Package org.apache.ws.commons.util

Class Base64.Decoder

  • Enclosing class:
    Base64
    public abstract static class Base64.Decoder
extends java.lang.Object
    An encoder is an object, which is able to decode char arrays in blocks of four bytes. Any such block is converted into a array of three bytes.

    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      protected Decoder​(int pBufLen)
      Creates a new instance.

    • Method Summary

      All Methods Instance Methods Abstract Methods Concrete Methods 
      Modifier and Type Method Description
      void flush()
      Indicates, that no more data is being expected.
      void write​(char[] pData, int pOffset, int pLen)
      Converts the Base64 encoded character array.
      protected abstract void writeBuffer​(byte[] pBuffer, int pOffset, int pLen)
      Called for writing the decoded bytes to the destination.

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • byteBuffer

        private final byte[] byteBuffer

      • byteBufferOffset

        private int byteBufferOffset

      • num

        private int num

      • numBytes

        private int numBytes

      • eofBytes

        private int eofBytes

    • Constructor Detail

      • Decoder

        protected Decoder​(int pBufLen)
        Creates a new instance.
        Parameters:
        pBufLen - The decoders buffer size. The decoder will store up to this number of decoded bytes before invoking writeBuffer(byte[],int,int).

    • Method Detail

      • writeBuffer

        protected abstract void writeBuffer​(byte[] pBuffer,
                                    int pOffset,
                                    int pLen)
                             throws java.io.IOException
        Called for writing the decoded bytes to the destination.
        Parameters:
        pBuffer - The byte array being written.
        pOffset - Offset of the first byte being written.
        pLen - Number of bytes being written.
        Throws:
        java.io.IOException - Writing to the destination failed.

      • write

        public void write​(char[] pData,
                  int pOffset,
                  int pLen)
           throws java.io.IOException
        Converts the Base64 encoded character array.
        Parameters:
        pData - The character array being decoded.
        pOffset - Offset of first character being decoded.
        pLen - Number of characters being decoded.
        Throws:
        Base64.DecodingException - Decoding failed.
        java.io.IOException - An invocation of the writeBuffer(byte[],int,int) method failed.