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/*******************************************************************************
 * Copyright (c)  2009 Obeo.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Obeo - initial API and implementation
 *******************************************************************************/
package org.eclipse.papyrus.infra.discovery.ui;

import org.eclipse.papyrus.infra.core.log.LogHelper;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;

/**
 * Activator of the plugin. (Singleton instance)
 */
public class Activator extends AbstractUIPlugin {

	/** ID of the plugin */
	public static final String PLUGIN_ID = "org.eclipse.papyrus.infra.discovery.ui";

	/** singleton instance of the plugin */
	private static Activator plugin;

	/** logging system */
	public static LogHelper logHelper;

	/**
	 * The constructor
	 */
	public Activator() {
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public void start(BundleContext context) throws Exception {
		super.start(context);
		plugin = this;
		logHelper = new LogHelper(this);
	}

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

	/**
	 * Returns the shared instance
	 *
	 * @return the shared instance
	 */
	public static Activator getDefault() {
		return plugin;
	}

}

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