Package fr.dyade.aaa.agent

Class ByteArrayMessageOutputStream

java.lang.Object

java.io.OutputStream

fr.dyade.aaa.agent.MessageOutputStream

fr.dyade.aaa.agent.ByteArrayMessageOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

Direct Known Subclasses:

HttpNetwork.NetworkOutputStream

public abstract class ByteArrayMessageOutputStream
extends MessageOutputStream

Class used to write messages into a byte array.

This OutputStream allows the replacement of the underlying stream and the serialisation of object through an internal ObjectOutputStream.

Be careful this OutputStream is not synchronized.

Field Summary

Fields inherited from class fr.dyade.aaa.agent.MessageOutputStream

buf, compressedFlows, count, oos

Constructor Summary

Constructors

Constructor	Description
ByteArrayMessageOutputStream()	Creates a new output stream to write data to an internal byte array with default size.
ByteArrayMessageOutputStream(int size)	Creates a new output stream to write data to an internal byte array with specified size.

Method Summary

Modifier and Type	Method	Description
void	reset()	Resets this output stream.
int	size()	Returns the current size of the buffer.
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)	Writes the specified byte to this output stream.
void	writeTo(OutputStream out)	Writes the complete contents of this byte array output stream to the specified output stream argument, as if by calling the output stream's write method using out.write(buf, 0, count).

Methods inherited from class fr.dyade.aaa.agent.MessageOutputStream

write, writeHeader, writeInt, writeMessage, writeMessageHeader, writeShort

Methods inherited from class java.io.OutputStream

close, flush, nullOutputStream

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteArrayMessageOutputStream

public ByteArrayMessageOutputStream()
                             throws IOException

Creates a new output stream to write data to an internal byte array with default size.

Throws:

IOException - if the internal ObjectOutputStream cannot be correctly initialized.

ByteArrayMessageOutputStream

public ByteArrayMessageOutputStream(int size)
                             throws IOException

Creates a new output stream to write data to an internal byte array with specified size.

Parameters:

size - the buffer size.

Throws:

IllegalArgumentException - if size is less than 0.

IOException - if the internal ObjectOutputStream cannot be correctly initialized.

Method Detail

write

public final void write(int b)
                 throws IOException

Writes the specified byte to this output stream.

Specified by:

write in class MessageOutputStream

Parameters:

b - the byte to be written.

Throws:

IOException - if an I/O error occurs.

write

public final 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.

Specified by:

write in class MessageOutputStream

Parameters:

b - the data.

off - the start offset in the data.

len - the number of bytes to write.

Throws:

IOException - if an I/O error occurs.

size

public final int size()

Returns the current size of the buffer.

Returns:

the current size of the buffer.

reset

public final void reset()

Resets this output stream.

Set the count field of this output stream to zero, so that all currently accumulated output in the output stream is discarded. The output stream can be used again, reusing the already allocated buffer space.

writeTo

public final void writeTo(OutputStream out)
                   throws IOException

Writes the complete contents of this byte array output stream to the specified output stream argument, as if by calling the output stream's write method using out.write(buf, 0, count).

Parameters:

out - the output stream to which to write the data.

Throws:

IOException - if an I/O error occurs.