EDIT

package eu.etaxonomy.cdm.model.view.context;

import org.springframework.util.Assert;

/**

 * Class based heavily on InheritableThreadLocalSecurityContextHolderStrategy, part 

 * of spring-security, but instead binding a View object to the 

 * context.

 * 

 * @author ben

 * @author Ben Alex

 *

 */

public class InheritableThreadLocalAuditEventContextHolderStrategy implements

		AuditEventContextHolderStrategy {

	private static ThreadLocal contextHolder = new InheritableThreadLocal();

	public void clearContext() {

		contextHolder.set(null);

	}

	public AuditEventContext getContext() {

		if (contextHolder.get() == null) {

            contextHolder.set(new AuditEventContextImpl());

        }

        return (AuditEventContext) contextHolder.get();

	}

	public void setContext(AuditEventContext context) {

		Assert.notNull(context, "Only non-null AuditEventContext instances are permitted");

        contextHolder.set(context);

	}

}