Package com.sun.mail.util

Class QPEncoderStream

java.lang.Object

java.io.OutputStream

java.io.FilterOutputStream

com.sun.mail.util.QPEncoderStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

Direct Known Subclasses:

QEncoderStream

public class QPEncoderStream
extends FilterOutputStream

This class implements a Quoted Printable 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

Field Summary

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

Constructors

Constructor	Description
QPEncoderStream(OutputStream out)	Create a QP encoder that encodes the specified input stream.
QPEncoderStream(OutputStream out, int bytesPerLine)	Create a QP encoder that encodes the specified input 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.
protected void	output(int c, boolean encode)
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 Detail

QPEncoderStream

public QPEncoderStream(OutputStream out,
                       int bytesPerLine)

Create a QP encoder that encodes the specified input stream

Parameters:

out - the output stream

bytesPerLine - the number of bytes per line. The encoder inserts a CRLF sequence after this many number of bytes.

QPEncoderStream

public QPEncoderStream(OutputStream out)

Create a QP encoder that encodes the specified input stream. Inserts the CRLF sequence after outputting 76 bytes.

Parameters:

out - the output stream

Method Detail

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 - for I/O errors

output

protected void output(int c,
                      boolean encode)
               throws IOException

Throws:

IOException