org.apache.mina.core.file

Class DefaultFileRegion

java.lang.Object

org.apache.mina.core.file.DefaultFileRegion

All Implemented Interfaces:

FileRegion

Direct Known Subclasses:

FilenameFileRegion

public class DefaultFileRegion
extends java.lang.Object
implements FileRegion

TODO Add documentation

Field Summary

Fields

Modifier and Type	Field and Description
private java.nio.channels.FileChannel	channel
private long	originalPosition
private long	position
private long	remainingBytes

Constructor Summary

Constructors

Constructor and Description
DefaultFileRegion(java.nio.channels.FileChannel channel)
DefaultFileRegion(java.nio.channels.FileChannel channel, long position, long remainingBytes)

Method Summary

Modifier and Type	Method and Description
java.nio.channels.FileChannel	getFileChannel() The open FileChannel from which data will be read to send to remote host.
java.lang.String	getFilename() Provides an absolute filename for the underlying FileChannel.
long	getPosition() The current file position from which data will be read.
long	getRemainingBytes() The number of bytes remaining to be written from the file to the remote host.
long	getWrittenBytes() The total number of bytes already written.
void	update(long value) Updates the current file position based on the specified amount.

Methods inherited from class java.lang.Object

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

Field Detail

channel

private final java.nio.channels.FileChannel channel

originalPosition

private final long originalPosition

position

private long position

remainingBytes

private long remainingBytes

Constructor Detail

DefaultFileRegion

public DefaultFileRegion(java.nio.channels.FileChannel channel)
                  throws java.io.IOException

Throws:

java.io.IOException

DefaultFileRegion

public DefaultFileRegion(java.nio.channels.FileChannel channel,
                         long position,
                         long remainingBytes)

Method Detail

getWrittenBytes

public long getWrittenBytes()

Description copied from interface: FileRegion

The total number of bytes already written.

Specified by:

getWrittenBytes in interface FileRegion

Returns:

The total number of bytes already written.

getRemainingBytes

public long getRemainingBytes()

Description copied from interface: FileRegion

The number of bytes remaining to be written from the file to the remote host.

Specified by:

getRemainingBytes in interface FileRegion

Returns:

The number of bytes remaining to be written.

getFileChannel

public java.nio.channels.FileChannel getFileChannel()

Description copied from interface: FileRegion

The open FileChannel from which data will be read to send to remote host.

Specified by:

getFileChannel in interface FileRegion

Returns:

An open FileChannel.

getPosition

public long getPosition()

Description copied from interface: FileRegion

The current file position from which data will be read.

Specified by:

getPosition in interface FileRegion

Returns:

The current file position.

update

public void update(long value)

Description copied from interface: FileRegion

Updates the current file position based on the specified amount. This increases the value returned by FileRegion.getPosition() and FileRegion.getWrittenBytes() by the given amount and decreases the value returned by FileRegion.getRemainingBytes() by the given amount.

Specified by:

update in interface FileRegion

Parameters:

value - The new value for the file position.

getFilename

public java.lang.String getFilename()

Description copied from interface: FileRegion

Provides an absolute filename for the underlying FileChannel.

Specified by:

getFilename in interface FileRegion

Returns:

the absolute filename, or null if the FileRegion does not know the filename