DapXmlNamespaces.h

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// -*- mode: c++; c-basic-offset:4 -*-
 
// This file is part of libdap, A C++ implementation of the OPeNDAP Data
// Access Protocol.
 
// Copyright (c) 2017 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
 
#ifndef DAPXMLNAMSPACES_H_
#define DAPXMLNAMSPACES_H_
 
#include <string>
 
namespace libdap {
 
enum DAPVersion { DAP_2_0, DAP_3_2, DAP_4_0 };
 
class DapXmlNamspaces {
 
public:
    virtual ~DapXmlNamspaces() {};

    static std::string getXmlXsiNamespace() { return "http://www.w3.org/2001/XMLSchema-instance"; }

    static std::string getXmlNamespace() { return "http://www.w3.org/XML/1998/namespace"; }

    static std::string getGrddlTransformation(DAPVersion version) {
 
        switch (version) {
        case DAP_2_0:
            throw InternalErr(
                __FILE__, __LINE__,
                "DapXmlNamspaces::getDapXmlNamespaceString() - GRDDL Transformation undefined for DAP 2.0");
            break;
 
        case DAP_3_2:
            return "http://xml.opendap.org/transforms/ddxToRdfTriples.xsl";
            break;
 
        case DAP_4_0:
            throw InternalErr(
                __FILE__, __LINE__,
                "DapXmlNamspaces::getDapXmlNamespaceString() - GRDDL Transformation undefined for DAP 4.0");
            break;
 
        default:
            throw InternalErr(__FILE__, __LINE__,
                              "DapXmlNamspaces::getDapXmlNamespaceString() - Unrecognized namespace version.");
            break;
        }
    }

    static std::string getDapNamespaceString(DAPVersion version) {
 
        switch (version) {
        case DAP_2_0:
            return "http://xml.opendap.org/ns/DAP2";
            break;
 
        case DAP_3_2:
            return "http://xml.opendap.org/ns/DAP/3.2#";
            break;
 
        case DAP_4_0:
            return "http://xml.opendap.org/ns/DAP/4.0#";
            break;
 
        default:
            throw InternalErr(__FILE__, __LINE__,
                              "DapXmlNamspaces::getDapXmlNamespaceString() - Unrecognized namespace version.");
            break;
        }
    }

    static std::string getSchemaLocationString(DAPVersion version) {
 
        switch (version) {
        case DAP_2_0:
            return "http://xml.opendap.org/dap/dap2.xsd";
            break;
 
        case DAP_3_2:
            return "http://xml.opendap.org/dap/dap3.2.xsd";
            break;
 
        case DAP_4_0:
            return "http://xml.opendap.org/dap/dap4.0.xsd";
            break;
 
        default:
            throw InternalErr(__FILE__, __LINE__,
                              "DapXmlNamspaces::getSchemaLocationString() - Unrecognized namespace version.");
            break;
        }
    }

    static std::string getSchemaLocationDeclarationString(DAPVersion version) {
        return getDapNamespaceString(version).append(" ").append(getSchemaLocationString(version));
    }
};
 
} /* namespace libdap */
#endif /* DAPXMLNAMSPACES_H_ */