FoDapJsonTransform.h

// -*- mode: c++; c-basic-offset:4 -*-
//
// FoDapJsonTransform.cc
//
// This file is part of BES JSON File Out Module
//
// Copyright (c) 2014 OPeNDAP, Inc.
// Author: Nathan Potter <ndp@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
//
// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
// (c) COPYRIGHT URI/MIT 1995-1999
// Please read the full copyright statement in the file COPYRIGHT_URI.
//
 
#ifndef FODAPNJSONTRANSFORM_H_
#define FODAPNJSONTRANSFORM_H_
 
#include <string>
#include <vector>
#include <map>
 
#include <BESObj.h>
 
namespace libdap {
class BaseType;
class DDS;
class Array;
}
 
class BESDataHandlerInterface;

class FoDapJsonTransform: public BESObj {
private:
    libdap::DDS *_dds;
    std::string _returnAs;
    std::string _indent_increment;
 
    void writeNodeMetadata(std::ostream *strm, libdap::BaseType *bt, std::string indent);
    void writeLeafMetadata(std::ostream *strm, libdap::BaseType *bt, std::string indent);
    void writeDatasetMetadata(std::ostream *strm, libdap::DDS *dds, std::string indent);
 
    void transformAtomic(std::ostream *strm, libdap::BaseType *bt, std::string indent, bool sendData);
 
    void transform(std::ostream *strm, libdap::DDS *dds, std::string indent, bool sendData);
    void transform(std::ostream *strm, libdap::BaseType *bt, std::string indent, bool sendData);
 
    //void transform(std::ostream *strm, Structure *s,string indent );
    //void transform(std::ostream *strm, Grid *g, string indent);
    //void transform(std::ostream *strm, Sequence *s, string indent);
    void transform(std::ostream *strm, libdap::Constructor *cnstrctr, std::string indent, bool sendData);
    void transform_node_worker(std::ostream *strm, std::vector<libdap::BaseType *> leaves,
        std::vector<libdap::BaseType *> nodes, std::string indent, bool sendData);
 
    void transform(std::ostream *strm, libdap::Array *a, std::string indent, bool sendData);
    void transform(std::ostream *strm, libdap::AttrTable &attr_table, std::string indent);
 
    template<typename T>
    void json_simple_type_array(std::ostream *strm, libdap::Array *a, std::string indent, bool sendData);
 
    void json_string_array(std::ostream *strm, libdap::Array *a, std::string indent, bool sendData);
 
    template<typename T>
    unsigned int json_simple_type_array_worker(std::ostream *strm, T *values, unsigned int indx,
        std::vector<unsigned int> *shape, unsigned int currentDim);
public:
    FoDapJsonTransform(libdap::DDS *dds);
 
    virtual ~FoDapJsonTransform() { }
 
    virtual void transform(std::ostream &ostrm, bool sendData);
 
    virtual void dump(std::ostream &strm) const;
};
 
#endif /* FODAPJSONTRANSFORM_H_ */