Module de.zabuza.fastcdc4j
Package de.zabuza.fastcdc4j.internal.util

Enum Util

java.lang.Object
java.lang.Enum<Util>
de.zabuza.fastcdc4j.internal.util.Util
All Implemented Interfaces:
java.io.Serializable, java.lang.Comparable<Util>, java.lang.constant.Constable
public enum Util
extends java.lang.Enum<Util>
Collection of various utility methods of no particular topic.
Author:
Daniel Tischner <zabuza.dev@gmail.com>

  • Nested Class Summary

    Nested classes/interfaces inherited from class java.lang.Enum

    java.lang.Enum.EnumDesc<E extends java.lang.Enum<E>>

  • Method Summary

    Modifier and Type Method Description
    static java.lang.String bytesToHex​(byte[] bytes)
    Creates a hexadecimal representation of the given binary data.
    static byte[] hash​(java.lang.String method, byte[] data)
    Hashes the given data using the given method.
    static int log2​(int x)
    Computes the logarithm to the base 2 of the given value.
    static Util valueOf​(java.lang.String name)
    Returns the enum constant of this type with the specified name.
    static Util[] values()
    Returns an array containing the constants of this enum type, in the order they are declared.

    Methods inherited from class java.lang.Enum

    clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

    Methods inherited from class java.lang.Object

    getClass, notify, notifyAll, wait, wait, wait

  • Method Details

    • values

      public static Util[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.
      Returns:
      an array containing the constants of this enum type, in the order they are declared

    • valueOf

      public static Util valueOf​(java.lang.String name)
      Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
      Parameters:
      name - the name of the enum constant to be returned.
      Returns:
      the enum constant with the specified name
      Throws:
      java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
      java.lang.NullPointerException - if the argument is null

    • bytesToHex

      public static java.lang.String bytesToHex​(byte[] bytes)
      Creates a hexadecimal representation of the given binary data.
      Parameters:
      bytes - The binary data to convert, not null
      Returns:
      Hexadecimal representation

    • hash

      public static byte[] hash​(java.lang.String method, byte[] data)
      Hashes the given data using the given method.
      Parameters:
      method - The method to use for hashing, must be supported by MessageDigest, not null
      data - The data to hash, not null
      Returns:
      The computed hash

    • log2

      public static int log2​(int x)
      Computes the logarithm to the base 2 of the given value.
      Parameters:
      x - The value to compute the log2 of, must be positive and not zero
      Returns:
      The log2 of the given value