opendaylight/netconf/netconf-client/src/main/java/org/opendaylight/controller/netconf/client/NetconfClientDispatcherImpl.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   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
   7  */
   8
   9 package org.opendaylight.controller.netconf.client;
  10
  11 import io.netty.channel.EventLoopGroup;
  12 import io.netty.channel.socket.SocketChannel;
  13 import io.netty.util.Timer;
  14 import io.netty.util.concurrent.Future;
  15 import io.netty.util.concurrent.Promise;
  16 import java.io.Closeable;
  17 import org.opendaylight.controller.netconf.client.conf.NetconfClientConfiguration;
  18 import org.opendaylight.controller.netconf.client.conf.NetconfReconnectingClientConfiguration;
  19 import org.opendaylight.protocol.framework.AbstractDispatcher;
  20 import org.slf4j.Logger;
  21 import org.slf4j.LoggerFactory;
  22
  23 public class NetconfClientDispatcherImpl extends AbstractDispatcher<NetconfClientSession, NetconfClientSessionListener>
  24         implements NetconfClientDispatcher, Closeable {
  25
  26     private static final Logger LOG = LoggerFactory.getLogger(NetconfClientDispatcherImpl.class);
  27
  28     private final Timer timer;
  29
  30     public NetconfClientDispatcherImpl(final EventLoopGroup bossGroup, final EventLoopGroup workerGroup, final Timer timer) {
  31         super(bossGroup, workerGroup);
  32         this.timer = timer;
  33     }
  34
  35     @Override
  36     public Future<NetconfClientSession> createClient(final NetconfClientConfiguration clientConfiguration) {
  37         switch (clientConfiguration.getProtocol()) {
  38         case TCP:
  39             return createTcpClient(clientConfiguration);
  40         case SSH:
  41             return createSshClient(clientConfiguration);
  42         }
  43         throw new IllegalArgumentException("Unknown client protocol " + clientConfiguration.getProtocol());
  44     }
  45
  46     @Override
  47     public Future<Void> createReconnectingClient(final NetconfReconnectingClientConfiguration clientConfiguration) {
  48         switch (clientConfiguration.getProtocol()) {
  49         case TCP:
  50             return createReconnectingTcpClient(clientConfiguration);
  51         case SSH:
  52             return createReconnectingSshClient(clientConfiguration);
  53         default:
  54             throw new IllegalArgumentException("Unknown client protocol " + clientConfiguration.getProtocol());
  55         }
  56     }
  57
  58     private Future<NetconfClientSession> createTcpClient(final NetconfClientConfiguration currentConfiguration) {
  59         LOG.debug("Creating TCP client with configuration: {}", currentConfiguration);
  60         return super.createClient(currentConfiguration.getAddress(), currentConfiguration.getReconnectStrategy(),
  61                 new PipelineInitializer<NetconfClientSession>() {
  62
  63                     @Override
  64                     public void initializeChannel(final SocketChannel ch, final Promise<NetconfClientSession> promise) {
  65                         initialize(ch, promise);
  66                     }
  67
  68                     private void initialize(final SocketChannel ch, final Promise<NetconfClientSession> promise) {
  69                         new TcpClientChannelInitializer(getNegotiatorFactory(currentConfiguration), currentConfiguration
  70                                 .getSessionListener()).initialize(ch, promise);
  71                     }
  72                 });
  73     }
  74
  75     private Future<Void> createReconnectingTcpClient(final NetconfReconnectingClientConfiguration currentConfiguration) {
  76         LOG.debug("Creating reconnecting TCP client with configuration: {}", currentConfiguration);
  77         final TcpClientChannelInitializer init = new TcpClientChannelInitializer(getNegotiatorFactory(currentConfiguration),
  78                 currentConfiguration.getSessionListener());
  79
  80         return super.createReconnectingClient(currentConfiguration.getAddress(), currentConfiguration.getConnectStrategyFactory(),
  81                 currentConfiguration.getReconnectStrategy(), new PipelineInitializer<NetconfClientSession>() {
  82                     @Override
  83                     public void initializeChannel(final SocketChannel ch, final Promise<NetconfClientSession> promise) {
  84                         init.initialize(ch, promise);
  85                     }
  86                 });
  87     }
  88
  89     private Future<NetconfClientSession> createSshClient(final NetconfClientConfiguration currentConfiguration) {
  90         LOG.debug("Creating SSH client with configuration: {}", currentConfiguration);
  91         return super.createClient(currentConfiguration.getAddress(), currentConfiguration.getReconnectStrategy(),
  92                 new PipelineInitializer<NetconfClientSession>() {
  93
  94                     @Override
  95                     public void initializeChannel(final SocketChannel ch,
  96                                                   final Promise<NetconfClientSession> sessionPromise) {
  97                         new SshClientChannelInitializer(currentConfiguration.getAuthHandler(),
  98                                 getNegotiatorFactory(currentConfiguration), currentConfiguration.getSessionListener())
  99                                 .initialize(ch, sessionPromise);
 100                     }
 101
 102                 });
 103     }
 104
 105     private Future<Void> createReconnectingSshClient(final NetconfReconnectingClientConfiguration currentConfiguration) {
 106         LOG.debug("Creating reconnecting SSH client with configuration: {}", currentConfiguration);
 107         final SshClientChannelInitializer init = new SshClientChannelInitializer(currentConfiguration.getAuthHandler(),
 108                 getNegotiatorFactory(currentConfiguration), currentConfiguration.getSessionListener());
 109
 110         return super.createReconnectingClient(currentConfiguration.getAddress(), currentConfiguration.getConnectStrategyFactory(), currentConfiguration.getReconnectStrategy(),
 111                 new PipelineInitializer<NetconfClientSession>() {
 112                     @Override
 113                     public void initializeChannel(final SocketChannel ch, final Promise<NetconfClientSession> promise) {
 114                         init.initialize(ch, promise);
 115                     }
 116                 });
 117     }
 118
 119     protected NetconfClientSessionNegotiatorFactory getNegotiatorFactory(final NetconfClientConfiguration cfg) {
 120         return new NetconfClientSessionNegotiatorFactory(timer, cfg.getAdditionalHeader(),
 121                 cfg.getConnectionTimeoutMillis());
 122     }
 123 }