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 java.net.InetSocketAddress;
  12
  13 import org.opendaylight.controller.netconf.api.NetconfDocumentedException;
  14 import org.opendaylight.controller.netconf.api.NetconfServerSessionPreferences;
  15 import org.opendaylight.controller.netconf.util.AbstractNetconfSessionNegotiator;
  16 import org.opendaylight.controller.netconf.util.messages.NetconfHelloMessage;
  17 import org.opendaylight.controller.netconf.util.messages.NetconfHelloMessageAdditionalHeader;
  18 import org.slf4j.Logger;
  19 import org.slf4j.LoggerFactory;
  20
  21 import com.google.common.base.Optional;
  22
  23 import io.netty.channel.Channel;
  24 import io.netty.util.Timer;
  25 import io.netty.util.concurrent.Promise;
  26
  27 public class NetconfServerSessionNegotiator extends
  28         AbstractNetconfSessionNegotiator<NetconfServerSessionPreferences, NetconfServerSession, NetconfServerSessionListener> {
  29
  30     static final Logger logger = LoggerFactory.getLogger(NetconfServerSessionNegotiator.class);
  31
  32     protected NetconfServerSessionNegotiator(NetconfServerSessionPreferences sessionPreferences,
  33             Promise<NetconfServerSession> promise, Channel channel, Timer timer, NetconfServerSessionListener sessionListener,
  34             long connectionTimeoutMillis) {
  35         super(sessionPreferences, promise, channel, timer, sessionListener, connectionTimeoutMillis);
  36     }
  37
  38     @Override
  39     protected void handleMessage(NetconfHelloMessage netconfMessage) throws NetconfDocumentedException {
  40         NetconfServerSession session = getSessionForHelloMessage(netconfMessage);
  41         replaceHelloMessageInboundHandler(session);
  42         // Negotiation successful after all non hello messages were processed
  43         negotiationSuccessful(session);
  44     }
  45
  46     @Override
  47     protected NetconfServerSession getSession(NetconfServerSessionListener sessionListener, Channel channel, NetconfHelloMessage message) {
  48         Optional<NetconfHelloMessageAdditionalHeader> additionalHeader = message.getAdditionalHeader();
  49
  50         NetconfHelloMessageAdditionalHeader parsedHeader;
  51         if (additionalHeader.isPresent()) {
  52             parsedHeader = additionalHeader.get();
  53         } else {
  54             InetSocketAddress inetSocketAddress = (InetSocketAddress) channel.localAddress();
  55             parsedHeader = new NetconfHelloMessageAdditionalHeader("unknown", inetSocketAddress.getHostString(), Integer.toString(inetSocketAddress.getPort()),
  56                     "tcp", "client");
  57         }
  58
  59         logger.debug("Additional header from hello parsed as {} from {}", parsedHeader, additionalHeader);
  60
  61         return new NetconfServerSession(sessionListener, channel, getSessionPreferences().getSessionId(), parsedHeader);
  62     }
  63
  64 }