ArrayJoinExistingAggregation.h

// This file is part of the "NcML Module" project, a BES module designed
// to allow NcML files to be used to be used as a wrapper to add
// AIS to existing datasets of any format.
//
// Copyright (c) 2010 OPeNDAP, Inc.
// Author: Michael Johnson  <m.johnson@opendap.org>
//
// For more information, please also see the main website: http://opendap.org/
//
// 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
//
// Please see the files COPYING and COPYRIGHT for more information on the GLPL.
//
// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
#ifndef __AGG_UTIL__ARRAY_JOIN_EXISTING_AGGREGATION_H__
#define __AGG_UTIL__ARRAY_JOIN_EXISTING_AGGREGATION_H__
 
#include "AggMemberDataset.h" // agg_util
#include "ArrayAggregationBase.h" // agg_util
#include "Dimension.h" // agg_util
 
namespace libdap {
    class ConstraintEvaluator;
    class DDS;
    class Marshaller;
}
 
namespace agg_util {
 
class ArrayJoinExistingAggregation: public ArrayAggregationBase {
public:

    ArrayJoinExistingAggregation(const libdap::Array& granuleTemplate, AMDList memberDatasets,
        std::unique_ptr<ArrayGetterInterface> arrayGetter, const Dimension& joinDim);
 
    ArrayJoinExistingAggregation(const ArrayJoinExistingAggregation& rhs);
 
    virtual ~ArrayJoinExistingAggregation();
 
    ArrayJoinExistingAggregation& operator=(const ArrayJoinExistingAggregation& rhs);

    virtual ArrayJoinExistingAggregation* ptr_duplicate();
 
    virtual bool serialize(libdap::ConstraintEvaluator &eval, libdap::DDS &dds, libdap::Marshaller &m, bool ce_eval);
 
protected:
    // Subclass Interface

    virtual void transferOutputConstraintsIntoGranuleTemplateHook();
 
    /* IMPL of virtual hook.
     * Does the internal work to make the aggregation using read
     * and respecting constraints on the outer dimension */
    virtual void readConstrainedGranuleArraysAndAggregateDataHook();
 
private:
    // helpers

    void duplicate(const ArrayJoinExistingAggregation& rhs);

    void cleanup() noexcept;

    // Data Rep

    agg_util::Dimension _joinDim;
};
 
}
 
#endif /* __AGG_UTIL__ARRAY_JOIN_EXISTING_AGGREGATION_H__ */