| // ======================================================================== |
| // Copyright (c) 1995-2017 Mort Bay Consulting Pty. Ltd. |
| // ======================================================================== |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| |
| [[shutdown-handler]] |
| === Shutdown Handler |
| |
| [[shutdown-handler-metadata]] |
| ==== Info |
| |
| * Classname: `org.eclipse.jetty.server.handler.ShutdownHandler` |
| * Maven Artifact: org.eclipse.jetty:jetty-server |
| * Javadoc: {JDURL}/org/eclipse/jetty/server/handler/ShutdownHandler.html |
| * Xref: {JXURL}/org/eclipse/jetty/server/handler/ShutdownHandler.html |
| |
| [[shutdown-handler-usage]] |
| ==== Usage |
| |
| A handler that shuts the server down on a valid request. |
| This is used to perform "soft" restarts from Java. |
| If `_exitJvm` is set to true a hard `System.exit()` call is being made. |
| |
| This is an example of how you can setup this handler directly with the Server. |
| It can also be added as a part of handler chain or collection. |
| |
| [source, java, subs="{sub-order}"] |
| ---- |
| Server server = new Server(8080); |
| HandlerList handlers = new HandlerList(); |
| handlers.setHandlers(new Handler[] |
| { someOtherHandler, new ShutdownHandler(server,"secret password") }); |
| server.setHandler(handlers); |
| server.start(); |
| ---- |
| |
| This is an example that you can use to call the shutdown handler from within java. |
| |
| [source, java, subs="{sub-order}"] |
| ---- |
| public static void attemptShutdown(int port, String shutdownCookie) { |
| try { |
| URL url = new URL("http://localhost:" + port + "/shutdown?token=" + shutdownCookie); |
| HttpURLConnection connection = (HttpURLConnection)url.openConnection(); |
| connection.setRequestMethod("POST"); |
| connection.getResponseCode(); |
| logger.info("Shutting down " + url + ": " + connection.getResponseMessage()); |
| } catch (SocketException e) { |
| logger.debug("Not running"); |
| // Okay - the server is not running |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| ---- |