java.lang.Object
- java.io.OutputStream
- - org.fusesource.hawtbuf.DataByteArrayOutputStream

All Implemented Interfaces:

java.io.Closeable, java.io.DataOutput, java.io.Flushable, java.lang.AutoCloseable
```
public class DataByteArrayOutputStream
extends java.io.OutputStream
implements java.io.DataOutput
```
Optimized ByteArrayOutputStream

Field Summary

Fields
Modifier and Type Field Description

protected byte[] buf

private static int DEFAULT_SIZE

protected AbstractVarIntSupport helper

protected int pos

Constructor Summary

Constructors
Constructor	Description
`DataByteArrayOutputStream()`	Creates a new byte array output stream.
`DataByteArrayOutputStream(byte[] buf)`
`DataByteArrayOutputStream(int size)`	Creates a new byte array output stream, with a buffer capacity of the specified size, in bytes.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`private void`	`ensureEnoughBuffer(int newcount)`
`byte[]`	`getData()`
`protected void`	`onWrite()`	This method is called after each write to the buffer.
`int`	`position()`
`void`	`position(int offset)`	Set the current position for writing
`void`	`reset()`	reset the output stream
`protected void`	`resize(int newcount)`
`void`	`restart()`	start using a fresh byte array
`void`	`restart(int size)`	start using a fresh byte array
`int`	`size()`
`void`	`skip(int size)`
`Buffer`	`toBuffer()`	Get a Buffer from the stream
`void`	`write(byte[] b, int off, int len)`	Writes `len` bytes from the specified byte array starting at offset `off` to this byte array output stream.
`void`	`write(int b)`	Writes the specified byte to this byte array output stream.
`void`	`write(Buffer data)`
`void`	`writeBoolean(boolean v)`
`void`	`writeByte(int v)`
`void`	`writeBytes(java.lang.String s)`
`void`	`writeChar(int v)`
`void`	`writeChars(java.lang.String s)`
`void`	`writeDouble(double v)`
`void`	`writeFloat(float v)`
`void`	`writeInt(int v)`
`void`	`writeLong(long v)`
`void`	`writeShort(int v)`
`void`	`writeUTF(java.lang.String str)`
`void`	`writeVarInt(int value)`
`void`	`writeVarLong(long value)`
`void`	`writeVarSignedInt(int value)`
`void`	`writeVarSignedLong(long value)`

Methods inherited from class java.io.OutputStream
close, flush, write

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.io.DataOutput
write

- Field Detail
  - DEFAULT_SIZE
```
private static final int DEFAULT_SIZE
```
    See Also:
    
    Constant Field Values
  - buf
```
protected byte[] buf
```
  - pos
```
protected int pos
```
  - helper
```
protected AbstractVarIntSupport helper
```
- Constructor Detail
  - DataByteArrayOutputStream
```
public DataByteArrayOutputStream(int size)
```
    Creates a new byte array output stream, with a buffer capacity of the specified size, in bytes.
    
    Parameters:
    
    size - the initial size.
    
    Throws:
    
    java.lang.IllegalArgumentException - if size is negative.
  - DataByteArrayOutputStream
```
public DataByteArrayOutputStream(byte[] buf)
```
  - DataByteArrayOutputStream
```
public DataByteArrayOutputStream()
```
    Creates a new byte array output stream.
- Method Detail
  - restart
```
public void restart(int size)
```
    start using a fresh byte array
    
    Parameters:
    
    size -
  - restart
```
public void restart()
```
    start using a fresh byte array
  - toBuffer
```
public Buffer toBuffer()
```
    Get a Buffer from the stream
    
    Returns:
    
    the byte sequence
  - write
```
public void write(int b)
           throws java.io.IOException
```
    Writes the specified byte to this byte array output stream.
    
    Specified by:
    
    write in interface java.io.DataOutput
    
    Specified by:
    
    write in class java.io.OutputStream
    
    Parameters:
    
    b - the byte to be written.
    
    Throws:
    
    java.io.IOException
  - write
```
public void write(Buffer data)
           throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - write
```
public void write(byte[] b,
                  int off,
                  int len)
           throws java.io.IOException
```
    Writes len bytes from the specified byte array starting at offset off to this byte array output stream.
    
    Specified by:
    
    write in interface java.io.DataOutput
    
    Overrides:
    
    write in class java.io.OutputStream
    
    Parameters:
    
    b - the data.
    
    off - the start offset in the data.
    
    len - the number of bytes to write.
    
    Throws:
    
    java.io.IOException
  - getData
```
public byte[] getData()
```
    Returns:
    
    the underlying byte[] buffer
  - reset
```
public void reset()
```
    reset the output stream
  - position
```
public void position(int offset)
              throws java.io.IOException
```
    Set the current position for writing
    
    Parameters:
    
    offset -
    
    Throws:
    
    java.io.IOException
  - position
```
public int position()
```
  - size
```
public int size()
```
  - writeBoolean
```
public void writeBoolean(boolean v)
                  throws java.io.IOException
```
    Specified by:
    
    writeBoolean in interface java.io.DataOutput
    
    Throws:
    
    java.io.IOException
  - writeByte
```
public void writeByte(int v)
               throws java.io.IOException
```
    Specified by:
    
    writeByte in interface java.io.DataOutput
    
    Throws:
    
    java.io.IOException
  - writeShort
```
public void writeShort(int v)
                throws java.io.IOException
```
    Specified by:
    
    writeShort in interface java.io.DataOutput
    
    Throws:
    
    java.io.IOException
  - writeChar
```
public void writeChar(int v)
               throws java.io.IOException
```
    Specified by:
    
    writeChar in interface java.io.DataOutput
    
    Throws:
    
    java.io.IOException
  - writeInt
```
public void writeInt(int v)
              throws java.io.IOException
```
    Specified by:
    
    writeInt in interface java.io.DataOutput
    
    Throws:
    
    java.io.IOException
  - writeLong
```
public void writeLong(long v)
               throws java.io.IOException
```
    Specified by:
    
    writeLong in interface java.io.DataOutput
    
    Throws:
    
    java.io.IOException
  - writeFloat
```
public void writeFloat(float v)
                throws java.io.IOException
```
    Specified by:
    
    writeFloat in interface java.io.DataOutput
    
    Throws:
    
    java.io.IOException
  - writeDouble
```
public void writeDouble(double v)
                 throws java.io.IOException
```
    Specified by:
    
    writeDouble in interface java.io.DataOutput
    
    Throws:
    
    java.io.IOException
  - writeBytes
```
public void writeBytes(java.lang.String s)
                throws java.io.IOException
```
    Specified by:
    
    writeBytes in interface java.io.DataOutput
    
    Throws:
    
    java.io.IOException
  - writeChars
```
public void writeChars(java.lang.String s)
                throws java.io.IOException
```
    Specified by:
    
    writeChars in interface java.io.DataOutput
    
    Throws:
    
    java.io.IOException
  - writeUTF
```
public void writeUTF(java.lang.String str)
              throws java.io.IOException
```
    Specified by:
    
    writeUTF in interface java.io.DataOutput
    
    Throws:
    
    java.io.IOException
  - ensureEnoughBuffer
```
private void ensureEnoughBuffer(int newcount)
```
  - resize
```
protected void resize(int newcount)
```
  - onWrite
```
protected void onWrite()
                throws java.io.IOException
```
    This method is called after each write to the buffer. This should allow subclasses to take some action based on the writes, for example flushing data to an external system based on size.
    
    Throws:
    
    java.io.IOException
  - skip
```
public void skip(int size)
          throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - writeVarInt
```
public void writeVarInt(int value)
                 throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - writeVarLong
```
public void writeVarLong(long value)
                  throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - writeVarSignedInt
```
public void writeVarSignedInt(int value)
                       throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - writeVarSignedLong
```
public void writeVarSignedLong(long value)
                        throws java.io.IOException
```
    Throws:
    
    java.io.IOException

Modifier and Type	Field	Description
`protected byte[]`	`buf`
`private static int`	`DEFAULT_SIZE`
`protected AbstractVarIntSupport`	`helper`
`protected int`	`pos`

Class DataByteArrayOutputStream

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.io.OutputStream

Methods inherited from class java.lang.Object

Methods inherited from interface java.io.DataOutput

Field Detail

DEFAULT_SIZE

buf

pos

helper

Constructor Detail

DataByteArrayOutputStream

DataByteArrayOutputStream

DataByteArrayOutputStream

Method Detail

restart

restart

toBuffer

write

write

write

getData

reset

position

position

size

writeBoolean

writeByte

writeShort

writeChar

writeInt

writeLong

writeFloat

writeDouble

writeBytes

writeChars

writeUTF

ensureEnoughBuffer

resize

onWrite

skip

writeVarInt

writeVarLong

writeVarSignedInt

writeVarSignedLong