itkDOMNodeXMLReader.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/

#ifndef __itkDOMNodeXMLReader_h
#define __itkDOMNodeXMLReader_h

#include "itkDOMNode.h"
#include "itkObject.h"

#include <istream>

namespace itk
{

class DOMNodeXMLReader : public Object
{
public:

  typedef DOMNodeXMLReader            Self;
  typedef Object                      Superclass;
  typedef SmartPointer< Self >        Pointer;
  typedef SmartPointer< const Self >  ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(DOMNodeXMLReader, Object);

  typedef DOMNode             OutputType;
  typedef OutputType::Pointer OutputPointer;

  itkSetStringMacro(FileName);

  itkGetStringMacro(FileName);

  itkSetObjectMacro( Output, OutputType );
  itkGetModifiableObjectMacro(Output, OutputType );

  void Update( std::istream& is );

  virtual void Update();

  virtual void StartElement( const char* name, const char** atts );

  virtual void EndElement( const char* name );

  virtual void CharacterDataHandler( const char* text, int len );

protected:
  DOMNodeXMLReader();

private:
  DOMNodeXMLReader(const Self &); //purposely not implemented
  void operator=(const Self &); //purposely not implemented

  std::string m_FileName;

  OutputPointer m_Output;

  OutputType* m_Context;
};

} // namespace itk

inline std::istream& operator>>( std::istream& is, itk::DOMNode& object )
{
  itk::DOMNodeXMLReader::Pointer reader = itk::DOMNodeXMLReader::New();
  reader->SetOutput( &object );
  reader->Update( is );
  return is;
}

#endif // __itkDOMNodeXMLReader_h