StringUtils (Jackrabbit Oak 1.81-SNAPSHOT API)

java.lang.Object

org.apache.jackrabbit.oak.commons.StringUtils

public class StringUtils extends Object

Some string utility methods.

Method Summary

Modifier and Type

Method

Description

static @NotNull String

convertBytesToHex(@org.jetbrains.annotations.NotNull byte[] value)

Convert a byte array to a hex encoded string.

static @org.jetbrains.annotations.NotNull byte[]

convertHexToBytes(@NotNull String s)

Convert a hex encoded string to a byte array.

static String

emptyToNull(@Nullable String string)

Returns the string if it is not empty, or null otherwise.

static int

estimateMemoryUsage(String s)

Estimates the memory usage of the given string.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details
- convertBytesToHex
  
  @NotNull public static @NotNull String convertBytesToHex(@NotNull @org.jetbrains.annotations.NotNull byte[] value)
  
  Convert a byte array to a hex encoded string.
  
  Parameters:
  
  value - the byte array
  
  Returns:
  
  the hex encoded string
- convertHexToBytes
  
  @NotNull public static @org.jetbrains.annotations.NotNull byte[] convertHexToBytes(@NotNull @NotNull String s)
  
  Convert a hex encoded string to a byte array.
  
  Parameters:
  
  s - the hex encoded string
  
  Returns:
  
  the byte array
- estimateMemoryUsage
  
  public static int estimateMemoryUsage(String s)
  
  Estimates the memory usage of the given string.
  
  Parameters:
  
  s - the string to estimate.
  
  Returns:
  
  the estimated memory usage.
- emptyToNull
  
  public static String emptyToNull(@Nullable @Nullable String string)
  
  Returns the string if it is not empty, or null otherwise.
  
  Parameters:
  
  string - the string to test and possibly return, may be null
  
  Returns:
  
  the input string if it is not empty, or null if the input string is null or empty