SaxParser.h

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// 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) 2009 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 __NCML_MODULE__SAX_PARSER_H__
#define __NCML_MODULE__SAX_PARSER_H__

#include <string>

namespace ncml_module
{
  // FDecls
  class XMLAttributeMap;
  class XMLNamespaceMap;

class SaxParser
{
protected:
  SaxParser(); // Interface class

public:
  virtual ~SaxParser() {};

  virtual void onStartDocument() = 0;
  virtual void onEndDocument() = 0;

  virtual void onStartElement(const std::string& name, const XMLAttributeMap& attrs) = 0;

  virtual void onEndElement(const std::string& name) = 0;

  virtual void onStartElementWithNamespace(
      const std::string& localname,
      const std::string& prefix,
      const std::string& uri,
      const XMLAttributeMap& attributes,
      const XMLNamespaceMap& namespaces) = 0;

  virtual void onEndElementWithNamespace(
      const std::string& localname,
      const std::string& prefix,
      const std::string& uri) = 0;

  virtual void onCharacters(const std::string& content) = 0;

  virtual void onParseWarning(std::string msg) = 0;

  virtual void onParseError(std::string msg) = 0;

  virtual void setParseLineNumber(int /* line */) {}

}; // class SaxParser

} // namespace ncml_module

#endif /* __NCML_MODULE__SAX_PARSER_H__ */