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	/*
	* 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;
	}
	}

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