org.rosuda.javaGD
Class XGDserver

java.lang.Object
  java.lang.Thread
      org.rosuda.javaGD.XGDserver

All Implemented Interfaces:

java.lang.Runnable

public class XGDserver
extends java.lang.Thread

XGDserver is a sample implementation of a server understanding the XGD1 protocol using GDCanvas for drawing. It is meant rather as a template for projects that wish to use R graphics device remotely via the xGD package. The main customization for other projects can be done for Open (1) and Close (2) commands.

Nested Class Summary

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

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

Field Summary

static byte	CMD_Activate
static byte	CMD_Circle
static byte	CMD_Clip
static byte	CMD_Close
static byte	CMD_Deactivate
static byte	CMD_GetSize
static byte	CMD_Hold
static byte	CMD_Line
static byte	CMD_Locator
static byte	CMD_MetricInfo
static byte	CMD_Mode
static byte	CMD_NewPage
static byte	CMD_Open
static byte	CMD_Polygon
static byte	CMD_Polyline
static byte	CMD_Rect
static byte	CMD_SetColor
static byte	CMD_SetFill
static byte	CMD_SetFont
static byte	CMD_SetLinePar
static byte	CMD_StrWidth
static byte	CMD_Text
static int	XGD_Port default TCP port used by XGD

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

XGDserver()
start a new XGD server on the default port

XGDserver(int port)
start a new XGD server on a specific port

Method Summary

static void	main(java.lang.String[] args) main method - calls startServer()
void	run() main server method listening on port 1427 and serving clients.
static XGDserver	startServer() starts a new XGD server.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, 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

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

Field Detail

XGD_Port

public static final int XGD_Port

default TCP port used by XGD

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Constant Field Values

CMD_Open

public static final byte CMD_Open

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Constant Field Values

CMD_Close

public static final byte CMD_Close

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Constant Field Values

CMD_Activate

public static final byte CMD_Activate

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Constant Field Values

CMD_Deactivate

public static final byte CMD_Deactivate

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Constant Field Values

CMD_Circle

public static final byte CMD_Circle

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Constant Field Values

CMD_Clip

public static final byte CMD_Clip

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Constant Field Values

CMD_Hold

public static final byte CMD_Hold

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Constant Field Values

CMD_Locator

public static final byte CMD_Locator

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Constant Field Values

CMD_Line

public static final byte CMD_Line

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Constant Field Values

CMD_MetricInfo

public static final byte CMD_MetricInfo

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Constant Field Values

CMD_Mode

public static final byte CMD_Mode

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Constant Field Values

CMD_NewPage

public static final byte CMD_NewPage

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Constant Field Values

CMD_Polygon

public static final byte CMD_Polygon

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Constant Field Values

CMD_Polyline

public static final byte CMD_Polyline

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Constant Field Values

CMD_Rect

public static final byte CMD_Rect

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Constant Field Values

CMD_GetSize

public static final byte CMD_GetSize

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Constant Field Values

CMD_StrWidth

public static final byte CMD_StrWidth

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Constant Field Values

CMD_Text

public static final byte CMD_Text

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Constant Field Values

CMD_SetColor

public static final byte CMD_SetColor

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Constant Field Values

CMD_SetFill

public static final byte CMD_SetFill

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Constant Field Values

CMD_SetFont

public static final byte CMD_SetFont

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Constant Field Values

CMD_SetLinePar

public static final byte CMD_SetLinePar

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Constant Field Values

Constructor Detail

XGDserver

public XGDserver(int port)

start a new XGD server on a specific port

Parameters:

port - TCP port to listen on

XGDserver

public XGDserver()

start a new XGD server on the default port

Method Detail

run

public void run()

main server method listening on port 1427 and serving clients. It dispatches new worker threads for each accepted connection.

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread

startServer

public static XGDserver startServer()

starts a new XGD server. Note that there can only be one active server at the time unless the TCP port number is changed.

Returns:

new XGD server instance

main

public static void main(java.lang.String[] args)

main method - calls startServer()

Parameters:

args - command line arguments (currently ignored)