org.jboss.as.host.controller.HostControllerBootstrap Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.host.controller;
import java.util.concurrent.CountDownLatch;
import org.jboss.as.controller.ControlledProcessState;
import org.jboss.as.controller.ControlledProcessStateService;
import org.jboss.msc.service.ServiceContainer;
import org.jboss.msc.service.ServiceTarget;
/**
* Bootstrap of the HostController process.
*
* @author Emanuel Muckenhuber
* @author Darran Lofthouse
* @author Brian Stansberry (c) 2011 Red Hat Inc.
*/
public class HostControllerBootstrap {
private final ShutdownHook shutdownHook;
private final ServiceContainer serviceContainer;
private final HostControllerEnvironment environment;
private final byte[] authCode;
public HostControllerBootstrap(final HostControllerEnvironment environment, final byte[] authCode) {
this.environment = environment;
this.authCode = authCode;
this.shutdownHook = new ShutdownHook();
this.serviceContainer = shutdownHook.register();
}
/**
* Start the host controller services.
*
* @throws Exception
*/
public void bootstrap() throws Exception {
final HostRunningModeControl runningModeControl = environment.getRunningModeControl();
final ControlledProcessState processState = new ControlledProcessState(true);
shutdownHook.setControlledProcessState(processState);
ServiceTarget target = serviceContainer.subTarget();
ControlledProcessStateService.addService(target, processState);
final HostControllerService hcs = new HostControllerService(environment, runningModeControl, authCode, processState);
target.addService(HostControllerService.HC_SERVICE_NAME, hcs).install();
}
private static class ShutdownHook extends Thread {
private boolean down;
private ControlledProcessState processState;
private ServiceContainer container;
private ServiceContainer register() {
Runtime.getRuntime().addShutdownHook(this);
synchronized (this) {
if (!down) {
container = ServiceContainer.Factory.create("host-controller", false);
return container;
} else {
throw new IllegalStateException();
}
}
}
private synchronized void setControlledProcessState(final ControlledProcessState ps) {
this.processState = ps;
}
@Override
public void run() {
final ServiceContainer sc;
final ControlledProcessState ps;
synchronized (this) {
down = true;
sc = container;
ps = processState;
}
try {
if (ps != null) {
ps.setStopping();
}
} finally {
if (sc != null) {
final CountDownLatch latch = new CountDownLatch(1);
sc.addTerminateListener(new ServiceContainer.TerminateListener() {
@Override
public void handleTermination(Info info) {
latch.countDown();
}
});
sc.shutdown();
// wait for all services to finish.
for (;;) {
try {
latch.await();
break;
} catch (InterruptedException e) {
}
}
}
}
}
}
}