org.opendaylight.capwap.fsm.CapwapDiscoveryServiceActor.java Source code

Introduction

Here is the source code for org.opendaylight.capwap.fsm.CapwapDiscoveryServiceActor.java

Source

/*
 * Copyright (c) 2015 Mahesh Govind 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.capwap.fsm;

import akka.actor.AbstractActor;
import akka.actor.AbstractLoggingFSM;
import akka.event.Logging;
import akka.event.LoggingAdapter;
import akka.japi.pf.ReceiveBuilder;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.socket.DatagramPacket;
import org.opendaylight.capwap.ODLCapwapMessage;
import org.opendaylight.capwap.utils.CapwapMessageCreator;

//This actor services discovery request . Sending Discovery response is a stateless action
// for better load handling one could have multiple instances of the same .

public class CapwapDiscoveryServiceActor extends AbstractActor {
    private final LoggingAdapter log = Logging.getLogger(context().system(), this);

    public CapwapDiscoveryServiceActor(String name) {
        log.info("Created Discovery Service Actor {}", name);

    }

    public CapwapDiscoveryServiceActor() {
    }

    {
        receive(ReceiveBuilder.match(CapwapEvent.class, e -> {
            log.info("Received String message: {}", e);
            handleDiscovery(e);

        }).matchAny(o -> log.info("received unknown message")).build());
    }

    void handleDiscovery(CapwapEvent e) {

        ODLCapwapMessage m = CapwapMessageCreator.createResponse(e.getdMessage());

        //Need to access configuration data base to create  discovery response

        //Need to access operational database to update discovery count
        ByteBuf buf = Unpooled.buffer();
        int len = m.header.encodeHeader(buf);
        m.ctrlMsg.encode(buf);
        //Create a Datagrampacket
        DatagramPacket packet = new DatagramPacket(buf, e.packet.sender());

        e.ctx.writeAndFlush(packet);

    }
}