ZeroArgConstructorPreference.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.project;

import java.util.prefs.Preferences;
import javax.swing.JComponent;
import javax.swing.JOptionPane;

import org.eclipse.persistence.tools.workbench.framework.context.WorkbenchContext;
import org.eclipse.persistence.tools.workbench.framework.resources.ResourceRepository;
import org.eclipse.persistence.tools.workbench.framework.uitools.SwingComponentFactory;
import org.eclipse.persistence.tools.workbench.mappingsmodel.meta.MWClass;
import org.eclipse.persistence.tools.workbench.uitools.app.PropertyValueModel;
import org.eclipse.persistence.tools.workbench.uitools.app.SimplePropertyValueModel;
import org.eclipse.persistence.tools.workbench.utility.string.StringTools;



public final class ZeroArgConstructorPreference
{
    public static final String MAINTAIN_ZERO_ARGUMENT_CONSTRUCTOR_PREFERENCE = "mantain zero argument constructor";
        public static final String YES         = "true";
        public static final String NO         = "false";
        public static final String PROMPT     = "prompt";
        public static final String DEFAULT     = PROMPT;


    private ZeroArgConstructorPreference() {
        super();
    }

    public static void optionallyAddZeroArgumentConstructor(MWClass mwClass, WorkbenchContext context) {
        String maintainZeroArgCon =
            context.getApplicationContext().getPreferences().get(MAINTAIN_ZERO_ARGUMENT_CONSTRUCTOR_PREFERENCE, DEFAULT).intern();

        if (maintainZeroArgCon == YES || (maintainZeroArgCon == PROMPT && promptForResponse(mwClass, context))) {
            mwClass.addZeroArgumentConstructor();
        }
    }

    private static boolean promptForResponse(MWClass mwClass, WorkbenchContext context) {
        Preferences preferences = context.getApplicationContext().getPreferences();
        ResourceRepository resourceRepository = context.getApplicationContext().getResourceRepository();

        // build dialog panel
        String title =
            resourceRepository.getString("PREFERENCES.MAPPINGS.CLASS.MAINTAIN_ZERO_ARGUMENT_CONSTRUCTOR_DIALOG.title");
        String message =
            resourceRepository.getString(
                "PREFERENCES.MAPPINGS.CLASS.MAINTAIN_ZERO_ARGUMENT_CONSTRUCTOR_DIALOG.message",
                new Object[] {mwClass.getName(), StringTools.CR}
            );
        PropertyValueModel dontAskAgainHolder = new SimplePropertyValueModel(new Boolean(false));
        JComponent dontAskAgainPanel =
            SwingComponentFactory.buildDoNotAskAgainPanel(message, dontAskAgainHolder, resourceRepository);

        // prompt user for response
        int response =
            JOptionPane.showConfirmDialog(
                context.getCurrentWindow(),
                dontAskAgainPanel,
                title,
                JOptionPane.YES_NO_OPTION,
                JOptionPane.QUESTION_MESSAGE
            );

        if (dontAskAgainHolder.getValue().equals(Boolean.TRUE)) {
            String preference = PROMPT;

            if (response == JOptionPane.YES_OPTION) {
                preference = YES;
            }
            else if (response == JOptionPane.NO_OPTION) {
                preference = NO;
            }

            preferences.put(MAINTAIN_ZERO_ARGUMENT_CONSTRUCTOR_PREFERENCE, preference);
        }

        return response == JOptionPane.YES_OPTION;
    }
}