WSAReader.cpp

Go to the documentation of this file.

//-----------------------------------------------------------------------------
// CVS: $Revision: 2866 $, $Date: 2006-09-15 12:04:57 +0100 (Fri, 15 Sep 2006) $, $Author: rsc $
//-----------------------------------------------------------------------------
#include <iostream>
#include <stdexcept>

#include "Datum.h"
#include "WSAReader.h"

using namespace std;
//-----------------------------------------------------------------------------
WSAReader::WSAReader(const string& aDtdFileName)
  : FileObjectReader(),
    mBufferDtd(aDtdFileName),
    mBufferAry(0),
    mBufferSize(0),
    mIdPtr(0),
    mRaPtr(0),
    mDecPtr(0)
{
  mBufferSize = mBufferDtd.getRecordSize();

  try
  {
    mIdPtr = mBufferDtd.at(0);
    mRaPtr = mBufferDtd.at(1);
    mDecPtr = mBufferDtd.at(2);
  }
  catch (const exception &e)
  {
    cout << "Error in dtd file: " << aDtdFileName << endl;
    throw;
  }

  // Add in errors if data type not expected
  mBufferAry = new char[mBufferSize];
}
//-----------------------------------------------------------------------------
WSAReader::~WSAReader()
{
  delete mBufferAry;
}
//-----------------------------------------------------------------------------
Object* WSAReader::read(FILE* aFilePtr)
{
  Object* theObjectPtr = 0;
  double orthoSD = 0;
  double decSD = 0;

  if (mBufferSize == fread(mBufferAry,
                           sizeof(char),
                           mBufferSize,
                           aFilePtr))
  {
    theObjectPtr = new Datum(mIdPtr->extractBigIntFrom(mBufferAry),
                             mRaPtr->extractDoubleFrom(mBufferAry),
                             orthoSD,
                             mDecPtr->extractDoubleFrom(mBufferAry),
                             decSD);
  }

  return theObjectPtr;
}
//-----------------------------------------------------------------------------