/*
* 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.httpservice;
import static org.jboss.as.osgi.OSGiLogger.LOGGER;
import static org.jboss.as.osgi.OSGiMessages.MESSAGES;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import javax.servlet.Servlet;
import org.jboss.as.osgi.OSGiMessages;
import org.jboss.as.server.ServerEnvironment;
import org.jboss.as.web.host.CommonWebServer;
import org.jboss.as.web.host.WebDeploymentController;
import org.jboss.as.web.host.WebHost;
import org.osgi.framework.Bundle;
import org.osgi.framework.ServiceFactory;
import org.osgi.framework.ServiceRegistration;
import org.osgi.service.http.HttpService;
import org.osgi.service.http.NamespaceException;
/**
* A {@link ServiceFactory} for {@link org.osgi.service.http.HttpService}
*
* @author Thomas.Diesler@jboss.com
* @author David Bosschaert
* @since 19-Jul-2012
*/
final class HttpServiceFactory implements ServiceFactory<HttpService> {
private final GlobalRegistry registry;
private final CommonWebServer webServer;
private final WebHost virtualHost;
private final ServerEnvironment serverEnvironment;
HttpServiceFactory(CommonWebServer webServer, WebHost virtualHost, ServerEnvironment serverEnvironment) {
this.registry = GlobalRegistry.INSTANCE;
this.webServer = webServer;
this.virtualHost = virtualHost;
this.serverEnvironment = serverEnvironment;
}
@Override
public HttpService getService(final Bundle bundle, final ServiceRegistration<HttpService> registration) {
synchronized (registry) {
return new HttpServiceImpl(serverEnvironment, webServer, virtualHost, bundle);
}
}
@Override
public void ungetService(Bundle bundle, ServiceRegistration<HttpService> registration, HttpService service) {
synchronized (registry) {
HttpServiceImpl httpService = (HttpServiceImpl) service;
for (Registration reg : registry.unregister(bundle)) {
httpService.unregisterInternal(reg);
}
}
}
static class GlobalRegistry {
static GlobalRegistry INSTANCE = new GlobalRegistry();
private Map<String, Registration> registrations = new HashMap<String, Registration>();
private GlobalRegistry() {
}
synchronized Registration register(String alias, Bundle bundle, WebDeploymentController context, Servlet servlet, Registration.Type type) throws NamespaceException {
if (exists(alias)) { throw new NamespaceException(OSGiMessages.MESSAGES.aliasMappingAlreadyExists(alias)); }
LOGGER.infoRegisterHttpServiceAlias(alias);
Registration result = new Registration(alias, bundle, context, servlet, type);
registrations.put(alias, result);
return result;
}
synchronized boolean contains(Servlet servlet) {
for (Registration reg : registrations.values()) {
if (servlet.equals(reg.getServlet())) { return true; }
}
return false;
}
synchronized boolean exists(String alias) {
return registrations.get(alias) != null;
}
synchronized Registration unregister(String alias, Bundle bundle) {
if (!exists(alias)) {
LOGGER.errorf(MESSAGES.aliasMappingDoesNotExist(alias));
return null;
}
Registration reg = registrations.get(alias);
if (bundle != reg.bundle) {
LOGGER.errorf(MESSAGES.aliasMappingNotOwnedByBundle(alias, bundle));
return null;
}
LOGGER.infoUnregisterHttpServiceAlias(alias);
return registrations.remove(reg.alias);
}
synchronized Set<Registration> unregister(Bundle bundle) {
Set<Registration> result = new HashSet<Registration>();
for (Registration reg : new HashSet<Registration>(registrations.values())) {
if (bundle == reg.bundle) {
registrations.remove(reg.alias);
result.add(reg);
}
}
return result;
}
}
static class Registration {
private final String alias;
private final Bundle bundle;
private final WebDeploymentController context;
private final Servlet servlet;
private final Type type;
Registration(String alias, Bundle bundle, WebDeploymentController context, Servlet servlet, Type type) {
this.alias = alias;
this.bundle = bundle;
this.context = context;
this.servlet = servlet;
this.type = type;
}
String getAlias() {
return alias;
}
Bundle getBundle() {
return bundle;
}
WebDeploymentController getContext() {
return context;
}
Servlet getServlet() {
return servlet;
}
public Type getType() {
return type;
}
@Override
public String toString() {
return "Registration [alias=" + alias + ",bundle=" + bundle + ",type=" + type + "]";
}
enum Type {
SERVLET, RESOURCE
}
}
}