org.apache.activemq.util
Class DataByteArrayOutputStream

java.lang.Object
  java.io.OutputStream
      org.apache.activemq.util.DataByteArrayOutputStream

All Implemented Interfaces:

Closeable, DataOutput, Flushable

public final class DataByteArrayOutputStream
extends OutputStream
implements DataOutput

Optimized ByteArrayOutputStream

Constructor Summary

DataByteArrayOutputStream()
Creates a new byte array output stream.

DataByteArrayOutputStream(int size)
Creates a new byte array output stream, with a buffer capacity of the specified size, in bytes.

Method Summary

byte[]	getData()
void	position(int offset) Set the current position for writing
void	reset() reset the output stream
void	restart() start using a fresh byte array
void	restart(int size) start using a fresh byte array
int	size()
ByteSequence	toByteSequence() Get a ByteSequence 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	writeBoolean(boolean v)
void	writeByte(int v)
void	writeBytes(String s)
void	writeChar(int v)
void	writeChars(String s)
void	writeDouble(double v)
void	writeFloat(float v)
void	writeInt(int v)
void	writeLong(long v)
void	writeShort(int v)
void	writeUTF(String str)

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

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:

IllegalArgumentException - if size is negative.

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

toByteSequence

public ByteSequence toByteSequence()

Get a ByteSequence from the stream

Returns:

the byte sequence

write

public void write(int b)

Writes the specified byte to this byte array output stream.

Specified by:

write in interface DataOutput

Specified by:

write in class OutputStream

Parameters:

b - the byte to be written.

write

public 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.

Specified by:

write in interface DataOutput

Overrides:

write in class OutputStream

Parameters:

b - the data.

off - the start offset in the data.

len - the number of bytes to write.

getData

public byte[] getData()

Returns:

the underlying byte[] buffer

reset

public void reset()

reset the output stream

position

public void position(int offset)

Set the current position for writing

Parameters:

offset -

size

public int size()

writeBoolean

public void writeBoolean(boolean v)

Specified by:

writeBoolean in interface DataOutput

writeByte

public void writeByte(int v)

Specified by:

writeByte in interface DataOutput

writeShort

public void writeShort(int v)

Specified by:

writeShort in interface DataOutput

writeChar

public void writeChar(int v)

Specified by:

writeChar in interface DataOutput

writeInt

public void writeInt(int v)

Specified by:

writeInt in interface DataOutput

writeLong

public void writeLong(long v)

Specified by:

writeLong in interface DataOutput

writeFloat

public void writeFloat(float v)
                throws IOException

Specified by:

writeFloat in interface DataOutput

Throws:

IOException

writeDouble

public void writeDouble(double v)
                 throws IOException

Specified by:

writeDouble in interface DataOutput

Throws:

IOException

writeBytes

public void writeBytes(String s)

Specified by:

writeBytes in interface DataOutput

writeChars

public void writeChars(String s)

Specified by:

writeChars in interface DataOutput

writeUTF

public void writeUTF(String str)
              throws IOException

Specified by:

writeUTF in interface DataOutput

Throws:

IOException