com.github.sdnwiselab.sdnwise.controller.ControllerRing Maven / Gradle / Ivy

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/*
 * Copyright (C) 2015 Seb
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 */
package com.github.sdnwiselab.sdnwise.controller;

import com.github.sdnwiselab.sdnwise.adapter.Adapter;
import static com.github.sdnwiselab.sdnwise.flowtable.FlowTableAction.SDN_WISE_FORWARD_UNICAST;
import com.github.sdnwiselab.sdnwise.flowtable.FlowTableEntry;
import static com.github.sdnwiselab.sdnwise.flowtable.FlowTableWindow.SDN_WISE_EQUAL_OR_LESS;
import static com.github.sdnwiselab.sdnwise.flowtable.FlowTableWindow.SDN_WISE_PACKET;
import static com.github.sdnwiselab.sdnwise.flowtable.FlowTableWindow.SDN_WISE_SIZE_1;
import com.github.sdnwiselab.sdnwise.packet.NetworkPacket;
import static com.github.sdnwiselab.sdnwise.packet.NetworkPacket.SDN_WISE_NXHOP_H;
import static com.github.sdnwiselab.sdnwise.packet.NetworkPacket.SDN_WISE_TYPE;
import com.github.sdnwiselab.sdnwise.packet.ResponsePacket;

/**
 *
 * @author Seb
 */
public class ControllerRing extends ControllerStatic {

    public ControllerRing(ControllerId id, Adapter lower, NetworkGraph networkGraph) {
        super(id, lower, networkGraph);
        computeRules();
    }

    @Override
    public void manageRoutingRequest(NetworkPacket data) {
        if (data.getSrc().intValue() < 3) {
            FlowTableEntry rule = new FlowTableEntry();

            rule.getWindow()[0]
                    .setOperator(SDN_WISE_EQUAL_OR_LESS)
                    .setSize(SDN_WISE_SIZE_1)
                    .setLocation(SDN_WISE_PACKET)
                    .setPos(SDN_WISE_TYPE)
                    .setValueLow(127);

            rule.getAction()
                    .setType(SDN_WISE_FORWARD_UNICAST)
                    .setLocation(SDN_WISE_PACKET)
                    .setPos(SDN_WISE_NXHOP_H)
                    .setValueLow(data.getSrc().getLow() + 1);

            ResponsePacket rp = new ResponsePacket(data.getNetId(), data.getSrc(), rule);
            this.sendMessage(rp);
        } else if (data.getSrc().intValue() == 3) {
            FlowTableEntry rule = new FlowTableEntry();

            rule.getWindow()[0]
                    .setOperator(SDN_WISE_EQUAL_OR_LESS)
                    .setSize(SDN_WISE_SIZE_1)
                    .setLocation(SDN_WISE_PACKET)
                    .setPos(SDN_WISE_TYPE)
                    .setValueLow(127);

            rule.getAction()
                    .setType(SDN_WISE_FORWARD_UNICAST)
                    .setLocation(SDN_WISE_PACKET)
                    .setPos(SDN_WISE_NXHOP_H)
                    .setValueHigh(0)
                    .setValueLow(0);

            ResponsePacket rp = new ResponsePacket(data.getNetId(), data.getSrc(), rule);
            this.sendMessage(rp);
        }
        data.unsetRequestFlag();
        this.sendMessage(data);
    }
}