#ifndef __CPPLUGINS__INTERFACE__PROCESSOBJECT__H__
#define __CPPLUGINS__INTERFACE__PROCESSOBJECT__H__

#include <itkProcessObject.h>
#include <cpPlugins/Interface/cpPlugins_Interface_Export.h>
#include <cpPlugins/Interface/Object.h>
#include <cpPlugins/Interface/DataObject.h>
#include <cpPlugins/Interface/Parameters.h>

namespace cpPlugins
{
  namespace Interface
  {
    /**
     */
    class cpPlugins_Interface_EXPORT ProcessObject
      : public Object
    {
    public:
      typedef ProcessObject                   Self;
      typedef Object                          Superclass;
      typedef itk::SmartPointer< Self >       Pointer;
      typedef itk::SmartPointer< const Self > ConstPointer;

    public:
      itkTypeMacro( ProcessObject, Object );

    public:
      virtual std::string GetClassName( ) const;
      virtual std::string GetClassType( ) const;
      virtual const Parameters& GetDefaultParameters( ) const;
      virtual void SetParameters( const Parameters& params );

      virtual unsigned int GetNumberOfInputs( ) const;
      virtual unsigned int GetNumberOfOutputs( ) const;

      virtual void SetNumberOfInputs( unsigned int n );
      virtual void SetNumberOfOutputs( unsigned int n );

      virtual void SetInput( unsigned int idx, DataObject* dobj );
      virtual DataObject* GetOutput( unsigned int idx );

      virtual std::string Update( );
      virtual void DisconnectOutputs( );

    protected:
      ProcessObject( );
      virtual ~ProcessObject( );

      virtual itk::DataObject* _GetInput( unsigned int idx );
      virtual void _SetOutput( unsigned int idx, itk::DataObject* dobj );

      template< class O >
      void _MakeOutput( unsigned int idx )
        {
          if( idx >= this->m_Outputs.size( ) )
            return;
          this->m_Outputs[ idx ] = O::New( );
          this->m_Outputs[ idx ]->SetSource( this );
        }

      virtual std::string _GenerateData( ) = 0;

    private:
      // Purposely not implemented
      ProcessObject( const Self& );
      Self& operator=( const Self& );

    protected:
      itk::ProcessObject::Pointer m_RealProcessObject;
      Parameters m_DefaultParameters;
      Parameters m_Parameters;

      std::vector< DataObject::Pointer > m_Inputs;
      std::vector< DataObject::Pointer > m_Outputs;
    };

  } // ecapseman

} // ecapseman

#endif // __CPPLUGINS__INTERFACE__PROCESSOBJECT__H__

// eof - $RCSfile$