org.agrona.io

Class DirectBufferOutputStream

java.lang.Object

java.io.OutputStream

org.agrona.io.DirectBufferOutputStream

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable

public class DirectBufferOutputStream
extends java.io.OutputStream

OutputStream that wraps an underlying MutableDirectBuffer.

Constructor Summary

Constructors

Constructor and Description
DirectBufferOutputStream()
DirectBufferOutputStream(MutableDirectBuffer buffer)
DirectBufferOutputStream(MutableDirectBuffer buffer, int offset, int length)

Method Summary

Modifier and Type	Method and Description
MutableDirectBuffer	buffer() The underlying buffer being wrapped.
int	length() The length of the underlying buffer to use
int	offset() The offset within the underlying buffer at which to start.
int	position() The position in the buffer from the offset up to which has been written.
void	wrap(MutableDirectBuffer buffer)
void	wrap(MutableDirectBuffer buffer, int offset, int length)
void	write(byte[] srcBytes, int srcOffset, int length) Write a byte[] to the buffer.
void	write(int b) Write a byte to buffer.

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

Constructor Detail

DirectBufferOutputStream

public DirectBufferOutputStream()

DirectBufferOutputStream

public DirectBufferOutputStream(MutableDirectBuffer buffer)

DirectBufferOutputStream

public DirectBufferOutputStream(MutableDirectBuffer buffer,
                                int offset,
                                int length)

Method Detail

wrap

public void wrap(MutableDirectBuffer buffer)

wrap

public void wrap(MutableDirectBuffer buffer,
                 int offset,
                 int length)

position

public int position()

The position in the buffer from the offset up to which has been written.

Returns:

the position in the buffer from the offset up to which has been written.

offset

public int offset()

The offset within the underlying buffer at which to start.

Returns:

offset within the underlying buffer at which to start.

buffer

public MutableDirectBuffer buffer()

The underlying buffer being wrapped.

Returns:

the underlying buffer being wrapped.

length

public int length()

The length of the underlying buffer to use

Returns:

length of the underlying buffer to use

write

public void write(int b)
           throws java.io.IOException

Write a byte to buffer.

Specified by:

write in class java.io.OutputStream

Parameters:

b - to be written.

Throws:

java.lang.IllegalStateException - if insufficient capacity remains in the buffer.

java.io.IOException

write

public void write(byte[] srcBytes,
                  int srcOffset,
                  int length)
           throws java.io.IOException

Write a byte[] to the buffer.

Overrides:

write in class java.io.OutputStream

Parameters:

srcBytes - to write

srcOffset - at which to begin reading bytes from the srcBytes.

length - of the srcBytes to read.

Throws:

java.lang.IllegalStateException - if insufficient capacity remains in the buffer.

java.io.IOException