org.opendaylight.openflowplugin.learningswitch.multi.PacketInDispatcherImpl Maven / Gradle / Ivy
/*
* Copyright (c) 2014 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.multi;
import java.util.HashMap;
import java.util.Map;
import org.opendaylight.mdsal.binding.api.NotificationService.Listener;
import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketReceived;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
public class PacketInDispatcherImpl implements Listener {
private final Map, Listener> handlerMapping = new HashMap<>();
@Override
public void onNotification(PacketReceived notification) {
// find corresponding handler
/*
* Notification contains reference to ingress port
* in a form of path in inventory: /nodes/node/node-connector
*
* In order to get path we shorten path to the first node reference
* by using firstIdentifierOf helper method provided by InstanceIdentifier,
* this will effectively shorten the path to /nodes/node.
*/
InstanceIdentifier ingressPort = notification.getIngress().getValue();
InstanceIdentifier nodeOfPacket = ingressPort.firstIdentifierOf(Node.class);
/**
* We lookup up the the packet-in listener for this node.
*/
Listener nodeHandler = handlerMapping.get(nodeOfPacket);
/**
* If we have packet-processing listener, we delegate notification.
*/
if (nodeHandler != null) {
nodeHandler.onNotification(notification);
}
}
public Map, Listener> getHandlerMapping() {
return handlerMapping;
}
}