/**
* Creates a dialog where the user can specify the location of the database,including the type of
* network connection (if this is a networked client)and IP address and port number; or search and
* select the database on a local drive if this is a standalone client.
*
* @param parent Defines the Component that is to be the parent of this dialog box. For
* information on how this is used, see <code>JOptionPane</code>
* @param connectionMode Specifies the type of connection (standalone or networked)
* @see JOptionPane
*/
public DatabaseLocationDialog(Frame parent, ApplicationMode connectionMode) {
configOptions = (new ConfigOptions(connectionMode));
configOptions.getObservable().addObserver(this);
// load saved configuration
SavedConfiguration config = SavedConfiguration.getSavedConfiguration();
// the port and connection type are irrelevant in standalone mode
if (connectionMode == ApplicationMode.STANDALONE_CLIENT) {
validPort = true;
validCnx = true;
networkType = ConnectionType.DIRECT;
location = config.getParameter(SavedConfiguration.DATABASE_LOCATION);
} else {
// there may not be a network connectivity type defined and, if
// not, we do not set a default - force the user to make a choice
// the at least for the first time they run this.
String tmp = config.getParameter(SavedConfiguration.NETWORK_TYPE);
if (tmp != null) {
try {
networkType = ConnectionType.valueOf(tmp);
configOptions.setNetworkConnection(networkType);
validCnx = true;
} catch (IllegalArgumentException e) {
log.warning("Unknown connection type: " + networkType);
}
}
// there is always at least a default port number, so we don't have
// to validate this.
port = config.getParameter(SavedConfiguration.SERVER_PORT);
configOptions.setPortNumberText(port);
validPort = true;
location = config.getParameter(SavedConfiguration.SERVER_ADDRESS);
}
// there may not be a default database location, so we had better
// validate before using the returned value.
if (location != null) {
configOptions.setLocationFieldText(location);
validDb = true;
}
options =
new JOptionPane(configOptions, JOptionPane.QUESTION_MESSAGE, JOptionPane.OK_CANCEL_OPTION);
connectButton.setActionCommand(CONNECT);
connectButton.addActionListener(this);
boolean allValid = validDb && validPort && validCnx;
connectButton.setEnabled(allValid);
exitButton.setActionCommand(EXIT);
exitButton.addActionListener(this);
options.setOptions(new Object[] {connectButton, exitButton});
dialog = options.createDialog(parent, TITLE);
dialog.setDefaultCloseOperation(JDialog.DO_NOTHING_ON_CLOSE);
dialog.addWindowListener(this);
dialog.setVisible(true);
}
