opendaylight/netconf/netconf-impl/src/main/java/org/opendaylight/controller/netconf/impl/NetconfServerSessionNegotiator.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.impl;
  10
  11 import com.google.common.base.Optional;
  12 import io.netty.channel.Channel;
  13 import io.netty.util.Timer;
  14 import io.netty.util.concurrent.Promise;
  15 import java.net.InetSocketAddress;
  16 import org.opendaylight.controller.netconf.api.NetconfDocumentedException;
  17 import org.opendaylight.controller.netconf.api.NetconfServerSessionPreferences;
  18 import org.opendaylight.controller.netconf.nettyutil.AbstractNetconfSessionNegotiator;
  19 import org.opendaylight.controller.netconf.util.messages.NetconfHelloMessage;
  20 import org.opendaylight.controller.netconf.util.messages.NetconfHelloMessageAdditionalHeader;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23
  24 public class NetconfServerSessionNegotiator extends
  25         AbstractNetconfSessionNegotiator<NetconfServerSessionPreferences, NetconfServerSession, NetconfServerSessionListener> {
  26
  27     static final Logger logger = LoggerFactory.getLogger(NetconfServerSessionNegotiator.class);
  28
  29     protected NetconfServerSessionNegotiator(NetconfServerSessionPreferences sessionPreferences,
  30             Promise<NetconfServerSession> promise, Channel channel, Timer timer, NetconfServerSessionListener sessionListener,
  31             long connectionTimeoutMillis) {
  32         super(sessionPreferences, promise, channel, timer, sessionListener, connectionTimeoutMillis);
  33     }
  34
  35     @Override
  36     protected void handleMessage(NetconfHelloMessage netconfMessage) throws NetconfDocumentedException {
  37         NetconfServerSession session = getSessionForHelloMessage(netconfMessage);
  38         replaceHelloMessageInboundHandler(session);
  39         // Negotiation successful after all non hello messages were processed
  40         negotiationSuccessful(session);
  41     }
  42
  43     @Override
  44     protected NetconfServerSession getSession(NetconfServerSessionListener sessionListener, Channel channel, NetconfHelloMessage message) {
  45         Optional<NetconfHelloMessageAdditionalHeader> additionalHeader = message.getAdditionalHeader();
  46
  47         NetconfHelloMessageAdditionalHeader parsedHeader;
  48         if (additionalHeader.isPresent()) {
  49             parsedHeader = additionalHeader.get();
  50         } else {
  51             InetSocketAddress inetSocketAddress = (InetSocketAddress) channel.localAddress();
  52             parsedHeader = new NetconfHelloMessageAdditionalHeader("unknown", inetSocketAddress.getHostString(), Integer.toString(inetSocketAddress.getPort()),
  53                     "tcp", "client");
  54         }
  55
  56         logger.debug("Additional header from hello parsed as {} from {}", parsedHeader, additionalHeader);
  57
  58         return new NetconfServerSession(sessionListener, channel, getSessionPreferences().getSessionId(), parsedHeader);
  59     }
  60
  61 }