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.client;
11 import com.google.common.base.Optional;
12 import com.google.common.base.Preconditions;
13 import io.netty.channel.EventLoopGroup;
14 import io.netty.channel.socket.SocketChannel;
15 import io.netty.util.HashedWheelTimer;
16 import io.netty.util.concurrent.Future;
17 import io.netty.util.concurrent.Promise;
18 import org.opendaylight.controller.netconf.api.NetconfMessage;
19 import org.opendaylight.controller.netconf.api.NetconfSession;
20 import org.opendaylight.controller.netconf.api.NetconfTerminationReason;
21 import org.opendaylight.controller.netconf.util.AbstractSslChannelInitializer;
22 import org.opendaylight.protocol.framework.AbstractDispatcher;
23 import org.opendaylight.protocol.framework.ReconnectStrategy;
24 import org.opendaylight.protocol.framework.SessionListener;
25 import org.opendaylight.protocol.framework.SessionListenerFactory;
26 import org.slf4j.Logger;
27 import org.slf4j.LoggerFactory;
29 import javax.net.ssl.SSLContext;
30 import javax.net.ssl.SSLEngine;
31 import java.io.Closeable;
32 import java.net.InetSocketAddress;
34 public class NetconfClientDispatcher extends AbstractDispatcher<NetconfClientSession, NetconfClientSessionListener> implements Closeable {
36 private static final Logger logger = LoggerFactory.getLogger(NetconfClient.class);
38 private final Optional<SSLContext> maybeContext;
39 private final NetconfClientSessionNegotiatorFactory negotatorFactory;
40 private final HashedWheelTimer timer;
42 public NetconfClientDispatcher(final Optional<SSLContext> maybeContext, EventLoopGroup bossGroup, EventLoopGroup workerGroup) {
43 super(bossGroup, workerGroup);
44 this.maybeContext = Preconditions.checkNotNull(maybeContext);
45 timer = new HashedWheelTimer();
46 this.negotatorFactory = new NetconfClientSessionNegotiatorFactory(timer);
49 public Future<NetconfClientSession> createClient(InetSocketAddress address,
50 final NetconfClientSessionListener sessionListener, ReconnectStrategy strat) {
52 return super.createClient(address, strat, new PipelineInitializer<NetconfClientSession>() {
55 public void initializeChannel(final SocketChannel ch, final Promise<NetconfClientSession> promise) {
56 initialize(ch, promise);
59 private void initialize(SocketChannel ch, Promise<NetconfClientSession> promise) {
60 new ClientSslChannelInitializer(maybeContext, negotatorFactory, sessionListener).initialize(ch, promise);
65 private static class ClientSslChannelInitializer extends AbstractSslChannelInitializer {
67 private final NetconfClientSessionNegotiatorFactory negotiatorFactory;
68 private final NetconfClientSessionListener sessionListener;
70 private ClientSslChannelInitializer(Optional<SSLContext> maybeContext,
71 NetconfClientSessionNegotiatorFactory negotiatorFactory, NetconfClientSessionListener sessionListener) {
73 this.negotiatorFactory = negotiatorFactory;
74 this.sessionListener = sessionListener;
78 protected void initializeAfterDecoder(SocketChannel ch, Promise<? extends NetconfSession> promise) {
79 ch.pipeline().addLast("negotiator", negotiatorFactory.getSessionNegotiator(new SessionListenerFactory() {
81 public SessionListener<NetconfMessage, NetconfClientSession, NetconfTerminationReason> getSessionListener() {
82 return sessionListener;
88 protected void initSslEngine(SSLEngine sslEngine) {
89 sslEngine.setUseClientMode(true);
97 } catch (Exception e) {
98 logger.debug("Ignoring exception while closing {}", timer, e);