the end of the string if the string does not already end with any of the suffixes.

Parameters:

str - the string to process

suffix - the suffix to append to the end of the string

suffixes - additional suffixes that are valid terminators

Returns:

a new String if suffix was appended, the same string otherwise

endsWithIgnoreCase

public static boolean endsWithIgnoreCase(CharSequence str,
                                         CharSequence suffix)

Case-insensitive check if a CharSequence ends with a specified suffix. nulls are handled without exceptions. Two null references are considered to be equal. The comparison is case-insensitive.

Parameters:

str - the CharSequence to check, may be null

suffix - the suffix to find, may be null

Returns:

true if the CharSequence ends with the suffix, case-insensitive, or both null

unescapeJava

@Nullable
public static @Nullable String unescapeJava(String str)

Unescapes Java string escape sequences in the input string. This method provides custom implementation to replace Apache Commons Text StringEscapeUtils.unescapeJava() method with exactly the same behavior. Supported escape sequences:

• \\ -> \
• \" -> "
• \' -> '
• \n -> newline
• \r -> carriage return
• \t -> tab
• \b -> backspace
• \f -> form feed
• \XXXX -> Unicode character (where XXXX is a 4-digit hex number)
• \XXX -> Octal character (where XXX is 1-3 octal digits)

Parameters:

str - the string to unescape, may be null

Returns:

the unescaped string, or null if input was null