csvFileRdr.h

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/****************************************************************************
 * Copyright (c) 2016 VT MAK
 * All rights reserved.
 ****************************************************************************/


#pragma once

#include <broker/csvFileEntry.h>
#include <vlutil/vlFilename.h>
#include <vl/hostStructs.h>
#include <fstream>

class DtCsvFileReader;

typedef DtCsvFileReader* (*DtCsvFileReaderCreatorFcn)();

class DT_DLL_BROKER DtCsvFileReader
{
public:

   static DtCsvFileReader* creator();

   DtCsvFileReader();

   DtCsvFileReader( const DtString& fileName );

   virtual ~DtCsvFileReader();


   virtual bool openStream();
   virtual bool openStream( const DtString& fileName );
   virtual void closeStream();



   virtual bool isEOF() const;
   virtual bool isOpen();



   virtual void setFilename(const DtString& name);
   virtual const DtString& filename() const;


   // Used to read and parse the rest of the table.
   // Derived Readers should create a derived DtCsvFileEntry
   // and pass that into parseLine.
   // The default simply reads a line and returns a generic
   // DtCsvFileEntry, containing a list of token strings.
   virtual DtCsvFileEntry* readAndParseNextLine(
      DtCsvFileEntryCreatorFcn pEntryCreatorFcn );

protected:

   virtual bool readLine( DtString& line );

   virtual void parseLine( DtCsvFileEntry* pEntry, DtString& line );

private:

   // copy constructor
   DtCsvFileReader( const DtCsvFileReader& orig );

   // assignment operator
   DtCsvFileReader& operator = ( const DtCsvFileReader& orig );

protected:

   DtFilename myFilename;
   std::ifstream myInfile;

};