/**
 * \file BaseDataSource.h
 * \brief The base class for all data sources
 * \author M. T
 *
 * 
 *
 */
#ifndef _ASGARD_BASEDATASOURCE_H
#define _ASGARD_BASEDATASOURCE_H

using namespace std;

namespace asgard {
	/**
	  @brief The base class for all data sources.
	*/
	class BaseDataSource {
	protected:
		//! the number of instances
		unsigned long numberOfInstances;
		//! the number of dimensions
		unsigned long numberOfDimensions;
	public:
		/**
		 * \brief Base Data Source constructor
		 * \param ni the number of instances
		 * \param nd the number of dimensions
		 */
        BaseDataSource(unsigned long ni = 0, unsigned long nd = 0): numberOfInstances(ni), numberOfDimensions(nd){}
		//! Base Data Source  destructor
		virtual ~BaseDataSource(){}
		/**
		 * \brief Sets the number of instances of the data source.
		 * \param n the number of instances to be set
		 */
		void setNumberOfInstances(unsigned long n){
			numberOfInstances=n;
		}		
		/**
		 * \brief Retrieves the number of instances of the data source.
		 * \return the number of instances
		 */
		unsigned long getNumberOfInstances() const {
			return numberOfInstances;
		}
		/**
		 * \brief Sets the number of dimensions of each instance of the data source.
		 * \param n the number of dimensions
		 */
		void setNumberOfDimensions(unsigned long n){
			numberOfDimensions=n;
		}
		/**
		 * \brief Retrieves the number of dimensions of each instance of the data source.
		 * \return the number of dimensions
		 */
		unsigned long getNumberOfDimensions() const{
			return numberOfDimensions;
		}
		/**
		 * \brief Retrieves the size of the data source.
		 * \return the size of the data source
		 */
		unsigned long size() const {
			return numberOfInstances*numberOfDimensions;
		}
	};
}

#endif