NeighborRoutingExtension.h

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/*
 * NeighborRoutingExtension.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 NEIGHBORROUTINGEXTENSION_H_
#define NEIGHBORROUTINGEXTENSION_H_

#include "storage/BundleResult.h"
#include "routing/RoutingExtension.h"
#include "routing/NeighborDatabase.h"
#include "core/Node.h"
#include "net/ConnectionManager.h"

#include <ibrdtn/data/MetaBundle.h>
#include "ibrdtn/data/EID.h"
#include <ibrcommon/thread/Queue.h>
#include <list>
#include <map>
#include <queue>

namespace dtn
{
        namespace routing
        {
                class NeighborRoutingExtension : public RoutingExtension, public ibrcommon::JoinableThread
                {
                        static const std::string TAG;

                public:
                        NeighborRoutingExtension();
                        virtual ~NeighborRoutingExtension();

                        virtual const std::string getTag() const throw ();

                        virtual void eventDataChanged(const dtn::data::EID &peer) throw ();

                        virtual void eventBundleQueued(const dtn::data::EID &peer, const dtn::data::MetaBundle &meta) throw ();

                        void componentUp() throw ();
                        void componentDown() throw ();

                protected:
                        void run() throw ();
                        void __cancellation() throw ();

                private:
                        class Task
                        {
                        public:
                                virtual ~Task() {};
                                virtual std::string toString() = 0;
                        };

                        class SearchNextBundleTask : public Task
                        {
                        public:
                                SearchNextBundleTask(const dtn::data::EID &eid);
                                virtual ~SearchNextBundleTask();

                                virtual std::string toString();

                                const dtn::data::EID eid;
                        };

                        class ProcessBundleTask : public Task
                        {
                        public:
                                ProcessBundleTask(const dtn::data::MetaBundle &meta, const dtn::data::EID &origin, const dtn::data::EID &nexthop);
                                virtual ~ProcessBundleTask();

                                virtual std::string toString();

                                const dtn::data::MetaBundle bundle;
                                const dtn::data::EID origin;
                                const dtn::data::EID nexthop;
                        };

                        std::pair<bool, dtn::core::Node::Protocol> shouldRouteTo(const dtn::data::MetaBundle &meta, const NeighborDatabase::NeighborEntry &n, const dtn::net::ConnectionManager::protocol_list &plist) const;

                        ibrcommon::Queue<NeighborRoutingExtension::Task* > _taskqueue;
                };
        }
}

#endif /* NEIGHBORROUTINGEXTENSION_H_ */