Package software.amazon.smithy.utils

Class CaseUtils

java.lang.Object
software.amazon.smithy.utils.CaseUtils
public final class CaseUtils extends Object
Provides support for camelCase, snake_case, and other kinds of case conversions.

  • Method Summary

    Modifier and Type
    Method
    Description
    static String
    snakeToCamelCase(String str)
    Converts all the delimiter separated words in a String into camelCase, that is each word is made up of a titlecase character and then a series of lowercase characters.
    static String
    snakeToPascalCase(String str)
    Converts all words separated by "_" into PascalCase, that is each word is made up of a titlecase character and then a series of lowercase characters.
    static String
    toCamelCase(String str)
    Converts all words separated by " ", "-", and "_" to CamelCase.
    static String
    toCamelCase(String str, boolean capitalizeFirstLetter, char... delimiters)
    Converts all the delimiter separated words in a String into camelCase, that is each word is made up of a titlecase character and then a series of lowercase characters.
    static String
    toPascalCase(String str)
    Converts all words separated by " ", "-", and "_" to CamelCase.
    static String
    toSnakeCase(String word)
    Convert a given word to snake_case with all lowercase letters.

    Methods inherited from class java.lang.Object

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

  • Method Details

    • snakeToPascalCase

      public static String snakeToPascalCase(String str)

      Converts all words separated by "_" into PascalCase, that is each word is made up of a titlecase character and then a series of lowercase characters.

      PacalCase is just like CamelCase, except the first character is an uppercase letter.

      Parameters:
      str - the String to be converted to PascalCase, may be null
      Returns:
      camelCase of String, null if null String input

    • snakeToCamelCase

      public static String snakeToCamelCase(String str)

      Converts all the delimiter separated words in a String into camelCase, that is each word is made up of a titlecase character and then a series of lowercase characters.

      The first character is always converted to lowercase.

      Parameters:
      str - the String to be converted to camelCase, may be null
      Returns:
      camelCase of String, null if null String input

    • toCamelCase

      public static String toCamelCase(String str)

      Converts all words separated by " ", "-", and "_" to CamelCase.

      The first character is always converted to lowercase.

      Parameters:
      str - the String to be converted to camelCase, may be null
      Returns:
      camelCase of String, null if null String input

    • toPascalCase

      public static String toPascalCase(String str)

      Converts all words separated by " ", "-", and "_" to CamelCase.

      PacalCase is just like CamelCase, except the first character is an uppercase letter.

      Parameters:
      str - the String to be converted to PascalCase, may be null
      Returns:
      camelCase of String, null if null String input

    • toCamelCase

      public static String toCamelCase(String str, boolean capitalizeFirstLetter, char... delimiters)

      Converts all the delimiter separated words in a String into camelCase, that is each word is made up of a titlecase character and then a series of lowercase characters.

      The delimiters represent a set of characters understood to separate words. The first non-delimiter character after a delimiter will be capitalized. The first String character may or may not be capitalized and it's determined by the user input for capitalizeFirstLetter variable.

      A null input String returns null. Capitalization uses the Unicode title case, normally equivalent to upper case and cannot perform locale-sensitive mappings.

       CaseUtils.toCamelCase(null, false)                                 = null
 CaseUtils.toCamelCase("", false, *)                                = ""
 CaseUtils.toCamelCase(*, false, null)                              = *
 CaseUtils.toCamelCase(*, true, new char[0])                        = *
 CaseUtils.toCamelCase("To.Camel.Case", false, new char[]{'.'})     = "toCamelCase"
 CaseUtils.toCamelCase(" to @ Camel case", true, new char[]{'@'})   = "ToCamelCase"
 CaseUtils.toCamelCase(" @to @ Camel case", false, new char[]{'@'}) = "toCamelCase"
      Parameters:
      str - the String to be converted to camelCase, may be null
      capitalizeFirstLetter - boolean that determines if the first character of first word should be title case.
      delimiters - set of characters to determine capitalization, null and/or empty array means whitespace
      Returns:
      camelCase of String, null if null String input
      See Also:

    • toSnakeCase

      public static String toSnakeCase(String word)
      Convert a given word to snake_case with all lowercase letters.

      This method was based on Elephant Bird's underscore method. "-", " ", "\n", "\t", "\r" are replaced with "_".

      Note: this method does not sanitize the string for use as a snake_case variable in any specific programming language.

      Parameters:
      word - The word to convert.
      Returns:
      The underscored version of the word
      See Also: