issrg.acm
Class DiskSavingUtility

java.lang.Object
  issrg.acm.SavingUtility
      issrg.acm.DefaultSavingUtility
          issrg.acm.DiskSavingUtility

All Implemented Interfaces:

Utility, java.awt.event.ActionListener, java.util.EventListener

public class DiskSavingUtility
extends DefaultSavingUtility
implements java.awt.event.ActionListener

This is the default saving utility. You do not have to prescribe it in the configuration file. It will be loaded automatically, if no other utilities has been registered for Attribute Certificate saving purposes.

This utility saves the given Attribute Certificate to a file, which a user can pick from a dialog.

Version:

1.0

Author:

A.Otenko

Field Summary

static java.lang.String	AC_EXTENSION This is the default AC file extension
static javax.swing.filechooser.FileFilter	ace_filter
static java.io.File	dir

Fields inherited from class issrg.acm.DefaultSavingUtility

dialog, dialogMode, LOAD_MODE, modal_result, REVOKE_MODE, SAVE_MODE

Constructor Summary

DiskSavingUtility()

DiskSavingUtility(Registry where)

Method Summary

void	actionPerformed(java.awt.event.ActionEvent e)
void	approveSelection() This method should check, if the currently selected location is OK with the user (e.g.
void	delete() This method is invoked only after revoke().
java.awt.Component	getContentPane(java.util.Map Environment, int dialogMode) This method returns the Component that displays all the controls for the load/saving dialog.
AttributeCertificate	load() This method returns an Attribute Certificate loaded by the utility, as specified by its controls.
AttributeCertificate	revoke() This method returns an Attribute Certificate loaded for revocation by the utility, as specified by its controls.
void	save(byte[] ac) This method saves the Attribute Certificate to the location, specified by the utility's controls.

Methods inherited from class issrg.acm.DefaultSavingUtility

attachControlButtons, cancelDialog, load, revoke, save

Methods inherited from class issrg.acm.SavingUtility

registerMe

Methods inherited from class java.lang.Object

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

Field Detail

AC_EXTENSION

public static java.lang.String AC_EXTENSION

This is the default AC file extension

ace_filter

public static final javax.swing.filechooser.FileFilter ace_filter

dir

public static java.io.File dir

Constructor Detail

DiskSavingUtility

public DiskSavingUtility()

DiskSavingUtility

public DiskSavingUtility(Registry where)

Method Detail

getContentPane

public java.awt.Component getContentPane(java.util.Map Environment,
                                         int dialogMode)

Description copied from class: DefaultSavingUtility

This method returns the Component that displays all the controls for the load/saving dialog. The boolean flag actually tells whether the operation is load or save.

Specified by:

getContentPane in class DefaultSavingUtility

Parameters:

Environment - - the environment that allows the component to initialise its fields and controls

dialogMode - - set to one of LOAD_MODE, SAVE_MODE or REVOKE_MODE, depending on the required content pane for the dialog

Returns:

java.awt.Component that contains all the necessary controls (without Load/Save/Cancel buttons)

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent e)

Specified by:

actionPerformed in interface java.awt.event.ActionListener

save

public void save(byte[] ac)
          throws ACCreationException

Description copied from class: DefaultSavingUtility

This method saves the Attribute Certificate to the location, specified by the utility's controls.

Specified by:

save in class DefaultSavingUtility

Throws:

ACCreationException

load

public AttributeCertificate load()
                          throws ACCreationException

Description copied from class: DefaultSavingUtility

This method returns an Attribute Certificate loaded by the utility, as specified by its controls.

Specified by:

load in class DefaultSavingUtility

Returns:

issrg.ac.AttributeCertificate, loaded from the specified location; never null

Throws:

ACCreationException

revoke

public AttributeCertificate revoke()
                            throws ACCreationException

Description copied from class: DefaultSavingUtility

This method returns an Attribute Certificate loaded for revocation by the utility, as specified by its controls.

Specified by:

revoke in class DefaultSavingUtility

Returns:

issrg.ac.AttributeCertificate, loaded from the specified location; never null

Throws:

ACCreationException

delete

public void delete()
            throws ACCreationException

Description copied from class: SavingUtility

This method is invoked only after revoke(). It effectively tells the SavingUtility to delete the AC that has been selected during revoke() call.

Specified by:

delete in class SavingUtility

Throws:

ACCreationException - if anything went wrong and the AC could not be removed.

approveSelection

public void approveSelection()

Description copied from class: DefaultSavingUtility

This method should check, if the currently selected location is OK with the user (e.g. he doesn't mind overwriting a file, etc)

Override to ask questions or display error messages.

Overrides:

approveSelection in class DefaultSavingUtility