netconf/netconf-client/src/main/java/org/opendaylight/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.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.netconf.client.conf.NetconfClientConfiguration;
  18 import org.opendaylight.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     protected Timer getTimer() {
  36         return timer;
  37     }
  38
  39     @Override
  40     public Future<NetconfClientSession> createClient(final NetconfClientConfiguration clientConfiguration) {
  41         switch (clientConfiguration.getProtocol()) {
  42         case TCP:
  43             return createTcpClient(clientConfiguration);
  44         case SSH:
  45             return createSshClient(clientConfiguration);
  46         }
  47         throw new IllegalArgumentException("Unknown client protocol " + clientConfiguration.getProtocol());
  48     }
  49
  50     @Override
  51     public Future<Void> createReconnectingClient(final NetconfReconnectingClientConfiguration clientConfiguration) {
  52         switch (clientConfiguration.getProtocol()) {
  53         case TCP:
  54             return createReconnectingTcpClient(clientConfiguration);
  55         case SSH:
  56             return createReconnectingSshClient(clientConfiguration);
  57         }
  58         throw new IllegalArgumentException("Unknown client protocol " + clientConfiguration.getProtocol());
  59     }
  60
  61     private Future<NetconfClientSession> createTcpClient(final NetconfClientConfiguration currentConfiguration) {
  62         LOG.debug("Creating TCP client with configuration: {}", currentConfiguration);
  63         return super.createClient(currentConfiguration.getAddress(), currentConfiguration.getReconnectStrategy(),
  64                 new PipelineInitializer<NetconfClientSession>() {
  65
  66                     @Override
  67                     public void initializeChannel(final SocketChannel ch, final Promise<NetconfClientSession> promise) {
  68                         initialize(ch, promise);
  69                     }
  70
  71                     private void initialize(final SocketChannel ch, final Promise<NetconfClientSession> promise) {
  72                         new TcpClientChannelInitializer(getNegotiatorFactory(currentConfiguration), currentConfiguration
  73                                 .getSessionListener()).initialize(ch, promise);
  74                     }
  75                 });
  76     }
  77
  78     private Future<Void> createReconnectingTcpClient(final NetconfReconnectingClientConfiguration currentConfiguration) {
  79         LOG.debug("Creating reconnecting TCP client with configuration: {}", currentConfiguration);
  80         final TcpClientChannelInitializer init = new TcpClientChannelInitializer(getNegotiatorFactory(currentConfiguration),
  81                 currentConfiguration.getSessionListener());
  82
  83         return super.createReconnectingClient(currentConfiguration.getAddress(), currentConfiguration.getConnectStrategyFactory(),
  84                 currentConfiguration.getReconnectStrategy(), new PipelineInitializer<NetconfClientSession>() {
  85                     @Override
  86                     public void initializeChannel(final SocketChannel ch, final Promise<NetconfClientSession> promise) {
  87                         init.initialize(ch, promise);
  88                     }
  89                 });
  90     }
  91
  92     private Future<NetconfClientSession> createSshClient(final NetconfClientConfiguration currentConfiguration) {
  93         LOG.debug("Creating SSH client with configuration: {}", currentConfiguration);
  94         return super.createClient(currentConfiguration.getAddress(), currentConfiguration.getReconnectStrategy(),
  95                 new PipelineInitializer<NetconfClientSession>() {
  96
  97                     @Override
  98                     public void initializeChannel(final SocketChannel ch,
  99                                                   final Promise<NetconfClientSession> sessionPromise) {
 100                         new SshClientChannelInitializer(currentConfiguration.getAuthHandler(),
 101                                 getNegotiatorFactory(currentConfiguration), currentConfiguration.getSessionListener())
 102                                 .initialize(ch, sessionPromise);
 103                     }
 104
 105                 });
 106     }
 107
 108     private Future<Void> createReconnectingSshClient(final NetconfReconnectingClientConfiguration currentConfiguration) {
 109         LOG.debug("Creating reconnecting SSH client with configuration: {}", currentConfiguration);
 110         final SshClientChannelInitializer init = new SshClientChannelInitializer(currentConfiguration.getAuthHandler(),
 111                 getNegotiatorFactory(currentConfiguration), currentConfiguration.getSessionListener());
 112
 113         return super.createReconnectingClient(currentConfiguration.getAddress(), currentConfiguration.getConnectStrategyFactory(), currentConfiguration.getReconnectStrategy(),
 114                 new PipelineInitializer<NetconfClientSession>() {
 115                     @Override
 116                     public void initializeChannel(final SocketChannel ch, final Promise<NetconfClientSession> promise) {
 117                         init.initialize(ch, promise);
 118                     }
 119                 });
 120     }
 121
 122     protected NetconfClientSessionNegotiatorFactory getNegotiatorFactory(final NetconfClientConfiguration cfg) {
 123         return new NetconfClientSessionNegotiatorFactory(timer, cfg.getAdditionalHeader(),
 124                 cfg.getConnectionTimeoutMillis());
 125     }
 126 }