org.jwat.common

Class ByteArrayIOStream

java.lang.Object

org.jwat.common.ByteArrayIOStream

public class ByteArrayIOStream
extends java.lang.Object

Simple class to allow the use of an in-memory buffer as an alternate input or output stream.

Author:

nicl

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ByteArrayIOStream.InputStreamImpl Byte array InputStream.
static class	ByteArrayIOStream.OutputStreamImpl Byte array OutputStream.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.nio.ByteBuffer	byteBuffer Internal ByteBuffer wrapper of internal byte array.
protected byte[]	bytes Internal byte array.
static int	DEFAULT_BUFFER_SIZE Default buffer size if none specified.
protected int	limit Current ByteBuffer limit.
protected java.util.concurrent.Semaphore	lock Buffer lock.

Constructor Summary

Constructors

Constructor and Description
ByteArrayIOStream() Construct object with default buffer size.
ByteArrayIOStream(int bufferSize) Construct object with supplied buffer size.

Method Summary

Modifier and Type	Method and Description
java.nio.ByteBuffer	getByteBuffer() Return internal byte array wrapped in a new ByteBuffer object.
byte[]	getBytes() Return internal byte array.
java.io.InputStream	getInputStream() Return InputStream and lock this buffer
int	getLength() Return allocated length of internal buffer.
int	getLimit() Return internal ByteBuffer limit.
java.io.OutputStream	getOutputStream() Return OutputStream and lock this buffer
protected void	release() Release lock, called when input/output stream is closed.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_BUFFER_SIZE

public static final int DEFAULT_BUFFER_SIZE

Default buffer size if none specified.

See Also:

Constant Field Values

lock

protected java.util.concurrent.Semaphore lock

Buffer lock.

bytes

protected byte[] bytes

Internal byte array.

byteBuffer

protected java.nio.ByteBuffer byteBuffer

Internal ByteBuffer wrapper of internal byte array.

limit

protected int limit

Current ByteBuffer limit.

Constructor Detail

ByteArrayIOStream

public ByteArrayIOStream()

Construct object with default buffer size.

ByteArrayIOStream

public ByteArrayIOStream(int bufferSize)

Construct object with supplied buffer size.

Parameters:

bufferSize - buffer size to use

Method Detail

getOutputStream

public java.io.OutputStream getOutputStream()

Return OutputStream and lock this buffer

Returns:

OutputStream wrapper of this buffer

getBytes

public byte[] getBytes()

Return internal byte array.

Returns:

internal byte array

getLength

public int getLength()

Return allocated length of internal buffer.

Returns:

allocated length of internal buffer

getLimit

public int getLimit()

Return internal ByteBuffer limit.

Returns:

internal ByteBuffer limit

getByteBuffer

public java.nio.ByteBuffer getByteBuffer()

Return internal byte array wrapped in a new ByteBuffer object.

Returns:

internal byte array wrapped in a new ByteBuffer object

getInputStream

public java.io.InputStream getInputStream()

Return InputStream and lock this buffer

Returns:

InputStream wrapper of this buffer

release

protected void release()

Release lock, called when input/output stream is closed.