Package io.micrometer.core.instrument.util

Class StringUtils

java.lang.Object
io.micrometer.core.instrument.util.StringUtils
public final class StringUtils
extends java.lang.Object
Utilities for String.

  • Method Summary

    Modifier and Type Method Description
    static boolean isBlank​(java.lang.String string)
    Check if the String is null or has only whitespaces.
    static boolean isEmpty​(java.lang.String string)
    Check if the String is null or empty.
    static boolean isNotBlank​(java.lang.String string)
    Check if the String has any non-whitespace character.
    static boolean isNotEmpty​(java.lang.String string)
    Check if the String has any character.
    static java.lang.String truncate​(java.lang.String string, int maxLength)
    Truncate the String to the max length.

    Methods inherited from class java.lang.Object

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

  • Method Details

    • isBlank

      public static boolean isBlank​(@Nullable java.lang.String string)
      Check if the String is null or has only whitespaces. Modified from StringUtils.isBlank(String).
      Parameters:
      string - String to check
      Returns:
      true if the String is null or has only whitespaces

    • isNotBlank

      public static boolean isNotBlank​(@Nullable java.lang.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

      public static boolean isEmpty​(@Nullable java.lang.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

      public static boolean isNotEmpty​(@Nullable java.lang.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 java.lang.String truncate​(java.lang.String string, int maxLength)
      Truncate the String to the max length.
      Parameters:
      string - String to truncate
      maxLength - max length
      Returns:
      truncated String