Logger.hh

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/*
 * Copyright 2011 Nate Koenig
 *
 * 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.
 *
*/
/* Desc: A class to log data
 * Author: Nate Koenig
 * Date: 1 Jun 2010
 */

#ifndef _LOGGER_HH_
#define _LOGGER_HH_

#include <vector>
#include <fstream>
#include <string>

#include "common/SingletonT.hh"

namespace gazebo
{
  namespace physics
  {

    class Logger : public SingletonT<Logger>
    {
      private: Logger();

      private: virtual ~Logger();

      public: bool Add(const std::string &_entityName,
                       const std::string &_filename);

      public: bool Remove(const std::string &_entity);

      private: void Update();

      private: class LogObj
               {
                 public: LogObj(const std::string &entityName,
                                const std::string &filename);
                 public: virtual ~LogObj();
                 public: void Update();
                 public: std::string GetEntityName() const;

                 public: bool valid;
                 private: Entity *entity;
                 private: std::fstream logFile;
                 private: Time startSimTime;
                 private: Time startRealTime;
               };

      private: std::vector<LogObj*> logObjects;

      private: friend class SingletonT<Logger>;
    };
  }
}
#endif