openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/connection/listener/ConnectionReadyListenerImpl.java

   1 /**
   2  * Copyright (c) 2015 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 package org.opendaylight.openflowplugin.impl.connection.listener;
   9
  10 import org.opendaylight.openflowjava.protocol.api.connection.ConnectionReadyListener;
  11 import org.opendaylight.openflowplugin.api.openflow.connection.ConnectionContext;
  12 import org.opendaylight.openflowplugin.api.openflow.connection.HandshakeContext;
  13 import org.opendaylight.openflowplugin.openflow.md.core.HandshakeStepWrapper;
  14 import org.slf4j.Logger;
  15 import org.slf4j.LoggerFactory;
  16
  17 /**
  18  * oneshot listener - once connection is ready, initiate handshake (if not already started by device)
  19  */
  20 public class ConnectionReadyListenerImpl implements ConnectionReadyListener {
  21
  22     private static final Logger LOG = LoggerFactory.getLogger(ConnectionReadyListenerImpl.class);
  23
  24     private ConnectionContext connectionContext;
  25     private HandshakeContext handshakeContext;
  26
  27     /**
  28      * @param connectionContext
  29      * @param handshakeContext
  30      */
  31     public ConnectionReadyListenerImpl(ConnectionContext connectionContext,
  32             HandshakeContext handshakeContext) {
  33                 this.connectionContext = connectionContext;
  34                 this.handshakeContext = handshakeContext;
  35     }
  36
  37     @Override
  38     public void onConnectionReady() {
  39         LOG.debug("device is connected and ready-to-use (pipeline prepared)");
  40         if (connectionContext.getConnectionState() == null) {
  41             HandshakeStepWrapper handshakeStepWrapper = new HandshakeStepWrapper(
  42                     null, handshakeContext.getHandshakeManager(), connectionContext.getConnectionAdapter());
  43             handshakeContext.getHandshakePool().execute(handshakeStepWrapper);
  44             connectionContext.setConnectionState(ConnectionContext.CONNECTION_STATE.HANDSHAKING);
  45         } else {
  46             LOG.debug("already touched by hello message");
  47         }
  48     }
  49
  50 }