source: source/ariba/overlay/OverlayBootstrap.h @ 5967

// [License]
// The Ariba-Underlay Copyright
//
// Copyright (c) 2008-2009, Institute of Telematics, UniversitÀt Karlsruhe (TH)
//
// Institute of Telematics
// UniversitÀt Karlsruhe (TH)
// Zirkel 2, 76128 Karlsruhe
// Germany
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ARIBA PROJECT OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// Telematics.
// [License]

#ifndef __OVERLAY_BOOTSTRAP_H
#define __OVERLAY_BOOTSTRAP_H

#include <string>
#include <sstream>
#include <ctime>
#include <deque>
#include <algorithm>
#include <boost/thread/mutex.hpp>
#include "ariba/utility/logging/Logging.h"
#include "ariba/utility/types.h"
#include "ariba/utility/system/Timer.h"
#include "ariba/utility/bootstrap/BootstrapManager.h"
#include "ariba/utility/bootstrap/BootstrapInformationCallback.h"
#include "ariba/communication/EndpointDescriptor.h"
#include "ariba/utility/system/SystemEventListener.h"
#include "ariba/utility/system/SystemQueue.h"
#include "ariba/utility/system/SystemEvent.h"
#include "ariba/utility/system/SystemEventType.h"

using std::swap;
using std::deque;
using std::string;
using std::ostringstream;
using ariba::utility::SpoVNetID;
using ariba::utility::NodeID;
using ariba::utility::BootstrapManager;
using ariba::utility::BootstrapInformationCallback;
using ariba::communication::EndpointDescriptor;
using ariba::utility::SystemEventType;
using ariba::utility::SystemEvent;
using ariba::utility::SystemQueue;
using ariba::utility::Timer;
using ariba::utility::SystemEventListener;

namespace ariba {
namespace overlay {

class BaseOverlay;

class OverlayBootstrap : public BootstrapInformationCallback, public SystemEventListener {
        use_logging_h(OverlayBootstrap);
public:
        OverlayBootstrap();
        virtual ~OverlayBootstrap();

        void start(BaseOverlay* _overlay, const SpoVNetID& _spovnetid, const NodeID& _nodeid);
        void stop();

        void publish( const EndpointDescriptor& _ep );
        void revoke();

        void recordJoin(const EndpointDescriptor& _ep);
        bool haveOverlayConnections();

protected:
        virtual void handleSystemEvent(const SystemEvent& event);
        virtual void onBootstrapServiceFound(string name, string info1, string info2, string info);

private:
        class JoinData {
        public:
                JoinData() : spovnetid(), nodeid(), endpoint() {
                }

                JoinData& operator=( const JoinData& rhs) {
                        spovnetid = rhs.spovnetid;
                        nodeid = rhs.nodeid;
                        endpoint = rhs.endpoint;
                }

                SpoVNetID spovnetid;
                NodeID nodeid;
                EndpointDescriptor endpoint;
        };

        BootstrapManager& manager;
        SpoVNetID spovnetid;
        NodeID nodeid;
        BaseOverlay* overlay;
        string randname;

        class WatchdogTimer : public Timer {
        public:
                WatchdogTimer(OverlayBootstrap* _obj);
                void startWatchdog();
                void stopWatchdog();
        protected:
                virtual void eventFunction();
        private:
                OverlayBootstrap* obj;
        };

        typedef deque<JoinData> JoinStack;
        JoinStack lastJoines;
        boost::mutex lastJoinesMutex;
        WatchdogTimer watchtimer;
        void checkOverlayStatus();


        bool haveOverlayConnection;
        boost::mutex haveOverlayConnectionMutex;
};

}} // namespace ariba, overlay

#endif // __OVERLAY_BOOTSTRAP_H