org.mpisws.p2p.filetransfer
Class TempFileAllocationStrategy

java.lang.Object
  org.mpisws.p2p.filetransfer.TempFileAllocationStrategy

All Implemented Interfaces:

FileAllocationStrategy

public class TempFileAllocationStrategy
extends java.lang.Object
implements FileAllocationStrategy

Just creates a temp file, ignoring the filename/size. Does not delete on exit, as this is not memory safe.

Author:

Jeff Hoye

Field Summary

protected java.io.File	dir
protected java.lang.String	prefix
protected java.lang.String	suffix

Constructor Summary

TempFileAllocationStrategy()

TempFileAllocationStrategy(java.lang.String prefix, java.lang.String suffix)

TempFileAllocationStrategy(java.lang.String prefix, java.lang.String suffix, java.io.File directory)

Method Summary

void	fileCancelled(java.nio.ByteBuffer metadata, java.io.File f, long offset, long downloadedLength, long requestedLength, java.lang.Exception reason) Notification of a cancelled transfer.
java.io.File	getFile(java.nio.ByteBuffer metadata, long offset, long length)

Methods inherited from class java.lang.Object

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

Field Detail

prefix

protected java.lang.String prefix

suffix

protected java.lang.String suffix

dir

protected java.io.File dir

Constructor Detail

TempFileAllocationStrategy

public TempFileAllocationStrategy()

TempFileAllocationStrategy

public TempFileAllocationStrategy(java.lang.String prefix,
                                  java.lang.String suffix)

TempFileAllocationStrategy

public TempFileAllocationStrategy(java.lang.String prefix,
                                  java.lang.String suffix,
                                  java.io.File directory)

Method Detail

getFile

public java.io.File getFile(java.nio.ByteBuffer metadata,
                            long offset,
                            long length)
                     throws java.io.IOException

Specified by:

getFile in interface FileAllocationStrategy

Parameters:

metadata - application specific, often the file name

Returns:

Throws:

java.io.IOException

fileCancelled

public void fileCancelled(java.nio.ByteBuffer metadata,
                          java.io.File f,
                          long offset,
                          long downloadedLength,
                          long requestedLength,
                          java.lang.Exception reason)

Description copied from interface: FileAllocationStrategy

Notification of a cancelled transfer.

Specified by:

fileCancelled in interface FileAllocationStrategy

Parameters:

metadata - application specific, often the file name

f - the file that was given by this strategy before

offset - the beginning point in the file of this file transfer

downloadedLength - the actual "valid" downloaded length

requestedLength - the length of the original file transfer request