Package com.sun.mail.util

Class BASE64EncoderStream

java.lang.Object
java.io.OutputStream
java.io.FilterOutputStream
com.sun.mail.util.BASE64EncoderStream
All Implemented Interfaces:
Closeable, Flushable, AutoCloseable
Direct Known Subclasses:
BEncoderStream
public class BASE64EncoderStream extends FilterOutputStream
This class implements a BASE64 encoder. It is implemented as a FilterOutputStream, so one can just wrap this class around any output stream and write bytes into this filter. The encoding is done as the bytes are written out.
Author:
John Mani, Bill Shannon

  • Field Summary

    Fields inherited from class java.io.FilterOutputStream

    out

  • Constructor Summary

    Constructors
    Constructor
    Description
    BASE64EncoderStream(OutputStream out)
    Create a BASE64 encoder that encodes the specified input stream.
    BASE64EncoderStream(OutputStream out, int bytesPerLine)
    Create a BASE64 encoder that encodes the specified output stream.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    close()
    Forces any buffered output bytes to be encoded out to the stream and closes this output stream
    void
    flush()
    Flushes this output stream and forces any buffered output bytes to be encoded out to the stream.
    void
    write(byte[] b)
    Encodes b.length bytes to this output stream.
    void
    write(byte[] b, int off, int len)
    Encodes len bytes from the specified byte array starting at offset off to this output stream.
    void
    write(int c)
    Encodes the specified byte to this output stream.

    Methods inherited from class java.io.OutputStream

    nullOutputStream

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • BASE64EncoderStream

      public BASE64EncoderStream(OutputStream out, int bytesPerLine)
      Create a BASE64 encoder that encodes the specified output stream.
      Parameters:
      out - the output stream
      bytesPerLine - number of bytes per line. The encoder inserts a CRLF sequence after the specified number of bytes, unless bytesPerLine is Integer.MAX_VALUE, in which case no CRLF is inserted. bytesPerLine is rounded down to a multiple of 4.

    • BASE64EncoderStream

      public BASE64EncoderStream(OutputStream out)
      Create a BASE64 encoder that encodes the specified input stream. Inserts the CRLF sequence after outputting 76 bytes.
      Parameters:
      out - the output stream

  • Method Details

    • write

      public void write(byte[] b, int off, int len) throws IOException
      Encodes len bytes from the specified byte array starting at offset off to this output stream.
      Overrides:
      write in class FilterOutputStream
      Parameters:
      b - the data.
      off - the start offset in the data.
      len - the number of bytes to write.
      Throws:
      IOException - if an I/O error occurs.

    • write

      public void write(byte[] b) throws IOException
      Encodes b.length bytes to this output stream.
      Overrides:
      write in class FilterOutputStream
      Parameters:
      b - the data to be written.
      Throws:
      IOException - if an I/O error occurs.

    • write

      public void write(int c) throws IOException
      Encodes the specified byte to this output stream.
      Overrides:
      write in class FilterOutputStream
      Parameters:
      c - the byte.
      Throws:
      IOException - if an I/O error occurs.

    • flush

      public void flush() throws IOException
      Flushes this output stream and forces any buffered output bytes to be encoded out to the stream.
      Specified by:
      flush in interface Flushable
      Overrides:
      flush in class FilterOutputStream
      Throws:
      IOException - if an I/O error occurs.

    • close

      public void close() throws IOException
      Forces any buffered output bytes to be encoded out to the stream and closes this output stream
      Specified by:
      close in interface AutoCloseable
      Specified by:
      close in interface Closeable
      Overrides:
      close in class FilterOutputStream
      Throws:
      IOException