/*
* #%L
* Gravia :: Container :: Tomcat :: Webapp
* %%
* Copyright (C) 2010 - 2014 JBoss by Red Hat
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
package org.jboss.gravia.container.tomcat.webapp;
import java.util.HashSet;
import java.util.Set;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import org.jboss.gravia.container.tomcat.WebAppContextListener;
import org.jboss.gravia.container.tomcat.support.ServletContextPropertiesProvider;
import org.jboss.gravia.container.tomcat.support.TomcatResourceInstaller;
import org.jboss.gravia.container.tomcat.support.TomcatRuntimeFactory;
import org.jboss.gravia.provision.ResourceInstaller;
import org.jboss.gravia.provision.spi.RuntimeEnvironment;
import org.jboss.gravia.runtime.Module;
import org.jboss.gravia.runtime.ModuleContext;
import org.jboss.gravia.runtime.ModuleException;
import org.jboss.gravia.runtime.Runtime;
import org.jboss.gravia.runtime.RuntimeLocator;
import org.jboss.gravia.runtime.ServiceRegistration;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
/**
* Activates the {@link Runtime} as part of the web app lifecycle.
*
* @author thomas.diesler@jboss.com
* @since 27-Nov-2013
*/
public class GraviaRuntimeActivator implements ServletContextListener {
private Set<ServiceRegistration<?>> registrations = new HashSet<ServiceRegistration<?>>();
@Override
public void contextInitialized(ServletContextEvent event) {
// Create the runtime
ServletContext servletContext = event.getServletContext();
ServletContextPropertiesProvider propsProvider = new ServletContextPropertiesProvider(servletContext);
Runtime runtime = RuntimeLocator.createRuntime(new TomcatRuntimeFactory(servletContext), propsProvider);
runtime.init();
// Register the {@link RuntimeEnvironment}, {@link ResourceInstaller} services
registerServices(servletContext, runtime);
// Install and start this webapp as a module
WebAppContextListener webappInstaller = new WebAppContextListener();
Module module = webappInstaller.installWebappModule(servletContext);
servletContext.setAttribute(Module.class.getName(), module);
try {
module.start();
} catch (ModuleException ex) {
throw new IllegalStateException(ex);
}
// HttpService integration
Module sysmodule = runtime.getModuleContext().getModule();
BundleContext bundleContext = sysmodule.adapt(Bundle.class).getBundleContext();
servletContext.setAttribute(BundleContext.class.getName(), bundleContext);
}
private void registerServices(ServletContext servletContext, Runtime runtime) {
RuntimeEnvironment environment = new RuntimeEnvironment(runtime).initDefaultContent();
TomcatResourceInstaller installer = new TomcatResourceInstaller(environment);
ModuleContext syscontext = runtime.getModuleContext();
registrations.add(syscontext.registerService(RuntimeEnvironment.class, environment, null));
registrations.add(syscontext.registerService(ResourceInstaller.class, installer, null));
}
@Override
public void contextDestroyed(ServletContextEvent event) {
for (ServiceRegistration<?> sreg : registrations) {
sreg.unregister();
}
}
}