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| Version: 9.4.28-SNAPSHOT</span></td><td style="width: 50%"></td></tr></table><div xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Shutdown Handler</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="moved-context-handler.html"><i class="fa fa-chevron-left" aria-hidden="true"></i> Previous</a> </td><th width="60%" align="center">Chapter 18. Provided Servlets, Filters, and Handlers<br><a accesskey="p" href="index.html"><i class="fa fa-home" aria-hidden="true"></i> Home</a></th><td width="20%" align="right"> <a accesskey="n" href="default-handler.html">Next <i class="fa fa-chevron-right" aria-hidden="true"></i></a></td></tr></table><hr></div><div xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times" class="jetty-callout"><h5 class="callout"><a href="http://www.webtide.com/">Contact the core Jetty developers at |
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| </p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="shutdown-handler"></a>Shutdown Handler</h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="section"><a href="shutdown-handler.html#shutdown-handler-metadata">Info</a></span></dt><dt><span class="section"><a href="shutdown-handler.html#shutdown-handler-usage">Usage</a></span></dt></dl></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="shutdown-handler-metadata"></a>Info</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">Classname: <code class="literal">org.eclipse.jetty.server.handler.ShutdownHandler</code></li><li class="listitem">Maven Artifact: org.eclipse.jetty:jetty-server</li><li class="listitem">Javadoc: <a class="link" href="http://www.eclipse.org/jetty/javadoc/9.4.28-SNAPSHOT/org/eclipse/jetty/server/handler/ShutdownHandler.html" target="_top">http://www.eclipse.org/jetty/javadoc/9.4.28-SNAPSHOT/org/eclipse/jetty/server/handler/ShutdownHandler.html</a></li></ul></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="shutdown-handler-usage"></a>Usage</h3></div></div></div><p>A handler that shuts the server down on a valid request. |
| This is used to perform "soft" restarts from Java. |
| If <code class="literal">_exitJvm</code> is set to true a hard <code class="literal">System.exit()</code> call is being made.</p><p>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.</p><pre xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times"><code> Server server = new Server(8080); |
| HandlerList handlers = new HandlerList(); |
| handlers.setHandlers(new Handler[] |
| { someOtherHandler, new ShutdownHandler(server,"secret password") }); |
| server.setHandler(handlers); |
| server.start();</code></pre><p>This is an example that you can use to call the shutdown handler from within java.</p><pre xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times"><code> 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); |
| } |
| }</code></pre></div></div><script type="text/javascript"> |
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