openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/connection/listener/OpenflowProtocolListenerImpl.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.openflowplugin.api.openflow.connection.ConnectionContext;
  11 import org.opendaylight.openflowplugin.api.openflow.connection.HandshakeContext;
  12 import org.opendaylight.openflowplugin.openflow.md.core.HandshakeStepWrapper;
  13 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.EchoRequestMessage;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.ErrorMessage;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.ExperimenterMessage;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemovedMessage;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.HelloMessage;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MultipartReplyMessage;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.OpenflowProtocolListener;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.PacketInMessage;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.PortStatusMessage;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 import com.google.common.base.Objects;
  26
  27 /**
  28  *
  29  */
  30 public class OpenflowProtocolListenerImpl implements OpenflowProtocolListener {
  31
  32     private static final Logger LOG = LoggerFactory.getLogger(OpenflowProtocolListenerImpl.class);
  33
  34     private ConnectionContext connectionContext;
  35     private HandshakeContext handshakeContext;
  36
  37     /**
  38      * @param connectionContext
  39      * @param handshakeContext
  40      */
  41     public OpenflowProtocolListenerImpl(ConnectionContext connectionContext,
  42             HandshakeContext handshakeContext) {
  43         this.connectionContext = connectionContext;
  44         this.handshakeContext = handshakeContext;
  45     }
  46
  47     @Override
  48     public void onEchoRequestMessage(EchoRequestMessage notification) {
  49         // TODO Auto-generated method stub
  50
  51     }
  52
  53     @Override
  54     public void onErrorMessage(ErrorMessage notification) {
  55         // TODO Auto-generated method stub
  56
  57     }
  58
  59     @Override
  60     public void onExperimenterMessage(ExperimenterMessage notification) {
  61         // TODO Auto-generated method stub
  62
  63     }
  64
  65     @Override
  66     public void onFlowRemovedMessage(FlowRemovedMessage notification) {
  67         // TODO Auto-generated method stub
  68
  69     }
  70
  71     @Override
  72     public void onHelloMessage(HelloMessage hello) {
  73         LOG.debug("processing HELLO.xid: {}", hello.getXid());
  74         if (connectionContext.getConnectionState() == null) {
  75             connectionContext.setConnectionState(ConnectionContext.CONNECTION_STATE.HANDSHAKING);
  76         }
  77
  78         if (checkState(ConnectionContext.CONNECTION_STATE.HANDSHAKING)) {
  79             HandshakeStepWrapper handshakeStepWrapper = new HandshakeStepWrapper(
  80                     hello, handshakeContext.getHandshakeManager(), connectionContext.getConnectionAdapter());
  81             handshakeContext.getHandshakePool().submit(handshakeStepWrapper);
  82         } else {
  83             //TODO: consider disconnecting of bad behaving device
  84         }
  85
  86     }
  87
  88     @Override
  89     public void onMultipartReplyMessage(MultipartReplyMessage notification) {
  90         // TODO Auto-generated method stub
  91
  92     }
  93
  94     @Override
  95     public void onPacketInMessage(PacketInMessage notification) {
  96         // TODO Auto-generated method stub
  97
  98     }
  99
 100     @Override
 101     public void onPortStatusMessage(PortStatusMessage notification) {
 102         // TODO Auto-generated method stub
 103
 104     }
 105
 106     /**
 107      * @param expectedState
 108      */
 109     protected boolean checkState(ConnectionContext.CONNECTION_STATE expectedState) {
 110         boolean verdict = true;
 111         if (! Objects.equal(connectionContext.getConnectionState(), expectedState)) {
 112             verdict = false;
 113             LOG.info("Expected state: {}, actual state: {}", expectedState,
 114                     connectionContext.getConnectionState());
 115         }
 116
 117         return verdict;
 118     }
 119
 120 }