/*
* Copyright 2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.statemachine.config.configuration;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;
/**
* Spring {@link ApplicationListener} which hooks to {@code ContextRefreshedEvent}
* and tracks when was a last time context was refreshed.
*
* @author Janne Valkealahti
*
*/
public class StateMachineHandlerApplicationListener implements ApplicationListener<ContextRefreshedEvent> {
public final static String BEAN_NAME = "stateMachineHandlerApplicationListener";
private Long lastRefreshTime = null;
@Override
public void onApplicationEvent(ContextRefreshedEvent event) {
lastRefreshTime = System.currentTimeMillis();
}
/**
* Gets the last refresh time.
*
* @return the last refresh time or {@code NULL} if not yet refreshed.
*/
public Long getLastRefreshTime() {
return lastRefreshTime;
}
}