DiscoveryAgent.h

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/*
 * DiscoveryAgent.h
 *
 * Copyright (C) 2011 IBR, TU Braunschweig
 *
 * Written-by: Johannes Morgenroth <morgenroth@ibr.cs.tu-bs.de>
 *
 * 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.
 *
 */

#ifndef DISCOVERYAGENT_H_
#define DISCOVERYAGENT_H_

#include "core/Node.h"
#include "net/Neighbor.h"
#include "net/DiscoveryAnnouncement.h"
#include "net/DiscoveryServiceProvider.h"
#include "net/DiscoveryService.h"
#include "Configuration.h"

#include <ibrdtn/data/Number.h>

#include <list>

namespace dtn
{
        namespace net
        {
                class DiscoveryAgent
                {
                public:
                        DiscoveryAgent(const dtn::daemon::Configuration::Discovery &config);
                        virtual ~DiscoveryAgent() = 0;

                        void received(const dtn::data::EID &source, const std::list<DiscoveryService> &services, const dtn::data::Number &timeout = 0);

                        void addService(dtn::net::DiscoveryServiceProvider *provider);

                protected:
                        virtual void sendAnnoucement(const uint16_t &sn, std::list<dtn::net::DiscoveryServiceProvider*> &provider) = 0;

                        void timeout();

                        const dtn::daemon::Configuration::Discovery &_config;

                private:
                        std::list<Neighbor> _neighbors;
                        uint16_t _sn;
                        std::list<dtn::net::DiscoveryServiceProvider*> _provider;
                        dtn::data::Timestamp _last_announce_sent;
                };
        }
}

#endif /* DISCOVERYAGENT_H_ */