LogInAction.java

/*******************************************************************************
 * Copyright (c) 1998, 2015 Oracle and/or its affiliates. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
 * which accompanies this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *     Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.tools.workbench.mappingsplugin.ui.db;

import java.sql.SQLException;

import javax.swing.JOptionPane;

import org.eclipse.persistence.tools.workbench.framework.action.AbstractEnablableFrameworkAction;
import org.eclipse.persistence.tools.workbench.framework.app.ApplicationNode;
import org.eclipse.persistence.tools.workbench.framework.context.WorkbenchContext;
import org.eclipse.persistence.tools.workbench.mappingsmodel.db.MWDatabase;
import org.eclipse.persistence.tools.workbench.mappingsmodel.db.MWLoginSpec;
import org.eclipse.persistence.tools.workbench.utility.string.StringTools;



final class LogInAction
    extends AbstractEnablableFrameworkAction
{

    LogInAction(WorkbenchContext context) {
        super(context);
    }

    protected void initialize() {
        super.initialize();
        initializeText("DATABASE_LOG_IN");
        initializeMnemonic("DATABASE_LOG_IN");
        initializeToolTipText("DATABASE_LOG_IN.toolTipText");
        initializeIcon("login");
    }


    protected String[] enabledPropertyNames() {
        return new String[] {MWDatabase.CONNECTED_PROPERTY};
    }

    protected boolean shouldBeEnabled(ApplicationNode selectedNode) {
        return !((MWDatabase) ((DatabaseNode) selectedNode).getValue()).isConnected();
    }

    protected void execute(ApplicationNode selectedNode) {
        MWDatabase database = (MWDatabase) selectedNode.getValue();
        if (!ableToLogin(database)) {
            return;
        }

        try {
            database.login();
        } catch (SQLException sqle) {

            String exceptionMessage = sqle.getMessage();
            StringBuffer dialogMessage = new StringBuffer(50);
            dialogMessage.append(exceptionMessage.substring(exceptionMessage.lastIndexOf(']') + 1));
            dialogMessage.append(StringTools.CR);
            dialogMessage.append(resourceRepository().getString("USER_NAME_OR_PASSWORD_COULD_BE_INVALID_MESSAGE"));

            JOptionPane.showMessageDialog(getWorkbenchContext().getCurrentWindow(),
                                          dialogMessage.toString(),
                                          resourceRepository().getString("ERROR_LOGGING_IN_TO_DATABASE.title"),
                                          JOptionPane.ERROR_MESSAGE);

        } catch (ClassNotFoundException cnfe) {

            String suggestion = resourceRepository().getString("JDBC_DRIVER_ON_CLASSPATH.message");

            JOptionPane.showMessageDialog(getWorkbenchContext().getCurrentWindow(),
                                          resourceRepository().getString("DATABASE_DRIVER_NOT_FOUND.message", new Object[] { cnfe.getMessage(), suggestion, StringTools.CR }),
                                          resourceRepository().getString("ERROR_LOGGING_IN_TO_DATABASE.title"),
                                          JOptionPane.ERROR_MESSAGE);

        }
    }

    private boolean ableToLogin(MWDatabase database) {
        if(database.isConnected()) {
            showErrorDialog(resourceRepository().getString("ALREADY_CONNECTED.message"));
        }
        MWLoginSpec login = database.getDevelopmentLoginSpec();
        if (login == null) {
            showErrorDialog(resourceRepository().getString("YOU_MUST_DEFINE_A_DEVELOPMENT_LOGIN.message"));
            return false;
        }
        String driverName = login.getDriverClassName();
        if (driverName == null || driverName.equals("")) {
            showErrorDialog(resourceRepository().getString("NO_DATABASE_DRIVER_SPECIFIED.message"));
            return false;
        }
        String url = login.getURL();
        if (url == null || url.equals("")) {
            showErrorDialog(resourceRepository().getString("NO_URL_SPECIFIED.message"));
            return false;
        }

        return true;
    }

    private void showErrorDialog(String message) {
        JOptionPane.showMessageDialog(getWorkbenchContext().getCurrentWindow(),
                                message,
                                resourceRepository().getString("ERROR_LOGGING_IN_TO_DATABASE.title"),
                                JOptionPane.ERROR_MESSAGE);
    }

}