NOS.system
Class NOSSystem

java.lang.Object
  NOS.system.NOSSystem

public class NOSSystem
extends java.lang.Object

Constructor Summary

NOSSystem(NOSApplet applet, java.lang.String user)
Creates a new NOSSystem object.

Method Summary

void	addStyleListener(NOSStyleListener list) Add a NOSStyleListener to the system.
void	appendLogMessage(java.lang.String message) Append a message to the system log.
NOSProcess	createProcess(java.lang.String jar, java.lang.String app, java.lang.String[] args) Create a new NOSProcess which will run a new application.
void	destroyProcess(java.lang.Integer id) Destory the NOSProcess with the given id.
void	displayError(java.lang.Exception e) Display a nice error message.
void	downloadFile(NOSFile source, java.io.File targetDir) Download a file or folder to the local computer.
void	editFileWithDefaultProgram(NOSFile file) Opens a file for editing using the default program as specified in "//settings/defaulteditprogs.rc"
java.applet.AppletContext	getAppletContext() Returns the AppletContext object for the NOS applet.
NOSClassLoader	getClassLoader() Returns the system classloader.
static NOSDesktop	getDesktop() Returns the one and only NOSDesktop object, there can be only one!
java.lang.String	getProperty(java.lang.String name) Get a system property string.
Style	getStyle() Returns the currently active Style.
static NOSSystem	getSystem() Returns the one and only NOSSystem object, there can be only one!
void	logout() Logout of the system.
void	openFileWithDefaultProgram(NOSFile file) Opens a file for viewing using the default program as specified in "//settings/defaultopenprogs.rc"
void	removeStyleListener(NOSStyleListener list) Remove a NOSStyleListener from the system.
void	setProperty(java.lang.String name, java.lang.String value) Set a system property string
void	setStyle(Style style) Changes the currently active style to that specified.
void	showControlPanel() Show the system control panel window.
void	start() Called when the system is created.
void	stop() Called when the browser wants to destroy the system
void	uploadFile(java.io.File source, NOSFile targetDir) Upload files and folders to NOS

Methods inherited from class java.lang.Object

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

Constructor Detail

NOSSystem

public NOSSystem(NOSApplet applet,
                 java.lang.String user)

Creates a new NOSSystem object.

Parameters:

applet - The NOSApplet object

user - The name of the user

Throws:

java.lang.RuntimeException - On failure

Method Detail

editFileWithDefaultProgram

public void editFileWithDefaultProgram(NOSFile file)

Opens a file for editing using the default program as specified in "//settings/defaulteditprogs.rc"

Parameters:

file - The file to be opened for editing

openFileWithDefaultProgram

public void openFileWithDefaultProgram(NOSFile file)

Opens a file for viewing using the default program as specified in "//settings/defaultopenprogs.rc"

Parameters:

file - The file to be opened for viewing

getClassLoader

public NOSClassLoader getClassLoader()

Returns the system classloader.

Returns:

The system class loader.

getSystem

public static NOSSystem getSystem()

Returns the one and only NOSSystem object, there can be only one!

Returns:

The NOSSystem object.

getDesktop

public static NOSDesktop getDesktop()

Returns the one and only NOSDesktop object, there can be only one!

Returns:

The NOSDesktop object.

getStyle

public Style getStyle()

Returns the currently active Style.

Returns:

The currently active Style.

setStyle

public void setStyle(Style style)

Changes the currently active style to that specified. Try to avoid using this method directly, use the NOSDesktop.setStyle method instead.

Parameters:

style - The new style to be applied.

addStyleListener

public void addStyleListener(NOSStyleListener list)

Add a NOSStyleListener to the system.

Parameters:

list - The style listener to be added.

removeStyleListener

public void removeStyleListener(NOSStyleListener list)

Remove a NOSStyleListener from the system.

Parameters:

list - The style listener to be removed.

getProperty

public java.lang.String getProperty(java.lang.String name)

Get a system property string.

Parameters:

name - The name of the property

Returns:

The value of the property

setProperty

public void setProperty(java.lang.String name,
                        java.lang.String value)

Set a system property string

Parameters:

name - The name of the property

value - The value of the property

getAppletContext

public java.applet.AppletContext getAppletContext()

Returns the AppletContext object for the NOS applet.

Returns:

The AppletContext object for the NOS applet.

logout

public void logout()

Logout of the system.

downloadFile

public void downloadFile(NOSFile source,
                         java.io.File targetDir)
                  throws java.lang.Exception

Download a file or folder to the local computer.

Parameters:

source - The source of the file

targetDir - The destination folder

Throws:

java.lang.Exception - On failure

uploadFile

public void uploadFile(java.io.File source,
                       NOSFile targetDir)
                throws java.lang.Exception

Upload files and folders to NOS

Parameters:

source - The source file/folder.

targetDir - The target folder.

Throws:

java.lang.Exception - On faliure

start

public void start()

Called when the system is created.

stop

public void stop()

Called when the browser wants to destroy the system

createProcess

public NOSProcess createProcess(java.lang.String jar,
                                java.lang.String app,
                                java.lang.String[] args)
                         throws java.lang.Exception

Create a new NOSProcess which will run a new application.

Parameters:

jar - The jar which the application is stored in.

app - The main-class name for the application.

args - The program arguments.

Returns:

The NOSProcess object that was created

Throws:

java.lang.Exception - On failure.

destroyProcess

public void destroyProcess(java.lang.Integer id)

Destory the NOSProcess with the given id.

Parameters:

id - The process id of the NOSProcess you want to destroy.

displayError

public void displayError(java.lang.Exception e)

Display a nice error message.

Parameters:

e - The exception object to be displayed.

appendLogMessage

public void appendLogMessage(java.lang.String message)

Append a message to the system log.

Parameters:

message - The message to be appeneded.

showControlPanel

public void showControlPanel()

Show the system control panel window.