2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
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
9 package org.opendaylight.openflowplugin.impl.connection.listener;
11 import com.google.common.util.concurrent.FutureCallback;
12 import com.google.common.util.concurrent.Futures;
13 import com.google.common.util.concurrent.ListenableFuture;
14 import com.google.common.util.concurrent.MoreExecutors;
15 import org.opendaylight.openflowplugin.api.openflow.connection.ConnectionContext;
16 import org.opendaylight.openflowplugin.api.openflow.connection.ConnectionStatus;
17 import org.opendaylight.openflowplugin.api.openflow.connection.HandshakeContext;
18 import org.opendaylight.openflowplugin.api.openflow.device.handlers.DeviceConnectedHandler;
19 import org.opendaylight.openflowplugin.api.openflow.md.core.HandshakeListener;
20 import org.opendaylight.openflowplugin.impl.statistics.ofpspecific.SessionStatistics;
21 import org.opendaylight.openflowplugin.openflow.md.util.InventoryDataServiceUtil;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.BarrierInput;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.BarrierInputBuilder;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.BarrierOutput;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetFeaturesOutput;
26 import org.opendaylight.yangtools.yang.common.RpcResult;
27 import org.slf4j.Logger;
28 import org.slf4j.LoggerFactory;
30 public class HandshakeListenerImpl implements HandshakeListener {
32 private static final Logger LOG = LoggerFactory.getLogger(HandshakeListenerImpl.class);
33 private static final Logger OF_EVENT_LOG = LoggerFactory.getLogger("OfEventLog");
35 private final ConnectionContext connectionContext;
36 private final DeviceConnectedHandler deviceConnectedHandler;
37 private HandshakeContext handshakeContext;
42 * @param connectionContext - connection context
43 * @param deviceConnectedHandler - device connected handler
45 public HandshakeListenerImpl(final ConnectionContext connectionContext,
46 final DeviceConnectedHandler deviceConnectedHandler) {
47 this.connectionContext = connectionContext;
48 this.deviceConnectedHandler = deviceConnectedHandler;
52 public void onHandshakeSuccessful(final GetFeaturesOutput featureOutput, final Short version) {
53 if (LOG.isDebugEnabled()) {
54 LOG.debug("handshake succeeded: {}", connectionContext.getConnectionAdapter().getRemoteAddress());
56 OF_EVENT_LOG.debug("Connect, Node: {}", featureOutput.getDatapathId());
57 this.handshakeContext.close();
58 connectionContext.changeStateToWorking();
59 connectionContext.setFeatures(featureOutput);
60 connectionContext.setNodeId(InventoryDataServiceUtil.nodeIdFromDatapathId(featureOutput.getDatapathId()));
61 connectionContext.handshakeSuccessful();
63 // fire barrier in order to sweep all handshake and posthandshake messages before continue
64 final ListenableFuture<RpcResult<BarrierOutput>> barrier = fireBarrier(version, 0L);
65 Futures.addCallback(barrier, addBarrierCallback(), MoreExecutors.directExecutor());
68 private FutureCallback<RpcResult<BarrierOutput>> addBarrierCallback() {
69 return new FutureCallback<RpcResult<BarrierOutput>>() {
71 @SuppressWarnings("checkstyle:IllegalCatch")
72 public void onSuccess(final RpcResult<BarrierOutput> result) {
73 if (LOG.isDebugEnabled()) {
74 LOG.debug("succeeded by getting sweep barrier after post-handshake for device {}",
75 connectionContext.getDeviceInfo());
78 ConnectionStatus connectionStatusResult = deviceConnectedHandler.deviceConnected(connectionContext);
79 if (connectionStatusResult != ConnectionStatus.MAY_CONTINUE) {
80 connectionContext.closeConnection(false);
82 SessionStatistics.countEvent(connectionContext.getDeviceInfo().toString(),
83 SessionStatistics.ConnectionStatus.CONNECTION_CREATED);
84 } catch (final Exception e) {
85 LOG.warn("initial processing failed for device {}", connectionContext.getDeviceInfo(), e);
86 SessionStatistics.countEvent(connectionContext.getDeviceInfo().toString(),
87 SessionStatistics.ConnectionStatus.CONNECTION_DISCONNECTED_BY_OFP);
88 connectionContext.closeConnection(true);
93 public void onFailure(final Throwable throwable) {
94 LOG.warn("failed to get sweep barrier after post-handshake for device {}",
95 connectionContext.getDeviceInfo(), throwable);
96 connectionContext.closeConnection(false);
101 private ListenableFuture<RpcResult<BarrierOutput>> fireBarrier(final Short version, final long xid) {
102 final BarrierInput barrierInput = new BarrierInputBuilder()
106 return this.connectionContext.getConnectionAdapter().barrier(barrierInput);
110 public void onHandshakeFailure() {
111 if (LOG.isDebugEnabled()) {
112 LOG.debug("handshake failed: {}", this.connectionContext.getConnectionAdapter().getRemoteAddress());
114 this.handshakeContext.close();
115 this.connectionContext.closeConnection(false);
119 public void setHandshakeContext(final HandshakeContext handshakeContext) {
120 this.handshakeContext = handshakeContext;