/*
* Copyright 2009 Red Hat, Inc.
*
* Red Hat licenses this file to you 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.
*/
package org.jboss.netty.container.osgi;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
import org.jboss.netty.channel.ChannelFactory;
import org.jboss.netty.channel.local.DefaultLocalClientChannelFactory;
import org.jboss.netty.channel.local.DefaultLocalServerChannelFactory;
import org.jboss.netty.channel.local.LocalClientChannelFactory;
import org.jboss.netty.channel.local.LocalServerChannelFactory;
import org.jboss.netty.channel.socket.ClientSocketChannelFactory;
import org.jboss.netty.channel.socket.DatagramChannelFactory;
import org.jboss.netty.channel.socket.ServerSocketChannelFactory;
import org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory;
import org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory;
import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;
import org.jboss.netty.channel.socket.oio.OioClientSocketChannelFactory;
import org.jboss.netty.channel.socket.oio.OioDatagramChannelFactory;
import org.jboss.netty.channel.socket.oio.OioServerSocketChannelFactory;
import org.jboss.netty.logging.InternalLoggerFactory;
import org.jboss.netty.logging.OsgiLoggerFactory;
import org.jboss.netty.util.internal.ExecutorUtil;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceRegistration;
/**
* An OSGi {@link BundleActivator} that configures logging and registered
* all {@link ChannelFactory} implementations as OSGi services.
*
* @author The Netty Project (netty-dev@lists.jboss.org)
* @author Trustin Lee (tlee@redhat.com)
* @version $Rev: 1685 $, $Date: 2009-08-28 16:15:49 +0900 (금, 28 8 2009) $
*/
public class NettyBundleActivator implements BundleActivator {
private final List<ServiceRegistration> registrations =
new ArrayList<ServiceRegistration>();
private Executor executor;
private OsgiLoggerFactory loggerFactory;
public void start(BundleContext ctx) throws Exception {
// Switch the internal logger to the OSGi LogService.
loggerFactory = new OsgiLoggerFactory(ctx);
InternalLoggerFactory.setDefaultFactory(loggerFactory);
// Prepare the resources required for creating ChannelFactories.
Executor executor = this.executor = Executors.newCachedThreadPool();
// The default transport is NIO.
register(ctx,
new NioClientSocketChannelFactory(executor, executor),
ClientSocketChannelFactory.class);
register(ctx,
new NioServerSocketChannelFactory(executor, executor),
ServerSocketChannelFactory.class);
// ... except for the datagram transport.
register(ctx,
new OioDatagramChannelFactory(executor),
DatagramChannelFactory.class);
// Local transports
register(ctx,
new DefaultLocalClientChannelFactory(),
LocalClientChannelFactory.class);
register(ctx,
new DefaultLocalServerChannelFactory(),
LocalServerChannelFactory.class);
// Miscellaneous transports
register(ctx, new OioClientSocketChannelFactory(executor));
register(ctx, new OioServerSocketChannelFactory(executor, executor));
register(ctx, new NioDatagramChannelFactory(executor));
}
public void stop(BundleContext ctx) throws Exception {
unregisterAll();
if (executor != null) {
ExecutorUtil.terminate(executor);
executor = null;
}
if (loggerFactory != null) {
InternalLoggerFactory.setDefaultFactory(loggerFactory.getFallback());
loggerFactory.destroy();
loggerFactory = null;
}
}
private void register(BundleContext ctx, ChannelFactory factory, Class<?>... factoryTypes) {
Properties props = new Properties();
props.setProperty("category", "netty");
registrations.add(ctx.registerService(factory.getClass().getName(), factory, props));
for (Class<?> t: factoryTypes) {
registrations.add(ctx.registerService(t.getName(), factory, props));
}
}
private void unregisterAll() {
List<ServiceRegistration> registrationsCopy =
new ArrayList<ServiceRegistration>(registrations);
registrations.clear();
for (ServiceRegistration r: registrationsCopy) {
r.unregister();
}
}
}