NetCDF_CDMWriter.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 NETCDF_CDMWRITER_H_
#define NETCDF_CDMWRITER_H_

#include "fimex/CDMWriter.h"
#include "fimex/CDM.h"
#include <map>
#include <string>

namespace MetNoFimex
{
/* forward declarations */
class XMLDoc;
class Nc;

class NetCDF_CDMWriter : public CDMWriter
{
    typedef std::map<std::string, int> NcDimIdMap;
    typedef std::map<std::string, int> NcVarIdMap;

public:
    NetCDF_CDMWriter(const boost::shared_ptr<CDMReader> cdmReader, const std::string& outputFile, std::string configFile = "", int version = 3);
    virtual ~NetCDF_CDMWriter();
    const std::string& getVariableName(const std::string& varName) const;
    const std::string& getDimensionName(const std::string& dimName) const;
    const CDMAttribute& getAttribute(const std::string& varName, const std::string& attName) const;



private:
    void init();
    void initNcmlReader(std::auto_ptr<XMLDoc>& doc);
    void initFillRenameDimension(std::auto_ptr<XMLDoc>& doc);
    void initFillRenameVariable(std::auto_ptr<XMLDoc>& doc);
    void initFillRenameAttribute(std::auto_ptr<XMLDoc>& doc);
    void initRemove(std::auto_ptr<XMLDoc>& doc);
    void testVariableExists(const std::string& varName);

    NcDimIdMap defineDimensions();
    NcVarIdMap defineVariables(const NcDimIdMap& dimMap);
    void writeAttributes(const NcVarIdMap& varMap);
    void writeData(const NcVarIdMap& varMap);
    double getOldAttribute(const std::string& varName, const std::string& attName, double defaultValue) const;
    double getNewAttribute(const std::string& varName, const std::string& attName, double defaultValue) const;
    CDM cdm; /* local storage of the changed cdm-outline, except variable name changes */
    std::auto_ptr<Nc> ncFile;
    std::map<std::string, std::string> variableNameChanges;
    std::map<std::string, CDMDataType> variableTypeChanges;
    std::map<std::string, unsigned int> variableCompression;
    std::map<std::string, unsigned int> dimensionChunkSize;
    std::map<std::string, std::string> dimensionNameChanges;
};

}

#endif /*NETCDF_CDMWRITER_H_*/