/**
      @file EventVarLength.h
      @author Brian Magill
      @datecreated 2/22/2008

	$Date:$
    $Revision:$

    @copyright
     (©) Copyright 2006 by GATS Inc.
     11864 Canon Blvd., Suite 101, Newport News, VA 23606

     All Rights Reserved. No part of this software or publication may be
     reproduced, stored in a retrieval system, or transmitted, in any form
     or by any means, electronic, mechanical, photocopying, recording, or
     otherwise without the prior written permission of GATS Inc.

 
      @brief Returns the length of an EventVar object stored in an Event object
      
*/
//----------------------------------------------------------------------
//
#include<string>
//#include<vector>
#include <stdexcept>
#include "EventVar.h"
#include "EventVarLength.h"
//#include "GATS_Utilities.hpp"

using namespace std;
//using namespace gatsDBpp;


long EventVarLength::operator () (std::string varName) const
{

    string strErr;
    long arraySize;
        
    switch (inEvent->EventVarExists(varName) )
        {
        case NOVAR:
            strErr = string("No entry for ") + varName + string(" in ouput Event object");
            throw runtime_error(strErr);
            break;

        case INTEGER:
            {
            EventVar<int> varArray;
            inEvent->getEventVar(varName, varArray);
            arraySize = varArray.size();
            break;
            }
        case FLOAT:
            {
            EventVar<float> varArray;
            inEvent->getEventVar(varName, varArray);
            arraySize = varArray.size();        
            break;
            }        
        case DOUBLE:
            {
            EventVar<double> varArray;
            inEvent->getEventVar(varName, varArray);
            arraySize = varArray.size(); 
            break;
            }
            
        default:
            throw runtime_error("programming error in Event::EventVarExists(). Bad Type!");
            
        }  
 
     return arraySize;
   
}