2 * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.controller.netconf.util;
11 import javax.net.ssl.SSLContext;
12 import javax.net.ssl.SSLEngine;
14 import org.opendaylight.controller.netconf.api.NetconfMessage;
15 import org.opendaylight.controller.netconf.api.NetconfSession;
16 import org.opendaylight.controller.netconf.util.handler.FramingMechanismHandlerFactory;
17 import org.opendaylight.controller.netconf.util.handler.NetconfMessageAggregator;
18 import org.opendaylight.controller.netconf.util.messages.FramingMechanism;
19 import org.opendaylight.controller.netconf.util.messages.NetconfMessageFactory;
20 import org.opendaylight.protocol.framework.ProtocolHandlerFactory;
21 import org.opendaylight.protocol.framework.ProtocolMessageDecoder;
22 import org.opendaylight.protocol.framework.ProtocolMessageEncoder;
24 import com.google.common.base.Optional;
26 import io.netty.channel.ChannelHandler;
27 import io.netty.channel.socket.SocketChannel;
28 import io.netty.handler.ssl.SslHandler;
29 import io.netty.util.concurrent.Promise;
31 public abstract class AbstractChannelInitializer {
33 private final Optional<SSLContext> maybeContext;
34 private final NetconfHandlerFactory handlerFactory;
36 public AbstractChannelInitializer(Optional<SSLContext> maybeContext) {
37 this.maybeContext = maybeContext;
38 this.handlerFactory = new NetconfHandlerFactory(new NetconfMessageFactory());
41 public void initialize(SocketChannel ch, Promise<? extends NetconfSession> promise) {
42 if (maybeContext.isPresent()) {
46 ch.pipeline().addLast("aggregator", new NetconfMessageAggregator(FramingMechanism.EOM));
47 ch.pipeline().addLast(handlerFactory.getDecoders());
48 initializeAfterDecoder(ch, promise);
49 ch.pipeline().addLast("frameEncoder", FramingMechanismHandlerFactory.createHandler(FramingMechanism.EOM));
50 ch.pipeline().addLast(handlerFactory.getEncoders());
53 protected abstract void initializeAfterDecoder(SocketChannel ch, Promise<? extends NetconfSession> promise);
55 private void initSsl(SocketChannel ch) {
56 SSLEngine sslEngine = maybeContext.get().createSSLEngine();
57 initSslEngine(sslEngine);
58 final SslHandler handler = new SslHandler(sslEngine);
59 ch.pipeline().addLast("ssl", handler);
62 protected abstract void initSslEngine(SSLEngine sslEngine);
64 private static final class NetconfHandlerFactory extends ProtocolHandlerFactory<NetconfMessage> {
66 public NetconfHandlerFactory(final NetconfMessageFactory msgFactory) {
71 public ChannelHandler[] getEncoders() {
72 return new ChannelHandler[] { new ProtocolMessageEncoder(this.msgFactory) };
76 public ChannelHandler[] getDecoders() {
77 return new ChannelHandler[] { new ProtocolMessageDecoder(this.msgFactory) };