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/*
 * This file is part of Geomajas, a component framework for building
 * rich Internet applications (RIA) with sophisticated capabilities for the
 * display, analysis and management of geographic information.
 * It is a building block that allows developers to add maps
 * and other geographic data capabilities to their web applications.
 *
 * Copyright 2008-2010 Geosparc, http://www.geosparc.com, Belgium
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see .
 */

package org.geomajas.spring;

/**
 * Object which holds the different thread scope.
 *
 * @author Joachim Van der Auwera
 */
public final class ThreadScopeContextHolder {

	private static ThreadLocal CONTEXT_HOLDER =
			new ThreadLocal() {
				protected ThreadScopeContext initialValue() {
					return new ThreadScopeContext();
				}
			};

	private ThreadScopeContextHolder() {
		// utility object, not allowed to create instances
	}

	/**
	 * Get the thread specific context.
	 *
	 * @return thread scoped context
	 */
	public static ThreadScopeContext getContext() {
		return CONTEXT_HOLDER.get();
	}

	/**
	 * Set the thread specific context.
	 *
	 * @param context thread scoped context
	 */
	public static void setContext(ThreadScopeContext context) {
		ThreadScopeContextHolder.CONTEXT_HOLDER.set(context);
	}

	public static void clear() {
		CONTEXT_HOLDER =
			new ThreadLocal() {
				protected ThreadScopeContext initialValue() {
					return new ThreadScopeContext();
				}
			};
	}
}