| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.rocketmq.eventbridge.adapter.runtime.boot.hook; |
| |
| import java.util.List; |
| import java.util.concurrent.CopyOnWriteArrayList; |
| |
| public abstract class AbstractStartAndShutdown implements StartAndShutdown { |
| |
| protected List<StartAndShutdown> startAndShutdownList = new CopyOnWriteArrayList<>(); |
| |
| protected void appendStartAndShutdown(StartAndShutdown startAndShutdown) { |
| this.startAndShutdownList.add(startAndShutdown); |
| } |
| |
| @Override |
| public void start() throws Exception { |
| for (StartAndShutdown startAndShutdown : startAndShutdownList) { |
| startAndShutdown.start(); |
| } |
| } |
| |
| @Override |
| public void shutdown() throws Exception { |
| int index = startAndShutdownList.size() - 1; |
| for (; index >= 0; index--) { |
| startAndShutdownList.get(index).shutdown(); |
| } |
| } |
| |
| public void appendStart(Start start) { |
| this.appendStartAndShutdown(new StartAndShutdown() { |
| @Override |
| public void shutdown() throws Exception { |
| |
| } |
| |
| @Override |
| public void start() throws Exception { |
| start.start(); |
| } |
| }); |
| } |
| |
| public void appendShutdown(Shutdown shutdown) { |
| this.appendStartAndShutdown(new StartAndShutdown() { |
| @Override |
| public void shutdown() throws Exception { |
| shutdown.shutdown(); |
| } |
| |
| @Override |
| public void start() throws Exception { |
| |
| } |
| }); |
| } |
| } |