/*

 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package sun.tools.jconsole;

import java.util.HashMap;

import java.util.Map;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.SwingWorker;

import com.sun.tools.jconsole.JConsolePlugin;

/**

 * Proxy that shields GUI from plug-in exceptions.

 *

 */

final class ExceptionSafePlugin extends JConsolePlugin {

    private static boolean ignoreExceptions;

    private final JConsolePlugin plugin;

    public ExceptionSafePlugin(JConsolePlugin plugin) {

        this.plugin = plugin;

    }

    @Override

    public Map<String, JPanel> getTabs() {

        try {

            return plugin.getTabs();

        } catch (RuntimeException e) {

            handleException(e);

        }

        return new HashMap<>();

    }

    @Override

    public SwingWorker<?, ?> newSwingWorker() {

        try {

            return plugin.newSwingWorker();

        } catch (RuntimeException e) {

            handleException(e);

        }

        return null;

    }

    @Override

    public void dispose() {

        try {

            plugin.dispose();

        } catch (RuntimeException e) {

            handleException(e);

        }

    }

    public void executeSwingWorker(SwingWorker<?, ?> sw) {

        try {

            sw.execute();

        } catch (RuntimeException e) {

            handleException(e);

        }

    }

    private void handleException(Exception e) {

        if (JConsole.isDebug()) {

            System.err.println("Plug-in exception:");

            e.printStackTrace();

        } else {

            if (!ignoreExceptions) {

                showExceptionDialog(e);

            }

        }

    }

    private void showExceptionDialog(Exception e) {

        Object[] buttonTexts = {

            Messages.PLUGIN_EXCEPTION_DIALOG_BUTTON_OK,

            Messages.PLUGIN_EXCEPTION_DIALOG_BUTTON_EXIT,

            Messages.PLUGIN_EXCEPTION_DIALOG_BUTTON_IGNORE

        };

        String message = String.format(

            Messages.PLUGIN_EXCEPTION_DIALOG_MESSAGE,

            plugin.getClass().getSimpleName(),

            String.valueOf(e.getMessage())

        );

        int buttonIndex = JOptionPane.showOptionDialog(

            null,

            message,

            Messages.PLUGIN_EXCEPTION_DIALOG_TITLE,

            JOptionPane.YES_NO_CANCEL_OPTION,

            JOptionPane.ERROR_MESSAGE,

            null,

            buttonTexts,

            buttonTexts[0]

        );

        if (buttonIndex == 1) {

            System.exit(0);

        }

        ignoreExceptions = buttonIndex == 2;

    }

}