/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt 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.service;
import static org.jboss.as.osgi.OSGiConstants.SERVICE_BASE_NAME;
import static org.jboss.as.osgi.OSGiLogger.LOGGER;
import static org.jboss.as.osgi.OSGiMessages.MESSAGES;
import java.util.LinkedHashMap;
import java.util.Map;
import org.jboss.as.controller.ServiceVerificationHandler;
import org.jboss.modules.Module;
import org.jboss.msc.service.AbstractService;
import org.jboss.msc.service.ServiceBuilder;
import org.jboss.msc.service.ServiceController;
import org.jboss.msc.service.ServiceController.Mode;
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.value.InjectedValue;
import org.jboss.osgi.framework.Services;
import org.jboss.osgi.framework.spi.AbstractBundleRevisionAdaptor;
import org.jboss.osgi.framework.spi.IntegrationServices;
import org.jboss.osgi.metadata.OSGiMetaData;
import org.jboss.osgi.resolver.XBundleRevision;
import org.jboss.osgi.resolver.XBundleRevisionBuilderFactory;
import org.jboss.osgi.resolver.XEnvironment;
import org.jboss.osgi.resolver.XResourceBuilder;
import org.osgi.framework.BundleContext;
/**
* A service that tracks module registrations.
*
* @author thomas.diesler@jboss.com
* @since 25-Jul-2012
*/
public class ModuleRegistrationTracker extends AbstractService<Void> {
public static final ServiceName MODULE_REGISTRATION_COMPLETE = SERVICE_BASE_NAME.append("module", "registration");
private final InjectedValue<BundleContext> injectedSystemContext = new InjectedValue<BundleContext>();
private final InjectedValue<XEnvironment> injectedEnvironment = new InjectedValue<XEnvironment>();
private final Map<Module, Registration> registrations = new LinkedHashMap<Module, Registration>();
public ServiceController<Void> install(ServiceTarget serviceTarget, ServiceVerificationHandler verificationHandler) {
ServiceBuilder<Void> builder = serviceTarget.addService(MODULE_REGISTRATION_COMPLETE, this);
builder.addDependency(Services.FRAMEWORK_CREATE, BundleContext.class, injectedSystemContext);
builder.addDependency(Services.ENVIRONMENT, XEnvironment.class, injectedEnvironment);
builder.addDependencies(IntegrationServices.BOOTSTRAP_BUNDLES_COMPLETE);
builder.addListener(verificationHandler);
builder.setInitialMode(Mode.ON_DEMAND);
return builder.install();
}
public synchronized void registerModule(Module module, OSGiMetaData metadata) {
BundleContext context = injectedSystemContext.getOptionalValue();
XEnvironment env = injectedEnvironment.getOptionalValue();
Registration reg = new Registration(module, metadata);
if (context != null && env != null) {
registerInternal(context, env, reg);
}
registrations.put(module, reg);
}
public synchronized void unregisterModule(Module module) {
BundleContext context = injectedSystemContext.getOptionalValue();
XEnvironment env = injectedEnvironment.getOptionalValue();
Registration reg = registrations.remove(module);
if (context != null && env != null && reg != null) {
unregisterInternal(env, reg);
}
}
public synchronized void start(StartContext startContext) throws StartException {
ServiceController<?> serviceController = startContext.getController();
LOGGER.tracef("Starting: %s in mode %s", serviceController.getName(), serviceController.getMode());
BundleContext syscontext = injectedSystemContext.getValue();
XEnvironment env = injectedEnvironment.getValue();
for (Registration reg : registrations.values()) {
registerInternal(syscontext, env, reg);
}
registrations.clear();
}
private XBundleRevision registerInternal(final BundleContext context, final XEnvironment env, final Registration reg) {
final OSGiMetaData metadata = reg.metadata;
final Module module = reg.module;
LOGGER.infoRegisterModule(module.getIdentifier());
XBundleRevisionBuilderFactory factory = new XBundleRevisionBuilderFactory() {
@Override
public XBundleRevision createResource() {
return new AbstractBundleRevisionAdaptor(context, module);
}
};
try {
XResourceBuilder builder = XBundleRevisionBuilderFactory.create(factory);
if (metadata != null) {
builder.loadFrom(metadata);
} else {
builder.loadFrom(module);
}
reg.brev = (XBundleRevision) builder.getResource();
env.installResources(reg.brev);
} catch (Throwable th) {
throw MESSAGES.illegalStateFailedToRegisterModule(th, module);
}
return reg.brev;
}
private void unregisterInternal(final XEnvironment env, final Registration reg) {
assert reg.brev != null : "BundleRevision not null";
LOGGER.infoUnregisterModule(reg.module.getIdentifier());
env.uninstallResources(reg.brev);
}
public static final class Registration {
private final OSGiMetaData metadata;
private final Module module;
private XBundleRevision brev;
Registration(Module module, OSGiMetaData metadata) {
this.metadata = metadata;
this.module = module;
}
}
}