CDMExtractor.h

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/*
 * Fimex
 *
 * (C) Copyright 2008, met.no
 *
 * Project Info:  https://wiki.met.no/fimex/start
 *
 * This library 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 2.1 of the License, or
 * (at your option) any later version.
 *
 * This library 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 library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 */

#ifndef CDMEXTRACTOR_H_
#define CDMEXTRACTOR_H_

#include <map>
#include <set>
#include <boost/shared_ptr.hpp>

#include "fimex/CDMReader.h"
#include "fimex/CDMDataType.h"
#include "fimex/TimeUnit.h"
#include "fimex/coordSys/CoordinateAxis.h"

namespace MetNoFimex
{

class CDMExtractor : public MetNoFimex::CDMReader
{
private:
    boost::shared_ptr<CDMReader> dataReader_;
    typedef std::map<std::string, std::vector<size_t> > DimSlicesMap;
    DimSlicesMap dimSlices_;
    DataPtr getDataSlice_(const std::string& varName, const SliceBuilder& sb);
    CDMExtractor();

public:
    CDMExtractor(boost::shared_ptr<CDMReader> dataReader);
    virtual ~CDMExtractor();

//    using CDMReader::getDataSlice;
    virtual DataPtr getDataSlice(const std::string& varName, size_t unLimDimPos = 0);
    virtual DataPtr getDataSlice(const std::string& varName, const SliceBuilder& sb);

    virtual void removeVariable(std::string varName);
    virtual void selectVariables(std::set<std::string> variables, bool keepLogical = false);
     void reduceDimension(std::string dimName, const std::set<std::size_t>& slices);
    virtual void reduceDimension(std::string dimName, size_t start, size_t length);
    virtual void reduceDimensionStartEnd(std::string dimName, size_t start = 0, long long end = 0);
    virtual void reduceAxes(const std::vector<CoordinateAxis::AxisType>& types, const std::string& aUnits, double startVal, double endVal);
    virtual void reduceTime(const FimexTime& startTime, const FimexTime& endTime);

    virtual void reduceVerticalAxis(const std::string& units, double startVal, double endVal);

    virtual void reduceLatLonBoundingBox(double south, double north, double west, double east);

    virtual void changeDataType(std::string variable, CDMDataType datatype);

};

}

#endif /*CDMEXTRACTOR_H_*/