ants.p2p.utils.donkey
Class DonkeyHashFile

java.lang.Object
  ants.p2p.utils.donkey.DonkeyHashFile

All Implemented Interfaces:

DonkeyPacketConstants

public class DonkeyHashFile
extends java.lang.Object
implements DonkeyPacketConstants

Creates eDonkey2000 hashes and hashsets from files.

Field Summary

static java.beans.PropertyChangeSupport

propertyChangeSupport

Fields inherited from interface ants.p2p.utils.donkey.DonkeyPacketConstants

BLOCKSIZE, MET_HEADER, OP_ACCEPTUPLOADREQ, OP_CALLBACKFAIL, OP_CALLBACKHINT, OP_CALLBACKREQUEST, OP_CALLBACKREQUESTED, OP_CANCELTRANSFER, OP_EDONKEYHEADER, OP_EDONKEYPROT, OP_EMULEPROT, OP_ENDTRANSFER, OP_EXTENDEDPROT, OP_FILELISTANSWER, OP_FILELISTREQUEST, OP_FILEREQANSWER, OP_FILEREQREGRET, OP_FILEREQUEST, OP_FILESTATUS, OP_FOUNDSOURCES, OP_GETMORESEARCHRESULT, OP_GETSERVERLIST, OP_GETSOURCES, OP_GLOBCALLBACKFAIL, OP_GLOBCALLBACKREQ, OP_GLOBEXTENDEDSEARCHREQ, OP_GLOBFOUNDSOURCES, OP_GLOBGETSOURCES, OP_GLOBSEARCHREQ, OP_GLOBSEARCHRES, OP_GLOBSERVERINFO, OP_GLOBSERVERINFOREQ, OP_GLOBSERVERSTATUS, OP_GLOBSERVERSTATUSREQ, OP_HASHSETANSWER, OP_HASHSETREQUEST, OP_HELLO, OP_HELLOANSWER, OP_IDCHANGE, OP_LOGINREQUEST, OP_MESSAGE, OP_MLDONKEYPROT, OP_OFFERFILES, OP_QUEUEPOSITION, OP_REQUESTPARTS, OP_SEARCHREQUEST, OP_SEARCHRESULT, OP_SENDINGPART, OP_SERVERINFO, OP_SERVERLIST, OP_SERVERMESSAGE, OP_SERVERSTATUS, OP_SETREQFILEID, OP_STARTUPLOADREQ, OP_UPLOADEND, PARTSIZE, PORT_LISTENER, SO_EDONKEY, SO_EMULE, SO_HYBRID, SO_MLDONKEY, SO_OLDEMULE, SO_OLDMLDONKEY, SO_OVERNET

Constructor Summary

DonkeyHashFile()

Method Summary

static void	addPropertyChangeListener(java.beans.PropertyChangeListener pcl)
static byte[][]	digest(java.io.File file) Creates a edonkey2000 hashset of a filestream.
static byte[][]	doHash(java.io.File file) Creates a edonkey2000 hashset of a file.
static boolean	isValidHashset(byte[][] hashes)
static void	removePropertyChangeListener(java.beans.PropertyChangeListener pcl)

Methods inherited from class java.lang.Object

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

Field Detail

propertyChangeSupport

public static java.beans.PropertyChangeSupport propertyChangeSupport

Constructor Detail

DonkeyHashFile

public DonkeyHashFile()

Method Detail

addPropertyChangeListener

public static void addPropertyChangeListener(java.beans.PropertyChangeListener pcl)

removePropertyChangeListener

public static void removePropertyChangeListener(java.beans.PropertyChangeListener pcl)

doHash

public static byte[][] doHash(java.io.File file)

Creates a edonkey2000 hashset of a file. Returned DonkeyFileHashSet object: 1st edonkeyhash of file, next are partial hashes.

Parameters:

file - *complete* file to hash

Returns:

the hashes object or null if the file was not found or an IOException ocurred

digest

public static byte[][] digest(java.io.File file)
                       throws java.io.IOException

Creates a edonkey2000 hashset of a filestream. Returnes Array of byte[] with the hashes: 1st edonkeyhash of file, next are partial hashes.

Parameters:

fis - is used to get a FileChannel which is read from its intial position till its limit

Returns:

the hashes or null if an IOException ocurred

Throws:

java.io.IOException

isValidHashset

public static boolean isValidHashset(byte[][] hashes)