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.messages.NetconfMessageFactory;
17 import org.opendaylight.protocol.framework.ProtocolHandlerFactory;
18 import org.opendaylight.protocol.framework.ProtocolMessageDecoder;
19 import org.opendaylight.protocol.framework.ProtocolMessageEncoder;
21 import com.google.common.base.Optional;
23 import io.netty.channel.ChannelHandler;
24 import io.netty.channel.socket.SocketChannel;
25 import io.netty.handler.ssl.SslHandler;
26 import io.netty.util.concurrent.Promise;
28 public abstract class AbstractChannelInitializer {
30 private final Optional<SSLContext> maybeContext;
31 private final NetconfHandlerFactory handlerFactory;
33 public AbstractChannelInitializer(Optional<SSLContext> maybeContext) {
34 this.maybeContext = maybeContext;
35 this.handlerFactory = new NetconfHandlerFactory(new NetconfMessageFactory());
38 public void initialize(SocketChannel ch, Promise<? extends NetconfSession> promise) {
39 if (maybeContext.isPresent()) {
43 ch.pipeline().addLast("frameDecoder", NetconfMessageFactory.getDelimiterFrameDecoder());
44 ch.pipeline().addLast(handlerFactory.getDecoders());
45 initializeAfterDecoder(ch, promise);
46 ch.pipeline().addLast(handlerFactory.getEncoders());
49 protected abstract void initializeAfterDecoder(SocketChannel ch, Promise<? extends NetconfSession> promise);
51 private void initSsl(SocketChannel ch) {
52 SSLEngine sslEngine = maybeContext.get().createSSLEngine();
53 initSslEngine(sslEngine);
54 final SslHandler handler = new SslHandler(sslEngine);
55 ch.pipeline().addLast("ssl", handler);
58 protected abstract void initSslEngine(SSLEngine sslEngine);
60 private static final class NetconfHandlerFactory extends ProtocolHandlerFactory<NetconfMessage> {
62 public NetconfHandlerFactory(final NetconfMessageFactory msgFactory) {
67 public ChannelHandler[] getEncoders() {
68 return new ChannelHandler[] { new ProtocolMessageEncoder(this.msgFactory) };
72 public ChannelHandler[] getDecoders() {
73 return new ChannelHandler[] { new ProtocolMessageDecoder(this.msgFactory) };