001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.camel.main;
018
019import java.util.concurrent.CountDownLatch;
020import java.util.concurrent.atomic.AtomicBoolean;
021
022import org.apache.camel.CamelContext;
023import org.apache.camel.support.LifecycleStrategySupport;
024import org.slf4j.Logger;
025import org.slf4j.LoggerFactory;
026
027/**
028 * A {@link org.apache.camel.spi.LifecycleStrategy} to trigger shutdown of the Main JVM
029 * when {@link CamelContext} is stopped from JMX or its stop method is invoked from Java code.
030 */
031public class MainLifecycleStrategy extends LifecycleStrategySupport {
032
033    private static final Logger LOG = LoggerFactory.getLogger(MainLifecycleStrategy.class);
034    private final AtomicBoolean completed;
035    private final CountDownLatch latch;
036
037    public MainLifecycleStrategy(AtomicBoolean completed, CountDownLatch latch) {
038        this.completed = completed;
039        this.latch = latch;
040    }
041
042    @Override
043    public void onContextStop(CamelContext context) {
044        LOG.info("CamelContext: {} has been shutdown, triggering shutdown of the JVM.", context.getName());
045        // trigger stopping the Main
046        completed.set(true);
047        latch.countDown();
048    }
049}