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* JBoss, Home of Professional Open Source.
* Copyright 2010, 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.osgi.deployment;
import org.jboss.msc.service.AbstractServiceListener;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.ServiceBuilder;
import org.jboss.msc.service.ServiceContainer;
import org.jboss.msc.service.ServiceController;
import org.jboss.msc.service.ServiceController.Mode;
import org.jboss.msc.service.ServiceController.State;
import org.jboss.msc.service.ServiceName;
import org.jboss.msc.service.ServiceTarget;
import org.jboss.msc.service.StartContext;
import org.jboss.msc.service.StartException;
import org.jboss.msc.service.StopContext;
import org.jboss.msc.value.InjectedValue;
import org.jboss.osgi.deployment.deployer.Deployment;
import org.jboss.osgi.framework.Services;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleException;
import org.osgi.service.packageadmin.PackageAdmin;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import static org.jboss.as.osgi.OSGiLogger.ROOT_LOGGER;
import static org.jboss.as.osgi.service.FrameworkBootstrapService.FRAMEWORK_BASE_NAME;
import static org.osgi.service.packageadmin.PackageAdmin.BUNDLE_TYPE_FRAGMENT;
/**
* A service that collects installed bundle services and starts them when all collected bundles were installed in the framework.
*
* @author Thomas.Diesler@jboss.com
* @since 30-Mar-2011
*/
public class BundleStartTracker implements Service<BundleStartTracker> {
public static final ServiceName SERVICE_NAME = FRAMEWORK_BASE_NAME.append("starttracker");
private final InjectedValue<PackageAdmin> injectedPackageAdmin = new InjectedValue<PackageAdmin>();
private final Map<ServiceName, Tuple> pendingServices = new ConcurrentHashMap<ServiceName, Tuple>();
private final Map<ServiceName, Tuple> startedServices = new ConcurrentHashMap<ServiceName, Tuple>();
private volatile ServiceContainer serviceContainer;
public static final ServiceController<?> addService(ServiceTarget serviceTarget) {
BundleStartTracker service = new BundleStartTracker();
ServiceBuilder<BundleStartTracker> builder = serviceTarget.addService(SERVICE_NAME, service);
builder.addDependency(Services.PACKAGE_ADMIN, PackageAdmin.class, service.injectedPackageAdmin);
builder.setInitialMode(Mode.PASSIVE);
return builder.install();
}
private BundleStartTracker() {
}
@Override
public void start(StartContext context) throws StartException {
ServiceController<?> controller = context.getController();
ROOT_LOGGER.debugf("Starting: %s in mode %s", controller.getName(), controller.getMode());
serviceContainer = context.getController().getServiceContainer();
}
@Override
public void stop(StopContext context) {
ServiceController<?> controller = context.getController();
ROOT_LOGGER.debugf("Stopping: %s in mode %s", controller.getName(), controller.getMode());
}
@Override
public BundleStartTracker getValue() throws IllegalStateException {
return this;
}
@SuppressWarnings("unchecked")
void addInstalledBundle(ServiceName serviceName, Deployment deployment) {
ServiceController<Bundle> controller = (ServiceController<Bundle>) serviceContainer.getRequiredService(serviceName);
pendingServices.put(serviceName, new Tuple(controller, deployment));
controller.addListener(new AbstractServiceListener<Bundle>() {
@Override
public void listenerAdded(ServiceController<? extends Bundle> controller) {
State state = controller.getState();
if (state == State.UP || state == State.START_FAILED)
processService(controller);
}
@Override
public void transition(final ServiceController<? extends Bundle> controller, final ServiceController.Transition transition) {
if (transition.getBefore() == ServiceController.Substate.STARTING) {
switch (transition.getAfter()) {
case UP:
ServiceName key = controller.getName();
Tuple value = pendingServices.get(key);
startedServices.put(key, value);
// fall thru
case START_FAILED:
processService(controller);
}
}
}
private void processService(ServiceController<? extends Bundle> controller) {
controller.removeListener(this);
Map<ServiceName, Tuple> bundlesToStart = null;
synchronized (this) {
ServiceName key = controller.getName();
pendingServices.remove(key);
if (pendingServices.isEmpty()) {
bundlesToStart = new HashMap<ServiceName, Tuple>(startedServices);
startedServices.clear();
}
}
if (bundlesToStart != null) {
PackageAdmin packageAdmin = injectedPackageAdmin.getValue();
for (Tuple tuple : bundlesToStart.values()) {
Bundle bundle = tuple.controller.getValue();
Deployment dep = tuple.deployment;
if (dep.isAutoStart()) {
try {
int bundleType = packageAdmin.getBundleType(bundle);
if (bundleType != BUNDLE_TYPE_FRAGMENT) {
bundle.start(Bundle.START_TRANSIENT | Bundle.START_ACTIVATION_POLICY);
}
} catch (BundleException ex) {
ROOT_LOGGER.cannotStart(ex, bundle);
}
}
}
}
}
});
}
private static final class Tuple {
private ServiceController<? extends Bundle> controller;
private Deployment deployment;
Tuple(ServiceController<? extends Bundle> controller, Deployment deployment) {
this.controller = controller;
this.deployment = deployment;
}
}
}