I3BaseApp.h

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//
// Copyright (C) 2006 Institut fuer Telematik, Universitaet Karlsruhe (TH)
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
//

#ifndef __I3BASEAPP_H__
#define __I3BASEAPP_H__


#include <omnetpp.h>
#include <UDPAppBase.h>
#include <INotifiable.h>


#include "I3Trigger.h"
#include "I3IdentifierStack.h"
#include "I3Message.h"
#include "I3IPAddress.h"
#include "I3Identifier.h"

class I3BaseApp : public UDPAppBase,
                  public INotifiable
{
public:
    struct I3CachedServer {
        I3IPAddress address;

        simtime_t lastReply;
        simtime_t roundTripTime;

        I3CachedServer();
        friend std::ostream& operator<<(std::ostream& os, const I3CachedServer& ip);
    };

    I3BaseApp();

    ~I3BaseApp();

protected:
    enum I3MobilityStage {
        I3_MOBILITY_BEFORE_UPDATE,
        I3_MOBILITY_UPDATED
    };

    int numSent;

    int sentBytes;

    int numReceived;

    int receivedBytes;

    int numIsolations;

    IPvXAddress nodeIPAddress;

    std::set<I3Trigger> insertedTriggers;

    std::map<I3Identifier, I3CachedServer> samplingCache;

    std::map<I3Identifier, I3CachedServer> identifierCache;

    I3CachedServer gateway;

    cMessage *refreshTriggersTimer;

    int refreshTriggersTime;

    cMessage *refreshSamplesTimer;

    int refreshSamplesTime;

    cMessage *initializeTimer;

    cMessage *bootstrapTimer;

    int numInitStages() const;

    void initialize(int stage);

    virtual void initializeApp(int stage);

    void bootstrapI3();

    virtual void initializeI3();


    virtual void handleTimerEvent(cMessage* msg);

    virtual void handleUDPMessage(cMessage* msg);

    void handleMessage(cMessage *msg);

    virtual void deliver(I3Trigger &trigger, I3IdentifierStack &stack, cPacket *msg);

    void sendToI3(I3Message *msg);

    void sendThroughUDP(cMessage *msg, const I3IPAddress &ip);

    void refreshTriggers();

    void refreshSamples();

    I3Identifier retrieveClosestIdentifier();

    void sendPacket(const I3Identifier &id, cPacket *msg, bool useHint = false);

    void sendPacket(const I3IdentifierStack &stack, cPacket *msg, bool useHint = false);

    void insertTrigger(const I3Identifier &identifier, bool store = true);

    void insertTrigger(const I3Identifier &identifier, const I3IdentifierStack &stack, bool store = true);

    void insertTrigger(const I3Trigger &t, bool store = true);

    void removeTrigger(const I3Identifier &identifier);

    void removeTrigger(const I3Trigger &trigger);

    std::set<I3Trigger> &getInsertedTriggers();


    void receiveChangeNotification (int category, const cPolymorphic *details);

    virtual void doMobilityEvent(I3MobilityStage stage);

private:
    bool mobilityInStages;


};

#endif