Class BabylonServerFileTransfer

java.lang.Object
  java.lang.Thread
      BabylonFileTransfer
          BabylonServerFileTransfer

All Implemented Interfaces:

java.lang.Runnable

public class BabylonServerFileTransfer
extends BabylonFileTransfer

The thread that runs file transfers on the server side. This class inherits from the generic, abstract BabylonFileTransfer class. It accepts incoming file blocks from the sending client, and sends them out to receiving clients in a coordinated way, until all users have either refused or received the file. If there are no more users receiving and the expiry time has been reached (even if there are still users who have neither accepted or declined) the thread terminates.

Author:

Andy McLaughlin

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class BabylonFileTransfer

blockSize, DEFAULT_BLOCKSIZE, expireMins, expiryTime, fileName, receivedAll, receivedBlocks, tmpFile, totalBlocks, totalSize, transFile

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

BabylonServerFileTransfer(BabylonServerConnection c, java.lang.String fn, long ts, int tb, int bs, int minutes, java.util.Vector iu)

Method Summary

void	addUser(BabylonServerConnection c) Add an invited user who has accepted the invitation to the list of participating users and begin sending file blocks.
void	cancel() Terminate the file transfer.
boolean	removeUser(BabylonServerConnection c) Remove a user from the list of participating users.
void	run() Loops through all of the transfer users, transferring file blocks to them.

Methods inherited from class BabylonFileTransfer

getFileBlock, putFileBlock

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

BabylonServerFileTransfer

public BabylonServerFileTransfer(BabylonServerConnection c,
                                 java.lang.String fn,
                                 long ts,
                                 int tb,
                                 int bs,
                                 int minutes,
                                 java.util.Vector iu)

Method Detail

run

public void run()

Loops through all of the transfer users, transferring file blocks to them. When all file blocks have been transferred to a user, they are removed from the list. If the user has disconnected, they are removed from the list. When the expiry date has been surpassed and there are no more users in the active list, the thread terminates.

Specified by:

run in interface java.lang.Runnable

Specified by:

run in class BabylonFileTransfer

addUser

public void addUser(BabylonServerConnection c)

Add an invited user who has accepted the invitation to the list of participating users and begin sending file blocks.

removeUser

public boolean removeUser(BabylonServerConnection c)

Remove a user from the list of participating users.

cancel

public void cancel()

Terminate the file transfer.