@Retention(value=RUNTIME)
@Target(value={TYPE,METHOD})
@ConditionalOnProperty(value="simba.zookeeper.enabled",
matchIfMissing=false,
havingValue="true")
@ConditionalOnClass(value=me.ahoo.simba.zookeeper.ZookeeperMutexContendServiceFactory.class)
public @interface ConditionalOnSimbaZookeeperEnabled