org.tinygroup.commons.io

Class ByteArrayOutputStream

java.lang.Object

java.io.OutputStream

org.tinygroup.commons.io.ByteArrayOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class ByteArrayOutputStream
extends OutputStream

非同步的ByteArrayOutputStream替换方案, 执行toByteArray() 方法时返回的是只读的内部字节数组, 避免了没有必要的字节复制. 本代码移植自IBM developer works文章：

• 彻底转变流，第 1 部分：从输出流中读取
• 彻底转变流，第 2 部分：优化 Java 内部 I/O

Author:

Michael Zhou

Constructor Summary

Constructors

Constructor and Description
ByteArrayOutputStream()
ByteArrayOutputStream(int initialBufferSize)

Method Summary

Modifier and Type	Method and Description
void	close()
void	reset()
ByteArray	toByteArray()
InputStream	toInputStream()
void	write(byte[] data, int offset, int length)
void	write(int datum)
void	writeTo(OutputStream out)

Methods inherited from class java.io.OutputStream

flush, write

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteArrayOutputStream

public ByteArrayOutputStream()

ByteArrayOutputStream

public ByteArrayOutputStream(int initialBufferSize)

Method Detail

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

Specified by:

close in interface AutoCloseable

Overrides:

close in class OutputStream

writeTo

public void writeTo(OutputStream out)
             throws IOException

Throws:

IOException

toByteArray

public ByteArray toByteArray()

toInputStream

public InputStream toInputStream()

reset

public void reset()
           throws IOException

Throws:

IOException