org.apache.activemq.util
Class DataByteArrayOutputStream

java.lang.Object
  extended by java.io.OutputStream
      extended by 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


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