wudsn-ide/com.wudsn.ide.base/src/com/wudsn/ide/base/BasePlugin.java

/**
 * Copyright (C) 2009 - 2021 <a href="https://www.wudsn.com" target="_top">Peter Dell</a>
 *
 * This file is part of WUDSN IDE.
 * 
 * WUDSN IDE is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 * 
 * WUDSN IDE 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 for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with WUDSN IDE.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.wudsn.ide.base;

import org.osgi.framework.BundleContext;

import com.wudsn.ide.base.common.AbstractIDEPlugin;

/**
 * The activator class controls the plug-in life cycle
 */
public final class BasePlugin extends AbstractIDEPlugin {

	/**
	 * The plugin id.
	 */
	public static final String ID = "com.wudsn.ide.base";

	/**
	 * The shared instance.
	 */
	private static BasePlugin plugin;

	/**
	 * Creates a new instance. Must be public for dynamic instantiation.
	 */
	public BasePlugin() {
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	protected String getPluginId() {
		return ID;
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public void start(BundleContext context) throws Exception {
		if (context != null) {
			super.start(context);
		}
		plugin = this;
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public void stop(BundleContext context) throws Exception {
		plugin = null;
		super.stop(context);
	}

	/**
	 * Gets the shared plugin instance
	 * 
	 * @return The plug-in, not <code>null</code>.
	 */
	public static BasePlugin getInstance() {
		if (plugin == null) {
			throw new IllegalStateException("Plugin not initialized or already stopped");
		}
		return plugin;
	}

}