org.eclipse.jetty.server.handler

Class ShutdownHandler

java.lang.Object

org.eclipse.jetty.util.component.AbstractLifeCycle

org.eclipse.jetty.util.component.AggregateLifeCycle

org.eclipse.jetty.server.handler.AbstractHandler

org.eclipse.jetty.server.handler.ShutdownHandler

All Implemented Interfaces:

Handler, Destroyable, Dumpable, LifeCycle

public class ShutdownHandler
extends AbstractHandler

A handler that shuts the server down on a valid request. Used to do "soft" restarts from Java. If _exitJvm ist set to true a hard System.exit() call is being made. This handler is a contribution from Johannes Brodwall: https://bugs.eclipse.org/bugs/show_bug.cgi?id=357687 Usage:

    Server server = new Server(8080);
    HandlerList handlers = new HandlerList();
    handlers.setHandlers(new Handler[]
    { someOtherHandler, new ShutdownHandler(server,"secret password") });
    server.setHandler(handlers);
    server.start();
   

   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);
        }
    }
  

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle

AbstractLifeCycle.AbstractLifeCycleListener

Nested classes/interfaces inherited from interface org.eclipse.jetty.util.component.LifeCycle

LifeCycle.Listener

Field Summary

Fields inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle

_listeners, FAILED, RUNNING, STARTED, STARTING, STOPPED, STOPPING

Constructor Summary

Constructors

Constructor and Description
ShutdownHandler(Server server, String shutdownToken) Creates a listener that lets the server be shut down remotely (but only from localhost).

Method Summary

Methods

Modifier and Type	Method and Description
protected String	getRemoteAddr(javax.servlet.http.HttpServletRequest request)
void	handle(String target, Request baseRequest, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Handle a request.
void	setExitJvm(boolean exitJvm)

Methods inherited from class org.eclipse.jetty.server.handler.AbstractHandler

destroy, doStart, doStop, dumpThis, getServer, setServer

Methods inherited from class org.eclipse.jetty.util.component.AggregateLifeCycle

addBean, addBean, contains, dump, dump, dump, dump, dump, dumpObject, dumpStdErr, getBean, getBeans, getBeans, isManaged, manage, removeBean, removeBeans, unmanage

Methods inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle

addLifeCycleListener, getState, getState, isFailed, isRunning, isStarted, isStarting, isStopped, isStopping, removeLifeCycleListener, start, stop

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.eclipse.jetty.util.component.LifeCycle

addLifeCycleListener, isFailed, isRunning, isStarted, isStarting, isStopped, isStopping, removeLifeCycleListener, start, stop

Constructor Detail

ShutdownHandler

public ShutdownHandler(Server server,
               String shutdownToken)

Creates a listener that lets the server be shut down remotely (but only from localhost).

Parameters:

server - the Jetty instance that should be shut down

shutdownToken - a secret password to avoid unauthorized shutdown attempts

Method Detail

handle

public void handle(String target,
          Request baseRequest,
          javax.servlet.http.HttpServletRequest request,
          javax.servlet.http.HttpServletResponse response)
            throws IOException,
                   javax.servlet.ServletException

Description copied from interface: Handler

Handle a request.

Parameters:

target - The target of the request - either a URI or a name.

baseRequest - The original unwrapped request object.

request - The request either as the Request object or a wrapper of that request. The AbstractHttpConnection.getCurrentConnection() method can be used access the Request object if required.

response - The response as the Response object or a wrapper of that request. The AbstractHttpConnection.getCurrentConnection() method can be used access the Response object if required.

Throws:

IOException

javax.servlet.ServletException

getRemoteAddr

protected String getRemoteAddr(javax.servlet.http.HttpServletRequest request)

setExitJvm

public void setExitJvm(boolean exitJvm)