org.apache.struts2.util
Class FastByteArrayOutputStream

java.lang.Object
  java.io.OutputStream
      org.apache.struts2.util.FastByteArrayOutputStream

All Implemented Interfaces:

Closeable, Flushable

public class FastByteArrayOutputStream
extends OutputStream

A speedy implementation of ByteArrayOutputStream. It's not synchronized, and it does not copy buffers when it's expanded. There's also no copying of the internal buffer if it's contents is extracted with the writeTo(stream) method.

Field Summary

private int	blockSize
private byte[]	buffer
private LinkedList<byte[]>	buffers
private boolean	closed
private static int	DEFAULT_BLOCK_SIZE
private int	index
private int	size

Constructor Summary

FastByteArrayOutputStream()

FastByteArrayOutputStream(int blockSize)

Method Summary

protected void	addBuffer()
void	close()
private static CoderResult	decodeAndWrite(Writer writer, ByteBuffer in, CharBuffer out, CharsetDecoder decoder, boolean endOfInput)
private static void	decodeAndWriteBuffered(Writer writer, ByteBuffer in, CharBuffer out, CharsetDecoder decoder, boolean endOfInput)
private static void	decodeAndWriteOut(Writer writer, byte[] bytes, int length, ByteBuffer in, CharBuffer out, CharsetDecoder decoder, boolean endOfInput)
private CharsetDecoder	getDecoder(String encoding)
int	getSize()
byte[]	toByteArray()
String	toString()
void	write(byte[] data, int offset, int length)
void	write(int datum)
private void	writeOut(Writer out, byte[] bytes, int length)
void	writeTo(JspWriter out, String encoding) This is a patched method (standard)
void	writeTo(OutputStream out)
void	writeTo(RandomAccessFile out)
void	writeTo(Writer out, String encoding) This is a patched method (added for common Writer, needed for tests)
private void	writeToFile() This method is need only for debug.

Methods inherited from class java.io.OutputStream

flush, write

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_BLOCK_SIZE

private static final int DEFAULT_BLOCK_SIZE

See Also:

Constant Field Values

buffers

private LinkedList<byte[]> buffers

buffer

private byte[] buffer

index

private int index

size

private int size

blockSize

private int blockSize

closed

private boolean closed

Constructor Detail

FastByteArrayOutputStream

public FastByteArrayOutputStream()

FastByteArrayOutputStream

public FastByteArrayOutputStream(int blockSize)

Method Detail

writeTo

public void writeTo(OutputStream out)
             throws IOException

Throws:

IOException

writeTo

public void writeTo(RandomAccessFile out)
             throws IOException

Throws:

IOException

writeTo

public void writeTo(Writer out,
                    String encoding)
             throws IOException

This is a patched method (added for common Writer, needed for tests)

Parameters:

out - Writer

encoding - Encoding

Throws:

IOException - If some output failed

getDecoder

private CharsetDecoder getDecoder(String encoding)

writeTo

public void writeTo(JspWriter out,
                    String encoding)
             throws IOException

This is a patched method (standard)

Parameters:

out - Writer

encoding - Encoding

Throws:

IOException - If some output failed

writeToFile

private void writeToFile()

This method is need only for debug. And needed for tests generated files.

writeOut

private void writeOut(Writer out,
                      byte[] bytes,
                      int length)
               throws IOException

Throws:

IOException

decodeAndWriteOut

private static void decodeAndWriteOut(Writer writer,
                                      byte[] bytes,
                                      int length,
                                      ByteBuffer in,
                                      CharBuffer out,
                                      CharsetDecoder decoder,
                                      boolean endOfInput)
                               throws IOException

Throws:

IOException

decodeAndWriteBuffered

private static void decodeAndWriteBuffered(Writer writer,
                                           ByteBuffer in,
                                           CharBuffer out,
                                           CharsetDecoder decoder,
                                           boolean endOfInput)
                                    throws IOException

Throws:

IOException

decodeAndWrite

private static CoderResult decodeAndWrite(Writer writer,
                                          ByteBuffer in,
                                          CharBuffer out,
                                          CharsetDecoder decoder,
                                          boolean endOfInput)
                                   throws IOException

Throws:

IOException

getSize

public int getSize()

toByteArray

public byte[] toByteArray()

toString

public String toString()

Overrides:

toString in class Object

addBuffer

protected void addBuffer()

write

public void write(int datum)
           throws IOException

Specified by:

write in class OutputStream

Throws:

IOException

write

public void write(byte[] data,
                  int offset,
                  int length)
           throws IOException

Overrides:

write in class OutputStream

Throws:

IOException

close

public void close()

Specified by:

close in interface Closeable

Overrides:

close in class OutputStream