org.jppf.utils.streams
Class MultipleBuffersOutputStream

java.lang.Object
  java.io.OutputStream
      org.jppf.utils.streams.MultipleBuffersOutputStream

All Implemented Interfaces:

Closeable, Flushable

public class MultipleBuffersOutputStream
extends OutputStream

An output stream implementation that minimizes memory usage.

Author:

Laurent Cohen

Constructor Summary

MultipleBuffersOutputStream()
Intialize this output stream with a default buffer length of 32768.

MultipleBuffersOutputStream(int defaultLength)
Intialize this output stream with the specified default buffer length.

MultipleBuffersOutputStream(List<JPPFBuffer> initialList)
Intialize this output stream with a default buffer length of 32768.

Method Summary

int	size() Get the size of the content of this output stream.
List<JPPFBuffer>	toBufferList() Get the content of the output stream as a list of JPPFBuffer instances.
byte[]	toByteArray() Get te content of the output stream as a single array of byte
String	toString()
void	write(byte[] b) Writes the specified byte array to this output stream.
void	write(byte[] b, int off, int len) Writes len bytes from the specified byte array starting at offset off to this output stream.
void	write(int b) Write a single byte into this output stream.

Methods inherited from class java.io.OutputStream

close, flush

Methods inherited from class java.lang.Object

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

Constructor Detail

MultipleBuffersOutputStream

public MultipleBuffersOutputStream()

Intialize this output stream with a default buffer length of 32768.

MultipleBuffersOutputStream

public MultipleBuffersOutputStream(List<JPPFBuffer> initialList)

Intialize this output stream with a default buffer length of 32768.

Parameters:

initialList - contains the data that is written to this output stream.

MultipleBuffersOutputStream

public MultipleBuffersOutputStream(int defaultLength)
                            throws IllegalArgumentException

Intialize this output stream with the specified default buffer length.

Parameters:

defaultLength - the default buffer length to use, must be strictly greater than 0.

Throws:

IllegalArgumentException - if the specified default length is less than 1.

Method Detail

write

public void write(int b)
           throws IOException

Write a single byte into this output stream.

Specified by:

write in class OutputStream

Parameters:

b - the data to write.

Throws:

IOException - if any error occurs.

See Also:

OutputStream.write(int)

write

public void write(byte[] b,
                  int off,
                  int len)
           throws IOException

Writes len bytes from the specified byte array starting at offset off to this output stream.

Overrides:

write in class OutputStream

Parameters:

b - the data.

off - the start offset in the data.

len - the number of bytes to write.

Throws:

IOException - if any error occurs.

See Also:

OutputStream.write(byte[], int, int)

write

public void write(byte[] b)
           throws IOException

Writes the specified byte array to this output stream.

Overrides:

write in class OutputStream

Parameters:

b - the data to write.

Throws:

IOException - if any error occurs.

See Also:

OutputStream.write(byte[])

size

public int size()

Get the size of the content of this output stream.

Returns:

the size as an int value.

toBufferList

public List<JPPFBuffer> toBufferList()

Get the content of the output stream as a list of JPPFBuffer instances.

Returns:

a list of JPPFBuffer instances.

toByteArray

public byte[] toByteArray()

Get te content of the output stream as a single array of byte

Returns:

an array of bytes.

toString

public String toString()

Overrides:

toString in class Object