Class Base64

java.lang.Object
com.google.api.client.util.Base64

public class Base64 extends Object
Proxy for version 1.6 (or newer) of the Apache Commons Codec Base64 implementation.

This is needed in order to support platforms like Android which already include an older version of the Apache Commons Codec (Android includes version 1.3). To avoid a dependency library conflict, this library includes a reduced private copy of version 1.6 (or newer) of the Apache Commons Codec (using a tool like jarjar).

Since:
1.8
  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    private
     
  • Method Summary

    Modifier and Type
    Method
    Description
    static byte[]
    decodeBase64(byte[] base64Data)
    Decodes Base64 data into octets.
    static byte[]
    decodeBase64(String base64String)
    Decodes a Base64 String into octets.
    static byte[]
    encodeBase64(byte[] binaryData)
    Encodes binary data using the base64 algorithm but does not chunk the output.
    static String
    encodeBase64String(byte[] binaryData)
    Encodes binary data using the base64 algorithm but does not chunk the output.
    static byte[]
    encodeBase64URLSafe(byte[] binaryData)
    Encodes binary data using a URL-safe variation of the base64 algorithm but does not chunk the output.
    static String
    encodeBase64URLSafeString(byte[] binaryData)
    Encodes binary data using a URL-safe variation of the base64 algorithm but does not chunk the output.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  • Constructor Details

    • Base64

      private Base64()
  • Method Details

    • encodeBase64

      public static byte[] encodeBase64(byte[] binaryData)
      Encodes binary data using the base64 algorithm but does not chunk the output.
      Parameters:
      binaryData - binary data to encode or null for null result
      Returns:
      byte[] containing Base64 characters in their UTF-8 representation or null for null input
      See Also:
      • Base64.encodeBase64(byte[])
    • encodeBase64String

      public static String encodeBase64String(byte[] binaryData)
      Encodes binary data using the base64 algorithm but does not chunk the output.
      Parameters:
      binaryData - binary data to encode or null for null result
      Returns:
      String containing Base64 characters or null for null input
      See Also:
      • Base64.encodeBase64String(byte[])
    • encodeBase64URLSafe

      public static byte[] encodeBase64URLSafe(byte[] binaryData)
      Encodes binary data using a URL-safe variation of the base64 algorithm but does not chunk the output. The url-safe variation emits - and _ instead of + and / characters.
      Parameters:
      binaryData - binary data to encode or null for null result
      Returns:
      byte[] containing Base64 characters in their UTF-8 representation or null for null input
      See Also:
      • Base64.encodeBase64URLSafe(byte[])
    • encodeBase64URLSafeString

      public static String encodeBase64URLSafeString(byte[] binaryData)
      Encodes binary data using a URL-safe variation of the base64 algorithm but does not chunk the output. The url-safe variation emits - and _ instead of + and / characters.
      Parameters:
      binaryData - binary data to encode or null for null result
      Returns:
      String containing Base64 characters or null for null input
      See Also:
      • Base64.encodeBase64URLSafeString(byte[])
    • decodeBase64

      public static byte[] decodeBase64(byte[] base64Data)
      Decodes Base64 data into octets.
      Parameters:
      base64Data - Byte array containing Base64 data or null for null result
      Returns:
      Array containing decoded data or null for null input
      See Also:
      • Base64.decodeBase64(byte[])
    • decodeBase64

      public static byte[] decodeBase64(String base64String)
      Decodes a Base64 String into octets.
      Parameters:
      base64String - String containing Base64 data or null for null result
      Returns:
      Array containing decoded data or null for null input
      See Also:
      • Base64.decodeBase64(String)