element_data_cache.hh

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/*!
 *
 * Copyright (C) 2015 Technical University of Liberec.  All rights reserved.
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License version 3 as published by the
 * Free Software Foundation. (http://www.gnu.org/licenses/gpl-3.0.en.html)
 * 
 * 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.
 *
 * 
 * @file    element_data_cache.hh
 * @brief   
 */

#ifndef ELEMENT_DATA_CACHE_HH_
#define ELEMENT_DATA_CACHE_HH_

#include <vector>
#include <string>
#include <memory>


class ElementDataCacheBase {
public:
    /// Constructor.
    ElementDataCacheBase()
    : time_(-std::numeric_limits<double>::infinity()),
      quantity_name_("") {}

    /// Getter for time of cache
    double get_time()
    { return time_; }

    /// Getter for quantity name of cache
    std::string get_quantity_name()
    { return quantity_name_; }

    /// Check if cache stored actual data
    bool is_actual(double time, std::string quantity_name) {
        return (time_ == time) && (quantity_name_ == quantity_name);
    }

protected:
    /// time step stored in cache
    double time_;
    /// name of quantity stored in cache
    std::string quantity_name_;
};


template <typename T>
class ElementDataCache : public ElementDataCacheBase {
public:
    typedef std::shared_ptr< std::vector<T> > ComponentDataPtr;
    typedef std::vector< ComponentDataPtr > CacheData;

    /// Constructor.
    ElementDataCache(double time, std::string quantity_name, CacheData data)
    : data_(data) {
        this->time_ = time;
        this->quantity_name_ = quantity_name;
    }

    /// Return vector of element data for get component.
    ComponentDataPtr get_component_data(unsigned int component_idx) {
        OLD_ASSERT(component_idx < data_.size(), "Index of component is out of range.\n");
        return data_[component_idx];
    }

protected:
    /**
     * Table of element data.
     *
     * For every components contains vector of element data.
     */
    CacheData data_;
    
};

#endif /* ELEMENT_DATA_CACHE_HH_ */