Class BabylonImageTransfer

java.lang.Object
  java.lang.Thread
      BabylonImageTransfer

All Implemented Interfaces:

java.lang.Runnable

public class BabylonImageTransfer
extends java.lang.Thread

A class for transferring canvas images by the client or server as a separate thread. The benefit here being that the data can be sent in atomic blocks instead of one large command. This is also necessary for large images because as of protocol 2.2, connections will terminate if new commands are not received for a few seconds, and a large image from the 2.1 protocol can monopolize the stream for a considerable time.

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

protected static int	DEFAULT_BLOCKSIZE
protected int	fromId
protected boolean	gotAll
protected java.lang.String	imageName
protected boolean	priv
protected boolean	stop
protected short	xCoord
protected short	yCoord

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

BabylonImageTransfer(int f, java.lang.String n, short x, short y, int ts, int tb, int bs, java.util.Vector tc, int[] r, BabylonPanel p, BabylonProgressDialog pd)

Method Summary

protected byte[]	getImageAll() Get the whole image as a single byte array.
protected void	putImageAll(byte[] data) Store the whole image, broken up into blocks.
protected void	putImageBlock(int blockNumber, byte[] data) Store the requested block.
void	run() Sends image data out to any recipients when it has all been collected, and if we are a client receiving the image, paste it onto the canvas.

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

Field Detail

DEFAULT_BLOCKSIZE

protected static final int DEFAULT_BLOCKSIZE

See Also:

Constant Field Values

fromId

protected int fromId

imageName

protected java.lang.String imageName

xCoord

protected short xCoord

yCoord

protected short yCoord

stop

protected boolean stop

gotAll

protected boolean gotAll

priv

protected boolean priv

Constructor Detail

BabylonImageTransfer

public BabylonImageTransfer(int f,
                            java.lang.String n,
                            short x,
                            short y,
                            int ts,
                            int tb,
                            int bs,
                            java.util.Vector tc,
                            int[] r,
                            BabylonPanel p,
                            BabylonProgressDialog pd)

Method Detail

run

public void run()

Sends image data out to any recipients when it has all been collected, and if we are a client receiving the image, paste it onto the canvas.

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread

putImageBlock

protected void putImageBlock(int blockNumber,
                             byte[] data)
                      throws java.lang.IndexOutOfBoundsException

Store the requested block.

Throws:

java.lang.IndexOutOfBoundsException

putImageAll

protected void putImageAll(byte[] data)

Store the whole image, broken up into blocks.

getImageAll

protected byte[] getImageAll()
                      throws java.lang.IndexOutOfBoundsException

Get the whole image as a single byte array.

Throws:

java.lang.IndexOutOfBoundsException