Class StringUtils

java.lang.Object

io.micrometer.common.util.StringUtils

public final class StringUtils
extends Object

Utilities for String.

Method Summary

Modifier and Type	Method	Description
static boolean	isBlank(@Nullable String string)	Check if the String is null or has only whitespaces.
static boolean	isEmpty(@Nullable String string)	Check if the String is null or empty.
static boolean	isNotBlank(@Nullable String string)	Check if the String has any non-whitespace character.
static boolean	isNotEmpty(@Nullable String string)	Check if the String has any character.
static String	truncate(String string, int maxLength)	Truncate the String to the max length.
static String	truncate(String string, int maxLength, String truncationIndicator)	Truncate the String to the max length and append string to indicate if truncation was applied

Methods inherited from class Object

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

Method Details

isBlank

@Contract("null -> true")
public static boolean isBlank(@Nullable String string)

Check if the String is null or has only whitespaces. Modified from org.apache.commons.lang.StringUtils#isBlank(String).

Parameters:

string - String to check

Returns:

true if the String is null or has only whitespaces

isNotBlank

@Contract("null -> false")
public static boolean isNotBlank(@Nullable String string)

Check if the String has any non-whitespace character.

Parameters:

string - String to check

Returns:

true if the String has any non-whitespace character

isEmpty

@Contract("null -> true")
public static boolean isEmpty(@Nullable String string)

Check if the String is null or empty.

Parameters:

string - String to check

Returns:

true if the String is null or empty

isNotEmpty

@Contract("null -> false")
public static boolean isNotEmpty(@Nullable String string)

Check if the String has any character.

Parameters:

string - String to check

Returns:

true if the String has any character

Since:

1.1.0

truncate

public static String truncate(String string,
 int maxLength)

Truncate the String to the max length.

Parameters:

string - String to truncate

maxLength - max length

Returns:

truncated String

truncate

public static String truncate(String string,
 int maxLength,
 String truncationIndicator)

Truncate the String to the max length and append string to indicate if truncation was applied

Parameters:

string - String to truncate

maxLength - max length, which includes the length required for truncationIndicator

truncationIndicator - A string that is appended if string is truncated

Returns:

truncated String