net.sf.saxon.serialize

Class UTF8Writer

java.lang.Object

java.io.Writer

net.sf.saxon.serialize.UTF8Writer

All Implemented Interfaces:

Closeable, Flushable, Appendable, AutoCloseable

public final class UTF8Writer
extends Writer

Specialized buffering UTF-8 writer. The main reason for custom version is to allow for efficient buffer recycling; the second benefit is that encoder has less overhead for short content encoding (compared to JDK default codecs).

Author:

Tatu Saloranta

Field Summary

Fields

Modifier and Type	Field and Description
protected OutputStream	_out
protected byte[]	_outBuffer
protected int	_outBufferLast
protected int	_outPtr
(package private) int	_surrogate When outputting chars from BMP, surrogate pairs need to be coalesced.
(package private) static int	SURR1_FIRST
(package private) static int	SURR1_LAST
(package private) static int	SURR2_FIRST
(package private) static int	SURR2_LAST

Fields inherited from class java.io.Writer

lock

Constructor Summary

Constructors

Constructor and Description
UTF8Writer(OutputStream out)
UTF8Writer(OutputStream out, int bufferLength)

Method Summary

Modifier and Type	Method and Description
void	close()
void	flush()
void	write(char[] cbuf)
void	write(char[] cbuf, int off, int len)
void	write(int c)
void	write(String str)
void	write(String str, int off, int len)

Methods inherited from class java.io.Writer

append, append, append

Methods inherited from class java.lang.Object

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

Field Detail

SURR1_FIRST

static final int SURR1_FIRST

See Also:

Constant Field Values

SURR1_LAST

static final int SURR1_LAST

See Also:

Constant Field Values

SURR2_FIRST

static final int SURR2_FIRST

See Also:

Constant Field Values

SURR2_LAST

static final int SURR2_LAST

See Also:

Constant Field Values

_out

protected OutputStream _out

_outBuffer

protected byte[] _outBuffer

_outBufferLast

protected final int _outBufferLast

_outPtr

protected int _outPtr

_surrogate

int _surrogate

When outputting chars from BMP, surrogate pairs need to be coalesced. To do this, both pairs must be known first; and since it is possible pairs may be split, we need temporary storage for the first half

Constructor Detail

UTF8Writer

public UTF8Writer(OutputStream out)

UTF8Writer

public UTF8Writer(OutputStream out,
                  int bufferLength)

Method Detail

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in class Writer

Throws:

IOException

flush

public void flush()
           throws IOException

Specified by:

flush in interface Flushable

Specified by:

flush in class Writer

Throws:

IOException

write

public void write(char[] cbuf)
           throws IOException

Overrides:

write in class Writer

Throws:

IOException

write

public void write(char[] cbuf,
                  int off,
                  int len)
           throws IOException

Specified by:

write in class Writer

Throws:

IOException

write

public void write(int c)
           throws IOException

Overrides:

write in class Writer

Throws:

IOException

write

public void write(String str)
           throws IOException

Overrides:

write in class Writer

Throws:

IOException

write

public void write(String str,
                  int off,
                  int len)
           throws IOException

Overrides:

write in class Writer

Throws:

IOException