org.mortbay.io.nio
Class NIOBuffer

java.lang.Object
  org.mortbay.io.AbstractBuffer
      org.mortbay.io.nio.NIOBuffer

All Implemented Interfaces:

Cloneable, Buffer

public class NIOBuffer
extends AbstractBuffer

Author:

gregw

Nested Class Summary

Nested classes/interfaces inherited from interface org.mortbay.io.Buffer

Buffer.CaseInsensitve

Field Summary

protected ByteBuffer	_buf
static boolean	DIRECT
static boolean	INDIRECT

Fields inherited from class org.mortbay.io.AbstractBuffer

__IMMUTABLE, __READONLY, __READWRITE, __VOLATILE, _access, _get, _hash, _put, _string, _volatile

Fields inherited from interface org.mortbay.io.Buffer

IMMUTABLE, NON_VOLATILE, READONLY, READWRITE, VOLATILE

Constructor Summary

NIOBuffer(File file)

NIOBuffer(int size, boolean direct)

Method Summary

byte[]	array() Get the underlying array, if one exists.
int	capacity() The capacity of the buffer.
ByteBuffer	getByteBuffer()
byte	peek(int position) Get the byte at a specific index in the buffer.
int	peek(int index, byte[] b, int offset, int length)
int	poke(int index, Buffer src) Put the contents of the buffer at the specific index.
void	poke(int position, byte b) Put a specific byte to a specific getIndex.
int	poke(int index, byte[] b, int offset, int length) Put a specific byte to a specific getIndex.
int	readFrom(InputStream in, int max) Read the buffer's contents from the input stream
void	setByteBuffer(ByteBuffer buf)
void	writeTo(OutputStream out) Write the buffer's contents to the output stream

Methods inherited from class org.mortbay.io.AbstractBuffer

asArray, asImmutableBuffer, asMutableBuffer, asNonVolatileBuffer, asReadOnlyBuffer, buffer, clear, compact, duplicate, equals, equalsIgnoreCase, get, get, get, getIndex, hasContent, hashCode, isImmutable, isReadOnly, isVolatile, length, mark, mark, markIndex, peek, peek, put, put, put, put, putIndex, reset, rewind, setGetIndex, setMarkIndex, setPutIndex, skip, slice, sliceFromMark, sliceFromMark, space, toDebugString, toDetailString, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

DIRECT

public static final boolean DIRECT

See Also:

Constant Field Values

INDIRECT

public static final boolean INDIRECT

See Also:

Constant Field Values

_buf

protected ByteBuffer _buf

Constructor Detail

NIOBuffer

public NIOBuffer(int size,
                 boolean direct)

NIOBuffer

public NIOBuffer(File file)
          throws IOException

Parameters:

file -

Throws:

IOException

Method Detail

array

public byte[] array()

Description copied from interface: Buffer

Get the underlying array, if one exists.

Returns:

a byte[] backing this buffer or null if none exists.

capacity

public int capacity()

Description copied from interface: Buffer

The capacity of the buffer. This is the maximum putIndex that may be set.

Returns:

an int value

peek

public byte peek(int position)

Description copied from interface: Buffer

Get the byte at a specific index in the buffer.

Parameters:

position - an int value

Returns:

a byte value

peek

public int peek(int index,
                byte[] b,
                int offset,
                int length)

Parameters:

index - an int value

b - The byte array to peek into

offset - The offset into the array to start peeking

length - an int value

Returns:

The number of bytes actually peeked

poke

public void poke(int position,
                 byte b)

Description copied from interface: Buffer

Put a specific byte to a specific getIndex.

Parameters:

position - an int value

b - a byte value

poke

public int poke(int index,
                Buffer src)

Description copied from interface: Buffer

Put the contents of the buffer at the specific index.

Specified by:

poke in interface Buffer

Overrides:

poke in class AbstractBuffer

Parameters:

index - an int value

src - a Buffer. If the source buffer is not modified

Returns:

The number of bytes actually poked

poke

public int poke(int index,
                byte[] b,
                int offset,
                int length)

Description copied from interface: Buffer

Put a specific byte to a specific getIndex.

Specified by:

poke in interface Buffer

Overrides:

poke in class AbstractBuffer

Parameters:

index - an int value

b - a byte array value

Returns:

The number of bytes actually poked

getByteBuffer

public ByteBuffer getByteBuffer()

setByteBuffer

public void setByteBuffer(ByteBuffer buf)

readFrom

public int readFrom(InputStream in,
                    int max)
             throws IOException

Description copied from interface: Buffer

Read the buffer's contents from the input stream

Specified by:

readFrom in interface Buffer

Overrides:

readFrom in class AbstractBuffer

Parameters:

in - input stream

max - maximum number of bytes that may be read

Returns:

actual number of bytes read or -1 for EOF

Throws:

IOException

writeTo

public void writeTo(OutputStream out)
             throws IOException

Description copied from interface: Buffer

Write the buffer's contents to the output stream

Specified by:

writeTo in interface Buffer

Overrides:

writeTo in class AbstractBuffer

Throws:

IOException