ApiServer.h

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/*
 * ApiServer.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 APISERVER_H_
#define APISERVER_H_

#include "Component.h"
#include "api/Registration.h"
#include "api/ClientHandler.h"
#include "core/EventReceiver.h"
#include "storage/BundleSeeker.h"
#include "routing/QueueBundleEvent.h"
#include <ibrcommon/net/vinterface.h>
#include <ibrcommon/net/socket.h>
#include <ibrcommon/thread/Mutex.h>
#include <ibrcommon/thread/Timer.h>

#include <set>
#include <list>

namespace dtn
{
        namespace api
        {
                class ApiServer : public dtn::daemon::IndependentComponent, public dtn::core::EventReceiver<dtn::routing::QueueBundleEvent>, public ApiServerInterface, public ibrcommon::TimerCallback
                {
                        static const std::string TAG;

                public:
                        ApiServer(const ibrcommon::File &socket);
                        ApiServer(const ibrcommon::vinterface &net, int port = 4550);
                        virtual ~ApiServer();

                        virtual const std::string getName() const;

                        void freeRegistration(Registration &reg);

                        void raiseEvent(const dtn::routing::QueueBundleEvent &evt) throw ();

                        Registration& getRegistration(const std::string &handle);

                        virtual size_t timeout(ibrcommon::Timer*);

                protected:
                        void __cancellation() throw ();

                        virtual void connectionUp(ClientHandler *conn);
                        virtual void connectionDown(ClientHandler *conn);

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

                private:

                        void startGarbageCollector();
                        size_t nextRegistrationExpiry();

                        ibrcommon::vsocket _sockets;
                        bool _shutdown;

                        typedef std::list<Registration*> registration_list;
                        registration_list _registrations;

                        typedef std::list<ClientHandler*> client_list;
                        client_list _connections;

                        ibrcommon::Mutex _connection_lock;
                        ibrcommon::Mutex _registration_lock;
                        ibrcommon::Timer _garbage_collector;
                };
        }
}

#endif /* APISERVER_H_ */