org.openbaton.nse.core.ConnectivityManagerHandler.java Source code

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/*
 *
 *  * Copyright (c) 2016 Open Baton (http://www.openbaton.org)
 *  *
 *  * Licensed under the Apache License, Version 2.0 (the "License");
 *  * you may not use this file except in compliance with the License.
 *  * You may obtain a copy of the License at
 *  *
 *  *     http://www.apache.org/licenses/LICENSE-2.0
 *  *
 *  * Unless required by applicable law or agreed to in writing, software
 *  * distributed under the License is distributed on an "AS IS" BASIS,
 *  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  * See the License for the specific language governing permissions and
 *  * limitations under the License.
 *
 */

package org.openbaton.nse.core;

import org.openbaton.nse.beans.connectivitymanageragent.ConnectivityManagerRequestor;
import org.openbaton.nse.utils.FlowAllocation;
import org.openbaton.nse.utils.QoSAllocation;
import org.openbaton.nse.utils.json.Host;
import org.openbaton.nse.utils.json.Server;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Service;

import java.util.Date;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import javax.annotation.PostConstruct;

/**
 * Created by maa on 03.12.15.
 */
@Service
@Scope("prototype")
public class ConnectivityManagerHandler {

    @Autowired
    private QosManagement queueHandler;
    @Autowired
    private FlowManagement flowsHandler;
    @Autowired
    private ConnectivityManagerRequestor requestor;
    private Logger logger;
    private Map<String, List<Server>> internalData;
    private Host hostMap;

    @PostConstruct
    private void init() {
        this.logger = LoggerFactory.getLogger(this.getClass());
        this.internalData = new LinkedHashMap<>();
        this.hostMap = new Host();
    }

    public boolean addQos(List<QoSAllocation> queues, FlowAllocation flows, String nsrId) {
        logger.info("[CONNECTIVITY-MANAGER-HANDLER] allocating slice for " + nsrId + " at time "
                + new Date().getTime());
        logger.debug("Start creating QOS for " + nsrId + " with queues " + queues.toString() + " and flows "
                + flows.toString());
        this.updateHost();
        List<Server> servers = queueHandler.createQueues(hostMap, queues, nsrId);
        internalData.put(nsrId, servers);
        logger.debug("MAP VALUE IS " + nsrId + " -> " + servers.toString());

        flowsHandler.addFlow(hostMap, servers, flows, nsrId);
        logger.info(
                "[CONNECTIVITY-MANAGER-HANDLER] allocated slice for " + nsrId + " at time " + new Date().getTime());
        return true;
    }

    public boolean updateQos() {
        return false;
    }

    private void updateHost() {
        this.hostMap = requestor.getHost();
    }

    public boolean removeQos(List<String> servers, String nsrID) {

        List<Server> serversList;
        logger.info(
                "[CONNECTIVITY-MANAGER-HANDLER] removing slice for " + nsrID + " at time " + new Date().getTime());
        try {
            serversList = internalData.get(nsrID);
            logger.info("SERVER LIST FOR DELETING IS " + serversList.toString());
        } catch (NullPointerException e) {
            logger.debug("Servers for " + nsrID + " not found");
            return false;
        }

        queueHandler.removeQos(hostMap, serversList, servers, nsrID);
        flowsHandler.removeFlow(hostMap, servers, internalData.get(nsrID), nsrID);
        internalData.remove(nsrID);
        logger.info(
                "[CONNECTIVITY-MANAGER-HANDLER] removed slice for " + nsrID + " at time " + new Date().getTime());
        return true;
    }
}