public class ThreadLocalUtil {
	private static final ThreadLocal<Map<String, Object>> threadLocal = new ThreadLocal() {
		protected Map<String, Object> initialValue() {
			return new HashMap(0);
		}
	};

	public static Map<String, Object> getThreadLocal() {
		return threadLocal.get();
	}

	public static Object get(String key) {
		Map map = (Map) threadLocal.get();
		return map.get(key);
	}

	public static Object get(String key, Object defaultValue) {
		Map map = (Map) threadLocal.get();
		return map.get(key) == null ? defaultValue : map.get(key);
	}

	public static void set(String key, Object value) {
		Map map = (Map) threadLocal.get();
		map.put(key, value);
	}

	public static void set(Map<String, Object> keyValueMap) {
		Map map = (Map) threadLocal.get();
		map.putAll(keyValueMap);
	}

	public static Object remove(String key) {
		Map map = (Map) threadLocal.get();
		return map.remove(key);
	}
	
}