handler.h

Go to the documentation of this file.

#ifndef __HANDLER_H
#define __HANDLER_H

#include "logrec.h"

#include <fstream>
#include <sstream>
#include <unordered_set>
#include <algorithm>

class Handler {
public:
    Handler() :
            hout(std::cout) {}

    virtual ~Handler() {};

    virtual void initialize() {};

    virtual void invoke(logrec_t &r) = 0;

    virtual void finalize() {};

    virtual void newFile(const char* /* fname */) {};

    Handler(const Handler&) = delete;

    Handler& operator=(const Handler&) = delete;

    void setFileOutput(string fpath) {
        fileOutput.reset(new ofstream(fpath));
        hout = *fileOutput;
    }

protected:
    ostream& out() {
        return hout.get();
    }

private:
    reference_wrapper<ostream> hout;

    unique_ptr<ofstream> fileOutput;
};

class PageHandler {
public:
    virtual void finalize() {};

    virtual void handle(const generic_page& page) = 0;
};

class StoreHandler {
public:
    virtual void finalize() {};

    virtual void handle(const StoreID&) = 0;
};

#endif // __HANDLER_H