org.apache.james.mime4j.codec

Class QuotedPrintableOutputStream

java.lang.Object

java.io.OutputStream

java.io.FilterOutputStream

org.apache.james.mime4j.codec.QuotedPrintableOutputStream

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable

public class QuotedPrintableOutputStream
extends java.io.FilterOutputStream

Performs Quoted-Printable encoding on an underlying stream. Encodes every "required" char plus the dot ".". We encode the dot by default because this is a workaround for some "filter"/"antivirus" "old mua" having issues with dots at the beginning or the end of a qp encode line (maybe a bad dot-destuffing algo).

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	binary
private boolean	closed
private static byte	CR
private static int	DEFAULT_BUFFER_SIZE
private static byte	DOT
private static byte	EQ
private static byte[]	HEX_DIGITS
private static byte	LF
private int	nextSoftBreak
private byte[]	outBuffer
private int	outputIndex
private boolean	pendingCR
private boolean	pendingSpace
private boolean	pendingTab
private static byte	QUOTED_PRINTABLE_LAST_PLAIN
private static int	QUOTED_PRINTABLE_MAX_LINE_LENGTH
private static int	QUOTED_PRINTABLE_OCTETS_PER_ESCAPE
private byte[]	singleByte
private static byte	SP
private static byte	TB

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

Constructors

Constructor and Description
QuotedPrintableOutputStream(int bufsize, java.io.OutputStream out, boolean binary)
QuotedPrintableOutputStream(java.io.OutputStream out, boolean binary)

Method Summary

Modifier and Type	Method and Description
private void	clearPending()
void	close()
private void	completeEncoding()
private void	encode(byte next)
private void	encodeChunk(byte[] buffer, int off, int len)
private void	escape(byte next)
void	flush()
(package private) void	flushOutput()
private void	lineBreak()
private void	plain(byte next)
private void	softBreak()
private void	write(byte next)
void	write(byte[] b, int off, int len)
void	write(int b)
private void	writePending()

Methods inherited from class java.io.FilterOutputStream

write

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_BUFFER_SIZE

private static final int DEFAULT_BUFFER_SIZE

See Also:

Constant Field Values

TB

private static final byte TB

See Also:

Constant Field Values

SP

private static final byte SP

See Also:

Constant Field Values

EQ

private static final byte EQ

See Also:

Constant Field Values

DOT

private static final byte DOT

See Also:

Constant Field Values

CR

private static final byte CR

See Also:

Constant Field Values

LF

private static final byte LF

See Also:

Constant Field Values

QUOTED_PRINTABLE_LAST_PLAIN

private static final byte QUOTED_PRINTABLE_LAST_PLAIN

See Also:

Constant Field Values

QUOTED_PRINTABLE_MAX_LINE_LENGTH

private static final int QUOTED_PRINTABLE_MAX_LINE_LENGTH

See Also:

Constant Field Values

QUOTED_PRINTABLE_OCTETS_PER_ESCAPE

private static final int QUOTED_PRINTABLE_OCTETS_PER_ESCAPE

See Also:

Constant Field Values

HEX_DIGITS

private static final byte[] HEX_DIGITS

outBuffer

private final byte[] outBuffer

binary

private final boolean binary

pendingSpace

private boolean pendingSpace

pendingTab

private boolean pendingTab

pendingCR

private boolean pendingCR

nextSoftBreak

private int nextSoftBreak

outputIndex

private int outputIndex

closed

private boolean closed

singleByte

private final byte[] singleByte

Constructor Detail

QuotedPrintableOutputStream

public QuotedPrintableOutputStream(int bufsize,
                                   java.io.OutputStream out,
                                   boolean binary)

QuotedPrintableOutputStream

public QuotedPrintableOutputStream(java.io.OutputStream out,
                                   boolean binary)

Method Detail

encodeChunk

private void encodeChunk(byte[] buffer,
                         int off,
                         int len)
                  throws java.io.IOException

Throws:

java.io.IOException

completeEncoding

private void completeEncoding()
                       throws java.io.IOException

Throws:

java.io.IOException

writePending

private void writePending()
                   throws java.io.IOException

Throws:

java.io.IOException

clearPending

private void clearPending()
                   throws java.io.IOException

Throws:

java.io.IOException

encode

private void encode(byte next)
             throws java.io.IOException

Throws:

java.io.IOException

plain

private void plain(byte next)
            throws java.io.IOException

Throws:

java.io.IOException

escape

private void escape(byte next)
             throws java.io.IOException

Throws:

java.io.IOException

write

private void write(byte next)
            throws java.io.IOException

Throws:

java.io.IOException

softBreak

private void softBreak()
                throws java.io.IOException

Throws:

java.io.IOException

lineBreak

private void lineBreak()
                throws java.io.IOException

Throws:

java.io.IOException

flushOutput

void flushOutput()
          throws java.io.IOException

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class java.io.FilterOutputStream

Throws:

java.io.IOException

flush

public void flush()
           throws java.io.IOException

Specified by:

flush in interface java.io.Flushable

Overrides:

flush in class java.io.FilterOutputStream

Throws:

java.io.IOException

write

public void write(int b)
           throws java.io.IOException

Overrides:

write in class java.io.FilterOutputStream

Throws:

java.io.IOException

write

public void write(byte[] b,
                  int off,
                  int len)
           throws java.io.IOException

Overrides:

write in class java.io.FilterOutputStream

Throws:

java.io.IOException