Class Base64


  • public class Base64
    extends Object
    Provides Base64 encoding and decoding as defined by RFC 2045.

    This class implements section 6.8. Base64 Content-Transfer-Encoding from RFC 2045 Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message Bodies by Freed and Borenstein.

    Since:
    1.0-dev
    Author:
    Apache Software Foundation
    See Also:
    RFC 2045
    • Constructor Summary

      Constructors 
      Constructor Description
      Base64()  
    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      byte[] decode​(byte[] pArray)
      Decodes a byte[] containing containing characters in the Base64 alphabet.
      static byte[] decodeBase64​(byte[] base64Data)
      Decodes Base64 data into octects
      byte[] encode​(byte[] pArray)
      Encodes a byte[] containing binary data, into a byte[] containing characters in the Base64 alphabet.
      static byte[] encodeBase64​(byte[] binaryData)
      Encodes binary data using the base64 algorithm but does not chunk the output.
      static byte[] encodeBase64​(byte[] binaryData, boolean isChunked)
      Encodes binary data using the base64 algorithm, optionally chunking the output into 76 character blocks.
      static byte[] encodeBase64Chunked​(byte[] binaryData)
      Encodes binary data using the base64 algorithm and chunks the encoded output into 76 character blocks
      static boolean isArrayByteBase64​(byte[] arrayOctect)
      Tests a given byte array to see if it contains only valid characters within the Base64 alphabet.
    • Constructor Detail

      • Base64

        public Base64()
    • Method Detail

      • isArrayByteBase64

        public static boolean isArrayByteBase64​(byte[] arrayOctect)
        Tests a given byte array to see if it contains only valid characters within the Base64 alphabet.
        Parameters:
        arrayOctect - byte array to test
        Returns:
        true if all bytes are valid characters in the Base64 alphabet or if the byte array is empty; false, otherwise
      • 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
        Returns:
        Base64 characters
      • encodeBase64Chunked

        public static byte[] encodeBase64Chunked​(byte[] binaryData)
        Encodes binary data using the base64 algorithm and chunks the encoded output into 76 character blocks
        Parameters:
        binaryData - binary data to encode
        Returns:
        Base64 characters chunked in 76 character blocks
      • decode

        public byte[] decode​(byte[] pArray)
        Decodes a byte[] containing containing characters in the Base64 alphabet.
        Parameters:
        pArray - A byte array containing Base64 character data
        Returns:
        a byte array containing binary data
      • encodeBase64

        public static byte[] encodeBase64​(byte[] binaryData,
                                          boolean isChunked)
        Encodes binary data using the base64 algorithm, optionally chunking the output into 76 character blocks.
        Parameters:
        binaryData - Array containing binary data to encode.
        isChunked - if true this encoder will chunk the base64 output into 76 character blocks
        Returns:
        Base64-encoded data.
      • decodeBase64

        public static byte[] decodeBase64​(byte[] base64Data)
        Decodes Base64 data into octects
        Parameters:
        base64Data - Byte array containing Base64 data
        Returns:
        Array containing decoded data.
      • encode

        public byte[] encode​(byte[] pArray)
        Encodes a byte[] containing binary data, into a byte[] containing characters in the Base64 alphabet.
        Parameters:
        pArray - a byte array containing binary data
        Returns:
        A byte array containing only Base64 character data