org.opendaylight.openflowplugin.learningswitch.LearningSwitchManagerSimpleImpl Maven / Gradle / Ivy
/*
* Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.openflowplugin.learningswitch;
import org.opendaylight.mdsal.binding.api.DataBroker;
import org.opendaylight.mdsal.binding.api.DataTreeChangeListener;
import org.opendaylight.mdsal.binding.api.DataTreeIdentifier;
import org.opendaylight.mdsal.binding.api.NotificationService;
import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketProcessingService;
import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketReceived;
import org.opendaylight.yangtools.concepts.ListenerRegistration;
import org.opendaylight.yangtools.concepts.Registration;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Listens to packetIn notification.
*
* - in HUB mode simply floods all switch ports (except ingress port)
* - in LSWITCH mode collects source MAC address of packetIn and bind it with ingress port.
* If target MAC address is already bound then a flow is created (for direct communication between
* corresponding MACs)
*
*/
public class LearningSwitchManagerSimpleImpl
implements DataTreeChangeListenerRegistrationHolder, LearningSwitchManager {
private static final Logger LOG = LoggerFactory.getLogger(LearningSwitchManagerSimpleImpl.class);
private NotificationService notificationService;
private PacketProcessingService packetProcessingService;
private DataBroker data;
private Registration packetInRegistration;
private ListenerRegistration dataTreeChangeListenerRegistration;
/**
* Sets the NotificationService.
*
* @param notificationService the notificationService to set
*/
@Override
public void setNotificationService(NotificationService notificationService) {
this.notificationService = notificationService;
}
/**
* Sets the PacketProcessingService.
*
* @param packetProcessingService the packetProcessingService to set
*/
@Override
public void setPacketProcessingService(
PacketProcessingService packetProcessingService) {
this.packetProcessingService = packetProcessingService;
}
/**
* Sets the DataBroker.
*/
@Override
public void setDataBroker(DataBroker broker) {
data = broker;
}
/**
* Starts learning switch.
*/
@Override
public void start() {
LOG.debug("start() -->");
FlowCommitWrapper dataStoreAccessor = new FlowCommitWrapperImpl(data);
LearningSwitchHandlerSimpleImpl learningSwitchHandler = new LearningSwitchHandlerSimpleImpl(dataStoreAccessor,
packetProcessingService, this);
packetInRegistration = notificationService.registerListener(PacketReceived.class, learningSwitchHandler);
WakeupOnNode wakeupListener = new WakeupOnNode();
wakeupListener.setLearningSwitchHandler(learningSwitchHandler);
final InstanceIdentifier instanceIdentifier = InstanceIdentifier.create(Nodes.class)
.child(Node.class)
.augmentation(FlowCapableNode.class)
.child(Table.class);
final DataTreeIdentifier dataTreeIdentifier =
DataTreeIdentifier.create(LogicalDatastoreType.OPERATIONAL, instanceIdentifier);
dataTreeChangeListenerRegistration = data.registerDataTreeChangeListener(dataTreeIdentifier, wakeupListener);
LOG.debug("start() <--");
}
/**
* Stops the learning switch.
*/
@Override
public void stop() {
LOG.debug("stop() -->");
//TODO: remove flow (created in #start())
packetInRegistration.close();
dataTreeChangeListenerRegistration.close();
LOG.debug("stop() <--");
}
@Override
public ListenerRegistration getDataTreeChangeListenerRegistration() {
return dataTreeChangeListenerRegistration;
}
}
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