log.h

// Copyright (C) 2009-2010 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.
// Author Sergi Hernandez  (shernand@iri.upc.edu)
// All rights reserved.
//
// This file is part of iriutils
// iriutils is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

#ifndef _LOG_H
#define _LOG_H

#include <iostream>
#include <fstream>
#include <stdio.h>
#include <string>
#include <vector>
#include "mutex.h"
#include "ctime.h"

class CLog
{
  private:
    std::fstream log_file;

    std::string filename;
    bool enabled;

    CMutex access;
    
    CTime time_stamp; 
  public:
    CLog(const std::string& filename);

    void enable(void);

    void disable(void);

    bool is_enabled(void);

    std::string get_filename(void);

    void set_time_format(ctimeformat format);

    ctimeformat get_time_format();
    
    template<class T>
    void log(const T& value)
    {
      this->access.enter();

      this->time_stamp.set();
      if (this->is_enabled())
        this->log_file << "[" << this->time_stamp.getString() << "] - " << value << std::endl;

      this->access.exit();
    }

    template<class T>
    void log_vector(const std::vector<T>& values)
    {
      unsigned int i=0;

      this->access.enter();
      this->time_stamp.set();
      if (this->is_enabled())
      {
        this->log_file << "[" << this->time_stamp.getString() << "] - ";
        for(i=0;i<values.size();i++)
        {
          this->log_file << values[i];
          if(i<values.size()-1)
            this->log_file << ",";
        }
        this->log_file << std::endl;
      }
      this->access.exit();
    }


    ~CLog();
};

#endif