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.juneau.microservice.resources;
018
019import org.apache.juneau.rest.annotation.*;
020import org.apache.juneau.rest.servlet.*;
021
022/**
023 * Provides the capability to shut down this REST microservice through a REST call.
024 *
025 * <h5 class='section'>See Also:</h5><ul>
026 *    <li class='link'><a class="doclink" href="https://juneau.apache.org/docs/topics/JuneauMicroserviceCoreBasics">juneau-microservice-core Basics</a>
027 * </ul>
028 *
029 * @serial exclude
030 */
031@Rest(
032   path="/shutdown",
033   title="Shut down this resource"
034)
035public class ShutdownResource extends BasicRestServlet {
036
037   private static final long serialVersionUID = 1L;
038
039   /**
040    * [GET /] - Shutdown this resource.
041    *
042    * @return The string <js>"OK"</js>.
043    */
044   @RestGet(path="/", description="Show contents of config file.")
045   public String shutdown() {
046      new Thread(
047         () -> {
048               try {
049                  Thread.sleep(1000);
050                  System.exit(0);
051               } catch (InterruptedException e) {
052                  e.printStackTrace();
053               }
054            }
055      ).start();
056      return "OK";
057   }
058}