FileConvergenceLayer.h

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/*
 * FileConvergenceLayer.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.
 *
 */

#include "Component.h"
#include "net/ConvergenceLayer.h"
#include "core/NodeEvent.h"
#include "core/TimeEvent.h"
#include "core/Node.h"
#include "core/EventReceiver.h"
#include <ibrdtn/data/BundleList.h>
#include <ibrcommon/thread/Mutex.h>
#include <ibrcommon/thread/Queue.h>

#ifndef FILECONVERGENCELAYER_H_
#define FILECONVERGENCELAYER_H_

namespace dtn
{
        namespace net
        {

                class FileConvergenceLayer : public dtn::net::ConvergenceLayer, public dtn::daemon::IndependentComponent, public dtn::core::EventReceiver<dtn::core::NodeEvent>, public dtn::core::EventReceiver<dtn::core::TimeEvent>
                {
                public:
                        FileConvergenceLayer();
                        virtual ~FileConvergenceLayer();

                        void raiseEvent(const dtn::core::NodeEvent &evt) throw ();
                        void raiseEvent(const dtn::core::TimeEvent &evt) throw ();

                        dtn::core::Node::Protocol getDiscoveryProtocol() const;

                        void open(const dtn::core::Node&);
                        void queue(const dtn::core::Node &n, const dtn::net::BundleTransfer &job);

                        const std::string getName() const;

                protected:
                        void componentUp() throw ();
                        void componentRun() throw ();
                        void componentDown() throw ();

                        void __cancellation() throw ();

                private:
                        class Task
                        {
                        public:
                                enum Action
                                {
                                        TASK_LOAD,
                                        TASK_STORE
                                };

                                Task(Action a, const dtn::core::Node &n);
                                virtual ~Task();

                                const Action action;
                                const dtn::core::Node node;
                        };

                        class StoreBundleTask : public Task
                        {
                        public:
                                StoreBundleTask(const dtn::core::Node &n, const dtn::net::BundleTransfer &j);
                                virtual ~StoreBundleTask();

                                dtn::net::BundleTransfer job;
                        };

                        void replyHandshake(const dtn::data::Bundle &bundle, std::list<dtn::data::MetaBundle>&);

                        ibrcommon::Mutex _blacklist_mutex;
                        dtn::data::BundleList _blacklist;
                        ibrcommon::Queue<Task*> _tasks;

                        static ibrcommon::File getPath(const dtn::core::Node&);
                        static std::list<dtn::data::MetaBundle> scan(const ibrcommon::File &path);
                        void load(const dtn::core::Node&);

                };

        } /* namespace net */
} /* namespace dtn */
#endif /* FILECONVERGENCELAYER_H_ */